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  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Ground based in situ observations of filter_3pack at Waldhof (DE0002R)" />
  <attribute name="keywords" value="chloride, mass_concentration_of_nitrate_expressed_as_nitrogen_in_dry_aerosol_particles_in _air, DE0002R, air, sulphate_total, mass_concentration_of_sulphur_dioxide_expressed_as_sulphur_in_air, mass_concentration_of_hydrochloric_acid_expressed_as_chlorine_in_air, mole_fraction_of_ammonia_in_air, nitrate, aerosol, mass_concentration_of_sum_nitric_acid_and_nitrate_expressed_as_nitrogen_in_aerosol, mole_fraction_of_sulfur_dioxide_in_air, mole_fraction_of_hydrochloric_acid_in_air, mass_concentration_of_total_sulphateexpressed_as_sulphur_in_dry_aerosol_particles_in_air, mass_concentration_of_nitric_acid_expressed_as_nitrogen_in_air, EMEP, mass_concentration_of_chloride_in_dry_aerosol_particles_in _air, sum_nitric_acid_and_nitrate, ammonia, mass_concentration_of_ammonia_expressed_as_nitrogen_in_air, air+aerosol, mole_fraction_of_nitric_acid_in_air, mass_concentration_of_nitrate_in_dry_aerosol_particles_in _air, Waldhof, nitric_acid, hydrochloric_acid, sulphur_dioxide" />
  <attribute name="id" value="JJKR-WYJY.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="EMEP" />
  <attribute name="acknowledgement" value="Request acknowledgement details from data originator" />
  <attribute name="doi" value="https://doi.org/10.48597/JJKR-WYJY" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Elke Bieber, Elke Bieber, ammonia, chloride, hydrochloric_acid, nitrate, nitric_acid, sulphate_total, sulphur_dioxide, sum_nitric_acid_and_nitrate - filter_3pack at Waldhof, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/JJKR-WYJY" />
  <attribute name="summary" value="Ground based in situ observations of filter_3pack at Waldhof (DE0002R). 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: ammonia in air (mole_fraction_of_ammonia_in_air), ammonia in air (mass_concentration_of_ammonia_expressed_as_nitrogen_in_air), chloride in aerosol (mass_concentration_of_chloride_in_dry_aerosol_particles_in _air), hydrochloric_acid in air (mole_fraction_of_hydrochloric_acid_in_air), hydrochloric_acid in air (mass_concentration_of_hydrochloric_acid_expressed_as_chlorine_in_air), nitrate in aerosol (mass_concentration_of_nitrate_expressed_as_nitrogen_in_dry_aerosol_particles_in _air), nitrate in aerosol (mass_concentration_of_nitrate_in_dry_aerosol_particles_in _air), nitric_acid in air (mole_fraction_of_nitric_acid_in_air), nitric_acid in air (mass_concentration_of_nitric_acid_expressed_as_nitrogen_in_air), sulphate_total in aerosol (mass_concentration_of_total_sulphateexpressed_as_sulphur_in_dry_aerosol_particles_in_air), sulphate_total in aerosol (mass_concentration_of_total_sulphateexpressed_as_sulphur_in_dry_aerosol_particles_in_air), sulphur_dioxide in air (mole_fraction_of_sulfur_dioxide_in_air), sulphur_dioxide in air (mass_concentration_of_sulphur_dioxide_expressed_as_sulphur_in_air), sum_nitric_acid_and_nitrate in air+aerosol (mass_concentration_of_sum_nitric_acid_and_nitrate_expressed_as_nitrogen_in_aerosol)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="DE03L, Umweltbundesamt, UBA-LA, Langen, Paul-Ehrlich-Str. 29, 63225, Langen, Germany" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2019-02-12T09:30:26 UTC" />
  <attribute name="date_metadata_modified" value="2019-02-12T09:30:26 UTC" />
  <attribute name="creator_name" value="Elke Bieber, Elke Bieber" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value=", " />
  <attribute name="creator_institution" value=", " />
  <attribute name="contributor_name" value="Anke Penzlin, Karin Uhse" />
  <attribute name="contributor_role" value="data submitter, 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 (52.802222 10.759444 74.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="52.802222" />
  <attribute name="geospatial_lat_max" type="double" value="52.802222" />
  <attribute name="geospatial_lon_min" type="double" value="10.759444" />
  <attribute name="geospatial_lon_max" type="double" value="10.759444" />
  <attribute name="geospatial_vertical_min" type="double" value="74.0" />
  <attribute name="geospatial_vertical_max" type="double" value="74.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2014-12-31T23:00:00 UTC" />
  <attribute name="time_coverage_end" value="2016-12-31T23:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0002-00-00T00:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-01T00:00:00" />
  <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="Elke Bieber, Elke Bieber, ammonia, chloride, hydrochloric_acid, nitrate, nitric_acid, sulphate_total, sulphur_dioxide, sum_nitric_acid_and_nitrate - filter_3pack at Waldhof, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/JJKR-WYJY" />
  <attribute name="ebas_set_type_code" value="TU" />
  <attribute name="ebas_timezone" value="UTC" />
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  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/JJKR-WYJY" />
  <attribute name="ebas_file_creation" value="2023-12-11T22:20:23.765548 UTC" />
  <attribute name="ebas_export_state" value="2019-04-25T12:39:50.157000 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="20141231230000" />
  <attribute name="ebas_revision_date" value="20190212093026" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="2y" />
  <attribute name="ebas_resolution_code" value="1d" />
  <attribute name="ebas_sample_duration" value="1d" />
  <attribute name="ebas_orig_time_res" value="1d" />
  <attribute name="ebas_station_code" value="DE0002R" />
  <attribute name="ebas_platform_code" value="DE0002S" />
  <attribute name="ebas_station_name" value="Waldhof" />
  <attribute name="ebas_station_latitude" value="52.802222" />
  <attribute name="ebas_station_longitude" value="10.759444" />
  <attribute name="ebas_station_altitude" value="74.0 m" />
  <attribute name="ebas_measurement_height" value="3.8 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_laboratory_code" value="DE03L" />
  <attribute name="ebas_instrument_type" value="filter_3pack" />
  <attribute name="ebas_instrument_name" value="UBA_Wa_3FP_0001" />
  <attribute name="ebas_instrument_manufacturer" value="Riemer" />
  <attribute name="ebas_instrument_model" value="SPF4" />
  <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
  <attribute name="ebas_inlet_type" value="None--open-face filter" />
  <attribute name="ebas_inlet_description" value="Downward facing" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions" />
  <attribute name="ebas_detection_limit_expl" value="Determined by estimation" />
  <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
  <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured if within detection limit, flagged with 780" />
  <attribute name="ebas_organization" value="DE03L, Umweltbundesamt, UBA-LA, Langen, Paul-Ehrlich-Str. 29, , 63225, Langen, Germany" />
  <attribute name="ebas_framework_acronym" value="EMEP" />
  <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
  <attribute name="ebas_framework_description" value="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="Kjetil Tørseth" />
  <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
  <attribute name="ebas_originator" value="Bieber, Elke, , , , , , , , , " />
  <attribute name="ebas_submitter" value="Uhse, Karin, , , , , , , , , " />
  <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  <attribute name="_NCProperties" value="version=2,netcdf=4.9.0,hdf5=1.12.2" />
  <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="comment" value="{&#xA;    &quot;Data definition&quot;: &quot;EBAS_1.1&quot;,&#xA;    &quot;Data license&quot;: &quot;https://creativecommons.org/licenses/by/4.0/&quot;,&#xA;    &quot;Citation&quot;: &quot;Elke Bieber, Elke Bieber, ammonia, chloride, hydrochloric_acid, nitrate, nitric_acid, sulphate_total, sulphur_dioxide, sum_nitric_acid_and_nitrate - filter_3pack at Waldhof, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/JJKR-WYJY&quot;,&#xA;    &quot;Set type code&quot;: &quot;TU&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;JJKR-WYJY.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/JJKR-WYJY&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/JJKR-WYJY&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-11T22:20:23.765548 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2019-04-25T12:39:50.157000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20141231230000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20190212093026&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Statistics&quot;: &quot;arithmetic mean&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;2y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1d&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1d&quot;,&#xA;    &quot;Orig. time res.&quot;: &quot;1d&quot;,&#xA;    &quot;Station code&quot;: &quot;DE0002R&quot;,&#xA;    &quot;Platform code&quot;: &quot;DE0002S&quot;,&#xA;    &quot;Station name&quot;: &quot;Waldhof&quot;,&#xA;    &quot;Station latitude&quot;: &quot;52.802222&quot;,&#xA;    &quot;Station longitude&quot;: &quot;10.759444&quot;,&#xA;    &quot;Station altitude&quot;: &quot;74.0 m&quot;,&#xA;    &quot;Measurement height&quot;: &quot;3.8 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;DE03L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;filter_3pack&quot;,&#xA;    &quot;Instrument name&quot;: &quot;UBA_Wa_3FP_0001&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;Riemer&quot;,&#xA;    &quot;Instrument model&quot;: &quot;SPF4&quot;,&#xA;    &quot;Standard method&quot;: &quot;SOP=EMEP_manual_v1996&quot;,&#xA;    &quot;Inlet type&quot;: &quot;None--open-face filter&quot;,&#xA;    &quot;Inlet description&quot;: &quot;Downward facing&quot;,&#xA;    &quot;Humidity/temperature control&quot;: &quot;None&quot;,&#xA;    &quot;Humidity/temperature control description&quot;: &quot;filter kept at ambient conditions&quot;,&#xA;    &quot;Detection limit expl.&quot;: &quot;Determined by estimation&quot;,&#xA;    &quot;Zero/negative values code&quot;: &quot;Zero/negative possible&quot;,&#xA;    &quot;Zero/negative values&quot;: &quot;Zero/negative values reported as measured if within detection limit, flagged with 780&quot;,&#xA;    &quot;Organization&quot;: &quot;DE03L, Umweltbundesamt, UBA-LA, Langen, Paul-Ehrlich-Str. 29, , 63225, Langen, Germany&quot;,&#xA;    &quot;Framework acronym&quot;: &quot;EMEP&quot;,&#xA;    &quot;Framework name&quot;: &quot;European Monitoring and Evaluation Programme&quot;,&#xA;    &quot;Framework description&quot;: &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.&quot;,&#xA;    &quot;Framework contact name&quot;: &quot;Kjetil Tørseth&quot;,&#xA;    &quot;Framework contact email&quot;: &quot;kt@nilu.no&quot;,&#xA;    &quot;Originator&quot;: &quot;Bieber, Elke, , , , , , , , , &quot;,&#xA;    &quot;Submitter&quot;: &quot;Uhse, Karin, , , , , , , , , &quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;Request acknowledgement details from data originator&quot;&#xA;}" />
  <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="731" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="2" />
  <dimension name="ammonia_nmol_per_mol_qc_flags" length="1" />
  <dimension name="ammonia_ug_N_per_m3_qc_flags" length="1" />
  <dimension name="chloride_qc_flags" length="1" />
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  <dimension name="hydrochloric_acid_ug_Cl_per_m3_qc_flags" length="1" />
  <dimension name="nitrate_ug_N_per_m3_qc_flags" length="1" />
  <dimension name="nitrate_ug_per_m3_qc_flags" length="1" />
  <dimension name="nitric_acid_nmol_per_mol_qc_flags" length="1" />
  <dimension name="nitric_acid_ug_N_per_m3_qc_flags" length="1" />
  <dimension name="sulphate_total_ug_S_per_m3_qc_flags" length="1" />
  <dimension name="sulphate_total_ug_per_m3_qc_flags" length="1" />
  <dimension name="sulphur_dioxide_nmol_per_mol_qc_flags" length="1" />
  <dimension name="sulphur_dioxide_ug_S_per_m3_qc_flags" length="1" />
  <dimension name="sum_nitric_acid_and_nitrate_qc_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2015-01-01T11:00:00Z" />
    <attribute name="time_coverage_end" value="2016-12-31T11:00:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="86400.0" />
    <attribute name="time_coverage_duration" value="P0Y0M730DT0H0M0.000S" />
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    <attribute name="metadata_creation" value="2026-05-18" />
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    <attribute name="ancillary_variables" value="ammonia_ug N_per_m3_qc ammonia_ug N_per_m3_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
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    <attribute name="ebas_platform_code" value="DE0002S" />
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    <attribute name="ebas_station_latitude" value="52.802222" />
    <attribute name="ebas_station_longitude" value="10.759444" />
    <attribute name="ebas_station_altitude" value="74.0 m" />
    <attribute name="ebas_measurement_height" value="3.8 m" />
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    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_medium" value="Cellulose" />
    <attribute name="ebas_coating_solution" value="Oxalic acid" />
    <attribute name="ebas_sample_preparation" value="Acid extraction" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions" />
    <attribute name="ebas_volume_std_temperature" value="293.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_detection_limit_expl" value="Determined by estimation" />
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    <attribute name="ebas_submitter" value="Uhse, Karin, , , , , , , , , " />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="ammonia_ug_N_per_m3_qc" shape="ammonia_ug_N_per_m3_qc_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="ammonia_ug_N_per_m3_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="chloride" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_chloride_in_dry_aerosol_particles_in _air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ancillary_variables" value="chloride_qc chloride_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_statistics" value="arithmetic mean" />
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    <attribute name="ebas_platform_code" value="DE0002S" />
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    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="ebas_matrix" value="aerosol" />
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    <attribute name="ebas_instrument_manufacturer" value="Riemer" />
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    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_medium" value="Teflon" />
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    <attribute name="ebas_sample_preparation" value="Water extraction" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
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    <attribute name="ebas_volume_std_temperature" value="293.15 K" />
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    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
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    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="chloride_qc" shape="chloride_qc_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="chloride_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="hydrochloric_acid_nmol_per_mol" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_hydrochloric_acid_in_air" />
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    <attribute name="ancillary_variables" value="hydrochloric_acid_nmol_per_mol_qc hydrochloric_acid_nmol_per_mol_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_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="DE0002R" />
    <attribute name="ebas_platform_code" value="DE0002S" />
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    <attribute name="ebas_station_longitude" value="10.759444" />
    <attribute name="ebas_station_altitude" value="74.0 m" />
    <attribute name="ebas_measurement_height" value="3.8 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="hydrochloric_acid" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="DE03L" />
    <attribute name="ebas_instrument_type" value="filter_3pack" />
    <attribute name="ebas_instrument_name" value="UBA_Wa_3FP_0001" />
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    <attribute name="ebas_instrument_model" value="SPF4" />
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    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_medium" value="Cellulose" />
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  <variable name="hydrochloric_acid_nmol_per_mol_qc" shape="hydrochloric_acid_nmol_per_mol_qc_flags time" type="int">
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="hydrochloric_acid_ug_Cl_per_m3" 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="ancillary_variables" value="hydrochloric_acid_ug Cl_per_m3_qc hydrochloric_acid_ug Cl_per_m3_ebasmetadata" />
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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="ebas_medium" value="Teflon" />
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    <attribute name="ebas_sample_preparation" value="Water extraction" />
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    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_medium" value="Teflon" />
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    <attribute name="ebas_blank_correction" value="Not blank corrected" />
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  </variable>
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  </variable>
  <variable name="nitric_acid_nmol_per_mol" shape="time" type="double">
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    <attribute name="ebas_blank_correction" value="Blank corrected" />
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    <attribute name="ebas_volume_std_temperature" value="293.15 K" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sulphur_dioxide_expressed_as_sulphur_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="sulphur_dioxide_ug S_per_m3_qc sulphur_dioxide_ug S_per_m3_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="20190212093026" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="DE0002R" />
    <attribute name="ebas_platform_code" value="DE0002S" />
    <attribute name="ebas_station_name" value="Waldhof" />
    <attribute name="ebas_station_latitude" value="52.802222" />
    <attribute name="ebas_station_longitude" value="10.759444" />
    <attribute name="ebas_station_altitude" value="74.0 m" />
    <attribute name="ebas_measurement_height" value="3.8 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sulphur_dioxide" />
    <attribute name="ebas_unit" value="ug S/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="DE03L" />
    <attribute name="ebas_instrument_type" value="filter_3pack" />
    <attribute name="ebas_instrument_name" value="UBA_Wa_3FP_0001" />
    <attribute name="ebas_instrument_manufacturer" value="Riemer" />
    <attribute name="ebas_instrument_model" value="SPF4" />
    <attribute name="ebas_method_ref" value="DE01L_UBA_Sc_ICS_0002" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_medium" value="Cellulose" />
    <attribute name="ebas_coating_solution" value="KOH" />
    <attribute name="ebas_sample_preparation" value="H2O2 extraction" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions" />
    <attribute name="ebas_volume_std_temperature" value="293.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.01669 ug S/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by estimation" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured if within detection limit, flagged with 780" />
    <attribute name="ebas_organization" value="DE03L, Umweltbundesamt, UBA-LA, Langen, Paul-Ehrlich-Str. 29, , 63225, Langen, Germany" />
    <attribute name="ebas_framework_acronym" value="EMEP" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="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="Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_submitter" value="Uhse, Karin, , , , , , , , , " />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="sulphur_dioxide_ug_S_per_m3_qc" shape="sulphur_dioxide_ug_S_per_m3_qc_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="sulphur_dioxide_ug_S_per_m3_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sum_nitric_acid_and_nitrate" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sum_nitric_acid_and_nitrate_expressed_as_nitrogen_in_aerosol" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="sum_nitric_acid_and_nitrate_qc sum_nitric_acid_and_nitrate_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="20190212093026" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="DE0002R" />
    <attribute name="ebas_platform_code" value="DE0002S" />
    <attribute name="ebas_station_name" value="Waldhof" />
    <attribute name="ebas_station_latitude" value="52.802222" />
    <attribute name="ebas_station_longitude" value="10.759444" />
    <attribute name="ebas_station_altitude" value="74.0 m" />
    <attribute name="ebas_measurement_height" value="3.8 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sum_nitric_acid_and_nitrate" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="air+aerosol" />
    <attribute name="ebas_laboratory_code" value="DE03L" />
    <attribute name="ebas_instrument_type" value="filter_3pack" />
    <attribute name="ebas_instrument_name" value="UBA_Wa_3FP_0001" />
    <attribute name="ebas_instrument_manufacturer" value="Riemer" />
    <attribute name="ebas_instrument_model" value="SPF4" />
    <attribute name="ebas_method_ref" value="DE01L_UBA_Sc_ICS_0002" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_medium" value="Teflon" />
    <attribute name="ebas_coating_solution" value="None" />
    <attribute name="ebas_sample_preparation" value="Water+H2O2 extraction" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions" />
    <attribute name="ebas_volume_std_temperature" value="293.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.01129 ug N/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by estimation" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured if within detection limit, flagged with 780" />
    <attribute name="ebas_organization" value="DE03L, Umweltbundesamt, UBA-LA, Langen, Paul-Ehrlich-Str. 29, , 63225, Langen, Germany" />
    <attribute name="ebas_framework_acronym" value="EMEP" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="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="Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_submitter" value="Uhse, Karin, , , , , , , , , " />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="sum_nitric_acid_and_nitrate_qc" shape="sum_nitric_acid_and_nitrate_qc_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="sum_nitric_acid_and_nitrate_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="time" shape="time" type="double">
    <attribute name="long_name" value="time of measurement" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
  <variable name="metadata_time" shape="metadata_time" type="double">
    <attribute name="long_name" value="time of ebas metadata intervals" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
