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  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="VOC (alkenes) at Brotjacklriegel" />
  <attribute name="summary" value="VOC (alkenes) at Brotjacklriegel. These measurements are gathered as a part of the following projects EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ['1-3-butadiene in air (mass_concentration_of_1-3-butadiene_in_air)', '1-3-butadiene in air (mole_fraction_of_13_butadiene_in_air)', '1-butene in air (mass_concentration_of_1-butene_in_air)', '1-butene in air (mole_fraction_of_1_butene_in_air)', '2-methylpropene in air (mole_fraction_of_2_methylpropene_in_air)', 'cis-2-butene in air (mass_concentration_of_cis-2-butene_in_air)', 'cis-2-butene in air (mole_fraction_of_cis_2_butene_in_air)', 'cis-2-pentene in air (mass_concentration_of_cis-2-pentene_in_air)', 'cis-2-pentene in air (mole_fraction_of_cis_2_pentene_in_air)', 'pentenes in air (mole_fraction_of_sum_pentenes_in_air)', 'trans-2-butene in air (mass_concentration_of_trans-2-butene_in_air)', 'trans-2-butene in air (mole_fraction_of_trans_2_butene_in_air)']" />
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  <attribute name="id" value="SWYN-PMWE.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="EMEP" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/SWYN-PMWE" />
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  <attribute name="citation" value="Wallasch, M., EMEP, 2003, VOC (alkenes) at Brotjacklriegel, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/SWYN-PMWE" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="DE02L Umweltbundesamt UBA-BER Berlin &quot;Bismarckplatz 1&quot; 14193 Berlin Germany" />
  <attribute name="date_created" value="2014-05-01T00:00:00.000000Z" />
  <attribute name="date_metadata_modified" value="2003-03-15T00:00:00Z" />
  <attribute name="creator_name" value="Markus Wallasch" />
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  <attribute name="creator_email" value="" />
  <attribute name="creator_institution" value="" />
  <attribute name="contributor_name" value="Markus Wallasch" />
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  <attribute name="publisher_type" value="institution" />
  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
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  <attribute name="geospatial_lon_max" type="double" value="13.219167" />
  <attribute name="geospatial_vertical_min" type="double" value="1016.0" />
  <attribute name="geospatial_vertical_max" type="double" value="1016.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2001-01-01T13:00:00Z" />
  <attribute name="time_coverage_end" value="2002-12-30T13:30:00Z" />
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  <attribute name="timezone" value="UTC" />
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  <attribute name="ebas_period_code" value="2y" />
  <attribute name="ebas_resolution_code" value="1d" />
  <attribute name="ebas_station_code" value="DE0005R" />
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  <attribute name="ebas_station_altitude" value="1016.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="DE08L" />
  <attribute name="ebas_instrument_type" value="steel_canister" />
  <attribute name="ebas_instrument_name" value="sc_05" />
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  <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
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  <attribute name="ebas_originator" value="&quot;Wallasch, Markus, , , , , , , , , &quot;" />
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  <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" />
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  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="_CoordSysBuilder" value="ucar.nc2.internal.dataset.conv.CF1Convention" />
  <dimension name="time" length="208" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="2" />
  <dimension name="qc_1_3_butadiene_ng_per_m3_flags" length="1" />
  <dimension name="qc_1_3_butadiene_pmol_per_mol_flags" length="1" />
  <dimension name="qc_1_butene_ng_per_m3_flags" length="1" />
  <dimension name="qc_1_butene_pmol_per_mol_flags" length="1" />
  <dimension name="qc_2_methylpropene_flags" length="1" />
  <dimension name="qc_cis_2_butene_ng_per_m3_flags" length="1" />
  <dimension name="qc_cis_2_butene_pmol_per_mol_flags" length="1" />
  <dimension name="qc_cis_2_pentene_ng_per_m3_flags" length="1" />
  <dimension name="qc_cis_2_pentene_pmol_per_mol_flags" length="1" />
  <dimension name="qc_pentenes_flags" length="1" />
  <dimension name="qc_trans_2_butene_ng_per_m3_flags" length="1" />
  <dimension name="qc_trans_2_butene_pmol_per_mol_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2001-01-01T13:15:00Z" />
    <attribute name="time_coverage_end" value="2002-12-30T13:15:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="303860.0" />
    <attribute name="time_coverage_duration" value="P0Y0M728DT0H0M0.000S" />
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  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-18" />
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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_1_3_butadiene_ng_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_1-3-butadiene_in_air" />
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    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_1_3_butadiene_ng_per_m3 meta_1_3_butadiene_ng_per_m3" />
    <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_statistics" value="arithmetic mean" />
    <attribute name="ebas_station_code" value="DE0005R" />
    <attribute name="ebas_platform_code" value="DE0005S" />
    <attribute name="ebas_station_name" value="Brotjacklriegel" />
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    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_comment" value="Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.41." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/1-3-butadienemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="1,3-butadiene mass concentration" />
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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="P1D" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_13_butadiene_in_air" />
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    <attribute name="units" value="pmol/mol" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_statistics" value="arithmetic mean" />
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    <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/" />
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    <attribute name="ebas_statistics" value="arithmetic mean" />
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    <attribute name="ebas_comment" value="Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.50." />
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    <attribute name="actris_variable_preferred_term" value="1-butene mass concentration" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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