<?xml version="1.0" encoding="UTF-8"?>
<netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2" location="Not provided because of security concerns.">
  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="OC/EC at Norunda Stenen" />
  <attribute name="summary" value="OC/EC at Norunda Stenen. These measurements are gathered as a part of the following projects ACTRIS, EMEP, GAW-WDCA and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ['elemental_carbon in pm10 (mass_concentration_of_elemental_carbon_in_pm10_in_air)', 'organic_carbon in pm10 (mass_concentration_of_organic_carbon_in_pm10_in_air)', 'total_carbon in pm10 (mass_concentration_of_total_carbon_in_pm10_in_air)']" />
  <attribute name="keywords" value="&quot;Norunda Stenen&quot; SE0022R elemental_carbon organic_carbon total_carbon pm10 ACTRIS EMEP GAW-WDCA mass_concentration_of_elemental_carbon_in_pm10_in_air mass_concentration_of_organic_carbon_in_pm10_in_air mass_concentration_of_total_carbon_in_pm10_in_air" />
  <attribute name="id" value="V4Q3-XZ8U.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, EMEP, GAW-WDCA" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/V4Q3-XZ8U" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Krejci, R., Hamzavi, Z., ACTRIS, EMEP, GAW-WDCA, 2026, OC/EC at Norunda Stenen, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/V4Q3-XZ8U" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="SE03L &quot;ACES Stockholm University&quot; &quot;Svante Arrhenius Väg 8c, SE-10691 Stockholm, Sweden&quot;" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2026-05-18T17:57:19.330574Z" />
  <attribute name="date_metadata_modified" value="2026-05-18T17:57:19Z" />
  <attribute name="creator_name" value="Radovan Krejci, Zahra Hamzavi" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value=", zahra.hamzavi@aces.su.se" />
  <attribute name="creator_institution" value=", &quot;Department of Environmental Science and Analytical Chemistry, ACES&quot;" />
  <attribute name="contributor_name" value="Zahra Hamzavi" />
  <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="MULTIPOINT Z ((17.5052 60.0858 45), (17.50528 60.0858 45))" />
  <attribute name="geospatial_lat_min" type="double" value="60.0858" />
  <attribute name="geospatial_lat_max" type="double" value="60.0858" />
  <attribute name="geospatial_lon_min" type="double" value="17.5052" />
  <attribute name="geospatial_lon_max" type="double" value="17.50528" />
  <attribute name="geospatial_vertical_min" type="double" value="45.0" />
  <attribute name="geospatial_vertical_max" type="double" value="45.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2018-01-12T23:00:00Z" />
  <attribute name="time_coverage_end" value="2026-01-03T23:00:00Z" />
  <attribute name="time_coverage_duration" value="P0007-11-22T00:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-03T00:00:00" />
  <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="Krejci, R., Hamzavi, Z., ACTRIS, EMEP, GAW-WDCA, 2026, OC/EC at Norunda Stenen, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/V4Q3-XZ8U" />
  <attribute name="ebas_set_type_code" value="TU" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="V4Q3-XZ8U.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/V4Q3-XZ8U" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/V4Q3-XZ8U" />
  <attribute name="ebas_file_creation" value="2026-06-13T21:54:07.943127Z" />
  <attribute name="ebas_export_state" value="2026-05-18T17:57:19.330574Z" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="2018-01-12T23:00:00.000000Z" />
  <attribute name="ebas_revision_date" value="2026-05-18T17:57:19.330574Z" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="initial revision, manually inspected" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="8y" />
  <attribute name="ebas_resolution_code" value="3d" />
  <attribute name="ebas_sample_duration" value="3d" />
  <attribute name="ebas_orig_time_res" value="3d" />
  <attribute name="ebas_station_code" value="SE0022R" />
  <attribute name="ebas_platform_code" value="SE0022S" />
  <attribute name="ebas_station_name" value="Norunda Stenen" />
  <attribute name="ebas_station_land_use" value="Forest" />
  <attribute name="ebas_station_setting" value="Rural" />
  <attribute name="ebas_station_latitude" type="double" value="60.0858" />
  <attribute name="ebas_station_longitude" type="double" value="17.50528" />
  <attribute name="ebas_station_altitude" value="45.0 m" />
  <attribute name="ebas_measurement_latitude" type="double" value="60.0858" />
  <attribute name="ebas_measurement_longitude" type="double" value="17.5052" />
  <attribute name="ebas_measurement_altitude" value="45.0 m" />
  <attribute name="ebas_measurement_height" value="5.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_unit" value="ug C/m3" />
  <attribute name="ebas_matrix" value="pm10" />
  <attribute name="ebas_laboratory_code" value="SE03L" />
  <attribute name="ebas_instrument_type" value="low_vol_sampler" />
  <attribute name="ebas_instrument_name" value="ACES_Leckel_OCEC" />
  <attribute name="ebas_instrument_manufacturer" value="Leckel" />
  <attribute name="ebas_instrument_model" value="SEQ47/50" />
  <attribute name="ebas_instrument_serial_number" value="05/0070" />
  <attribute name="ebas_analytical_laboratory_code" value="SE03L" />
  <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
  <attribute name="ebas_analytical_instrument_name" value="ACES_Sunset_001" />
  <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
  <attribute name="ebas_analytical_instrument_model" value="Carbon Aerosol Analyzer" />
  <attribute name="ebas_analytical_instrument_serial_number" value="446-215" />
  <attribute name="ebas_method_ref" value="SE03L_ACES_Sunset_001" />
  <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014, TEMP=EUSAAR_2" />
  <attribute name="ebas_inlet_type" value="Impactor--direct" />
  <attribute name="ebas_inlet_description" value="Upward facing with rain shield" />
  <attribute name="ebas_flow_rate" value="38.3 l/min" />
  <attribute name="ebas_filter_face_velocity" value="55.5 cm/s" />
  <attribute name="ebas_exposed_filter_area" value="11.5 cm2" />
  <attribute name="ebas_filter_description" value="Munktell Microfibre disc - Grade T293 diam 47 mm" />
  <attribute name="ebas_medium" value="Quartz" />
  <attribute name="ebas_filter_prefiring" value="1073.15 K, 12.0 h" />
  <attribute name="ebas_filter_conditioning" value="None" />
  <attribute name="ebas_sample_preparation" value="None" />
  <attribute name="ebas_blank_correction" value="Not blank corrected" />
  <attribute name="ebas_artifact_correction" value="Positive and negative" />
  <attribute name="ebas_artifact_correction_description" value="Sampling train with denuder to account for positive sampling artifacts of OC and backup filter to account for negative sampling artefacts of OC" />
  <attribute name="ebas_charring_correction" value="By laser transmission" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_volume_std_temperature" value="ambient" />
  <attribute name="ebas_volume_std_pressure" value="ambient" />
  <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
  <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes quantifiable uncertainty. Expanded uncertainty (k=2)" />
  <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
  <attribute name="ebas_zero_negative_values" value="Zero values reported as measured if within detection limit, flagged with 780" />
  <attribute name="ebas_organization" value="SE03L, ACES Stockholm University, , , &quot;Svante Arrhenius Väg 8c, SE-10691 Stockholm, Sweden&quot;, , , , " />
  <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
  <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
  <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
  <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Markus Fiebig" />
  <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, Markus.Fiebig@nilu.no" />
  <attribute name="ebas_originator" value="&quot;Krejci, Radovan, , , , , , , , , &quot;, &quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
  <attribute name="ebas_submitter" value="&quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
  <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="971" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="8" />
  <dimension name="qc_elemental_carbon_amean_flags" length="1" />
  <dimension name="qc_elemental_carbon_uncertainty_flags" length="1" />
  <dimension name="qc_organic_carbon_amean_flags" length="1" />
  <dimension name="qc_organic_carbon_uncertainty_flags" length="1" />
  <dimension name="d_Artifact" length="2" />
  <dimension name="qc_organic_carbon_amean_d_Artifact_flags" length="2" />
  <dimension name="qc_organic_carbon_uncertainty_d_Artifact_flags" length="2" />
  <dimension name="d_Fraction" length="5" />
  <dimension name="qc_organic_carbon_amean_d_Fraction_flags" length="2" />
  <dimension name="qc_total_carbon_amean_flags" length="1" />
  <dimension name="qc_total_carbon_uncertainty_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2018-01-14T11:00:00Z" />
    <attribute name="time_coverage_end" value="2026-01-02T11:00:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="259200.0" />
    <attribute name="time_coverage_duration" value="P0Y0M2910DT0H0M0.000S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-06-26" />
    <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_elemental_carbon_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_elemental_carbon_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug C/m3" />
    <attribute name="ancillary_variables" value="qc_elemental_carbon_amean meta_elemental_carbon_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-05-18T17:57:19.330574Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="3d" />
    <attribute name="ebas_orig_time_res" value="3d" />
    <attribute name="ebas_station_code" value="SE0022R" />
    <attribute name="ebas_platform_code" value="SE0022S" />
    <attribute name="ebas_station_name" value="Norunda Stenen" />
    <attribute name="ebas_station_land_use" value="Forest" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_latitude" type="double" value="60.0858" />
    <attribute name="ebas_station_longitude" type="double" value="17.50528" />
    <attribute name="ebas_station_altitude" value="45.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="60.0858" />
    <attribute name="ebas_measurement_longitude" type="double" value="17.5052" />
    <attribute name="ebas_measurement_altitude" value="45.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="elemental_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="SE03L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="ACES_Leckel_OCEC" />
    <attribute name="ebas_instrument_manufacturer" value="Leckel" />
    <attribute name="ebas_instrument_model" value="SEQ47/50" />
    <attribute name="ebas_instrument_serial_number" value="05/0070" />
    <attribute name="ebas_analytical_laboratory_code" value="SE03L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="ACES_Sunset_001" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="Carbon Aerosol Analyzer" />
    <attribute name="ebas_analytical_instrument_serial_number" value="446-215" />
    <attribute name="ebas_method_ref" value="SE03L_ACES_Sunset_001" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014, TEMP=EUSAAR_2" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="Upward facing with rain shield" />
    <attribute name="ebas_flow_rate" value="38.3 l/min" />
    <attribute name="ebas_filter_face_velocity" value="55.5 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="11.5 cm2" />
    <attribute name="ebas_filter_description" value="Munktell Microfibre disc - Grade T293 diam 47 mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="1073.15 K, 12.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="None" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_artifact_correction" value="Positive and negative" />
    <attribute name="ebas_artifact_correction_description" value="Sampling train with denuder to account for positive sampling artifacts of OC and backup filter to account for negative sampling artefacts of OC" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit" value="0.01 ug C/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes quantifiable uncertainty. Expanded uncertainty (k=2)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values reported as measured if within detection limit, flagged with 780" />
    <attribute name="ebas_organization" value="SE03L, ACES Stockholm University, , , &quot;Svante Arrhenius Väg 8c, SE-10691 Stockholm, Sweden&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Krejci, Radovan, , , , , , , , , &quot;, &quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
    <attribute name="ebas_submitter" value="&quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticleelementalcarbonmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle elemental carbon mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM10" />
    <attribute name="actris_matrix_preferred_term" value="PM10" />
    <attribute name="actris_constraints_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/expressedascarbon, https://vocabulary.actris.nilu.no/actris_vocab/elemental" />
    <attribute name="actris_constraints_preferred_term" value="expressed as carbon, elemental" />
    <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/lowvolumesampler" />
    <attribute name="actris_instrument_type_preferred_term" value="low volume sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCA" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="P3D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_elemental_carbon_amean" shape="qc_elemental_carbon_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_elemental_carbon_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_elemental_carbon_uncertainty" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_elemental_carbon_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug C/m3" />
    <attribute name="ancillary_variables" value="qc_elemental_carbon_uncertainty meta_elemental_carbon_uncertainty" />
    <attribute name="cell_methods" value="time: uncertainty" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-05-18T17:57:19.330574Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="uncertainty" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="3d" />
    <attribute name="ebas_orig_time_res" value="3d" />
    <attribute name="ebas_station_code" value="SE0022R" />
    <attribute name="ebas_platform_code" value="SE0022S" />
    <attribute name="ebas_station_name" value="Norunda Stenen" />
    <attribute name="ebas_station_land_use" value="Forest" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_latitude" type="double" value="60.0858" />
    <attribute name="ebas_station_longitude" type="double" value="17.50528" />
    <attribute name="ebas_station_altitude" value="45.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="60.0858" />
    <attribute name="ebas_measurement_longitude" type="double" value="17.5052" />
    <attribute name="ebas_measurement_altitude" value="45.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="elemental_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="SE03L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="ACES_Leckel_OCEC" />
    <attribute name="ebas_instrument_manufacturer" value="Leckel" />
    <attribute name="ebas_instrument_model" value="SEQ47/50" />
    <attribute name="ebas_instrument_serial_number" value="05/0070" />
    <attribute name="ebas_analytical_laboratory_code" value="SE03L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="ACES_Sunset_001" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="Carbon Aerosol Analyzer" />
    <attribute name="ebas_analytical_instrument_serial_number" value="446-215" />
    <attribute name="ebas_method_ref" value="SE03L_ACES_Sunset_001" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014, TEMP=EUSAAR_2" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="Upward facing with rain shield" />
    <attribute name="ebas_flow_rate" value="38.3 l/min" />
    <attribute name="ebas_filter_face_velocity" value="55.5 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="11.5 cm2" />
    <attribute name="ebas_filter_description" value="Munktell Microfibre disc - Grade T293 diam 47 mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="1073.15 K, 12.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="None" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_artifact_correction" value="Positive and negative" />
    <attribute name="ebas_artifact_correction_description" value="Sampling train with denuder to account for positive sampling artifacts of OC and backup filter to account for negative sampling artefacts of OC" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes quantifiable uncertainty. Expanded uncertainty (k=2)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values reported as measured if within detection limit, flagged with 780" />
    <attribute name="ebas_organization" value="SE03L, ACES Stockholm University, , , &quot;Svante Arrhenius Väg 8c, SE-10691 Stockholm, Sweden&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Krejci, Radovan, , , , , , , , , &quot;, &quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
    <attribute name="ebas_submitter" value="&quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticleelementalcarbonmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle elemental carbon mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM10" />
    <attribute name="actris_matrix_preferred_term" value="PM10" />
    <attribute name="actris_constraints_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/expressedascarbon, https://vocabulary.actris.nilu.no/actris_vocab/elemental" />
    <attribute name="actris_constraints_preferred_term" value="expressed as carbon, elemental" />
    <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/lowvolumesampler" />
    <attribute name="actris_instrument_type_preferred_term" value="low volume sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCA" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="P3D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_elemental_carbon_uncertainty" shape="qc_elemental_carbon_uncertainty_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_elemental_carbon_uncertainty" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_organic_carbon_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_organic_carbon_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug C/m3" />
    <attribute name="ancillary_variables" value="qc_organic_carbon_amean meta_organic_carbon_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-05-18T17:57:19.330574Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="3d" />
    <attribute name="ebas_orig_time_res" value="3d" />
    <attribute name="ebas_station_code" value="SE0022R" />
    <attribute name="ebas_platform_code" value="SE0022S" />
    <attribute name="ebas_station_name" value="Norunda Stenen" />
    <attribute name="ebas_station_land_use" value="Forest" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_latitude" type="double" value="60.0858" />
    <attribute name="ebas_station_longitude" type="double" value="17.50528" />
    <attribute name="ebas_station_altitude" value="45.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="60.0858" />
    <attribute name="ebas_measurement_longitude" type="double" value="17.5052" />
    <attribute name="ebas_measurement_altitude" value="45.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="organic_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="SE03L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="ACES_Leckel_OCEC" />
    <attribute name="ebas_instrument_manufacturer" value="Leckel" />
    <attribute name="ebas_instrument_model" value="SEQ47/50" />
    <attribute name="ebas_instrument_serial_number" value="05/0070" />
    <attribute name="ebas_analytical_laboratory_code" value="SE03L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="ACES_Sunset_001" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="Carbon Aerosol Analyzer" />
    <attribute name="ebas_analytical_instrument_serial_number" value="446-215" />
    <attribute name="ebas_method_ref" value="SE03L_ACES_Sunset_001" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014, TEMP=EUSAAR_2" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="Upward facing with rain shield" />
    <attribute name="ebas_flow_rate" value="38.3 l/min" />
    <attribute name="ebas_filter_face_velocity" value="55.5 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="11.5 cm2" />
    <attribute name="ebas_filter_description" value="Munktell Microfibre disc - Grade T293 diam 47 mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="1073.15 K, 12.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="None" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_artifact_correction" value="Positive and negative" />
    <attribute name="ebas_artifact_correction_description" value="Sampling train with denuder to account for positive sampling artifacts of OC and backup filter to account for negative sampling artefacts of OC" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit" value="0.24 ug C/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes quantifiable uncertainty. Expanded uncertainty (k=2)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values reported as measured if within detection limit, flagged with 780" />
    <attribute name="ebas_organization" value="SE03L, ACES Stockholm University, , , &quot;Svante Arrhenius Väg 8c, SE-10691 Stockholm, Sweden&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Krejci, Radovan, , , , , , , , , &quot;, &quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
    <attribute name="ebas_submitter" value="&quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticleorganiccarbonmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle organic carbon mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM10" />
    <attribute name="actris_matrix_preferred_term" value="PM10" />
    <attribute name="actris_constraints_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/expressedascarbon" />
    <attribute name="actris_constraints_preferred_term" value="expressed as carbon" />
    <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/lowvolumesampler" />
    <attribute name="actris_instrument_type_preferred_term" value="low volume sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCA" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="P3D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_organic_carbon_amean" shape="qc_organic_carbon_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_organic_carbon_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_organic_carbon_uncertainty" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_organic_carbon_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug C/m3" />
    <attribute name="ancillary_variables" value="qc_organic_carbon_uncertainty meta_organic_carbon_uncertainty" />
    <attribute name="cell_methods" value="time: uncertainty" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-05-18T17:57:19.330574Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="uncertainty" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="3d" />
    <attribute name="ebas_orig_time_res" value="3d" />
    <attribute name="ebas_station_code" value="SE0022R" />
    <attribute name="ebas_platform_code" value="SE0022S" />
    <attribute name="ebas_station_name" value="Norunda Stenen" />
    <attribute name="ebas_station_land_use" value="Forest" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_latitude" type="double" value="60.0858" />
    <attribute name="ebas_station_longitude" type="double" value="17.50528" />
    <attribute name="ebas_station_altitude" value="45.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="60.0858" />
    <attribute name="ebas_measurement_longitude" type="double" value="17.5052" />
    <attribute name="ebas_measurement_altitude" value="45.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="organic_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="SE03L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="ACES_Leckel_OCEC" />
    <attribute name="ebas_instrument_manufacturer" value="Leckel" />
    <attribute name="ebas_instrument_model" value="SEQ47/50" />
    <attribute name="ebas_instrument_serial_number" value="05/0070" />
    <attribute name="ebas_analytical_laboratory_code" value="SE03L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="ACES_Sunset_001" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="Carbon Aerosol Analyzer" />
    <attribute name="ebas_analytical_instrument_serial_number" value="446-215" />
    <attribute name="ebas_method_ref" value="SE03L_ACES_Sunset_001" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014, TEMP=EUSAAR_2" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="Upward facing with rain shield" />
    <attribute name="ebas_flow_rate" value="38.3 l/min" />
    <attribute name="ebas_filter_face_velocity" value="55.5 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="11.5 cm2" />
    <attribute name="ebas_filter_description" value="Munktell Microfibre disc - Grade T293 diam 47 mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="1073.15 K, 12.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="None" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_artifact_correction" value="Positive and negative" />
    <attribute name="ebas_artifact_correction_description" value="Sampling train with denuder to account for positive sampling artifacts of OC and backup filter to account for negative sampling artefacts of OC" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes quantifiable uncertainty. Expanded uncertainty (k=2)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values reported as measured if within detection limit, flagged with 780" />
    <attribute name="ebas_organization" value="SE03L, ACES Stockholm University, , , &quot;Svante Arrhenius Väg 8c, SE-10691 Stockholm, Sweden&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Krejci, Radovan, , , , , , , , , &quot;, &quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
    <attribute name="ebas_submitter" value="&quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticleorganiccarbonmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle organic carbon mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM10" />
    <attribute name="actris_matrix_preferred_term" value="PM10" />
    <attribute name="actris_constraints_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/expressedascarbon" />
    <attribute name="actris_constraints_preferred_term" value="expressed as carbon" />
    <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/lowvolumesampler" />
    <attribute name="actris_instrument_type_preferred_term" value="low volume sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCA" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="P3D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_organic_carbon_uncertainty" shape="qc_organic_carbon_uncertainty_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_organic_carbon_uncertainty" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_organic_carbon_amean_d_Artifact" shape="d_Artifact time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_organic_carbon_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug C/m3" />
    <attribute name="ancillary_variables" value="qc_organic_carbon_amean_d_Artifact meta_organic_carbon_amean_d_Artifact" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-05-18T17:57:19.330574Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="3d" />
    <attribute name="ebas_orig_time_res" value="3d" />
    <attribute name="ebas_station_code" value="SE0022R" />
    <attribute name="ebas_platform_code" value="SE0022S" />
    <attribute name="ebas_station_name" value="Norunda Stenen" />
    <attribute name="ebas_station_land_use" value="Forest" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_latitude" type="double" value="60.0858" />
    <attribute name="ebas_station_longitude" type="double" value="17.50528" />
    <attribute name="ebas_station_altitude" value="45.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="60.0858" />
    <attribute name="ebas_measurement_longitude" type="double" value="17.5052" />
    <attribute name="ebas_measurement_altitude" value="45.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="organic_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="SE03L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="ACES_Leckel_OCEC" />
    <attribute name="ebas_instrument_manufacturer" value="Leckel" />
    <attribute name="ebas_instrument_model" value="SEQ47/50" />
    <attribute name="ebas_instrument_serial_number" value="05/0070" />
    <attribute name="ebas_analytical_laboratory_code" value="SE03L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="ACES_Sunset_001" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="Carbon Aerosol Analyzer" />
    <attribute name="ebas_analytical_instrument_serial_number" value="446-215" />
    <attribute name="ebas_method_ref" value="SE03L_ACES_Sunset_001" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014, TEMP=EUSAAR_2" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="Upward facing with rain shield" />
    <attribute name="ebas_flow_rate" value="38.3 l/min" />
    <attribute name="ebas_filter_face_velocity" value="55.5 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="11.5 cm2" />
    <attribute name="ebas_filter_description" value="Munktell Microfibre disc - Grade T293 diam 47 mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="1073.15 K, 12.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="None" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_artifact_correction" value="Positive and negative" />
    <attribute name="ebas_artifact_correction_description" value="Sampling train with denuder to account for positive sampling artifacts of OC and backup filter to account for negative sampling artefacts of OC" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes quantifiable uncertainty. Expanded uncertainty (k=2)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values reported as measured if within detection limit, flagged with 780" />
    <attribute name="ebas_organization" value="SE03L, ACES Stockholm University, , , &quot;Svante Arrhenius Väg 8c, SE-10691 Stockholm, Sweden&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Krejci, Radovan, , , , , , , , , &quot;, &quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
    <attribute name="ebas_submitter" value="&quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticleorganiccarbonmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle organic carbon mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM10" />
    <attribute name="actris_matrix_preferred_term" value="PM10" />
    <attribute name="actris_constraints_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/expressedascarbon" />
    <attribute name="actris_constraints_preferred_term" value="expressed as carbon" />
    <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/lowvolumesampler" />
    <attribute name="actris_instrument_type_preferred_term" value="low volume sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCA" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="P3D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_organic_carbon_amean_d_Artifact" shape="d_Artifact qc_organic_carbon_amean_d_Artifact_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_organic_carbon_amean_d_Artifact" shape="d_Artifact metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_organic_carbon_uncertainty_d_Artifact" shape="d_Artifact time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_organic_carbon_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug C/m3" />
    <attribute name="ancillary_variables" value="qc_organic_carbon_uncertainty_d_Artifact meta_organic_carbon_uncertainty_d_Artifact" />
    <attribute name="cell_methods" value="time: uncertainty" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-05-18T17:57:19.330574Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="uncertainty" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="3d" />
    <attribute name="ebas_orig_time_res" value="3d" />
    <attribute name="ebas_station_code" value="SE0022R" />
    <attribute name="ebas_platform_code" value="SE0022S" />
    <attribute name="ebas_station_name" value="Norunda Stenen" />
    <attribute name="ebas_station_land_use" value="Forest" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_latitude" type="double" value="60.0858" />
    <attribute name="ebas_station_longitude" type="double" value="17.50528" />
    <attribute name="ebas_station_altitude" value="45.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="60.0858" />
    <attribute name="ebas_measurement_longitude" type="double" value="17.5052" />
    <attribute name="ebas_measurement_altitude" value="45.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="organic_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="SE03L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="ACES_Leckel_OCEC" />
    <attribute name="ebas_instrument_manufacturer" value="Leckel" />
    <attribute name="ebas_instrument_model" value="SEQ47/50" />
    <attribute name="ebas_instrument_serial_number" value="05/0070" />
    <attribute name="ebas_analytical_laboratory_code" value="SE03L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="ACES_Sunset_001" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="Carbon Aerosol Analyzer" />
    <attribute name="ebas_analytical_instrument_serial_number" value="446-215" />
    <attribute name="ebas_method_ref" value="SE03L_ACES_Sunset_001" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014, TEMP=EUSAAR_2" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="Upward facing with rain shield" />
    <attribute name="ebas_flow_rate" value="38.3 l/min" />
    <attribute name="ebas_filter_face_velocity" value="55.5 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="11.5 cm2" />
    <attribute name="ebas_filter_description" value="Munktell Microfibre disc - Grade T293 diam 47 mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="1073.15 K, 12.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="None" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_artifact_correction" value="Positive and negative" />
    <attribute name="ebas_artifact_correction_description" value="Sampling train with denuder to account for positive sampling artifacts of OC and backup filter to account for negative sampling artefacts of OC" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes quantifiable uncertainty. Expanded uncertainty (k=2)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values reported as measured if within detection limit, flagged with 780" />
    <attribute name="ebas_organization" value="SE03L, ACES Stockholm University, , , &quot;Svante Arrhenius Väg 8c, SE-10691 Stockholm, Sweden&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Krejci, Radovan, , , , , , , , , &quot;, &quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
    <attribute name="ebas_submitter" value="&quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticleorganiccarbonmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle organic carbon mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM10" />
    <attribute name="actris_matrix_preferred_term" value="PM10" />
    <attribute name="actris_constraints_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/expressedascarbon" />
    <attribute name="actris_constraints_preferred_term" value="expressed as carbon" />
    <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/lowvolumesampler" />
    <attribute name="actris_instrument_type_preferred_term" value="low volume sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCA" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="P3D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_organic_carbon_uncertainty_d_Artifact" shape="d_Artifact qc_organic_carbon_uncertainty_d_Artifact_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_organic_carbon_uncertainty_d_Artifact" shape="d_Artifact metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_organic_carbon_amean_d_Fraction" shape="d_Fraction time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_organic_carbon_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug C/m3" />
    <attribute name="ancillary_variables" value="qc_organic_carbon_amean_d_Fraction meta_organic_carbon_amean_d_Fraction" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-05-18T17:57:19.330574Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="3d" />
    <attribute name="ebas_orig_time_res" value="3d" />
    <attribute name="ebas_station_code" value="SE0022R" />
    <attribute name="ebas_platform_code" value="SE0022S" />
    <attribute name="ebas_station_name" value="Norunda Stenen" />
    <attribute name="ebas_station_land_use" value="Forest" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_latitude" type="double" value="60.0858" />
    <attribute name="ebas_station_longitude" type="double" value="17.50528" />
    <attribute name="ebas_station_altitude" value="45.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="60.0858" />
    <attribute name="ebas_measurement_longitude" type="double" value="17.5052" />
    <attribute name="ebas_measurement_altitude" value="45.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="organic_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="SE03L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="ACES_Leckel_OCEC" />
    <attribute name="ebas_instrument_manufacturer" value="Leckel" />
    <attribute name="ebas_instrument_model" value="SEQ47/50" />
    <attribute name="ebas_instrument_serial_number" value="05/0070" />
    <attribute name="ebas_analytical_laboratory_code" value="SE03L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="ACES_Sunset_001" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="Carbon Aerosol Analyzer" />
    <attribute name="ebas_analytical_instrument_serial_number" value="446-215" />
    <attribute name="ebas_method_ref" value="SE03L_ACES_Sunset_001" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014, TEMP=EUSAAR_2" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="Upward facing with rain shield" />
    <attribute name="ebas_flow_rate" value="38.3 l/min" />
    <attribute name="ebas_filter_face_velocity" value="55.5 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="11.5 cm2" />
    <attribute name="ebas_filter_description" value="Munktell Microfibre disc - Grade T293 diam 47 mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="1073.15 K, 12.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="None" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_artifact_correction" value="Positive and negative" />
    <attribute name="ebas_artifact_correction_description" value="Sampling train with denuder to account for positive sampling artifacts of OC and backup filter to account for negative sampling artefacts of OC" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes quantifiable uncertainty. Expanded uncertainty (k=2)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values reported as measured if within detection limit, flagged with 780" />
    <attribute name="ebas_organization" value="SE03L, ACES Stockholm University, , , &quot;Svante Arrhenius Väg 8c, SE-10691 Stockholm, Sweden&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Krejci, Radovan, , , , , , , , , &quot;, &quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
    <attribute name="ebas_submitter" value="&quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticleorganiccarbonmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle organic carbon mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM10" />
    <attribute name="actris_matrix_preferred_term" value="PM10" />
    <attribute name="actris_constraints_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/expressedascarbon" />
    <attribute name="actris_constraints_preferred_term" value="expressed as carbon" />
    <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/lowvolumesampler" />
    <attribute name="actris_instrument_type_preferred_term" value="low volume sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCA" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="P3D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_organic_carbon_amean_d_Fraction" shape="d_Fraction qc_organic_carbon_amean_d_Fraction_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_organic_carbon_amean_d_Fraction" shape="d_Fraction metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_total_carbon_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_total_carbon_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug C/m3" />
    <attribute name="ancillary_variables" value="qc_total_carbon_amean meta_total_carbon_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-05-18T17:57:19.330574Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="3d" />
    <attribute name="ebas_orig_time_res" value="3d" />
    <attribute name="ebas_station_code" value="SE0022R" />
    <attribute name="ebas_platform_code" value="SE0022S" />
    <attribute name="ebas_station_name" value="Norunda Stenen" />
    <attribute name="ebas_station_land_use" value="Forest" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_latitude" type="double" value="60.0858" />
    <attribute name="ebas_station_longitude" type="double" value="17.50528" />
    <attribute name="ebas_station_altitude" value="45.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="60.0858" />
    <attribute name="ebas_measurement_longitude" type="double" value="17.5052" />
    <attribute name="ebas_measurement_altitude" value="45.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="total_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="SE03L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="ACES_Leckel_OCEC" />
    <attribute name="ebas_instrument_manufacturer" value="Leckel" />
    <attribute name="ebas_instrument_model" value="SEQ47/50" />
    <attribute name="ebas_instrument_serial_number" value="05/0070" />
    <attribute name="ebas_analytical_laboratory_code" value="SE03L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="ACES_Sunset_001" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="Carbon Aerosol Analyzer" />
    <attribute name="ebas_analytical_instrument_serial_number" value="446-215" />
    <attribute name="ebas_method_ref" value="SE03L_ACES_Sunset_001" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014, TEMP=EUSAAR_2" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="Upward facing with rain shield" />
    <attribute name="ebas_flow_rate" value="38.3 l/min" />
    <attribute name="ebas_filter_face_velocity" value="55.5 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="11.5 cm2" />
    <attribute name="ebas_filter_description" value="Munktell Microfibre disc - Grade T293 diam 47 mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="1073.15 K, 12.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="None" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_artifact_correction" value="Positive and negative" />
    <attribute name="ebas_artifact_correction_description" value="Sampling train with denuder to account for positive sampling artifacts of OC and backup filter to account for negative sampling artefacts of OC" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit" value="0.24 ug C/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes quantifiable uncertainty. Expanded uncertainty (k=2)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values reported as measured if within detection limit, flagged with 780" />
    <attribute name="ebas_organization" value="SE03L, ACES Stockholm University, , , &quot;Svante Arrhenius Väg 8c, SE-10691 Stockholm, Sweden&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Krejci, Radovan, , , , , , , , , &quot;, &quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
    <attribute name="ebas_submitter" value="&quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticletotalcarbonmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle total carbon mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM10" />
    <attribute name="actris_matrix_preferred_term" value="PM10" />
    <attribute name="actris_constraints_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/expressedascarbon" />
    <attribute name="actris_constraints_preferred_term" value="expressed as carbon" />
    <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/lowvolumesampler" />
    <attribute name="actris_instrument_type_preferred_term" value="low volume sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCA" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="P3D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_total_carbon_amean" shape="qc_total_carbon_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_total_carbon_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_total_carbon_uncertainty" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_total_carbon_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug C/m3" />
    <attribute name="ancillary_variables" value="qc_total_carbon_uncertainty meta_total_carbon_uncertainty" />
    <attribute name="cell_methods" value="time: uncertainty" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-05-18T17:57:19.330574Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="uncertainty" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="3d" />
    <attribute name="ebas_orig_time_res" value="3d" />
    <attribute name="ebas_station_code" value="SE0022R" />
    <attribute name="ebas_platform_code" value="SE0022S" />
    <attribute name="ebas_station_name" value="Norunda Stenen" />
    <attribute name="ebas_station_land_use" value="Forest" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_latitude" type="double" value="60.0858" />
    <attribute name="ebas_station_longitude" type="double" value="17.50528" />
    <attribute name="ebas_station_altitude" value="45.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="60.0858" />
    <attribute name="ebas_measurement_longitude" type="double" value="17.5052" />
    <attribute name="ebas_measurement_altitude" value="45.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="total_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="SE03L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="ACES_Leckel_OCEC" />
    <attribute name="ebas_instrument_manufacturer" value="Leckel" />
    <attribute name="ebas_instrument_model" value="SEQ47/50" />
    <attribute name="ebas_instrument_serial_number" value="05/0070" />
    <attribute name="ebas_analytical_laboratory_code" value="SE03L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="ACES_Sunset_001" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="Carbon Aerosol Analyzer" />
    <attribute name="ebas_analytical_instrument_serial_number" value="446-215" />
    <attribute name="ebas_method_ref" value="SE03L_ACES_Sunset_001" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014, TEMP=EUSAAR_2" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="Upward facing with rain shield" />
    <attribute name="ebas_flow_rate" value="38.3 l/min" />
    <attribute name="ebas_filter_face_velocity" value="55.5 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="11.5 cm2" />
    <attribute name="ebas_filter_description" value="Munktell Microfibre disc - Grade T293 diam 47 mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="1073.15 K, 12.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="None" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_artifact_correction" value="Positive and negative" />
    <attribute name="ebas_artifact_correction_description" value="Sampling train with denuder to account for positive sampling artifacts of OC and backup filter to account for negative sampling artefacts of OC" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty includes quantifiable uncertainty. Expanded uncertainty (k=2)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values reported as measured if within detection limit, flagged with 780" />
    <attribute name="ebas_organization" value="SE03L, ACES Stockholm University, , , &quot;Svante Arrhenius Väg 8c, SE-10691 Stockholm, Sweden&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Krejci, Radovan, , , , , , , , , &quot;, &quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
    <attribute name="ebas_submitter" value="&quot;Hamzavi, Zahra, zahra.hamzavi@aces.su.se, Department of Environmental Science and Analytical Chemistry, ACES, , Stockholm University, , SE-10691, Stockholm, Sweden&quot;" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticletotalcarbonmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle total carbon mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM10" />
    <attribute name="actris_matrix_preferred_term" value="PM10" />
    <attribute name="actris_constraints_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/expressedascarbon" />
    <attribute name="actris_constraints_preferred_term" value="expressed as carbon" />
    <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/lowvolumesampler" />
    <attribute name="actris_instrument_type_preferred_term" value="low volume sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCA" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="P3D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_total_carbon_uncertainty" shape="qc_total_carbon_uncertainty_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_total_carbon_uncertainty" 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>
  <variable name="d_Artifact" shape="d_Artifact" type="String" />
  <variable name="d_Fraction" shape="d_Fraction" type="String" />
</netcdf>
