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  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="VOC (hydrocarbons) at Kosetice (NAOK)" />
  <attribute name="summary" value="VOC (hydrocarbons) at Kosetice (NAOK). These measurements are gathered as a part of the following projects ACTRIS, EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ['2-methylbutane in air (mass_concentration_of_2-methylbutane_in_air)', '2-methylbutane in air (mole_fraction_of_2_methylbutane_in_air)', '2-methylpropane in air (mass_concentration_of_2-methylpropane_in_air)', '2-methylpropane in air (mole_fraction_of_2_methylpropane_in_air)', 'benzene in air (mole_fraction_of_benzene_in_air)', 'ethane in air (mass_concentration_of_ethane_in_air)', 'ethane in air (mole_fraction_of_ethane_in_air)', 'ethene in air (mole_fraction_of_ethene_in_air)', 'ethylbenzene in air (mole_fraction_of_ethylbenzene_in_air)', 'ethyne in air (mole_fraction_of_ethyne_in_air)', 'isoprene in air (mass_concentration_of_isoprene_in_air)', 'isoprene in air (mole_fraction_of_isoprene_in_air)', 'm-p-xylene in air (mole_fraction_of_m-p-xylene_in_air)', 'm-p-xylene in air (mole_fraction_of_m_p_xylene_in_air)', 'n-butane in air (mass_concentration_of_n-butane_in_air)', 'n-butane in air (mole_fraction_of_butane_in_air)', 'n-heptane in air (mass_concentration_of_n-heptane_in_air)', 'n-heptane in air (mole_fraction_of_heptane_in_air)', 'n-hexane in air (mass_concentration_of_n-hexane_in_air)', 'n-hexane in air (mole_fraction_of_hexane_in_air)', 'n-pentane in air (mass_concentration_of_n-pentane_in_air)', 'n-pentane in air (mole_fraction_of_pentane_in_air)', 'o-xylene in air (mole_fraction_of_o-xylene_in_air)', 'o-xylene in air (mole_fraction_of_o_xylene_in_air)', 'propane in air (mass_concentration_of_propane_in_air)', 'propane in air (mole_fraction_of_propane_in_air)', 'propene in air (mole_fraction_of_propene_in_air)', 'toluene in air (mole_fraction_of_toluene_in_air)']" />
  <attribute name="keywords" value="&quot;Kosetice (NAOK)&quot; CZ0003R 2-methylbutane 2-methylpropane benzene ethane ethene ethylbenzene ethyne isoprene m-p-xylene n-butane n-heptane n-hexane n-pentane o-xylene propane propene toluene air ACTRIS EMEP mass_concentration_of_2-methylbutane_in_air mole_fraction_of_2_methylbutane_in_air mass_concentration_of_2-methylpropane_in_air mole_fraction_of_2_methylpropane_in_air mole_fraction_of_benzene_in_air mass_concentration_of_ethane_in_air mole_fraction_of_ethane_in_air mole_fraction_of_ethene_in_air mole_fraction_of_ethylbenzene_in_air mole_fraction_of_ethyne_in_air mass_concentration_of_isoprene_in_air mole_fraction_of_isoprene_in_air mole_fraction_of_m-p-xylene_in_air mole_fraction_of_m_p_xylene_in_air mass_concentration_of_n-butane_in_air mole_fraction_of_butane_in_air mass_concentration_of_n-heptane_in_air mole_fraction_of_heptane_in_air mass_concentration_of_n-hexane_in_air mole_fraction_of_hexane_in_air mass_concentration_of_n-pentane_in_air mole_fraction_of_pentane_in_air mole_fraction_of_o-xylene_in_air mole_fraction_of_o_xylene_in_air mass_concentration_of_propane_in_air mole_fraction_of_propane_in_air mole_fraction_of_propene_in_air mole_fraction_of_toluene_in_air" />
  <attribute name="id" value="RH6R-8Q6T.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, EMEP" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/RH6R-8Q6T" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Holubova, A., Beck, M., ACTRIS, EMEP, 2026, VOC (hydrocarbons) at Kosetice (NAOK), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/RH6R-8Q6T" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="CZ01L &quot;Czech Hydrometeorological Institute&quot; &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2026-04-08T07:43:51.401718Z" />
  <attribute name="date_metadata_modified" value="2026-03-10T00:00:00Z" />
  <attribute name="creator_name" value="Adela Holubova, Martin Beck" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value=", martin.beck@chmi.cz" />
  <attribute name="creator_institution" value=", &quot;Czech Hydrometeorological Instute, Laboratory Libus, CHMI&quot;" />
  <attribute name="contributor_name" value="Lucie Skoloudova" />
  <attribute name="contributor_role" value="data submitter" />
  <attribute name="publisher_type" value="institution" />
  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_institution" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_email" value="ebas@nilu.no" />
  <attribute name="publisher_url" value="https://www.nilu.no/" />
  <attribute name="geospatial_bounds" value="POINT Z EMPTY" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2024-01-01T12:00:00Z" />
  <attribute name="time_coverage_end" value="2025-12-31T12:10:00Z" />
  <attribute name="time_coverage_duration" value="P0001-11-30T00:10:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-04T00:00:00" />
  <attribute name="timezone" value="UTC" />
  <attribute name="ebas_data_definition" value="EBAS_1.1" />
  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Holubova, A., Beck, M., ACTRIS, EMEP, 2026, VOC (hydrocarbons) at Kosetice (NAOK), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/RH6R-8Q6T" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="RH6R-8Q6T.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/RH6R-8Q6T" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/RH6R-8Q6T" />
  <attribute name="ebas_file_creation" value="2026-04-28T01:38:43.867095Z" />
  <attribute name="ebas_export_state" value="2026-04-08T07:43:51.401718Z" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="2024-01-01T12:00:00.000000Z" />
  <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="initial revision, manually inspected" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="2y" />
  <attribute name="ebas_resolution_code" value="4d" />
  <attribute name="ebas_sample_duration" value="10mn" />
  <attribute name="ebas_orig_time_res" value="10mn" />
  <attribute name="ebas_station_code" value="CZ0003R" />
  <attribute name="ebas_platform_code" value="CZ0003S" />
  <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
  <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
  <attribute name="ebas_station_gaw_id" value="KOS" />
  <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
  <attribute name="ebas_station_land_use" value="Agricultural" />
  <attribute name="ebas_station_setting" value="Rural" />
  <attribute name="ebas_station_gaw_type" value="R" />
  <attribute name="ebas_station_wmo_region" type="long" value="6" />
  <attribute name="ebas_station_latitude" type="double" value="49.573394" />
  <attribute name="ebas_station_longitude" type="double" value="15.080278" />
  <attribute name="ebas_station_altitude" value="535.0 m" />
  <attribute name="ebas_measurement_height" value="2.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="CZ01L" />
  <attribute name="ebas_instrument_type" value="steel_canister" />
  <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
  <attribute name="ebas_instrument_manufacturer" value="Andersen" />
  <attribute name="ebas_instrument_model" value="unknown" />
  <attribute name="ebas_instrument_serial_number" value="CN10843028" />
  <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
  <attribute name="ebas_standard_method" value="None" />
  <attribute name="ebas_calibration_scale" value="NPL" />
  <attribute name="ebas_inlet_type" value="Selective filtration" />
  <attribute name="ebas_inlet_description" value="Downward facing with hood" />
  <attribute name="ebas_volume_std_temperature" value="273.15 K" />
  <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
  <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
  <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
  <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
  <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
  <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
  <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
  <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
  <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
  <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
  <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
  <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
  <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
  <attribute name="_NCProperties" value="version=2,netcdf=4.9.3,hdf5=1.14.6" />
  <attribute name="Metadata_Conventions" value="Unidata Dataset Discovery v1.0" />
  <attribute name="geospatial_lat_units" value="degrees_north" />
  <attribute name="geospatial_lon_units" value="degrees_east" />
  <attribute name="standard_name_vocabulary" value="CF-1.7, ACDD-1.3" />
  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
  <attribute name="_CoordSysBuilder" value="ucar.nc2.internal.dataset.conv.CF1Convention" />
  <dimension name="time" length="184" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="2" />
  <dimension name="qc_2_methylbutane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_2_methylbutane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_2_methylbutane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_2_methylbutane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_2_methylbutane_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_2_methylbutane_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_2_methylpropane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_2_methylpropane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_2_methylpropane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_2_methylpropane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_2_methylpropane_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_2_methylpropane_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_benzene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_benzene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_benzene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_benzene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_benzene_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_benzene_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_ethane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_ethane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_ethane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethane_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_ethane_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_ethene_amean_flags" length="1" />
  <dimension name="qc_ethene_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethene_precision_flags" length="1" />
  <dimension name="qc_ethylbenzene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_ethylbenzene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_ethylbenzene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethylbenzene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethylbenzene_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_ethylbenzene_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_ethyne_amean_flags" length="1" />
  <dimension name="qc_ethyne_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethyne_precision_flags" length="1" />
  <dimension name="qc_isoprene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_isoprene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_isoprene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_isoprene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_isoprene_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_isoprene_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_m_p_xylene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_m_p_xylene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_m_p_xylene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_m_p_xylene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_m_p_xylene_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_m_p_xylene_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_n_butane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_n_butane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_n_butane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_butane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_butane_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_n_butane_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_n_heptane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_n_heptane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_n_heptane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_heptane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_heptane_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_n_heptane_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_n_hexane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_n_hexane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_n_hexane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_hexane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_hexane_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_n_hexane_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_n_pentane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_n_pentane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_n_pentane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_pentane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_pentane_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_n_pentane_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_o_xylene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_o_xylene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_o_xylene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_o_xylene_pmol_per_mol_ExpUnc2s_flags" length="1" />
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  <dimension name="qc_o_xylene_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_propane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_propane_pmol_per_mol_amean_flags" length="1" />
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  <dimension name="qc_toluene_pmol_per_mol_amean_flags" length="1" />
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  <dimension name="qc_toluene_pmol_per_mol_ExpUnc2s_flags" length="1" />
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  <dimension name="qc_toluene_pmol_per_mol_precision_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2024-01-01T12:04:59Z" />
    <attribute name="time_coverage_end" value="2025-12-31T12:04:59Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="344655.0" />
    <attribute name="time_coverage_duration" value="P0Y0M730DT0H0M0.000S" />
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  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-18" />
    <attribute name="nciso_version" value="2.4.8" />
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    <attribute name="long_name" value="time bounds for measurement" />
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    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
  </variable>
  <variable name="v_2_methylbutane_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_2-methylbutane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_2_methylbutane_ng_per_m3_amean_qc v_2_methylbutane_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylbutane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="45.0 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.22. Detection limit converted from '14.0 pmol/mol' to '45.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.22." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/2-methylbutanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="2-methylbutane mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_2_methylbutane_ng_per_m3_amean" shape="qc_2_methylbutane_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_2_methylbutane_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_2_methylbutane_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_2_methylbutane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_2_methylbutane_pmol_per_mol_amean_qc v_2_methylbutane_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylbutane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="14.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/2-methylbutaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="2-methylbutane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_2_methylbutane_pmol_per_mol_amean" shape="qc_2_methylbutane_pmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_2_methylbutane_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_2_methylbutane_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_2-methylbutane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_2_methylbutane_ng_per_m3_ExpUnc2s_qc v_2_methylbutane_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylbutane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.2190." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/2-methylbutanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="2-methylbutane mass concentration" />
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    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_2_methylbutane_ng_per_m3_ExpUnc2s" shape="qc_2_methylbutane_ng_per_m3_ExpUnc2s_flags time" type="int">
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    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_2_methylbutane_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_2_methylbutane_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_2_methylbutane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_2_methylbutane_pmol_per_mol_ExpUnc2s_qc v_2_methylbutane_pmol_per_mol_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylbutane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
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    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
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    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/2-methylbutaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="2-methylbutane amount fraction" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
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    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="meta_2_methylbutane_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_2_methylbutane_ng_per_m3_precision" shape="time" type="double">
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    <attribute name="standard_name" value="mass_concentration_of_2-methylbutane_in_air" />
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    <attribute name="ancillary_variables" value="v_2_methylbutane_ng_per_m3_precision_qc v_2_methylbutane_ng_per_m3_precision_ebasmetadata" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
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    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylbutane" />
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    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.2190." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/2-methylbutanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="2-methylbutane mass concentration" />
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    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_2_methylbutane_ng_per_m3_precision" shape="qc_2_methylbutane_ng_per_m3_precision_flags time" type="int">
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  <variable name="meta_2_methylbutane_ng_per_m3_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_2_methylbutane_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_2_methylbutane_in_air" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
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    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylbutane" />
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    <attribute name="ebas_comment" value="No SOP currently available" />
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  <variable name="qc_2_methylbutane_pmol_per_mol_precision" shape="qc_2_methylbutane_pmol_per_mol_precision_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
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  </variable>
  <variable name="meta_2_methylbutane_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_2_methylpropane_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_2-methylpropane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ancillary_variables" value="v_2_methylpropane_ng_per_m3_amean_qc v_2_methylpropane_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
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    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylpropane" />
    <attribute name="ebas_unit" value="ng/m3" />
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    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
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    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.59. Detection limit converted from '14.0 pmol/mol' to '36.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.59." />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_2_methylpropane_ng_per_m3_amean" shape="qc_2_methylpropane_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_2_methylpropane_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_2_methylpropane_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_2_methylpropane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_2_methylpropane_pmol_per_mol_amean_qc v_2_methylpropane_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylpropane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
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    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
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    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="14.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/2-methyl-propaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="2-methyl-propane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_2_methylpropane_pmol_per_mol_amean" shape="qc_2_methylpropane_pmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_2_methylpropane_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_2_methylpropane_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_2-methylpropane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_2_methylpropane_ng_per_m3_ExpUnc2s_qc v_2_methylpropane_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylpropane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
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    <attribute name="ebas_instrument_model" value="unknown" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.5932." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/2-methyl-propanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="2-methyl-propane mass concentration" />
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  </variable>
  <variable name="qc_2_methylpropane_ng_per_m3_ExpUnc2s" shape="qc_2_methylpropane_ng_per_m3_ExpUnc2s_flags time" type="int">
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  <variable name="meta_2_methylpropane_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_2_methylpropane_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_2_methylpropane_in_air" />
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    <attribute name="ancillary_variables" value="v_2_methylpropane_pmol_per_mol_ExpUnc2s_qc v_2_methylpropane_pmol_per_mol_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
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    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylpropane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
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    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
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    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/2-methyl-propaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="2-methyl-propane amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_2_methylpropane_pmol_per_mol_ExpUnc2s" shape="qc_2_methylpropane_pmol_per_mol_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_2_methylpropane_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_2_methylpropane_ng_per_m3_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_2-methylpropane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_2_methylpropane_ng_per_m3_precision_qc v_2_methylpropane_ng_per_m3_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylpropane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
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    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.5932." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/2-methyl-propanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="2-methyl-propane mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_2_methylpropane_ng_per_m3_precision" shape="qc_2_methylpropane_ng_per_m3_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_2_methylpropane_ng_per_m3_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_2_methylpropane_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_2_methylpropane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_2_methylpropane_pmol_per_mol_precision_qc v_2_methylpropane_pmol_per_mol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylpropane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
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    <attribute name="ebas_inlet_type" value="Selective filtration" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/2-methyl-propaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="2-methyl-propane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_2_methylpropane_pmol_per_mol_precision" shape="qc_2_methylpropane_pmol_per_mol_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_2_methylpropane_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzene_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ancillary_variables" value="v_benzene_ng_per_m3_amean_qc v_benzene_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
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    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
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    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
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    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="98.0 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
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    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="benzene mass concentration" />
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    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_benzene_ng_per_m3_amean" shape="qc_benzene_ng_per_m3_amean_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_benzene_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_benzene_pmol_per_mol_amean_qc v_benzene_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
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    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
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    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="28.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="benzene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_benzene_pmol_per_mol_amean" shape="qc_benzene_pmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_benzene_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzene_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_benzene_ng_per_m3_ExpUnc2s_qc v_benzene_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.4851." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="benzene mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_benzene_ng_per_m3_ExpUnc2s" shape="qc_benzene_ng_per_m3_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_benzene_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzene_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_benzene_pmol_per_mol_ExpUnc2s_qc v_benzene_pmol_per_mol_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
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    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="benzene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_benzene_pmol_per_mol_ExpUnc2s" shape="qc_benzene_pmol_per_mol_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_benzene_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzene_ng_per_m3_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_benzene_ng_per_m3_precision_qc v_benzene_ng_per_m3_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
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    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.4851." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="benzene mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_benzene_ng_per_m3_precision" shape="qc_benzene_ng_per_m3_precision_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="_FillValue" type="int" value="0" />
  </variable>
  <variable name="meta_benzene_ng_per_m3_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzene_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_benzene_pmol_per_mol_precision_qc v_benzene_pmol_per_mol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="benzene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_benzene_pmol_per_mol_precision" shape="qc_benzene_pmol_per_mol_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_benzene_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethane_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ethane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_ethane_ng_per_m3_amean_qc v_ethane_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="16.0 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.34. Detection limit converted from '12.0 pmol/mol' to '16.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.34." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="ethane mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ethane_ng_per_m3_amean" shape="qc_ethane_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethane_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethane_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_ethane_pmol_per_mol_amean_qc v_ethane_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="12.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ethane_pmol_per_mol_amean" shape="qc_ethane_pmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethane_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethane_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ethane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_ethane_ng_per_m3_ExpUnc2s_qc v_ethane_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
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    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_inlet_type" value="Selective filtration" />
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    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.3416." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="ethane mass concentration" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
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    <attribute name="actris_access_restriction" type="long" value="0" />
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    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethane_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethane_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
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    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_orig_time_res" value="10mn" />
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    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethane" />
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    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethane amount fraction" />
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  <variable name="qc_ethane_pmol_per_mol_ExpUnc2s" shape="qc_ethane_pmol_per_mol_ExpUnc2s_flags time" type="int">
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    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethane_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethane_ng_per_m3_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ethane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
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    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethane" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.3416." />
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  <variable name="qc_ethane_ng_per_m3_precision" shape="qc_ethane_ng_per_m3_precision_flags time" type="int">
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  <variable name="meta_ethane_ng_per_m3_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethane_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ancillary_variables" value="v_ethane_pmol_per_mol_precision_qc v_ethane_pmol_per_mol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethane" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ethane_pmol_per_mol_precision" shape="qc_ethane_pmol_per_mol_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethane_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethene_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_ethene_amean_qc v_ethene_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
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    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="20.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/etheneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ethene_amean" shape="qc_ethene_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethene_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethene_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_ethene_ExpUnc2s_qc v_ethene_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
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    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/etheneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethene amount fraction" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_ethene_ExpUnc2s" shape="qc_ethene_ExpUnc2s_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethene_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethene_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_ethene_precision_qc v_ethene_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
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    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethene" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/etheneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethene amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
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    <attribute name="units" value="1" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
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    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethylbenzene" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
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    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethylbenzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="ethylbenzene mass concentration" />
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    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethylbenzene_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
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    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_comment" value="No SOP currently available" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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  <variable name="meta_ethylbenzene_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethylbenzene_pmol_per_mol_ExpUnc2s" shape="time" type="double">
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    <attribute name="ebas_component" value="ethylbenzene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethylbenzeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethylbenzene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ethylbenzene_pmol_per_mol_ExpUnc2s" shape="qc_ethylbenzene_pmol_per_mol_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethylbenzene_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethylbenzene_ng_per_m3_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethylbenzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_ethylbenzene_ng_per_m3_precision_qc v_ethylbenzene_ng_per_m3_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethylbenzene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethylbenzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="ethylbenzene mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ethylbenzene_ng_per_m3_precision" shape="qc_ethylbenzene_ng_per_m3_precision_flags time" type="int">
    <attribute name="units" value="1" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
  </variable>
  <variable name="meta_ethylbenzene_ng_per_m3_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethylbenzene_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethylbenzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_ethylbenzene_pmol_per_mol_precision_qc v_ethylbenzene_pmol_per_mol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
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    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethylbenzene" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethylbenzeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethylbenzene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
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  </variable>
  <variable name="qc_ethylbenzene_pmol_per_mol_precision" shape="qc_ethylbenzene_pmol_per_mol_precision_flags time" type="int">
    <attribute name="units" value="1" />
    <attribute name="_FillValue" type="int" value="0" />
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  </variable>
  <variable name="meta_ethylbenzene_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethyne_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethyne_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_ethyne_amean_qc v_ethyne_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethyne" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
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    <attribute name="ebas_instrument_model" value="unknown" />
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    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
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    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethyneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethyne amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ethyne_amean" shape="qc_ethyne_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethyne_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethyne_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethyne_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_ethyne_ExpUnc2s_qc v_ethyne_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethyne" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethyneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethyne amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ethyne_ExpUnc2s" shape="qc_ethyne_ExpUnc2s_flags time" type="int">
    <attribute name="units" value="1" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
  </variable>
  <variable name="meta_ethyne_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethyne_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethyne_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_ethyne_precision_qc v_ethyne_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethyne" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethyneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethyne amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ethyne_precision" shape="qc_ethyne_precision_flags time" type="int">
    <attribute name="units" value="1" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
  </variable>
  <variable name="meta_ethyne_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_isoprene_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_isoprene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_isoprene_ng_per_m3_amean_qc v_isoprene_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="isoprene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="43.0 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.04. Detection limit converted from '14.0 pmol/mol' to '43.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.04." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/isoprenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="isoprene mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_isoprene_ng_per_m3_amean" shape="qc_isoprene_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_isoprene_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_isoprene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_isoprene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_isoprene_pmol_per_mol_amean_qc v_isoprene_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
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    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
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    <attribute name="ebas_station_setting" value="Rural" />
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    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/isopreneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="isoprene amount fraction" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
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    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_isoprene_pmol_per_mol_amean" shape="qc_isoprene_pmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_isoprene_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_isoprene_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_isoprene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_isoprene_ng_per_m3_ExpUnc2s_qc v_isoprene_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="isoprene" />
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    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
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    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/isoprenemassconcentration" />
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  <variable name="meta_isoprene_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_isoprene_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
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    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/isopreneamountfraction" />
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  <variable name="qc_isoprene_pmol_per_mol_ExpUnc2s" shape="qc_isoprene_pmol_per_mol_ExpUnc2s_flags time" type="int">
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  <variable name="meta_isoprene_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_isoprene_ng_per_m3_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_isoprene_in_air" />
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    <attribute name="ancillary_variables" value="v_isoprene_ng_per_m3_precision_qc v_isoprene_ng_per_m3_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
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    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="isoprene" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.0391." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/isoprenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="isoprene mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_isoprene_ng_per_m3_precision" shape="qc_isoprene_ng_per_m3_precision_flags time" type="int">
    <attribute name="units" value="1" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
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  <variable name="meta_isoprene_ng_per_m3_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_isoprene_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_isoprene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_isoprene_pmol_per_mol_precision_qc v_isoprene_pmol_per_mol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="isoprene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/isopreneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="isoprene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_isoprene_pmol_per_mol_precision" shape="qc_isoprene_pmol_per_mol_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_isoprene_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_m_p_xylene_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_m-p-xylene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_m_p_xylene_ng_per_m3_amean_qc v_m_p_xylene_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="m-p-xylene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
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    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/mDivp-xylenesmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="m/p-xylenes mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_m_p_xylene_ng_per_m3_amean" shape="qc_m_p_xylene_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_m_p_xylene_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_m_p_xylene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_m_p_xylene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_m_p_xylene_pmol_per_mol_amean_qc v_m_p_xylene_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
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    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="m-p-xylene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
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    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/mDivp-xylenesamountfraction" />
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    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/mDivp-xylenesamountfraction" />
    <attribute name="actris_variable_preferred_term" value="m/p-xylenes amount fraction" />
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    <attribute name="units" value="1" />
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  <variable name="meta_m_p_xylene_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-butane" />
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    <attribute name="ebas_matrix" value="air" />
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  <variable name="meta_n_butane_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-butaneamountfraction" />
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  <variable name="qc_n_butane_pmol_per_mol_amean" shape="qc_n_butane_pmol_per_mol_amean_flags time" type="int">
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  </variable>
  <variable name="meta_n_butane_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_butane_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-butane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
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    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.5932." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-butanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="n-butane mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
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    <attribute name="units" value="1" />
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  <variable name="meta_n_butane_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_butane_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_butane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_n_butane_pmol_per_mol_ExpUnc2s_qc v_n_butane_pmol_per_mol_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-butane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
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    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
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    <attribute name="ebas_standard_method" value="None" />
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    <attribute name="ebas_inlet_type" value="Selective filtration" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-butaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="n-butane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_n_butane_pmol_per_mol_ExpUnc2s" shape="qc_n_butane_pmol_per_mol_ExpUnc2s_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_n_butane_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_butane_ng_per_m3_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_n-butane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_n_butane_ng_per_m3_precision_qc v_n_butane_ng_per_m3_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-butane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.5932." />
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  <variable name="qc_n_butane_ng_per_m3_precision" shape="qc_n_butane_ng_per_m3_precision_flags time" type="int">
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  <variable name="meta_n_butane_ng_per_m3_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_butane_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_butane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ancillary_variables" value="v_n_butane_pmol_per_mol_precision_qc v_n_butane_pmol_per_mol_precision_ebasmetadata" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-butane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
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    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-butaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="n-butane amount fraction" />
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    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_n_butane_pmol_per_mol_precision" shape="qc_n_butane_pmol_per_mol_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_n_butane_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_heptane_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_n-heptane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_n_heptane_ng_per_m3_amean_qc v_n_heptane_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-heptane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="58.0 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.47. Detection limit converted from '13.0 pmol/mol' to '58.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.47." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-heptanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="n-heptane mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_n_heptane_ng_per_m3_amean" shape="qc_n_heptane_ng_per_m3_amean_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_n_heptane_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_heptane_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_heptane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_n_heptane_pmol_per_mol_amean_qc v_n_heptane_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-heptane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
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    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
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    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="13.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-heptaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="n-heptane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_n_heptane_pmol_per_mol_amean" shape="qc_n_heptane_pmol_per_mol_amean_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_n_heptane_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_heptane_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_n-heptane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_n_heptane_ng_per_m3_ExpUnc2s_qc v_n_heptane_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-heptane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-heptanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="n-heptane mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_n_heptane_ng_per_m3_ExpUnc2s" shape="qc_n_heptane_ng_per_m3_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_n_heptane_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_heptane_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_heptane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_n_heptane_pmol_per_mol_ExpUnc2s_qc v_n_heptane_pmol_per_mol_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-heptane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
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    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
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    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-heptaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="n-heptane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_n_heptane_pmol_per_mol_ExpUnc2s" shape="qc_n_heptane_pmol_per_mol_ExpUnc2s_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
  </variable>
  <variable name="meta_n_heptane_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_heptane_ng_per_m3_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_n-heptane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_n_heptane_ng_per_m3_precision_qc v_n_heptane_ng_per_m3_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-heptane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.4706." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-heptanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="n-heptane mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
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  <variable name="qc_n_heptane_ng_per_m3_precision" shape="qc_n_heptane_ng_per_m3_precision_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_n_heptane_ng_per_m3_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_heptane_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-heptane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
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    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
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    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
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    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-heptaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="n-heptane amount fraction" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
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    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_n_heptane_pmol_per_mol_precision" shape="qc_n_heptane_pmol_per_mol_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_n_heptane_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_hexane_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_n-hexane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_n_hexane_ng_per_m3_amean_qc v_n_hexane_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-hexane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
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    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
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    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="54.0 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.84. Detection limit converted from '14.0 pmol/mol' to '54.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.84." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-hexanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="n-hexane mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_n_hexane_ng_per_m3_amean" shape="qc_n_hexane_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_n_hexane_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_hexane_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_hexane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_n_hexane_pmol_per_mol_amean_qc v_n_hexane_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-hexane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="14.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-hexaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="n-hexane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_n_hexane_pmol_per_mol_amean" shape="qc_n_hexane_pmol_per_mol_amean_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_n_hexane_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_hexane_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_n-hexane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_n_hexane_ng_per_m3_ExpUnc2s_qc v_n_hexane_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-hexane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.8448." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-hexanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="n-hexane mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
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    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_n_hexane_ng_per_m3_ExpUnc2s" shape="qc_n_hexane_ng_per_m3_ExpUnc2s_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_n_hexane_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_hexane_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_hexane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_n_hexane_pmol_per_mol_ExpUnc2s_qc v_n_hexane_pmol_per_mol_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-hexane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-hexaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="n-hexane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
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    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_n_hexane_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_hexane_ng_per_m3_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_n-hexane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_n_hexane_ng_per_m3_precision_qc v_n_hexane_ng_per_m3_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-hexane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.8448." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-hexanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="n-hexane mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_n_hexane_ng_per_m3_precision" shape="qc_n_hexane_ng_per_m3_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_n_hexane_ng_per_m3_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_hexane_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_hexane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_n_hexane_pmol_per_mol_precision_qc v_n_hexane_pmol_per_mol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-hexane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
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    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-hexaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="n-hexane amount fraction" />
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    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_n_hexane_pmol_per_mol_precision" shape="qc_n_hexane_pmol_per_mol_precision_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
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  </variable>
  <variable name="meta_n_hexane_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_pentane_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_n-pentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ancillary_variables" value="v_n_pentane_ng_per_m3_amean_qc v_n_pentane_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
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    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-pentane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
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    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="55.0 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
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    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.22. Detection limit converted from '17.0 pmol/mol' to '55.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.22." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-pentanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="n-pentane mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_n_pentane_ng_per_m3_amean" shape="qc_n_pentane_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_n_pentane_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_pentane_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_pentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_n_pentane_pmol_per_mol_amean_qc v_n_pentane_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-pentane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="17.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-pentaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="n-pentane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_n_pentane_pmol_per_mol_amean" shape="qc_n_pentane_pmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_n_pentane_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_pentane_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_n-pentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_n_pentane_ng_per_m3_ExpUnc2s_qc v_n_pentane_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-pentane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.2190." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-pentanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="n-pentane mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_n_pentane_ng_per_m3_ExpUnc2s" shape="qc_n_pentane_ng_per_m3_ExpUnc2s_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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  </variable>
  <variable name="meta_n_pentane_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_pentane_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_pentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_n_pentane_pmol_per_mol_ExpUnc2s_qc v_n_pentane_pmol_per_mol_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-pentane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
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    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
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    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-pentaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="n-pentane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_n_pentane_pmol_per_mol_ExpUnc2s" shape="qc_n_pentane_pmol_per_mol_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_n_pentane_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_pentane_ng_per_m3_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_n-pentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_n_pentane_ng_per_m3_precision_qc v_n_pentane_ng_per_m3_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-pentane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.2190." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-pentanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="n-pentane mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_n_pentane_ng_per_m3_precision" shape="qc_n_pentane_ng_per_m3_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_n_pentane_ng_per_m3_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_pentane_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_pentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_n_pentane_pmol_per_mol_precision_qc v_n_pentane_pmol_per_mol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-pentane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-pentaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="n-pentane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_n_pentane_pmol_per_mol_precision" shape="qc_n_pentane_pmol_per_mol_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_n_pentane_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_o_xylene_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_o-xylene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_o_xylene_ng_per_m3_amean_qc v_o_xylene_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="o-xylene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
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    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/o-xylenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="o-xylene mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_o_xylene_ng_per_m3_amean" shape="qc_o_xylene_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_o_xylene_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_o_xylene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_o_xylene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_o_xylene_pmol_per_mol_amean_qc v_o_xylene_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="o-xylene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
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    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="20.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/o-xyleneamountfraction" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  </variable>
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="o-xylene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
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    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/o-xyleneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="o-xylene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_o_xylene_pmol_per_mol_precision" shape="qc_o_xylene_pmol_per_mol_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_o_xylene_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propane_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_propane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_propane_ng_per_m3_amean_qc v_propane_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/propanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="propane mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_propane_ng_per_m3_amean" shape="qc_propane_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propane_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propane_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_propane_pmol_per_mol_amean_qc v_propane_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/propaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="propane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_propane_pmol_per_mol_amean" shape="qc_propane_pmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propane_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propane_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_propane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_propane_ng_per_m3_ExpUnc2s_qc v_propane_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
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    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
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    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.9674." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/propanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="propane mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_propane_ng_per_m3_ExpUnc2s" shape="qc_propane_ng_per_m3_ExpUnc2s_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propane_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propane_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_propane_pmol_per_mol_ExpUnc2s_qc v_propane_pmol_per_mol_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/propaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="propane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_propane_pmol_per_mol_ExpUnc2s" shape="qc_propane_pmol_per_mol_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propane_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propane_ng_per_m3_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_propane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_propane_ng_per_m3_precision_qc v_propane_ng_per_m3_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
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    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
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    <attribute name="ebas_inlet_type" value="Selective filtration" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.9674." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/propanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="propane mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_propane_ng_per_m3_precision" shape="qc_propane_ng_per_m3_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propane_ng_per_m3_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propane_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_propane_pmol_per_mol_precision_qc v_propane_pmol_per_mol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
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    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propane" />
    <attribute name="ebas_unit" value="pmol/mol" />
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    <attribute name="ebas_laboratory_code" value="CZ01L" />
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    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
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    <attribute name="ebas_inlet_type" value="Selective filtration" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/propaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="propane amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
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    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_propane_pmol_per_mol_precision" shape="qc_propane_pmol_per_mol_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propane_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propene_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_propene_amean_qc v_propene_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
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    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/propeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="propene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/steelcanistersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_propene_amean" shape="qc_propene_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propene_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propene_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_propene_ExpUnc2s_qc v_propene_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_wdca_id" value="GAWACZ__KOS" />
    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
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    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/propeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="propene amount fraction" />
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  <variable name="qc_propene_ExpUnc2s" shape="qc_propene_ExpUnc2s_flags time" type="int">
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    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propene_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propene_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
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    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/propeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="propene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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  <variable name="qc_propene_precision" shape="qc_propene_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propene_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_toluene_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_toluene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_toluene_ng_per_m3_amean_qc v_toluene_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
    <attribute name="ebas_instrument_name" value="Andersen_instrument_Agilent_7890A" />
    <attribute name="ebas_instrument_manufacturer" value="Andersen" />
    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
    <attribute name="ebas_submitter" value="&quot;Skoloudova, Lucie, lucie.skoloudova@chmi.cz, Czech Hydrometeorological Instute, CHMI, AQIS, Prague, Na Sabatce 17, CZ-14306, Prague, Czech Republic&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/toluenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="toluene mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_toluene_ng_per_m3_amean" shape="qc_toluene_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_toluene_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_toluene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_toluene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_toluene_pmol_per_mol_amean_qc v_toluene_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
    <attribute name="ebas_station_name" value="Kosetice (NAOK)" />
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    <attribute name="ebas_station_gaw_id" value="KOS" />
    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CZ01L" />
    <attribute name="ebas_instrument_type" value="steel_canister" />
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    <attribute name="ebas_instrument_model" value="unknown" />
    <attribute name="ebas_instrument_serial_number" value="CN10843028" />
    <attribute name="ebas_method_ref" value="CZ01L_T21AA_023_15" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_inlet_type" value="Selective filtration" />
    <attribute name="ebas_inlet_description" value="Downward facing with hood" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_detection_limit_expl" value="Detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CZ01L, Czech Hydrometeorological Institute, , , &quot;Na Sabatce 17, CZ-14306 PRAHA 4, Czech Republic&quot;, , , , " />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Holubova, Adela, , , , , , , , , &quot;, &quot;Beck, Martin, martin.beck@chmi.cz, Czech Hydrometeorological Instute, CHMI, Laboratory Libus, Na Sabatce 17, Na Sabatce 17, CZ-14306, Prague, Cz&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/tolueneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="toluene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="steel canister sampler" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP" />
    <attribute name="actris_temporal_resolution" value="P4D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_toluene_pmol_per_mol_amean" shape="qc_toluene_pmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_toluene_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_toluene_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_toluene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_toluene_ng_per_m3_ExpUnc2s_qc v_toluene_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-10T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
    <attribute name="ebas_station_code" value="CZ0003R" />
    <attribute name="ebas_platform_code" value="CZ0003S" />
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    <attribute name="ebas_station_gaw_name" value="Kosetice Observatory" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="49.573394" />
    <attribute name="ebas_station_longitude" type="double" value="15.080278" />
    <attribute name="ebas_station_altitude" value="535.0 m" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
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    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/toluenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="toluene mass concentration" />
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  </variable>
  <variable name="meta_toluene_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_toluene_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="10mn" />
    <attribute name="ebas_orig_time_res" value="10mn" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="ebas_station_altitude" value="535.0 m" />
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    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/toluenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="toluene mass concentration" />
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  <variable name="meta_toluene_ng_per_m3_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_toluene_pmol_per_mol_precision" shape="time" type="double">
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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  <variable name="meta_toluene_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="time" shape="time" type="double">
    <attribute name="long_name" value="time of measurement" />
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    <attribute name="units" value="days since 1900-01-01T00:00:00Z" />
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    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
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