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  <attribute name="title" value="Ground based in situ observations of low_vol_sampler at Observatoire Perenne de l'Environnement (FR0022R)" />
  <attribute name="keywords" value="mass_concentration_of_total_carbon_in_pm10_in_air, total_carbon, GAW-WDCA, ACTRIS, FR0022R, organic_carbon, pm10, mass_concentration_of_elemental_carbon_in_pm10_in_air, elemental_carbon, Observatoire Perenne de l'Environnement, EMEP, mass_concentration_of_organic_carbon_in_pm10_in_air" />
  <attribute name="id" value="VSDC-NMH9.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, EMEP, GAW-WDCA" />
  <attribute name="acknowledgement" value="For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
  <attribute name="doi" value="https://doi.org/10.48597/VSDC-NMH9" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Jean Luc Jaffrezo, Sebastien Conil, Anthony Vella, Jean Luc Jaffrezo, Sebastien Conil, Anthony Vella, Jean Luc Jaffrezo, Sebastien Conil, Anthony Vella, Jean Luc Jaffrezo, Sebastien Conil, Anthony Vella, elemental_carbon, organic_carbon, total_carbon - low_vol_sampler at Observatoire Perenne de l'Environnement, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/VSDC-NMH9" />
  <attribute name="summary" value="Ground based in situ observations of low_vol_sampler at Observatoire Perenne de l'Environnement (FR0022R). 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), 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), 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), total_carbon in pm10 (mass_concentration_of_total_carbon_in_pm10_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="FR18L, Université Grenoble-Alpes-CNRS, IGE, Insitut des Géosciences de l'Environnement, 54 rue Molière, Domaine Universitaire, 38400, Saint-Martin-d'Hères, France" />
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  <attribute name="date_created" value="2023-10-11T11:28:58 UTC" />
  <attribute name="date_metadata_modified" value="2023-10-11T11:28:58 UTC" />
  <attribute name="creator_name" value="Jean Luc Jaffrezo, Sebastien Conil, Anthony Vella, Jean Luc Jaffrezo, Sebastien Conil, Anthony Vella, Jean Luc Jaffrezo, Sebastien Conil, Anthony Vella, Jean Luc Jaffrezo, Sebastien Conil, Anthony Vella" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="Jean-Luc.Jaffrezo@univ-grenoble-alpes.fr, Sebastien.Conil@andra.fr, Anthony.Vella@univ-grenoble-alpes.fr, Jean-Luc.Jaffrezo@univ-grenoble-alpes.fr, Sebastien.Conil@andra.fr, Anthony.Vella@univ-grenoble-alpes.fr, Jean-Luc.Jaffrezo@univ-grenoble-alpes.fr, Sebastien.Conil@andra.fr, Anthony.Vella@univ-grenoble-alpes.fr, Jean-Luc.Jaffrezo@univ-grenoble-alpes.fr, Sebastien.Conil@andra.fr, Anthony.Vella@univ-grenoble-alpes.fr" />
  <attribute name="creator_institution" value="&quot;Laboratoire de Glaciologie et Geophysique de lEnvironnement, Laboratoire daerologie, LGGE&quot;, &quot;Observatoire Perenne de l'Environnement, Centre de Meuse/Haute-Marne, ANDRA/OPE&quot;, Institut des Geosciences de l'Environnement, &quot;Laboratoire de Glaciologie et Geophysique de lEnvironnement, Laboratoire daerologie, LGGE&quot;, &quot;Observatoire Perenne de l'Environnement, Centre de Meuse/Haute-Marne, ANDRA/OPE&quot;, Institut des Geosciences de l'Environnement, &quot;Laboratoire de Glaciologie et Geophysique de lEnvironnement, Laboratoire daerologie, LGGE&quot;, &quot;Observatoire Perenne de l'Environnement, Centre de Meuse/Haute-Marne, ANDRA/OPE&quot;, Institut des Geosciences de l'Environnement, &quot;Laboratoire de Glaciologie et Geophysique de lEnvironnement, Laboratoire daerologie, LGGE&quot;, &quot;Observatoire Perenne de l'Environnement, Centre de Meuse/Haute-Marne, ANDRA/OPE&quot;, Institut des Geosciences de l'Environnement" />
  <attribute name="contributor_name" value="Nicolas Pascal, Nicolas Pascal, Nicolas Pascal, Nicolas Pascal" />
  <attribute name="contributor_role" value="data submitter, data submitter, data submitter, data submitter" />
  <attribute name="publisher_type" value="institution" />
  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_institution" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_email" value="ebas@nilu.no" />
  <attribute name="publisher_url" value="https://www.nilu.no/" />
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  <attribute name="time_coverage_start" value="2011-11-22T09:00:00 UTC" />
  <attribute name="time_coverage_end" value="2016-01-04T09:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0004-01-13T00:00:00" />
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  <attribute name="ebas_citation" value="Jean Luc Jaffrezo, Sebastien Conil, Anthony Vella, Jean Luc Jaffrezo, Sebastien Conil, Anthony Vella, Jean Luc Jaffrezo, Sebastien Conil, Anthony Vella, Jean Luc Jaffrezo, Sebastien Conil, Anthony Vella, elemental_carbon, organic_carbon, total_carbon - low_vol_sampler at Observatoire Perenne de l'Environnement, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/VSDC-NMH9" />
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  <attribute name="ebas_station_setting" value="Rural" />
  <attribute name="ebas_station_wmo_region" value="6" />
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  <attribute name="ebas_station_altitude" value="392.0 m" />
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  <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" />
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  <attribute name="ebas_instrument_manufacturer" value="Thermo" />
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  <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="FR18L_low_vol_sampler_Thermo_Partisol" />
  <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014, TEMP=EUSAAR_2" />
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  <attribute name="ebas_inlet_description" value="PM10 size cut-off" />
  <attribute name="ebas_exposed_filter_area" value="11.34 cm2" />
  <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 47mm" />
  <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_qa1_measure_id" value="ECAC-OCEC-2017-1" />
  <attribute name="ebas_qa1_date" value="2017-03-01 UTC" />
  <attribute name="ebas_qa1_document_name" value="Results of the inter-laboratory comparison exercise for TC and EC measurements (ref.: OCEC-2017-1)" />
  <attribute name="ebas_qa1_document_url" value="http://www.actris-ecac.eu/files/ECAC-report-OCEC-2017-1.pdf" />
  <attribute name="ebas_qa2_measure_id" value="ECAC-OCEC-2019-1" />
  <attribute name="ebas_qa2_date" value="2019-03-01 UTC" />
  <attribute name="ebas_qa2_document_name" value="Results of the inter-laboratory comparison exercise for TC and EC measurements (ref.: OCEC-2019-1)" />
  <attribute name="ebas_qa2_document_url" value="https://www.actris-ecac.eu/files/OCEC-2019-1-REPORT_final.pdf" />
  <attribute name="ebas_organization" value="FR18L, Université Grenoble-Alpes-CNRS, IGE, Insitut des Géosciences de l'Environnement, 54 rue Molière, Domaine Universitaire, 38400, Saint-Martin-d'Hères, France" />
  <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
  <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
  <attribute name="ebas_framework_description" value="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., 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., 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." />
  <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="Vella, Anthony, Anthony.Vella@univ-grenoble-alpes.fr, Institut des Geosciences de l'Environnement, , , Chimie Atmospherique Neige et Glace, 460 rue de la piscine, F-38402, Saint-Martin d'Heres cedex, France" />
  <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
  <attribute name="ebas_acknowledgement" value="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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   &quot;Station WMO region&quot;: &quot;6&quot;,&#xA;    &quot;Station latitude&quot;: &quot;48.562222222222225&quot;,&#xA;    &quot;Station longitude&quot;: &quot;5.5055555555555555&quot;,&#xA;    &quot;Station altitude&quot;: &quot;392.0 m&quot;,&#xA;    &quot;Measurement latitude&quot;: &quot;48.562&quot;,&#xA;    &quot;Measurement longitude&quot;: &quot;5.505&quot;,&#xA;    &quot;Measurement altitude&quot;: &quot;392.0 m&quot;,&#xA;    &quot;Measurement height&quot;: &quot;4.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Unit&quot;: &quot;ug C/m3&quot;,&#xA;    &quot;Matrix&quot;: &quot;pm10&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;FR18L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;low_vol_sampler&quot;,&#xA;    &quot;Instrument name&quot;: &quot;Thermo_Partisol_OPE_pm10_ambient&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;Thermo&quot;,&#xA;    &quot;Instrument model&quot;: &quot;Partisol2025&quot;,&#xA;    &quot;Instrument serial number&quot;: &quot;2025B226591006&quot;,&#xA;    &quot;Analytical laboratory code&quot;: &quot;FR18L&quot;,&#xA;    &quot;Analytical measurement technique&quot;: &quot;thermal-optical_analysis&quot;,&#xA;    &quot;Analytical instrument name&quot;: &quot;SUNSET_French_1&quot;,&#xA;    &quot;Analytical instrument manufacturer&quot;: &quot;Sunset Laboratory&quot;,&#xA;    &quot;Analytical instrument model&quot;: &quot;OCEC Lab Instrument Model 5&quot;,&#xA;    &quot;Analytical instrument serial number&quot;: &quot;150A&quot;,&#xA;    &quot;Method ref&quot;: &quot;FR18L_low_vol_sampler_Thermo_Partisol&quot;,&#xA;    &quot;Standard method&quot;: &quot;SOP=EMEP_manual_v2014, TEMP=EUSAAR_2&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Impactor--direct&quot;,&#xA;    &quot;Inlet description&quot;: &quot;PM10 size cut-off&quot;,&#xA;    &quot;Exposed filter area&quot;: &quot;11.34 cm2&quot;,&#xA;    &quot;Filter description&quot;: &quot;Tissuquartz 2500 QAT-UP 47mm&quot;,&#xA;    &quot;Medium&quot;: &quot;Quartz&quot;,&#xA;    &quot;Filter prefiring&quot;: &quot;773.15 K, 8.0 h&quot;,&#xA; 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   &quot;Zero/negative values&quot;: &quot;Zero values reported as measured if within detection limit, flagged with 147&quot;,&#xA;    &quot;QA1 measure ID&quot;: &quot;ECAC-OCEC-2017-1&quot;,&#xA;    &quot;QA1 date&quot;: &quot;2017-03-01 UTC&quot;,&#xA;    &quot;QA1 document name&quot;: &quot;Results of the inter-laboratory comparison exercise for TC and EC measurements (ref.: OCEC-2017-1)&quot;,&#xA;    &quot;QA1 document URL&quot;: &quot;http://www.actris-ecac.eu/files/ECAC-report-OCEC-2017-1.pdf&quot;,&#xA;    &quot;QA2 measure ID&quot;: &quot;ECAC-OCEC-2019-1&quot;,&#xA;    &quot;QA2 date&quot;: &quot;2019-03-01 UTC&quot;,&#xA;    &quot;QA2 document name&quot;: &quot;Results of the inter-laboratory comparison exercise for TC and EC measurements (ref.: OCEC-2019-1)&quot;,&#xA;    &quot;QA2 document URL&quot;: &quot;https://www.actris-ecac.eu/files/OCEC-2019-1-REPORT_final.pdf&quot;,&#xA;    &quot;Organization&quot;: &quot;FR18L, Université Grenoble-Alpes-CNRS, IGE, Insitut des Géosciences de l'Environnement, 54 rue Molière, Domaine Universitaire, 38400, Saint-Martin-d'Hères, France&quot;,&#xA;    &quot;Framework acronym&quot;: &quot;ACTRIS, EMEP, GAW-WDCA&quot;,&#xA;    &quot;Framework name&quot;: &quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Aerosols&quot;,&#xA;    &quot;Framework description&quot;: &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., 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., 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;,&#xA;    &quot;Framework contact name&quot;: &quot;Cathrine Lund Myhre, Kjetil Tørseth, Markus Fiebig&quot;,&#xA;    &quot;Framework contact email&quot;: &quot;clm@nilu.no, kt@nilu.no, Markus.Fiebig@nilu.no&quot;,&#xA;    &quot;Originator&quot;: &quot;Vella, Anthony, Anthony.Vella@univ-grenoble-alpes.fr, Institut des Geosciences de l'Environnement, , , Chimie Atmospherique Neige et Glace, 460 rue de la piscine, F-38402, Saint-Martin d'Heres cedex, France&quot;,&#xA;    &quot;Submitter&quot;: &quot;Pascal, Nicolas, , , , , , , , , &quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment&quot;,&#xA;    &quot;Comment&quot;: &quot;after prefiring, sample are packed in aluminum foil and sealed in plastic sheath before analysis&quot;&#xA;}" />
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  <dimension name="elemental_carbon_uncertainty_qc_flags" length="1" />
  <dimension name="organic_carbon_amean_0_qc_flags" length="1" />
  <dimension name="organic_carbon_amean_1_qc_flags" length="1" />
  <dimension name="organic_carbon_amean_2_qc_flags" length="1" />
  <dimension name="organic_carbon_amean_3_qc_flags" length="1" />
  <dimension name="organic_carbon_amean_4_qc_flags" length="1" />
  <dimension name="organic_carbon_amean_5_qc_flags" length="1" />
  <dimension name="organic_carbon_amean_6_qc_flags" length="1" />
  <dimension name="organic_carbon_amean_7_qc_flags" length="1" />
  <dimension name="organic_carbon_amean_8_qc_flags" length="1" />
  <dimension name="organic_carbon_amean_9_qc_flags" length="1" />
  <dimension name="organic_carbon_uncertainty_qc_flags" length="1" />
  <dimension name="total_carbon_amean_qc_flags" length="1" />
  <dimension name="total_carbon_uncertainty_qc_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2011-11-25T21:00:00Z" />
    <attribute name="time_coverage_end" value="2015-12-31T21:00:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="666705.0" />
    <attribute name="time_coverage_duration" value="P0Y0M1497DT0H0M0.000S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-17" />
    <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="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="elemental_carbon_amean_qc elemental_carbon_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20231011112858" />
    <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="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <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" value="6" />
    <attribute name="ebas_station_latitude" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="48.562" />
    <attribute name="ebas_measurement_longitude" 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="FR18L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="Thermo_Partisol_OPE_pm10_ambient" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="2025B226591006" />
    <attribute name="ebas_analytical_laboratory_code" value="FR18L" />
    <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="FR18L_low_vol_sampler_Thermo_Partisol" />
    <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_exposed_filter_area" value="11.34 cm2" />
    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 47mm" />
    <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" value="0.009 ug C/m3" />
    <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_qa1_bias" value="0.0 %" />
    <attribute name="ebas_qa1_variability" value="17.0 %" />
    <attribute name="ebas_organization" value="FR18L, Université Grenoble-Alpes-CNRS, IGE, Insitut des Géosciences de l'Environnement, 54 rue Molière, Domaine Universitaire, 38400, Saint-Martin-d'Hères, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="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., 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., 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." />
    <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_acknowledgement" value="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" />
  </variable>
  <variable name="elemental_carbon_amean_qc" shape="elemental_carbon_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="elemental_carbon_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="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="elemental_carbon_uncertainty_qc elemental_carbon_uncertainty_ebasmetadata" />
    <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="20231011112858" />
    <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="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <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" value="6" />
    <attribute name="ebas_station_latitude" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="48.562" />
    <attribute name="ebas_measurement_longitude" 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="FR18L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="Thermo_Partisol_OPE_pm10_ambient" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="2025B226591006" />
    <attribute name="ebas_analytical_laboratory_code" value="FR18L" />
    <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="FR18L_low_vol_sampler_Thermo_Partisol" />
    <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_exposed_filter_area" value="11.34 cm2" />
    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 47mm" />
    <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="FR18L, Université Grenoble-Alpes-CNRS, IGE, Insitut des Géosciences de l'Environnement, 54 rue Molière, Domaine Universitaire, 38400, Saint-Martin-d'Hères, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="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., 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., 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." />
    <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_acknowledgement" value="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" />
  </variable>
  <variable name="elemental_carbon_uncertainty_qc" shape="elemental_carbon_uncertainty_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="elemental_carbon_uncertainty_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="organic_carbon_amean_0" 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="organic_carbon_amean_0_qc organic_carbon_amean_0_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20231011112858" />
    <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="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <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" value="6" />
    <attribute name="ebas_station_latitude" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="48.562" />
    <attribute name="ebas_measurement_longitude" 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="FR18L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="Thermo_Partisol_OPE_pm10_ambient" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="2025B226591006" />
    <attribute name="ebas_analytical_laboratory_code" value="FR18L" />
    <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="FR18L_low_vol_sampler_Thermo_Partisol" />
    <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_exposed_filter_area" value="11.34 cm2" />
    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 47mm" />
    <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="FR18L, Université Grenoble-Alpes-CNRS, IGE, Insitut des Géosciences de l'Environnement, 54 rue Molière, Domaine Universitaire, 38400, Saint-Martin-d'Hères, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="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., 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., 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." />
    <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_acknowledgement" value="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" />
  </variable>
  <variable name="organic_carbon_amean_0_qc" shape="organic_carbon_amean_0_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="organic_carbon_amean_0_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="organic_carbon_amean_1" 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="organic_carbon_amean_1_qc organic_carbon_amean_1_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20231011112858" />
    <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="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <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" value="6" />
    <attribute name="ebas_station_latitude" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="48.562" />
    <attribute name="ebas_measurement_longitude" 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="FR18L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="Thermo_Partisol_OPE_pm10_ambient" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="2025B226591006" />
    <attribute name="ebas_analytical_laboratory_code" value="FR18L" />
    <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="FR18L_low_vol_sampler_Thermo_Partisol" />
    <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_exposed_filter_area" value="11.34 cm2" />
    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 47mm" />
    <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="FR18L, Université Grenoble-Alpes-CNRS, IGE, Insitut des Géosciences de l'Environnement, 54 rue Molière, Domaine Universitaire, 38400, Saint-Martin-d'Hères, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="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., 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., 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." />
    <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_acknowledgement" value="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" />
  </variable>
  <variable name="organic_carbon_amean_1_qc" shape="organic_carbon_amean_1_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="organic_carbon_amean_1_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="organic_carbon_amean_2" 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="organic_carbon_amean_2_qc organic_carbon_amean_2_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20231011112858" />
    <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="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <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" value="6" />
    <attribute name="ebas_station_latitude" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="48.562" />
    <attribute name="ebas_measurement_longitude" 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="FR18L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="Thermo_Partisol_OPE_pm10_ambient" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="2025B226591006" />
    <attribute name="ebas_analytical_laboratory_code" value="FR18L" />
    <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="FR18L_low_vol_sampler_Thermo_Partisol" />
    <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_exposed_filter_area" value="11.34 cm2" />
    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 47mm" />
    <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="FR18L, Université Grenoble-Alpes-CNRS, IGE, Insitut des Géosciences de l'Environnement, 54 rue Molière, Domaine Universitaire, 38400, Saint-Martin-d'Hères, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="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., 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., 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." />
    <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_acknowledgement" value="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" />
  </variable>
  <variable name="organic_carbon_amean_2_qc" shape="organic_carbon_amean_2_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="organic_carbon_amean_2_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="organic_carbon_amean_3" 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="organic_carbon_amean_3_qc organic_carbon_amean_3_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20231011112858" />
    <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="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <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" value="6" />
    <attribute name="ebas_station_latitude" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="48.562" />
    <attribute name="ebas_measurement_longitude" 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="FR18L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="Thermo_Partisol_OPE_pm10_ambient" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
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    <attribute name="ebas_analytical_laboratory_code" value="FR18L" />
    <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" />
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    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM10 size cut-off" />
    <attribute name="ebas_exposed_filter_area" value="11.34 cm2" />
    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 47mm" />
    <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" />
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    <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="FR18L, Université Grenoble-Alpes-CNRS, IGE, Insitut des Géosciences de l'Environnement, 54 rue Molière, Domaine Universitaire, 38400, Saint-Martin-d'Hères, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="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., 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., 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." />
    <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_acknowledgement" value="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" />
  </variable>
  <variable name="organic_carbon_amean_3_qc" shape="organic_carbon_amean_3_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="organic_carbon_amean_3_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="organic_carbon_amean_4" 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="organic_carbon_amean_4_qc organic_carbon_amean_4_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20231011112858" />
    <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="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <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" value="6" />
    <attribute name="ebas_station_latitude" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="48.562" />
    <attribute name="ebas_measurement_longitude" 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="FR18L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="Thermo_Partisol_OPE_pm10_ambient" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
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    <attribute name="ebas_analytical_laboratory_code" value="FR18L" />
    <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" />
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    <attribute name="ebas_method_ref" value="FR18L_low_vol_sampler_Thermo_Partisol" />
    <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_exposed_filter_area" value="11.34 cm2" />
    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 47mm" />
    <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="FR18L, Université Grenoble-Alpes-CNRS, IGE, Insitut des Géosciences de l'Environnement, 54 rue Molière, Domaine Universitaire, 38400, Saint-Martin-d'Hères, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="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., 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., 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." />
    <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_acknowledgement" value="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" />
  </variable>
  <variable name="organic_carbon_amean_4_qc" shape="organic_carbon_amean_4_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="organic_carbon_amean_4_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="organic_carbon_amean_5" 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="organic_carbon_amean_5_qc organic_carbon_amean_5_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20231011112858" />
    <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="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <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" value="6" />
    <attribute name="ebas_station_latitude" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="48.562" />
    <attribute name="ebas_measurement_longitude" 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="FR18L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="Thermo_Partisol_OPE_pm10_ambient" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
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    <attribute name="ebas_analytical_laboratory_code" value="FR18L" />
    <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="FR18L_low_vol_sampler_Thermo_Partisol" />
    <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_exposed_filter_area" value="11.34 cm2" />
    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 47mm" />
    <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="FR18L, Université Grenoble-Alpes-CNRS, IGE, Insitut des Géosciences de l'Environnement, 54 rue Molière, Domaine Universitaire, 38400, Saint-Martin-d'Hères, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="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., 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., 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." />
    <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_acknowledgement" value="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" />
  </variable>
  <variable name="organic_carbon_amean_5_qc" shape="organic_carbon_amean_5_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="organic_carbon_amean_5_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="organic_carbon_amean_6" 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="organic_carbon_amean_6_qc organic_carbon_amean_6_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20231011112858" />
    <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="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <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" value="6" />
    <attribute name="ebas_station_latitude" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="48.562" />
    <attribute name="ebas_measurement_longitude" 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="FR18L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="Thermo_Partisol_OPE_pm10_ambient" />
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    <attribute name="ebas_analytical_laboratory_code" value="FR18L" />
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    <attribute name="ebas_analytical_instrument_name" value="SUNSET_French_1" />
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    <attribute name="ebas_inlet_description" value="PM10 size cut-off" />
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    <attribute name="ebas_filter_prefiring" value="773.15 K, 8.0 h" />
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    <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" />
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    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="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., 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., 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." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Markus Fiebig" />
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  <variable name="organic_carbon_amean_6_qc" shape="organic_carbon_amean_6_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="organic_carbon_amean_6_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="organic_carbon_amean_7" 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="organic_carbon_amean_7_qc organic_carbon_amean_7_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20231011112858" />
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    <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="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <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" value="6" />
    <attribute name="ebas_station_latitude" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="48.562" />
    <attribute name="ebas_measurement_longitude" 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" />
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    <attribute name="ebas_instrument_name" value="Thermo_Partisol_OPE_pm10_ambient" />
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    <attribute name="ebas_filter_prefiring" value="773.15 K, 8.0 h" />
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    <attribute name="ebas_blank_correction" value="Blank corrected" />
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    <attribute name="ebas_charring_correction" value="By laser transmission" />
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    <attribute name="ebas_organization" value="FR18L, Université Grenoble-Alpes-CNRS, IGE, Insitut des Géosciences de l'Environnement, 54 rue Molière, Domaine Universitaire, 38400, Saint-Martin-d'Hères, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="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., 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., 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." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Markus Fiebig" />
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    <attribute name="ebas_acknowledgement" value="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" />
  </variable>
  <variable name="organic_carbon_amean_7_qc" shape="organic_carbon_amean_7_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="organic_carbon_amean_7_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="organic_carbon_amean_8" 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="organic_carbon_amean_8_qc organic_carbon_amean_8_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20231011112858" />
    <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="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <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" value="6" />
    <attribute name="ebas_station_latitude" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="48.562" />
    <attribute name="ebas_measurement_longitude" 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="FR18L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="Thermo_Partisol_OPE_pm10_ambient" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="2025B226591006" />
    <attribute name="ebas_analytical_laboratory_code" value="FR18L" />
    <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="FR18L_low_vol_sampler_Thermo_Partisol" />
    <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_exposed_filter_area" value="11.34 cm2" />
    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 47mm" />
    <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="FR18L, Université Grenoble-Alpes-CNRS, IGE, Insitut des Géosciences de l'Environnement, 54 rue Molière, Domaine Universitaire, 38400, Saint-Martin-d'Hères, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="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., 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., 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." />
    <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_acknowledgement" value="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" />
  </variable>
  <variable name="organic_carbon_amean_8_qc" shape="organic_carbon_amean_8_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="organic_carbon_amean_8_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="organic_carbon_amean_9" 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="organic_carbon_amean_9_qc organic_carbon_amean_9_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20231011112858" />
    <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="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <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" value="6" />
    <attribute name="ebas_station_latitude" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="48.562" />
    <attribute name="ebas_measurement_longitude" 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="FR18L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="Thermo_Partisol_OPE_pm10_ambient" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="2025B226591006" />
    <attribute name="ebas_analytical_laboratory_code" value="FR18L" />
    <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="FR18L_low_vol_sampler_Thermo_Partisol" />
    <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_exposed_filter_area" value="11.34 cm2" />
    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 47mm" />
    <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_qa1_bias" value="-3.0 %" />
    <attribute name="ebas_qa1_variability" value="7.0 %" />
    <attribute name="ebas_organization" value="FR18L, Université Grenoble-Alpes-CNRS, IGE, Insitut des Géosciences de l'Environnement, 54 rue Molière, Domaine Universitaire, 38400, Saint-Martin-d'Hères, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="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., 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., 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." />
    <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_acknowledgement" value="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" />
  </variable>
  <variable name="organic_carbon_amean_9_qc" shape="organic_carbon_amean_9_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="organic_carbon_amean_9_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="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="organic_carbon_uncertainty_qc organic_carbon_uncertainty_ebasmetadata" />
    <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="20231011112858" />
    <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="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <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" value="6" />
    <attribute name="ebas_station_latitude" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="48.562" />
    <attribute name="ebas_measurement_longitude" 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="FR18L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="Thermo_Partisol_OPE_pm10_ambient" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="2025B226591006" />
    <attribute name="ebas_analytical_laboratory_code" value="FR18L" />
    <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="FR18L_low_vol_sampler_Thermo_Partisol" />
    <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_exposed_filter_area" value="11.34 cm2" />
    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 47mm" />
    <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="FR18L, Université Grenoble-Alpes-CNRS, IGE, Insitut des Géosciences de l'Environnement, 54 rue Molière, Domaine Universitaire, 38400, Saint-Martin-d'Hères, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="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., 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., 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." />
    <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_acknowledgement" value="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" />
  </variable>
  <variable name="organic_carbon_uncertainty_qc" shape="organic_carbon_uncertainty_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="organic_carbon_uncertainty_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="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="total_carbon_amean_qc total_carbon_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20231011112858" />
    <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="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <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" value="6" />
    <attribute name="ebas_station_latitude" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="48.562" />
    <attribute name="ebas_measurement_longitude" 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="FR18L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="Thermo_Partisol_OPE_pm10_ambient" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="2025B226591006" />
    <attribute name="ebas_analytical_laboratory_code" value="FR18L" />
    <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="FR18L_low_vol_sampler_Thermo_Partisol" />
    <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_exposed_filter_area" value="11.34 cm2" />
    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 47mm" />
    <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_qa1_bias" value="-4.0 %" />
    <attribute name="ebas_qa1_variability" value="5.0 %" />
    <attribute name="ebas_organization" value="FR18L, Université Grenoble-Alpes-CNRS, IGE, Insitut des Géosciences de l'Environnement, 54 rue Molière, Domaine Universitaire, 38400, Saint-Martin-d'Hères, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="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., 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., 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." />
    <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_acknowledgement" value="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" />
  </variable>
  <variable name="total_carbon_amean_qc" shape="total_carbon_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="total_carbon_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="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="total_carbon_uncertainty_qc total_carbon_uncertainty_ebasmetadata" />
    <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="20231011112858" />
    <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="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <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" value="6" />
    <attribute name="ebas_station_latitude" value="48.562222222222225" />
    <attribute name="ebas_station_longitude" value="5.5055555555555555" />
    <attribute name="ebas_station_altitude" value="392.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="48.562" />
    <attribute name="ebas_measurement_longitude" 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="FR18L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="Thermo_Partisol_OPE_pm10_ambient" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="2025B226591006" />
    <attribute name="ebas_analytical_laboratory_code" value="FR18L" />
    <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="FR18L_low_vol_sampler_Thermo_Partisol" />
    <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_exposed_filter_area" value="11.34 cm2" />
    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 47mm" />
    <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="FR18L, Université Grenoble-Alpes-CNRS, IGE, Insitut des Géosciences de l'Environnement, 54 rue Molière, Domaine Universitaire, 38400, Saint-Martin-d'Hères, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="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., 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., 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." />
    <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_acknowledgement" value="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" />
  </variable>
  <variable name="total_carbon_uncertainty_qc" shape="total_carbon_uncertainty_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="total_carbon_uncertainty_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="time" shape="time" type="double">
    <attribute name="long_name" value="time of measurement" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
  <variable name="metadata_time" shape="metadata_time" type="double">
    <attribute name="long_name" value="time of ebas metadata intervals" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
