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  <attribute name="title" value="OC/EC at Observatoire Perenne de l'Environnement" />
  <attribute name="summary" value="OC/EC at Observatoire Perenne de l'Environnement. 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)']" />
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  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/Z8NU-TSRB" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Jaffrezo, J., Conil, S., Elazzouzi, R., ACTRIS, EMEP, GAW-WDCA, 2026, OC/EC at Observatoire Perenne de l'Environnement, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/Z8NU-TSRB" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="FR11L &quot;Agence nationale pour la gestion des déchets radioactifs&quot; Andra &quot;1/7 rue Jean Monnet&quot; 92298 &quot;CHATENAY-MALABRY Cedex&quot; France" />
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  <attribute name="date_created" value="2026-06-02T20:09:09.175292Z" />
  <attribute name="date_metadata_modified" value="2026-05-29T13:06:05Z" />
  <attribute name="creator_name" value="Jean Luc Jaffrezo, Sebastien Conil, Rhabira Elazzouzi" />
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  <attribute name="creator_email" value="Jean-Luc.Jaffrezo@univ-grenoble-alpes.fr, Sebastien.Conil@andra.fr, " />
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  <attribute name="contributor_name" value="Nicolas Pascal" />
  <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" />
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  <attribute name="geospatial_bounds" value="MULTIPOINT Z ((5.505 48.562 392), (5.5055555555555555 48.562222222222225 392))" />
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  <attribute name="time_coverage_start" value="2021-01-03T09:00:00Z" />
  <attribute name="time_coverage_end" value="2025-12-27T00:00:00Z" />
  <attribute name="time_coverage_duration" value="P0004-11-23T15:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-06T00:00:00" />
  <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="Jaffrezo, J., Conil, S., Elazzouzi, R., ACTRIS, EMEP, GAW-WDCA, 2026, OC/EC at Observatoire Perenne de l'Environnement, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/Z8NU-TSRB" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
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  <attribute name="ebas_file_creation" value="2026-06-14T00:28:54.358309Z" />
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  <attribute name="ebas_startdate" value="2021-01-03T09:00:00.000000Z" />
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  <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="5y" />
  <attribute name="ebas_resolution_code" value="6d" />
  <attribute name="ebas_sample_duration" value="1d" />
  <attribute name="ebas_orig_time_res" value="1d" />
  <attribute name="ebas_station_code" value="FR0022R" />
  <attribute name="ebas_platform_code" value="FR0022S" />
  <attribute name="ebas_station_name" value="Observatoire Perenne de l'Environnement" />
  <attribute name="ebas_station_gaw_id" value="OPE" />
  <attribute name="ebas_station_land_use" value="Agricultural" />
  <attribute name="ebas_station_setting" value="Rural" />
  <attribute name="ebas_station_wmo_region" type="long" value="6" />
  <attribute name="ebas_station_latitude" type="double" value="48.562222222222225" />
  <attribute name="ebas_station_longitude" type="double" value="5.5055555555555555" />
  <attribute name="ebas_station_altitude" value="392.0 m" />
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  <attribute name="ebas_measurement_longitude" type="double" value="5.505" />
  <attribute name="ebas_measurement_altitude" value="392.0 m" />
  <attribute name="ebas_measurement_height" value="4.0 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="FR11L" />
  <attribute name="ebas_instrument_type" value="high_vol_sampler" />
  <attribute name="ebas_instrument_name" value="DIGITEL_DHA-80_OPE_pm10_ambient" />
  <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
  <attribute name="ebas_instrument_model" value="DHA-80" />
  <attribute name="ebas_instrument_serial_number" value="5020" />
  <attribute name="ebas_analytical_laboratory_code" value="FR11L" />
  <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
  <attribute name="ebas_analytical_instrument_name" value="SUNSET_French_1" />
  <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
  <attribute name="ebas_analytical_instrument_model" value="OCEC Lab Instrument Model 5" />
  <attribute name="ebas_analytical_instrument_serial_number" value="150A" />
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  <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="PM10 size cut-off" />
  <attribute name="ebas_flow_rate" value="493.5 l/min" />
  <attribute name="ebas_filter_face_velocity" value="53.43 cm/s" />
  <attribute name="ebas_exposed_filter_area" value="153.94 cm2" />
  <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 150mm" />
  <attribute name="ebas_medium" value="Quartz" />
  <attribute name="ebas_filter_prefiring" value="773.15 K, 8.0 h" />
  <attribute name="ebas_filter_conditioning" value="None" />
  <attribute name="ebas_sample_preparation" value="None" />
  <attribute name="ebas_blank_correction" value="Blank corrected" />
  <attribute name="ebas_artifact_correction" value="None" />
  <attribute name="ebas_charring_correction" value="By laser transmission" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head" />
  <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 for TC and OC, limits given by manufacturer for EC" />
  <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty as reported by the Sunset instrument" />
  <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 147" />
  <attribute name="ebas_organization" value="FR11L, Agence nationale pour la gestion des déchets radioactifs, Andra, , 1/7 rue Jean Monnet, , 92298, CHATENAY-MALABRY Cedex, France" />
  <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;Jaffrezo, Jean Luc, Jean-Luc.Jaffrezo@univ-grenoble-alpes.fr, Laboratoire de Glaciologie et Geophysique de lEnvironnement, LGGE, Laboratoire daerologie, Chimie Atmospherique Neige et Glace, 54 rue Moliere BP 96, F-38402, Saint-Martin dHeres cedex, France&quot;, &quot;Conil, Sebastien, Sebastien.Conil@andra.fr, Observatoire Perenne de l'Environnement, ANDRA/OPE, Centre de Meuse/Haute-Marne, RD960, CP9, 55290, Bure, France&quot;, &quot;Elazzouzi, Rhabira, , , , , , , , , &quot;" />
  <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
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  <attribute name="ebas_comment" value="after prefiring, sample are packed in aluminum foil and sealed in plastic sheath before analysis" />
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  <attribute name="geospatial_lat_units" value="degrees_north" />
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  <attribute name="creator_url" value="ebas.nilu.no" />
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  <dimension name="time" length="299" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="5" />
  <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_Fraction" length="5" />
  <dimension name="qc_organic_carbon_amean_d_Fraction_flags" length="1" />
  <dimension name="qc_total_carbon_amean_flags" length="1" />
  <dimension name="qc_total_carbon_uncertainty_flags" length="1" />
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    <attribute name="time_coverage_start" value="2021-01-03T21:00:00Z" />
    <attribute name="time_coverage_end" value="2025-12-26T12:00:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="526989.0" />
    <attribute name="time_coverage_duration" value="P0Y0M1817DT15H0M0.000S" />
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    <attribute name="metadata_creation" value="2026-06-25" />
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    <attribute name="long_name" value="time bounds for measurement" />
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    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
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    <attribute name="ebas_exposed_filter_area" value="153.94 cm2" />
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    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="773.15 K, 8.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="None" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_artifact_correction" value="None" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head" />
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    <attribute name="ebas_volume_std_pressure" value="ambient" />
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    <attribute name="ebas_zero_negative_values" value="Zero values reported as measured if within detection limit, flagged with 147" />
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    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, Markus.Fiebig@nilu.no" />
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    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCA. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="after prefiring, sample are packed in aluminum foil and sealed in plastic sheath before analysis" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/highvolumefiltersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
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    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_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="2026-05-29T13:06:05.000000Z" />
    <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="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="FR0022R" />
    <attribute name="ebas_platform_code" value="FR0022S" />
    <attribute name="ebas_station_name" value="Observatoire Perenne de l'Environnement" />
    <attribute name="ebas_station_gaw_id" value="OPE" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" type="double" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.562" />
    <attribute name="ebas_measurement_longitude" type="double" value="5.505" />
    <attribute name="ebas_measurement_altitude" value="392.0 m" />
    <attribute name="ebas_measurement_height" value="4.0 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="FR11L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="DIGITEL_DHA-80_OPE_pm10_ambient" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_instrument_serial_number" value="5020" />
    <attribute name="ebas_analytical_laboratory_code" value="FR11L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="SUNSET_French_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="OCEC Lab Instrument Model 5" />
    <attribute name="ebas_analytical_instrument_serial_number" value="150A" />
    <attribute name="ebas_method_ref" value="FR11L_high_vol_sampler_DIGITEL_DHA-80" />
    <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="PM10 size cut-off" />
    <attribute name="ebas_flow_rate" value="493.5 l/min" />
    <attribute name="ebas_filter_face_velocity" value="53.43 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="153.94 cm2" />
    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 150mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="773.15 K, 8.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="None" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_artifact_correction" value="None" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head" />
    <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 for TC and OC, limits given by manufacturer for EC" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty as reported by the Sunset instrument" />
    <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 147" />
    <attribute name="ebas_organization" value="FR11L, Agence nationale pour la gestion des déchets radioactifs, Andra, , 1/7 rue Jean Monnet, , 92298, CHATENAY-MALABRY Cedex, France" />
    <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;Jaffrezo, Jean Luc, Jean-Luc.Jaffrezo@univ-grenoble-alpes.fr, Laboratoire de Glaciologie et Geophysique de lEnvironnement, LGGE, Laboratoire daerologie, Chimie Atmospherique Neige et Glace, 54 rue Moliere BP 96, F-38402, Saint-Martin dHeres cedex, France&quot;, &quot;Conil, Sebastien, Sebastien.Conil@andra.fr, Observatoire Perenne de l'Environnement, ANDRA/OPE, Centre de Meuse/Haute-Marne, RD960, CP9, 55290, Bure, France&quot;, &quot;Elazzouzi, Rhabira, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCA. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="after prefiring, sample are packed in aluminum foil and sealed in plastic sheath before analysis" />
    <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/highvolumefiltersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/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="P6D" />
    <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="2026-05-29T13:06:05.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="FR0022R" />
    <attribute name="ebas_platform_code" value="FR0022S" />
    <attribute name="ebas_station_name" value="Observatoire Perenne de l'Environnement" />
    <attribute name="ebas_station_gaw_id" value="OPE" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" type="double" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.562" />
    <attribute name="ebas_measurement_longitude" type="double" value="5.505" />
    <attribute name="ebas_measurement_altitude" value="392.0 m" />
    <attribute name="ebas_measurement_height" value="4.0 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="FR11L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="DIGITEL_DHA-80_OPE_pm10_ambient" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_instrument_serial_number" value="5020" />
    <attribute name="ebas_analytical_laboratory_code" value="FR11L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="SUNSET_French_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="OCEC Lab Instrument Model 5" />
    <attribute name="ebas_analytical_instrument_serial_number" value="150A" />
    <attribute name="ebas_method_ref" value="FR11L_high_vol_sampler_DIGITEL_DHA-80" />
    <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="PM10 size cut-off" />
    <attribute name="ebas_flow_rate" value="493.5 l/min" />
    <attribute name="ebas_filter_face_velocity" value="53.43 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="153.94 cm2" />
    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 150mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="773.15 K, 8.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="None" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_artifact_correction" value="None" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head" />
    <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 for TC and OC, limits given by manufacturer for EC" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty as reported by the Sunset instrument" />
    <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 147" />
    <attribute name="ebas_organization" value="FR11L, Agence nationale pour la gestion des déchets radioactifs, Andra, , 1/7 rue Jean Monnet, , 92298, CHATENAY-MALABRY Cedex, France" />
    <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;Jaffrezo, Jean Luc, Jean-Luc.Jaffrezo@univ-grenoble-alpes.fr, Laboratoire de Glaciologie et Geophysique de lEnvironnement, LGGE, Laboratoire daerologie, Chimie Atmospherique Neige et Glace, 54 rue Moliere BP 96, F-38402, Saint-Martin dHeres cedex, France&quot;, &quot;Conil, Sebastien, Sebastien.Conil@andra.fr, Observatoire Perenne de l'Environnement, ANDRA/OPE, Centre de Meuse/Haute-Marne, RD960, CP9, 55290, Bure, France&quot;, &quot;Elazzouzi, Rhabira, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCA. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="after prefiring, sample are packed in aluminum foil and sealed in plastic sheath before analysis" />
    <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/highvolumefiltersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/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="P6D" />
    <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="2026-05-29T13:06:05.000000Z" />
    <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="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="FR0022R" />
    <attribute name="ebas_platform_code" value="FR0022S" />
    <attribute name="ebas_station_name" value="Observatoire Perenne de l'Environnement" />
    <attribute name="ebas_station_gaw_id" value="OPE" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" type="double" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.562" />
    <attribute name="ebas_measurement_longitude" type="double" value="5.505" />
    <attribute name="ebas_measurement_altitude" value="392.0 m" />
    <attribute name="ebas_measurement_height" value="4.0 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="FR11L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="DIGITEL_DHA-80_OPE_pm10_ambient" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_instrument_serial_number" value="5020" />
    <attribute name="ebas_analytical_laboratory_code" value="FR11L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="SUNSET_French_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="OCEC Lab Instrument Model 5" />
    <attribute name="ebas_analytical_instrument_serial_number" value="150A" />
    <attribute name="ebas_method_ref" value="FR11L_high_vol_sampler_DIGITEL_DHA-80" />
    <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="PM10 size cut-off" />
    <attribute name="ebas_flow_rate" value="493.5 l/min" />
    <attribute name="ebas_filter_face_velocity" value="53.43 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="153.94 cm2" />
    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 150mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="773.15 K, 8.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="None" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_artifact_correction" value="None" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head" />
    <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 for TC and OC, limits given by manufacturer for EC" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty as reported by the Sunset instrument" />
    <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 147" />
    <attribute name="ebas_organization" value="FR11L, Agence nationale pour la gestion des déchets radioactifs, Andra, , 1/7 rue Jean Monnet, , 92298, CHATENAY-MALABRY Cedex, France" />
    <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;Jaffrezo, Jean Luc, Jean-Luc.Jaffrezo@univ-grenoble-alpes.fr, Laboratoire de Glaciologie et Geophysique de lEnvironnement, LGGE, Laboratoire daerologie, Chimie Atmospherique Neige et Glace, 54 rue Moliere BP 96, F-38402, Saint-Martin dHeres cedex, France&quot;, &quot;Conil, Sebastien, Sebastien.Conil@andra.fr, Observatoire Perenne de l'Environnement, ANDRA/OPE, Centre de Meuse/Haute-Marne, RD960, CP9, 55290, Bure, France&quot;, &quot;Elazzouzi, Rhabira, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCA. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="after prefiring, sample are packed in aluminum foil and sealed in plastic sheath before analysis" />
    <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/highvolumefiltersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/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="P6D" />
    <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_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="2026-05-29T13:06:05.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="FR0022R" />
    <attribute name="ebas_platform_code" value="FR0022S" />
    <attribute name="ebas_station_name" value="Observatoire Perenne de l'Environnement" />
    <attribute name="ebas_station_gaw_id" value="OPE" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" type="double" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.562" />
    <attribute name="ebas_measurement_longitude" type="double" value="5.505" />
    <attribute name="ebas_measurement_altitude" value="392.0 m" />
    <attribute name="ebas_measurement_height" value="4.0 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="FR11L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="DIGITEL_DHA-80_OPE_pm10_ambient" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_instrument_serial_number" value="5020" />
    <attribute name="ebas_analytical_laboratory_code" value="FR11L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="SUNSET_French_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="OCEC Lab Instrument Model 5" />
    <attribute name="ebas_analytical_instrument_serial_number" value="150A" />
    <attribute name="ebas_method_ref" value="FR11L_high_vol_sampler_DIGITEL_DHA-80" />
    <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="PM10 size cut-off" />
    <attribute name="ebas_flow_rate" value="493.5 l/min" />
    <attribute name="ebas_filter_face_velocity" value="53.43 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="153.94 cm2" />
    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 150mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="773.15 K, 8.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="None" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_artifact_correction" value="None" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head" />
    <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 for TC and OC, limits given by manufacturer for EC" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty as reported by the Sunset instrument" />
    <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 147" />
    <attribute name="ebas_organization" value="FR11L, Agence nationale pour la gestion des déchets radioactifs, Andra, , 1/7 rue Jean Monnet, , 92298, CHATENAY-MALABRY Cedex, France" />
    <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;Jaffrezo, Jean Luc, Jean-Luc.Jaffrezo@univ-grenoble-alpes.fr, Laboratoire de Glaciologie et Geophysique de lEnvironnement, LGGE, Laboratoire daerologie, Chimie Atmospherique Neige et Glace, 54 rue Moliere BP 96, F-38402, Saint-Martin dHeres cedex, France&quot;, &quot;Conil, Sebastien, Sebastien.Conil@andra.fr, Observatoire Perenne de l'Environnement, ANDRA/OPE, Centre de Meuse/Haute-Marne, RD960, CP9, 55290, Bure, France&quot;, &quot;Elazzouzi, Rhabira, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCA. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="after prefiring, sample are packed in aluminum foil and sealed in plastic sheath before analysis" />
    <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/highvolumefiltersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/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="P6D" />
    <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="2026-05-29T13:06:05.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="FR0022R" />
    <attribute name="ebas_platform_code" value="FR0022S" />
    <attribute name="ebas_station_name" value="Observatoire Perenne de l'Environnement" />
    <attribute name="ebas_station_gaw_id" value="OPE" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" type="double" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.562" />
    <attribute name="ebas_measurement_longitude" type="double" value="5.505" />
    <attribute name="ebas_measurement_altitude" value="392.0 m" />
    <attribute name="ebas_measurement_height" value="4.0 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="FR11L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="DIGITEL_DHA-80_OPE_pm10_ambient" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_instrument_serial_number" value="5020" />
    <attribute name="ebas_analytical_laboratory_code" value="FR11L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="SUNSET_French_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="OCEC Lab Instrument Model 5" />
    <attribute name="ebas_analytical_instrument_serial_number" value="150A" />
    <attribute name="ebas_method_ref" value="FR11L_high_vol_sampler_DIGITEL_DHA-80" />
    <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="PM10 size cut-off" />
    <attribute name="ebas_flow_rate" value="493.5 l/min" />
    <attribute name="ebas_filter_face_velocity" value="53.43 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="153.94 cm2" />
    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 150mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="773.15 K, 8.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="None" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_artifact_correction" value="None" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head" />
    <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 for TC and OC, limits given by manufacturer for EC" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty as reported by the Sunset instrument" />
    <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 147" />
    <attribute name="ebas_organization" value="FR11L, Agence nationale pour la gestion des déchets radioactifs, Andra, , 1/7 rue Jean Monnet, , 92298, CHATENAY-MALABRY Cedex, France" />
    <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;Jaffrezo, Jean Luc, Jean-Luc.Jaffrezo@univ-grenoble-alpes.fr, Laboratoire de Glaciologie et Geophysique de lEnvironnement, LGGE, Laboratoire daerologie, Chimie Atmospherique Neige et Glace, 54 rue Moliere BP 96, F-38402, Saint-Martin dHeres cedex, France&quot;, &quot;Conil, Sebastien, Sebastien.Conil@andra.fr, Observatoire Perenne de l'Environnement, ANDRA/OPE, Centre de Meuse/Haute-Marne, RD960, CP9, 55290, Bure, France&quot;, &quot;Elazzouzi, Rhabira, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCA. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="after prefiring, sample are packed in aluminum foil and sealed in plastic sheath before analysis" />
    <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/highvolumefiltersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/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="P6D" />
    <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="2026-05-29T13:06:05.000000Z" />
    <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="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="FR0022R" />
    <attribute name="ebas_platform_code" value="FR0022S" />
    <attribute name="ebas_station_name" value="Observatoire Perenne de l'Environnement" />
    <attribute name="ebas_station_gaw_id" value="OPE" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" type="double" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.562" />
    <attribute name="ebas_measurement_longitude" type="double" value="5.505" />
    <attribute name="ebas_measurement_altitude" value="392.0 m" />
    <attribute name="ebas_measurement_height" value="4.0 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="FR11L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="DIGITEL_DHA-80_OPE_pm10_ambient" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_instrument_serial_number" value="5020" />
    <attribute name="ebas_analytical_laboratory_code" value="FR11L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="SUNSET_French_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="OCEC Lab Instrument Model 5" />
    <attribute name="ebas_analytical_instrument_serial_number" value="150A" />
    <attribute name="ebas_method_ref" value="FR11L_high_vol_sampler_DIGITEL_DHA-80" />
    <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="PM10 size cut-off" />
    <attribute name="ebas_flow_rate" value="493.5 l/min" />
    <attribute name="ebas_filter_face_velocity" value="53.43 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="153.94 cm2" />
    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 150mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="773.15 K, 8.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_sample_preparation" value="None" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_artifact_correction" value="None" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head" />
    <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 for TC and OC, limits given by manufacturer for EC" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty as reported by the Sunset instrument" />
    <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 147" />
    <attribute name="ebas_organization" value="FR11L, Agence nationale pour la gestion des déchets radioactifs, Andra, , 1/7 rue Jean Monnet, , 92298, CHATENAY-MALABRY Cedex, France" />
    <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;Jaffrezo, Jean Luc, Jean-Luc.Jaffrezo@univ-grenoble-alpes.fr, Laboratoire de Glaciologie et Geophysique de lEnvironnement, LGGE, Laboratoire daerologie, Chimie Atmospherique Neige et Glace, 54 rue Moliere BP 96, F-38402, Saint-Martin dHeres cedex, France&quot;, &quot;Conil, Sebastien, Sebastien.Conil@andra.fr, Observatoire Perenne de l'Environnement, ANDRA/OPE, Centre de Meuse/Haute-Marne, RD960, CP9, 55290, Bure, France&quot;, &quot;Elazzouzi, Rhabira, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCA. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="after prefiring, sample are packed in aluminum foil and sealed in plastic sheath before analysis" />
    <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/highvolumefiltersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/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="P6D" />
    <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_Fraction" shape="d_Fraction" type="String" />
</netcdf>
