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  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Inorganics in air and particle phase at SIRTA Atmospheric Research Observatory" />
  <attribute name="summary" value="Inorganics in air and particle phase at SIRTA Atmospheric Research Observatory. These measurements are gathered as a part of the following projects ACTRIS, GAW-WDCA and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ['pressure in instrument', 'ammonium in pm1_non_refractory (mass_concentration_of_ammonium_expressed_as_nitrogen_in_non_refractory_pm1_dry_aerosol_particles_in_air)', 'ammonium in pm1_non_refractory (mass_concentration_of_ammonium_in_non_refractory_pm1_dry_aerosol_particles_in_air)', 'chloride in pm1_non_refractory (mass_concentration_of_chloride_in_non_refractory_pm1_in_air)', 'nitrate in pm1_non_refractory (mass_concentration_of_nitrate_expressed_as_nitrogen_in_non_refractory_pm1_dry_aerosol_particles_in_air)', 'nitrate in pm1_non_refractory (mass_concentration_of_nitrate_in_non_refractory_pm1_dry_aerosol_particles_in_air)', 'organic_mass in pm1_non_refractory (mass_concentration_of_organic_mass_in_non_refractory_pm1_in_air)', 'sulphate_total in pm1_non_refractory (mass_concentration_of_sulphate_expressed_as_sulphur_in_non_refractory_pm1_dry_aerosol_particles_in_air)', 'sulphate_total in pm1_non_refractory (mass_concentration_of_sulphate_in_non_refractory_pm1_dry_aerosol_particles_in_air)']" />
  <attribute name="keywords" value="&quot;SIRTA Atmospheric Research Observatory&quot; FR0020R ammonium chloride nitrate organic_mass sulphate_total pm1_non_refractory ACTRIS GAW-WDCA mass_concentration_of_ammonium_expressed_as_nitrogen_in_non_refractory_pm1_dry_aerosol_particles_in_air mass_concentration_of_ammonium_in_non_refractory_pm1_dry_aerosol_particles_in_air mass_concentration_of_chloride_in_non_refractory_pm1_in_air mass_concentration_of_nitrate_expressed_as_nitrogen_in_non_refractory_pm1_dry_aerosol_particles_in_air mass_concentration_of_nitrate_in_non_refractory_pm1_dry_aerosol_particles_in_air mass_concentration_of_organic_mass_in_non_refractory_pm1_in_air mass_concentration_of_sulphate_expressed_as_sulphur_in_non_refractory_pm1_dry_aerosol_particles_in_air mass_concentration_of_sulphate_in_non_refractory_pm1_dry_aerosol_particles_in_air" />
  <attribute name="id" value="4RKH-6RDU.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, GAW-WDCA" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/4RKH-6RDU" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Petit, J., Brochet, J., ACTRIS, GAW-WDCA, 2025, Inorganics in air and particle phase at SIRTA Atmospheric Research Observatory, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/4RKH-6RDU" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="FR01L &quot;Laboratoire des Sciences du Climat et de l'Environnement&quot; LSCE-CNRS-CEA &quot;CEA Orme des Merisiers&quot; &quot;Bat 701&quot; 91191 Gif-sur-Yvette France" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2025-07-03T14:21:21.394057Z" />
  <attribute name="date_metadata_modified" value="2025-07-03T14:21:21Z" />
  <attribute name="creator_name" value="Jean-Eudes Petit, Juliette Brochet" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value=", juliette.brochet@lsce.ipsl.fr" />
  <attribute name="creator_institution" value=", &quot;Laboratoire des Sciences du Climat et de l'Environnement, CEA, LSCE&quot;" />
  <attribute name="contributor_name" value="Nicolas Pascal" />
  <attribute name="contributor_role" value="data submitter" />
  <attribute name="publisher_type" value="institution" />
  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_institution" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_email" value="ebas@nilu.no" />
  <attribute name="publisher_url" value="https://www.nilu.no/" />
  <attribute name="geospatial_bounds" value="MULTIPOINT Z ((2.159 48.709 162), (2.1487 48.7089 162))" />
  <attribute name="geospatial_lat_min" type="double" value="48.7089" />
  <attribute name="geospatial_lat_max" type="double" value="48.709" />
  <attribute name="geospatial_lon_min" type="double" value="2.1487" />
  <attribute name="geospatial_lon_max" type="double" value="2.159" />
  <attribute name="geospatial_vertical_min" type="double" value="162.0" />
  <attribute name="geospatial_vertical_max" type="double" value="162.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2011-09-01T01:00:00Z" />
  <attribute name="time_coverage_end" value="2025-01-01T00:00:00Z" />
  <attribute name="time_coverage_duration" value="P0013-03-30T23:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-00T01:00:00" />
  <attribute name="timezone" value="UTC" />
  <attribute name="ebas_data_definition" value="EBAS_1.1" />
  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Petit, J., Brochet, J., ACTRIS, GAW-WDCA, 2025, Inorganics in air and particle phase at SIRTA Atmospheric Research Observatory, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/4RKH-6RDU" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="4RKH-6RDU.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/4RKH-6RDU" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/4RKH-6RDU" />
  <attribute name="ebas_file_creation" value="2026-05-08T03:37:14.389976Z" />
  <attribute name="ebas_export_state" value="2025-07-03T14:21:21.394057Z" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="2011-09-01T01:00:00.000000Z" />
  <attribute name="ebas_revision_date" value="2025-07-03T14:21:21.394057Z" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="initial revision" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="13y" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_sample_duration" value="1h" />
  <attribute name="ebas_station_code" value="FR0020R" />
  <attribute name="ebas_platform_code" value="FR0020S" />
  <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
  <attribute name="ebas_station_gaw_name" value="SIRTA" />
  <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
  <attribute name="ebas_station_land_use" value="Agricultural" />
  <attribute name="ebas_station_setting" value="Suburban" />
  <attribute name="ebas_station_gaw_type" value="O" />
  <attribute name="ebas_station_wmo_region" type="long" value="6" />
  <attribute name="ebas_station_latitude" type="double" value="48.7089" />
  <attribute name="ebas_station_longitude" type="double" value="2.1487" />
  <attribute name="ebas_station_altitude" value="162.0 m" />
  <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
  <attribute name="ebas_measurement_longitude" type="double" value="2.159" />
  <attribute name="ebas_measurement_altitude" value="162.0 m" />
  <attribute name="ebas_measurement_height" value="6.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_laboratory_code" value="FR01L" />
  <attribute name="ebas_instrument_type" value="aerosol_mass_spectrometer" />
  <attribute name="ebas_instrument_name" value="Aerodyne_Q-ACSM_140-113" />
  <attribute name="ebas_instrument_manufacturer" value="Aerodyne" />
  <attribute name="ebas_instrument_model" value="Q-ACSM" />
  <attribute name="ebas_instrument_serial_number" value="140-113" />
  <attribute name="ebas_method_ref" value="FR01L_Aerodyne_Q-ACSM_SIR" />
  <attribute name="ebas_standard_method" value="None" />
  <attribute name="ebas_inlet_type" value="Cyclone" />
  <attribute name="ebas_inlet_description" value="Inlet cutpoint=PM1; Comment=" />
  <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
  <attribute name="ebas_volume_std_temperature" value="273.15 K" />
  <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
  <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
  <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
  <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
  <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
  <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
  <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
  <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
  <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
  <attribute name="ebas_originator" value="&quot;Petit, Jean-Eudes, , , , , , , , , &quot;, &quot;Brochet, Juliette, juliette.brochet@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, CEA, CEA-Ormes des Merisiers, CEA-Ormes des Merisiers, 91191, Gif-sur-Yvette, France&quot;" />
  <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
  <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, GAW-WDCA. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
  <attribute name="_NCProperties" value="version=2,netcdf=4.9.3,hdf5=1.14.6" />
  <attribute name="Metadata_Conventions" value="Unidata Dataset Discovery v1.0" />
  <attribute name="geospatial_lat_units" value="degrees_north" />
  <attribute name="geospatial_lon_units" value="degrees_east" />
  <attribute name="standard_name_vocabulary" value="CF-1.7, ACDD-1.3" />
  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
  <attribute name="_CoordSysBuilder" value="ucar.nc2.internal.dataset.conv.CF1Convention" />
  <dimension name="time" length="108834" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="13" />
  <dimension name="d_Location" length="1" />
  <dimension name="qc_pressure_flags" length="1" />
  <dimension name="qc_ammonium_ug_N_per_m3_amean_flags" length="1" />
  <dimension name="qc_ammonium_ug_per_m3_amean_flags" length="1" />
  <dimension name="qc_ammonium_ug_N_per_m3_uncertainty_flags" length="1" />
  <dimension name="qc_ammonium_ug_per_m3_uncertainty_flags" length="1" />
  <dimension name="qc_chloride_amean_flags" length="1" />
  <dimension name="qc_chloride_uncertainty_flags" length="1" />
  <dimension name="qc_nitrate_ug_N_per_m3_amean_flags" length="1" />
  <dimension name="qc_nitrate_ug_per_m3_amean_flags" length="1" />
  <dimension name="qc_nitrate_ug_N_per_m3_uncertainty_flags" length="1" />
  <dimension name="qc_nitrate_ug_per_m3_uncertainty_flags" length="1" />
  <dimension name="d_Fraction_d0" length="2" />
  <dimension name="qc_nitrate_ug_N_per_m3_amean_d_Fraction_flags" length="1" />
  <dimension name="qc_nitrate_ug_per_m3_amean_d_Fraction_flags" length="1" />
  <dimension name="qc_nitrate_ug_N_per_m3_uncertainty_d_Fraction_flags" length="1" />
  <dimension name="qc_nitrate_ug_per_m3_uncertainty_d_Fraction_flags" length="1" />
  <dimension name="qc_organic_mass_amean_flags" length="1" />
  <dimension name="qc_organic_mass_uncertainty_flags" length="1" />
  <dimension name="d_Fraction_d1" length="3" />
  <dimension name="qc_organic_mass_amean_d_Fraction_flags" length="1" />
  <dimension name="qc_organic_mass_uncertainty_d_Fraction_flags" length="1" />
  <dimension name="qc_sulphate_total_ug_S_per_m3_amean_flags" length="1" />
  <dimension name="qc_sulphate_total_ug_per_m3_amean_flags" length="1" />
  <dimension name="qc_sulphate_total_ug_S_per_m3_uncertainty_flags" length="1" />
  <dimension name="qc_sulphate_total_ug_per_m3_uncertainty_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2011-09-01T01:30:00Z" />
    <attribute name="time_coverage_end" value="2024-12-31T23:30:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="3866.0" />
    <attribute name="time_coverage_duration" value="P0Y0M4870DT22H0M0.000S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-18" />
    <attribute name="nciso_version" value="2.4.8" />
  </group>
  <variable name="time_bnds" shape="time tbnds" type="double">
    <attribute name="long_name" value="time bounds for measurement" />
  </variable>
  <variable name="metadata_time_bnds" shape="metadata_time tbnds" type="double">
    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
  </variable>
  <variable name="v_pressure" shape="d_Location time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="hPa" />
    <attribute name="ancillary_variables" value="qc_pressure meta_pressure" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2025-07-03T14:21:21.394057Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
    <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.159" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="pressure" />
    <attribute name="ebas_unit" value="hPa" />
    <attribute name="ebas_matrix" value="instrument" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="aerosol_mass_spectrometer" />
    <attribute name="ebas_instrument_name" value="Aerodyne_Q-ACSM_140-113" />
    <attribute name="ebas_instrument_manufacturer" value="Aerodyne" />
    <attribute name="ebas_instrument_model" value="Q-ACSM" />
    <attribute name="ebas_instrument_serial_number" value="140-113" />
    <attribute name="ebas_method_ref" value="FR01L_Aerodyne_Q-ACSM_SIR" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_inlet_description" value="Inlet cutpoint=PM1; Comment=" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Petit, Jean-Eudes, , , , , , , , , &quot;, &quot;Brochet, Juliette, juliette.brochet@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, CEA, CEA-Ormes des Merisiers, CEA-Ormes des Merisiers, 91191, Gif-sur-Yvette, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, GAW-WDCA. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="No SOP currently available" />
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  <variable name="qc_pressure" shape="d_Location qc_pressure_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_pressure" shape="d_Location metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ammonium_ug_N_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ammonium_expressed_as_nitrogen_in_non_refractory_pm1_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_ammonium_ug_N_per_m3_amean meta_ammonium_ug_N_per_m3_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2025-07-03T14:21:21.394057Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
    <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.159" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ammonium" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="pm1_non_refractory" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="aerosol_mass_spectrometer" />
    <attribute name="ebas_instrument_name" value="Aerodyne_Q-ACSM_140-113" />
    <attribute name="ebas_instrument_manufacturer" value="Aerodyne" />
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    <attribute name="ebas_method_ref" value="FR01L_Aerodyne_Q-ACSM_SIR" />
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    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_inlet_description" value="Inlet cutpoint=PM1; Comment=" />
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    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.39601 ug N/m3" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
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    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
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    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on import into EBAS from 'ug/m3' to 'ug N/m3', conversion factor 0.7764843. Detection limit converted from '0.51 ug/m3' to '0.39601 ug N/m3', conversion factor 0.7764843." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticleammoniummassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle ammonium mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM1" />
    <attribute name="actris_matrix_preferred_term" value="PM1" />
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    <attribute name="actris_constraints_preferred_term" value="non-refractory, expressed as nitrogen" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/particlemassspectrometer" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_ammonium_ug_N_per_m3_amean" shape="qc_ammonium_ug_N_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_ammonium_ug_N_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ammonium_ug_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ammonium_in_non_refractory_pm1_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_ammonium_ug_per_m3_amean meta_ammonium_ug_per_m3_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2025-07-03T14:21:21.394057Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
    <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
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    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ammonium" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm1_non_refractory" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="aerosol_mass_spectrometer" />
    <attribute name="ebas_instrument_name" value="Aerodyne_Q-ACSM_140-113" />
    <attribute name="ebas_instrument_manufacturer" value="Aerodyne" />
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    <attribute name="ebas_instrument_serial_number" value="140-113" />
    <attribute name="ebas_method_ref" value="FR01L_Aerodyne_Q-ACSM_SIR" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.51 ug/m3" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
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    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on import into EBAS from 'ug/m3' to 'ug N/m3', conversion factor 0.7764843. Detection limit converted from '0.51 ug/m3' to '0.39601 ug N/m3', conversion factor 0.7764843. -- Data converted on export from EBAS from 'ug N/m3' to 'ug/m3', conversion factor 1.287856. Detection limit converted from '0.39601 ug N/m3' to '0.51 ug/m3', conversion factor 1.287856." />
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    <attribute name="actris_variable_preferred_term" value="aerosol particle ammonium mass concentration" />
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    <attribute name="actris_constraints_preferred_term" value="non-refractory" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_ammonium_ug_per_m3_amean" shape="qc_ammonium_ug_per_m3_amean_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
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  <variable name="meta_ammonium_ug_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_ammonium_ug_N_per_m3_uncertainty" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ammonium_expressed_as_nitrogen_in_non_refractory_pm1_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_ammonium_ug_N_per_m3_uncertainty meta_ammonium_ug_N_per_m3_uncertainty" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2025-07-03T14:21:21.394057Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="uncertainty" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
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    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
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    <attribute name="ebas_component" value="ammonium" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="pm1_non_refractory" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="aerosol_mass_spectrometer" />
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    <attribute name="ebas_method_ref" value="FR01L_Aerodyne_Q-ACSM_SIR" />
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    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="actris_variable_preferred_term" value="aerosol particle ammonium mass concentration" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ammonium_in_non_refractory_pm1_dry_aerosol_particles_in_air" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
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    <attribute name="ebas_matrix" value="pm1_non_refractory" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
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    <attribute name="ebas_instrument_model" value="Q-ACSM" />
    <attribute name="ebas_instrument_serial_number" value="140-113" />
    <attribute name="ebas_method_ref" value="FR01L_Aerodyne_Q-ACSM_SIR" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_inlet_description" value="Inlet cutpoint=PM1; Comment=" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Petit, Jean-Eudes, , , , , , , , , &quot;, &quot;Brochet, Juliette, juliette.brochet@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, CEA, CEA-Ormes des Merisiers, CEA-Ormes des Merisiers, 91191, Gif-sur-Yvette, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, GAW-WDCA. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on import into EBAS from 'ug/m3' to 'ug N/m3', conversion factor 0.7764843. -- Data converted on export from EBAS from 'ug N/m3' to 'ug/m3', conversion factor 1.287856." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticleammoniummassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle ammonium mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM1" />
    <attribute name="actris_matrix_preferred_term" value="PM1" />
    <attribute name="actris_constraints_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/non-refractory" />
    <attribute name="actris_constraints_preferred_term" value="non-refractory" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/particlemassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="particle mass spectrometer" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCA" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ammonium_ug_per_m3_uncertainty" shape="qc_ammonium_ug_per_m3_uncertainty_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ammonium_ug_per_m3_uncertainty" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_chloride_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_chloride_in_non_refractory_pm1_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_chloride_amean meta_chloride_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2025-07-03T14:21:21.394057Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
    <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.159" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="chloride" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm1_non_refractory" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="aerosol_mass_spectrometer" />
    <attribute name="ebas_instrument_name" value="Aerodyne_Q-ACSM_140-113" />
    <attribute name="ebas_instrument_manufacturer" value="Aerodyne" />
    <attribute name="ebas_instrument_model" value="Q-ACSM" />
    <attribute name="ebas_instrument_serial_number" value="140-113" />
    <attribute name="ebas_method_ref" value="FR01L_Aerodyne_Q-ACSM_SIR" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_inlet_description" value="Inlet cutpoint=PM1; Comment=" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.1 ug/m3" />
    <attribute name="ebas_measurement_uncertainty" value="0.2 ug/m3" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Petit, Jean-Eudes, , , , , , , , , &quot;, &quot;Brochet, Juliette, juliette.brochet@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, CEA, CEA-Ormes des Merisiers, CEA-Ormes des Merisiers, 91191, Gif-sur-Yvette, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, GAW-WDCA. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlechloridemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle chloride mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM1" />
    <attribute name="actris_matrix_preferred_term" value="PM1" />
    <attribute name="actris_constraints_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/non-refractory" />
    <attribute name="actris_constraints_preferred_term" value="non-refractory" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/particlemassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="particle mass spectrometer" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCA" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_chloride_amean" shape="qc_chloride_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_chloride_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_chloride_uncertainty" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_chloride_in_non_refractory_pm1_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_chloride_uncertainty meta_chloride_uncertainty" />
    <attribute name="cell_methods" value="time: uncertainty" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2025-07-03T14:21:21.394057Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="uncertainty" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
    <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.159" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="chloride" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm1_non_refractory" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="aerosol_mass_spectrometer" />
    <attribute name="ebas_instrument_name" value="Aerodyne_Q-ACSM_140-113" />
    <attribute name="ebas_instrument_manufacturer" value="Aerodyne" />
    <attribute name="ebas_instrument_model" value="Q-ACSM" />
    <attribute name="ebas_instrument_serial_number" value="140-113" />
    <attribute name="ebas_method_ref" value="FR01L_Aerodyne_Q-ACSM_SIR" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_inlet_description" value="Inlet cutpoint=PM1; Comment=" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Petit, Jean-Eudes, , , , , , , , , &quot;, &quot;Brochet, Juliette, juliette.brochet@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, CEA, CEA-Ormes des Merisiers, CEA-Ormes des Merisiers, 91191, Gif-sur-Yvette, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, GAW-WDCA. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlechloridemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle chloride mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM1" />
    <attribute name="actris_matrix_preferred_term" value="PM1" />
    <attribute name="actris_constraints_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/non-refractory" />
    <attribute name="actris_constraints_preferred_term" value="non-refractory" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/particlemassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="particle mass spectrometer" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCA" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_chloride_uncertainty" shape="qc_chloride_uncertainty_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_chloride_uncertainty" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_nitrate_ug_N_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrate_expressed_as_nitrogen_in_non_refractory_pm1_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_nitrate_ug_N_per_m3_amean meta_nitrate_ug_N_per_m3_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2025-07-03T14:21:21.394057Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
    <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.159" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrate" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="pm1_non_refractory" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="aerosol_mass_spectrometer" />
    <attribute name="ebas_instrument_name" value="Aerodyne_Q-ACSM_140-113" />
    <attribute name="ebas_instrument_manufacturer" value="Aerodyne" />
    <attribute name="ebas_instrument_model" value="Q-ACSM" />
    <attribute name="ebas_instrument_serial_number" value="140-113" />
    <attribute name="ebas_method_ref" value="FR01L_Aerodyne_Q-ACSM_SIR" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_inlet_description" value="Inlet cutpoint=PM1; Comment=" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.027108 ug N/m3" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
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    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
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    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on import into EBAS from 'ug/m3' to 'ug N/m3', conversion factor 0.22590041. Detection limit converted from '0.12 ug/m3' to '0.027108 ug N/m3', conversion factor 0.22590041." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlenitratemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle nitrate mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM1" />
    <attribute name="actris_matrix_preferred_term" value="PM1" />
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    <attribute name="actris_constraints_preferred_term" value="non-refractory, expressed as nitrogen" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="particle mass spectrometer" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_nitrate_ug_N_per_m3_amean" shape="qc_nitrate_ug_N_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_nitrate_ug_N_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_nitrate_ug_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrate_in_non_refractory_pm1_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_nitrate_ug_per_m3_amean meta_nitrate_ug_per_m3_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2025-07-03T14:21:21.394057Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
    <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
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    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.159" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrate" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm1_non_refractory" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="aerosol_mass_spectrometer" />
    <attribute name="ebas_instrument_name" value="Aerodyne_Q-ACSM_140-113" />
    <attribute name="ebas_instrument_manufacturer" value="Aerodyne" />
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    <attribute name="ebas_instrument_serial_number" value="140-113" />
    <attribute name="ebas_method_ref" value="FR01L_Aerodyne_Q-ACSM_SIR" />
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    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_inlet_description" value="Inlet cutpoint=PM1; Comment=" />
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    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
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    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on import into EBAS from 'ug/m3' to 'ug N/m3', conversion factor 0.22590041. Detection limit converted from '0.12 ug/m3' to '0.027108 ug N/m3', conversion factor 0.22590041. -- Data converted on export from EBAS from 'ug N/m3' to 'ug/m3', conversion factor 4.4267295. Detection limit converted from '0.027108 ug N/m3' to '0.12 ug/m3', conversion factor 4.4267295." />
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    <attribute name="actris_variable_preferred_term" value="aerosol particle nitrate mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="PM1" />
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    <attribute name="actris_constraints_preferred_term" value="non-refractory" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="particle mass spectrometer" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_nitrate_ug_per_m3_amean" shape="qc_nitrate_ug_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_nitrate_ug_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_nitrate_ug_N_per_m3_uncertainty" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrate_expressed_as_nitrogen_in_non_refractory_pm1_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_nitrate_ug_N_per_m3_uncertainty meta_nitrate_ug_N_per_m3_uncertainty" />
    <attribute name="cell_methods" value="time: uncertainty" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2025-07-03T14:21:21.394057Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="uncertainty" />
    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
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    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrate" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="pm1_non_refractory" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="aerosol_mass_spectrometer" />
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    <attribute name="ebas_method_ref" value="FR01L_Aerodyne_Q-ACSM_SIR" />
    <attribute name="ebas_standard_method" value="None" />
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    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
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    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on import into EBAS from 'ug/m3' to 'ug N/m3', conversion factor 0.22590041." />
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    <attribute name="actris_variable_preferred_term" value="aerosol particle nitrate mass concentration" />
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  <variable name="meta_nitrate_ug_N_per_m3_uncertainty" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_nitrate_ug_per_m3_uncertainty" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrate_in_non_refractory_pm1_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ancillary_variables" value="qc_nitrate_ug_per_m3_uncertainty meta_nitrate_ug_per_m3_uncertainty" />
    <attribute name="cell_methods" value="time: uncertainty" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="uncertainty" />
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    <attribute name="ebas_station_gaw_type" value="O" />
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    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
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    <attribute name="ebas_station_altitude" value="162.0 m" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrate" />
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    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
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    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on import into EBAS from 'ug/m3' to 'ug N/m3', conversion factor 0.22590041. -- Data converted on export from EBAS from 'ug N/m3' to 'ug/m3', conversion factor 4.4267295." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlenitratemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle nitrate mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM1" />
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    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_nitrate_ug_per_m3_uncertainty" shape="qc_nitrate_ug_per_m3_uncertainty_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_nitrate_ug_per_m3_uncertainty" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_nitrate_ug_N_per_m3_amean_d_Fraction" shape="d_Fraction_d0 time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrate_expressed_as_nitrogen_in_non_refractory_pm1_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_nitrate_ug_N_per_m3_amean_d_Fraction meta_nitrate_ug_N_per_m3_amean_d_Fraction" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2025-07-03T14:21:21.394057Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="FR0020R" />
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    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.159" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrate" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="pm1_non_refractory" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="aerosol_mass_spectrometer" />
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    <attribute name="ebas_instrument_manufacturer" value="Aerodyne" />
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    <attribute name="ebas_inlet_type" value="Cyclone" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
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    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
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    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on import into EBAS from 'ug/m3' to 'ug N/m3', conversion factor 0.22590041." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlenitratemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle nitrate mass concentration" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_nitrate_ug_N_per_m3_amean_d_Fraction" shape="d_Fraction_d0 qc_nitrate_ug_N_per_m3_amean_d_Fraction_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_nitrate_ug_N_per_m3_amean_d_Fraction" shape="d_Fraction_d0 metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrate_in_non_refractory_pm1_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_nitrate_ug_per_m3_amean_d_Fraction meta_nitrate_ug_per_m3_amean_d_Fraction" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
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    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrate" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm1_non_refractory" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on import into EBAS from 'ug/m3' to 'ug N/m3', conversion factor 0.22590041. -- Data converted on export from EBAS from 'ug N/m3' to 'ug/m3', conversion factor 4.4267295." />
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    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_nitrate_ug_per_m3_amean_d_Fraction" shape="d_Fraction_d0 qc_nitrate_ug_per_m3_amean_d_Fraction_flags time" type="int">
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrate_expressed_as_nitrogen_in_non_refractory_pm1_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ebas_revision_date" value="2025-07-03T14:21:21.394057Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="uncertainty" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
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    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
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    <attribute name="ebas_station_altitude" value="162.0 m" />
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    <attribute name="ebas_method_ref" value="FR01L_Aerodyne_Q-ACSM_SIR" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
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    <attribute name="ebas_originator" value="&quot;Petit, Jean-Eudes, , , , , , , , , &quot;, &quot;Brochet, Juliette, juliette.brochet@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, CEA, CEA-Ormes des Merisiers, CEA-Ormes des Merisiers, 91191, Gif-sur-Yvette, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
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    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on import into EBAS from 'ug/m3' to 'ug N/m3', conversion factor 0.22590041." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlenitratemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle nitrate mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM1" />
    <attribute name="actris_matrix_preferred_term" value="PM1" />
    <attribute name="actris_constraints_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/non-refractory, https://vocabulary.actris.nilu.no/actris_vocab/expressedasnitrogen" />
    <attribute name="actris_constraints_preferred_term" value="non-refractory, expressed as nitrogen" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/particlemassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="particle mass spectrometer" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCA" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrate_ug_N_per_m3_uncertainty_d_Fraction" shape="d_Fraction_d0 qc_nitrate_ug_N_per_m3_uncertainty_d_Fraction_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_nitrate_ug_N_per_m3_uncertainty_d_Fraction" shape="d_Fraction_d0 metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_nitrate_ug_per_m3_uncertainty_d_Fraction" shape="d_Fraction_d0 time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrate_in_non_refractory_pm1_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_nitrate_ug_per_m3_uncertainty_d_Fraction meta_nitrate_ug_per_m3_uncertainty_d_Fraction" />
    <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="2025-07-03T14:21:21.394057Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="uncertainty" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
    <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.159" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrate" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm1_non_refractory" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="aerosol_mass_spectrometer" />
    <attribute name="ebas_instrument_name" value="Aerodyne_Q-ACSM_140-113" />
    <attribute name="ebas_instrument_manufacturer" value="Aerodyne" />
    <attribute name="ebas_instrument_model" value="Q-ACSM" />
    <attribute name="ebas_instrument_serial_number" value="140-113" />
    <attribute name="ebas_method_ref" value="FR01L_Aerodyne_Q-ACSM_SIR" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_inlet_description" value="Inlet cutpoint=PM1; Comment=" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Petit, Jean-Eudes, , , , , , , , , &quot;, &quot;Brochet, Juliette, juliette.brochet@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, CEA, CEA-Ormes des Merisiers, CEA-Ormes des Merisiers, 91191, Gif-sur-Yvette, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
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    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on import into EBAS from 'ug/m3' to 'ug N/m3', conversion factor 0.22590041. -- Data converted on export from EBAS from 'ug N/m3' to 'ug/m3', conversion factor 4.4267295." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlenitratemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle nitrate mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM1" />
    <attribute name="actris_matrix_preferred_term" value="PM1" />
    <attribute name="actris_constraints_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/non-refractory" />
    <attribute name="actris_constraints_preferred_term" value="non-refractory" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/particlemassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="particle mass spectrometer" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCA" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrate_ug_per_m3_uncertainty_d_Fraction" shape="d_Fraction_d0 qc_nitrate_ug_per_m3_uncertainty_d_Fraction_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_nitrate_ug_per_m3_uncertainty_d_Fraction" shape="d_Fraction_d0 metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_organic_mass_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_organic_mass_in_non_refractory_pm1_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_organic_mass_amean meta_organic_mass_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2025-07-03T14:21:21.394057Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
    <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.159" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="organic_mass" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm1_non_refractory" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="aerosol_mass_spectrometer" />
    <attribute name="ebas_instrument_name" value="Aerodyne_Q-ACSM_140-113" />
    <attribute name="ebas_instrument_manufacturer" value="Aerodyne" />
    <attribute name="ebas_instrument_model" value="Q-ACSM" />
    <attribute name="ebas_instrument_serial_number" value="140-113" />
    <attribute name="ebas_method_ref" value="FR01L_Aerodyne_Q-ACSM_SIR" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_inlet_description" value="Inlet cutpoint=PM1; Comment=" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.1 ug/m3" />
    <attribute name="ebas_measurement_uncertainty" value="0.2 ug/m3" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Petit, Jean-Eudes, , , , , , , , , &quot;, &quot;Brochet, Juliette, juliette.brochet@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, CEA, CEA-Ormes des Merisiers, CEA-Ormes des Merisiers, 91191, Gif-sur-Yvette, France&quot;" />
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    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticleorganicsmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle organics mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="PM1" />
    <attribute name="actris_constraints_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/non-refractory" />
    <attribute name="actris_constraints_preferred_term" value="non-refractory" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/particlemassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="particle mass spectrometer" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCA" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_organic_mass_amean" shape="qc_organic_mass_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_organic_mass_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_organic_mass_uncertainty" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_organic_mass_in_non_refractory_pm1_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_organic_mass_uncertainty meta_organic_mass_uncertainty" />
    <attribute name="cell_methods" value="time: uncertainty" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2025-07-03T14:21:21.394057Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="uncertainty" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="FR0020R" />
    <attribute name="ebas_platform_code" value="FR0020S" />
    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
    <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.159" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="organic_mass" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm1_non_refractory" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="aerosol_mass_spectrometer" />
    <attribute name="ebas_instrument_name" value="Aerodyne_Q-ACSM_140-113" />
    <attribute name="ebas_instrument_manufacturer" value="Aerodyne" />
    <attribute name="ebas_instrument_model" value="Q-ACSM" />
    <attribute name="ebas_instrument_serial_number" value="140-113" />
    <attribute name="ebas_method_ref" value="FR01L_Aerodyne_Q-ACSM_SIR" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_inlet_description" value="Inlet cutpoint=PM1; Comment=" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="FR01L, Laboratoire des Sciences du Climat et de l'Environnement, LSCE-CNRS-CEA, CEA Orme des Merisiers, Bat 701, , 91191, Gif-sur-Yvette, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, &quot;The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;" />
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    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
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    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
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    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticleorganicsmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle organics mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM1" />
    <attribute name="actris_matrix_preferred_term" value="PM1" />
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    <attribute name="actris_temporal_resolution" value="PT1H" />
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
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  <variable name="meta_organic_mass_uncertainty" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_organic_mass_amean_d_Fraction" shape="d_Fraction_d1 time" type="double">
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    <attribute name="standard_name" value="mass_concentration_of_organic_mass_in_non_refractory_pm1_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_organic_mass_amean_d_Fraction meta_organic_mass_amean_d_Fraction" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2025-07-03T14:21:21.394057Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
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    <attribute name="ebas_station_name" value="SIRTA Atmospheric Research Observatory" />
    <attribute name="ebas_station_gaw_name" value="SIRTA" />
    <attribute name="ebas_station_other_ids" value="0-250-1001-07151 (WIGOS)" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
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    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.159" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="organic_mass" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm1_non_refractory" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="aerosol_mass_spectrometer" />
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    <attribute name="ebas_method_ref" value="FR01L_Aerodyne_Q-ACSM_SIR" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
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    <attribute name="ebas_originator" value="&quot;Petit, Jean-Eudes, , , , , , , , , &quot;, &quot;Brochet, Juliette, juliette.brochet@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, CEA, CEA-Ormes des Merisiers, CEA-Ormes des Merisiers, 91191, Gif-sur-Yvette, France&quot;" />
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    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticleorganicsmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle organics mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM1" />
    <attribute name="actris_matrix_preferred_term" value="PM1" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_organic_mass_amean_d_Fraction" shape="d_Fraction_d1 qc_organic_mass_amean_d_Fraction_flags time" type="int">
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  <variable name="meta_organic_mass_amean_d_Fraction" shape="d_Fraction_d1 metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_organic_mass_uncertainty_d_Fraction" shape="d_Fraction_d1 time" type="double">
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    <attribute name="standard_name" value="mass_concentration_of_organic_mass_in_non_refractory_pm1_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="cell_methods" value="time: uncertainty" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="uncertainty" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="FR0020R" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
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    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
    <attribute name="ebas_station_longitude" type="double" value="2.1487" />
    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.159" />
    <attribute name="ebas_measurement_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_height" value="6.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="organic_mass" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm1_non_refractory" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="aerosol_mass_spectrometer" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_comment" value="No SOP currently available" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticleorganicsmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle organics mass concentration" />
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    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_organic_mass_uncertainty_d_Fraction" shape="d_Fraction_d1 qc_organic_mass_uncertainty_d_Fraction_flags time" type="int">
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  <variable name="meta_organic_mass_uncertainty_d_Fraction" shape="d_Fraction_d1 metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sulphate_expressed_as_sulphur_in_non_refractory_pm1_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
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    <attribute name="ebas_revision_date" value="2025-07-03T14:21:21.394057Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
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    <attribute name="ebas_sample_duration" value="1h" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_gaw_type" value="O" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
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    <attribute name="ebas_station_altitude" value="162.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="48.709" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sulphate_total" />
    <attribute name="ebas_unit" value="ug S/m3" />
    <attribute name="ebas_matrix" value="pm1_non_refractory" />
    <attribute name="ebas_laboratory_code" value="FR01L" />
    <attribute name="ebas_instrument_type" value="aerosol_mass_spectrometer" />
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    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_inlet_description" value="Inlet cutpoint=PM1; Comment=" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
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    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Petit, Jean-Eudes, , , , , , , , , &quot;, &quot;Brochet, Juliette, juliette.brochet@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, CEA, CEA-Ormes des Merisiers, CEA-Ormes des Merisiers, 91191, Gif-sur-Yvette, France&quot;" />
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    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on import into EBAS from 'ug/m3' to 'ug S/m3', conversion factor 0.33375808. Detection limit converted from '0.28 ug/m3' to '0.093452 ug S/m3', conversion factor 0.33375808." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlesulphatemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle sulphate mass concentration" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_sulphate_total_ug_per_m3_amean meta_sulphate_total_ug_per_m3_amean" />
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    <attribute name="ebas_version_description" value="initial revision" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
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    <attribute name="ebas_station_altitude" value="162.0 m" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
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    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on import into EBAS from 'ug/m3' to 'ug S/m3', conversion factor 0.33375808. Detection limit converted from '0.28 ug/m3' to '0.093452 ug S/m3', conversion factor 0.33375808. -- Data converted on export from EBAS from 'ug S/m3' to 'ug/m3', conversion factor 2.9961822. Detection limit converted from '0.093452 ug S/m3' to '0.28 ug/m3', conversion factor 2.9961822." />
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    <attribute name="actris_access_restriction" type="long" value="0" />
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    <attribute name="ebas_station_latitude" type="double" value="48.7089" />
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    <attribute name="ebas_originator" value="&quot;Petit, Jean-Eudes, , , , , , , , , &quot;, &quot;Brochet, Juliette, juliette.brochet@lsce.ipsl.fr, Laboratoire des Sciences du Climat et de l'Environnement, LSCE, CEA, CEA-Ormes des Merisiers, CEA-Ormes des Merisiers, 91191, Gif-sur-Yvette, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, GAW-WDCA. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="No SOP currently available -- Data converted on import into EBAS from 'ug/m3' to 'ug S/m3', conversion factor 0.33375808. -- Data converted on export from EBAS from 'ug S/m3' to 'ug/m3', conversion factor 2.9961822." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlesulphatemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle sulphate mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM1" />
    <attribute name="actris_matrix_preferred_term" value="PM1" />
    <attribute name="actris_constraints_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/non-refractory" />
    <attribute name="actris_constraints_preferred_term" value="non-refractory" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/particlemassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="particle mass spectrometer" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCA" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_sulphate_total_ug_per_m3_uncertainty" shape="qc_sulphate_total_ug_per_m3_uncertainty_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_sulphate_total_ug_per_m3_uncertainty" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="time" shape="time" type="double">
    <attribute name="long_name" value="time of measurement" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
  <variable name="metadata_time" shape="metadata_time" type="double">
    <attribute name="long_name" value="time of ebas metadata intervals" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
  <variable name="d_Location" shape="d_Location" type="String" />
  <variable name="d_Fraction_d0" shape="d_Fraction_d0" type="String" />
  <variable name="d_Fraction_d1" shape="d_Fraction_d1" type="String" />
</netcdf>
