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  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="PAHs (polycyclic aromatic hydrocarbons, 16) at Westerland" />
  <attribute name="summary" value="PAHs (polycyclic aromatic hydrocarbons, 16) at Westerland. These measurements are gathered as a part of the following projects CAMP, EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ['benz_a_anthracene in air+pm10 (mass_concentration_of_benz_a_anthracene_)', 'benzo_a_pyrene in air+pm10 (mass_concentration_of_benzo_a_pyrene_)', 'benzo_bjk_fluoranthenes in air+pm10 (mass_concentration_of_benzo_bjk_fluoranthenes_)', 'dibenzo_ah_anthracene in air+pm10 (mass_concentration_of_dibenzo_ah_anthracene_)', 'inden_123cd_pyrene in air+pm10 (mass_concentration_of_inden_123cd_pyrene_)']" />
  <attribute name="keywords" value="Westerland DE0001R benz_a_anthracene benzo_a_pyrene benzo_bjk_fluoranthenes dibenzo_ah_anthracene inden_123cd_pyrene air+pm10 CAMP EMEP mass_concentration_of_benz_a_anthracene_ mass_concentration_of_benzo_a_pyrene_ mass_concentration_of_benzo_bjk_fluoranthenes_ mass_concentration_of_dibenzo_ah_anthracene_ mass_concentration_of_inden_123cd_pyrene_" />
  <attribute name="id" value="VB55-UVAQ.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="CAMP, EMEP" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/93T5-F8CR, https://doi.org/10.48597/VB55-UVAQ" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Bieber, E., CAMP, EMEP, 2025, PAHs (polycyclic aromatic hydrocarbons, 16) at Westerland, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/VB55-UVAQ" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="DE03L Umweltbundesamt UBA-LA Langen &quot;Paul-Ehrlich-Str. 29&quot; 63225 Langen Germany" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2026-04-15T12:26:22.677048Z" />
  <attribute name="date_metadata_modified" value="2025-10-07T13:15:08Z" />
  <attribute name="creator_name" value="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" />
  <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="2014-12-31T23:00:00Z" />
  <attribute name="time_coverage_end" value="2015-12-31T23:00:00Z" />
  <attribute name="time_coverage_duration" value="P0001-00-00T00:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-01-00T00:00:00" />
  <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="Bieber, E., CAMP, EMEP, 2025, PAHs (polycyclic aromatic hydrocarbons, 16) at Westerland, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/VB55-UVAQ" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="VB55-UVAQ.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/VB55-UVAQ" />
  <attribute name="ebas_file_creation" value="2026-04-28T02:25:14.886179Z" />
  <attribute name="ebas_export_state" value="2026-04-15T12:26:22.677048Z" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="2014-12-31T23:00:00.000000Z" />
  <attribute name="ebas_revision_date" value="2025-10-07T13:15:08.790614Z" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="initial revision, automatically generated, manually inspected" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="1y" />
  <attribute name="ebas_resolution_code" value="1mo" />
  <attribute name="ebas_sample_duration" value="1mo" />
  <attribute name="ebas_orig_time_res" value="6d" />
  <attribute name="ebas_station_code" value="DE0001R" />
  <attribute name="ebas_platform_code" value="DE0001S" />
  <attribute name="ebas_station_name" value="Westerland" />
  <attribute name="ebas_station_gaw_id" value="WES" />
  <attribute name="ebas_station_gaw_name" value="Westerland" />
  <attribute name="ebas_station_other_ids" value="DEUB001 (UBA), 10020-0 (WMO)" />
  <attribute name="ebas_station_land_use" value="Grassland" />
  <attribute name="ebas_station_setting" value="Coastal" />
  <attribute name="ebas_station_gaw_type" value="C" />
  <attribute name="ebas_station_wmo_region" type="long" value="6" />
  <attribute name="ebas_station_latitude" type="double" value="54.925556" />
  <attribute name="ebas_station_longitude" type="double" value="8.309722" />
  <attribute name="ebas_station_altitude" value="12.0 m" />
  <attribute name="ebas_measurement_latitude" type="double" value="54.892" />
  <attribute name="ebas_measurement_longitude" type="double" value="8.3246" />
  <attribute name="ebas_measurement_altitude" value="5.0 m" />
  <attribute name="ebas_measurement_height" value="1.75 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_unit" value="ng/m3" />
  <attribute name="ebas_matrix" value="air+pm10" />
  <attribute name="ebas_laboratory_code" value="DE03L" />
  <attribute name="ebas_instrument_type" value="high_vol_sampler" />
  <attribute name="ebas_instrument_name" value="UBA_We_HVS_0401" />
  <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
  <attribute name="ebas_instrument_model" value="DHA-80" />
  <attribute name="ebas_method_ref" value="DE03L_UBA_La_GMS_0001" />
  <attribute name="ebas_standard_method" value="None" />
  <attribute name="ebas_inlet_type" value="Impactor--direct" />
  <attribute name="ebas_inlet_description" value="PM 10, upward facing" />
  <attribute name="ebas_medium" value="Filter+PUF (Polyurethane foam)" />
  <attribute name="ebas_coating_solution" value="None" />
  <attribute name="ebas_sample_preparation" value="Organic extraction" />
  <attribute name="ebas_blank_correction" value="Not 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="273.15 K" />
  <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
  <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of laboratory blanks" />
  <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
  <attribute name="ebas_zero_negative_values" value="Small values reported as half of 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="CAMP, EMEP" />
  <attribute name="ebas_framework_name" value="OSPARCOM - Comprehensive Atmospheric Monitoring Programme, European Monitoring and Evaluation Programme" />
  <attribute name="ebas_framework_description" value="The OSPARCOM Comprehensive Atmospheric Monitoring Programme goal is the assessment of the atmospheric input of selected contaminants to the OSPAR maritime area and regions., 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="Wenche Aas, Kjetil Tørseth" />
  <attribute name="ebas_framework_contact_email" value="waa@nilu.no, kt@nilu.no" />
  <attribute name="ebas_originator" value="&quot;Bieber, Elke, , , , , , , , , &quot;" />
  <attribute name="ebas_submitter" value="&quot;Penzlin, Anke, anke.penzlin@uba.de, Umweltbundesamt Langen, UBA, Air Monitoring Network, Paul-Ehrlich-Str. 29, , 63225, Langen, Germany&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: CAMP, EMEP. Request acknowledgement details from data originator" />
  <attribute name="ebas_comment" value="5 one-day samples per month (every 6 days)" />
  <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="12" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="2" />
  <dimension name="qc_benz_a_anthracene_flags" length="1" />
  <dimension name="qc_benzo_a_pyrene_flags" length="1" />
  <dimension name="qc_benzo_bjk_fluoranthenes_flags" length="1" />
  <dimension name="qc_dibenzo_ah_anthracene_flags" length="1" />
  <dimension name="qc_inden_123cd_pyrene_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2015-01-16T11:00:00Z" />
    <attribute name="time_coverage_end" value="2015-12-16T11:00:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="2623418.0" />
    <attribute name="time_coverage_duration" value="P0Y0M334DT0H0M0.000S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-18" />
    <attribute name="nciso_version" value="2.4.8" />
  </group>
  <variable name="time_bnds" shape="time tbnds" type="double">
    <attribute name="long_name" value="time bounds for measurement" />
  </variable>
  <variable name="metadata_time_bnds" shape="metadata_time tbnds" type="double">
    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
  </variable>
  <variable name="v_benz_a_anthracene" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_benz_a_anthracene_" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_benz_a_anthracene_qc v_benz_a_anthracene_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="2025-10-07T13:15:08.790614Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, automatically generated, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1mo" />
    <attribute name="ebas_orig_time_res" value="6d" />
    <attribute name="ebas_station_code" value="DE0001R" />
    <attribute name="ebas_platform_code" value="DE0001S" />
    <attribute name="ebas_station_name" value="Westerland" />
    <attribute name="ebas_station_gaw_id" value="WES" />
    <attribute name="ebas_station_gaw_name" value="Westerland" />
    <attribute name="ebas_station_other_ids" value="DEUB001 (UBA), 10020-0 (WMO)" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="C" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="54.925556" />
    <attribute name="ebas_station_longitude" type="double" value="8.309722" />
    <attribute name="ebas_station_altitude" value="12.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="54.892" />
    <attribute name="ebas_measurement_longitude" type="double" value="8.3246" />
    <attribute name="ebas_measurement_altitude" value="5.0 m" />
    <attribute name="ebas_measurement_height" value="1.75 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benz_a_anthracene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air+pm10" />
    <attribute name="ebas_laboratory_code" value="DE03L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="UBA_We_HVS_0401" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_method_ref" value="DE03L_UBA_La_GMS_0001" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM 10, upward facing" />
    <attribute name="ebas_medium" value="Filter+PUF (Polyurethane foam)" />
    <attribute name="ebas_coating_solution" value="None" />
    <attribute name="ebas_sample_preparation" value="Organic extraction" />
    <attribute name="ebas_blank_correction" value="Not 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="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of laboratory blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Small values reported as half of 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="CAMP, EMEP" />
    <attribute name="ebas_framework_name" value="OSPARCOM - Comprehensive Atmospheric Monitoring Programme, European Monitoring and Evaluation Programme" />
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    <attribute name="ebas_originator" value="&quot;Bieber, Elke, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Penzlin, Anke, anke.penzlin@uba.de, Umweltbundesamt Langen, UBA, Air Monitoring Network, Paul-Ehrlich-Str. 29, , 63225, Langen, Germany&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: CAMP, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="5 one-day samples per month (every 6 days)" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasandparticlebenzanthracenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="gas and particle benzanthracene mass concentration" />
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    <attribute name="actris_temporal_resolution" value="P1M" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_benz_a_anthracene" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzo_a_pyrene" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_benzo_a_pyrene_" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_benzo_a_pyrene_qc v_benzo_a_pyrene_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="2025-10-07T13:15:08.790614Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, automatically generated, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1mo" />
    <attribute name="ebas_orig_time_res" value="6d" />
    <attribute name="ebas_station_code" value="DE0001R" />
    <attribute name="ebas_platform_code" value="DE0001S" />
    <attribute name="ebas_station_name" value="Westerland" />
    <attribute name="ebas_station_gaw_id" value="WES" />
    <attribute name="ebas_station_gaw_name" value="Westerland" />
    <attribute name="ebas_station_other_ids" value="DEUB001 (UBA), 10020-0 (WMO)" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="C" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="54.925556" />
    <attribute name="ebas_station_longitude" type="double" value="8.309722" />
    <attribute name="ebas_station_altitude" value="12.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="54.892" />
    <attribute name="ebas_measurement_longitude" type="double" value="8.3246" />
    <attribute name="ebas_measurement_altitude" value="5.0 m" />
    <attribute name="ebas_measurement_height" value="1.75 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzo_a_pyrene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air+pm10" />
    <attribute name="ebas_laboratory_code" value="DE03L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="UBA_We_HVS_0401" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_method_ref" value="DE03L_UBA_La_GMS_0001" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM 10, upward facing" />
    <attribute name="ebas_medium" value="Filter+PUF (Polyurethane foam)" />
    <attribute name="ebas_coating_solution" value="None" />
    <attribute name="ebas_sample_preparation" value="Organic extraction" />
    <attribute name="ebas_blank_correction" value="Not 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="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of laboratory blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Small values reported as half of 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="CAMP, EMEP" />
    <attribute name="ebas_framework_name" value="OSPARCOM - Comprehensive Atmospheric Monitoring Programme, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="The OSPARCOM Comprehensive Atmospheric Monitoring Programme goal is the assessment of the atmospheric input of selected contaminants to the OSPAR maritime area and regions., 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="Wenche Aas, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Bieber, Elke, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Penzlin, Anke, anke.penzlin@uba.de, Umweltbundesamt Langen, UBA, Air Monitoring Network, Paul-Ehrlich-Str. 29, , 63225, Langen, Germany&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: CAMP, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="5 one-day samples per month (every 6 days)" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasandparticlebenzo-apyrenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="gas and particle benzo(a)pyrene mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasandPM10" />
    <attribute name="actris_matrix_preferred_term" value="gas and PM10" />
    <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/highvolumefiltersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/CAMP, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="CAMP, EMEP" />
    <attribute name="actris_temporal_resolution" value="P1M" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_benzo_a_pyrene" shape="qc_benzo_a_pyrene_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_benzo_a_pyrene" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzo_bjk_fluoranthenes" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_benzo_bjk_fluoranthenes_" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_benzo_bjk_fluoranthenes_qc v_benzo_bjk_fluoranthenes_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="2025-10-07T13:15:08.790614Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, automatically generated, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1mo" />
    <attribute name="ebas_orig_time_res" value="6d" />
    <attribute name="ebas_station_code" value="DE0001R" />
    <attribute name="ebas_platform_code" value="DE0001S" />
    <attribute name="ebas_station_name" value="Westerland" />
    <attribute name="ebas_station_gaw_id" value="WES" />
    <attribute name="ebas_station_gaw_name" value="Westerland" />
    <attribute name="ebas_station_other_ids" value="DEUB001 (UBA), 10020-0 (WMO)" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="C" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="54.925556" />
    <attribute name="ebas_station_longitude" type="double" value="8.309722" />
    <attribute name="ebas_station_altitude" value="12.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="54.892" />
    <attribute name="ebas_measurement_longitude" type="double" value="8.3246" />
    <attribute name="ebas_measurement_altitude" value="5.0 m" />
    <attribute name="ebas_measurement_height" value="1.75 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzo_bjk_fluoranthenes" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air+pm10" />
    <attribute name="ebas_laboratory_code" value="DE03L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="UBA_We_HVS_0401" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_method_ref" value="DE03L_UBA_La_GMS_0001" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM 10, upward facing" />
    <attribute name="ebas_medium" value="Filter+PUF (Polyurethane foam)" />
    <attribute name="ebas_coating_solution" value="None" />
    <attribute name="ebas_sample_preparation" value="Organic extraction" />
    <attribute name="ebas_blank_correction" value="Not 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="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of laboratory blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Small values reported as half of 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="CAMP, EMEP" />
    <attribute name="ebas_framework_name" value="OSPARCOM - Comprehensive Atmospheric Monitoring Programme, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="The OSPARCOM Comprehensive Atmospheric Monitoring Programme goal is the assessment of the atmospheric input of selected contaminants to the OSPAR maritime area and regions., 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="Wenche Aas, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Bieber, Elke, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Penzlin, Anke, anke.penzlin@uba.de, Umweltbundesamt Langen, UBA, Air Monitoring Network, Paul-Ehrlich-Str. 29, , 63225, Langen, Germany&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: CAMP, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="5 one-day samples per month (every 6 days)" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasandparticlebenz-bjkfluoranthenesmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="gas and particle benz(bjk)fluoranthenes mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasandPM10" />
    <attribute name="actris_matrix_preferred_term" value="gas and PM10" />
    <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/highvolumefiltersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/CAMP, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="CAMP, EMEP" />
    <attribute name="actris_temporal_resolution" value="P1M" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_benzo_bjk_fluoranthenes" shape="qc_benzo_bjk_fluoranthenes_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_benzo_bjk_fluoranthenes" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_dibenzo_ah_anthracene" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_dibenzo_ah_anthracene_" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_dibenzo_ah_anthracene_qc v_dibenzo_ah_anthracene_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="2025-10-07T13:15:08.790614Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, automatically generated, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1mo" />
    <attribute name="ebas_orig_time_res" value="6d" />
    <attribute name="ebas_station_code" value="DE0001R" />
    <attribute name="ebas_platform_code" value="DE0001S" />
    <attribute name="ebas_station_name" value="Westerland" />
    <attribute name="ebas_station_gaw_id" value="WES" />
    <attribute name="ebas_station_gaw_name" value="Westerland" />
    <attribute name="ebas_station_other_ids" value="DEUB001 (UBA), 10020-0 (WMO)" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="C" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="54.925556" />
    <attribute name="ebas_station_longitude" type="double" value="8.309722" />
    <attribute name="ebas_station_altitude" value="12.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="54.892" />
    <attribute name="ebas_measurement_longitude" type="double" value="8.3246" />
    <attribute name="ebas_measurement_altitude" value="5.0 m" />
    <attribute name="ebas_measurement_height" value="1.75 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="dibenzo_ah_anthracene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air+pm10" />
    <attribute name="ebas_laboratory_code" value="DE03L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="UBA_We_HVS_0401" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_method_ref" value="DE03L_UBA_La_GMS_0001" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM 10, upward facing" />
    <attribute name="ebas_medium" value="Filter+PUF (Polyurethane foam)" />
    <attribute name="ebas_coating_solution" value="None" />
    <attribute name="ebas_sample_preparation" value="Organic extraction" />
    <attribute name="ebas_blank_correction" value="Not 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="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of laboratory blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Small values reported as half of 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="CAMP, EMEP" />
    <attribute name="ebas_framework_name" value="OSPARCOM - Comprehensive Atmospheric Monitoring Programme, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="The OSPARCOM Comprehensive Atmospheric Monitoring Programme goal is the assessment of the atmospheric input of selected contaminants to the OSPAR maritime area and regions., 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="Wenche Aas, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Bieber, Elke, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Penzlin, Anke, anke.penzlin@uba.de, Umweltbundesamt Langen, UBA, Air Monitoring Network, Paul-Ehrlich-Str. 29, , 63225, Langen, Germany&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: CAMP, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="5 one-day samples per month (every 6 days)" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasandparticledibenz-a-hanthracenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="gas and particle dibenz(a,h)anthracene mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasandPM10" />
    <attribute name="actris_matrix_preferred_term" value="gas and PM10" />
    <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/highvolumefiltersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/CAMP, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="CAMP, EMEP" />
    <attribute name="actris_temporal_resolution" value="P1M" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_dibenzo_ah_anthracene" shape="qc_dibenzo_ah_anthracene_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_dibenzo_ah_anthracene" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_inden_123cd_pyrene" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_inden_123cd_pyrene_" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_inden_123cd_pyrene_qc v_inden_123cd_pyrene_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="2025-10-07T13:15:08.790614Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, automatically generated, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1mo" />
    <attribute name="ebas_orig_time_res" value="6d" />
    <attribute name="ebas_station_code" value="DE0001R" />
    <attribute name="ebas_platform_code" value="DE0001S" />
    <attribute name="ebas_station_name" value="Westerland" />
    <attribute name="ebas_station_gaw_id" value="WES" />
    <attribute name="ebas_station_gaw_name" value="Westerland" />
    <attribute name="ebas_station_other_ids" value="DEUB001 (UBA), 10020-0 (WMO)" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="C" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="54.925556" />
    <attribute name="ebas_station_longitude" type="double" value="8.309722" />
    <attribute name="ebas_station_altitude" value="12.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="54.892" />
    <attribute name="ebas_measurement_longitude" type="double" value="8.3246" />
    <attribute name="ebas_measurement_altitude" value="5.0 m" />
    <attribute name="ebas_measurement_height" value="1.75 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="inden_123cd_pyrene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air+pm10" />
    <attribute name="ebas_laboratory_code" value="DE03L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="UBA_We_HVS_0401" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_method_ref" value="DE03L_UBA_La_GMS_0001" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM 10, upward facing" />
    <attribute name="ebas_medium" value="Filter+PUF (Polyurethane foam)" />
    <attribute name="ebas_coating_solution" value="None" />
    <attribute name="ebas_sample_preparation" value="Organic extraction" />
    <attribute name="ebas_blank_correction" value="Not 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="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of laboratory blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Small values reported as half of 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="CAMP, EMEP" />
    <attribute name="ebas_framework_name" value="OSPARCOM - Comprehensive Atmospheric Monitoring Programme, European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="The OSPARCOM Comprehensive Atmospheric Monitoring Programme goal is the assessment of the atmospheric input of selected contaminants to the OSPAR maritime area and regions., 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="Wenche Aas, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Bieber, Elke, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Penzlin, Anke, anke.penzlin@uba.de, Umweltbundesamt Langen, UBA, Air Monitoring Network, Paul-Ehrlich-Str. 29, , 63225, Langen, Germany&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: CAMP, EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="5 one-day samples per month (every 6 days)" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasandparticleindeno-1-2-3-cdpyrenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="gas and particle indeno(1,2,3-cd)pyrene mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasandPM10" />
    <attribute name="actris_matrix_preferred_term" value="gas and PM10" />
    <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/highvolumefiltersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/CAMP, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="CAMP, EMEP" />
    <attribute name="actris_temporal_resolution" value="P1M" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_inden_123cd_pyrene" shape="qc_inden_123cd_pyrene_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_inden_123cd_pyrene" 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 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <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 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
