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  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Ground based in situ observations of levoglucosan at Observatoire Perenne de l'Environnement (FR0022R) using low_vol_sampler" />
  <attribute name="keywords" value="GAW-WDCA, mass_concentration_of_levoglucosan_in_pm10_in_air, ACTRIS, FR0022R, pm10, levoglucosan, Observatoire Perenne de l'Environnement" />
  <attribute name="id" value="TWZ6-6Y4S.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, GAW-WDCA" />
  <attribute name="acknowledgement" value="For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
  <attribute name="doi" value="https://doi.org/10.48597/TWZ6-6Y4S" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Jean Luc Jaffrezo, Sebastien Conil, Vincent Lucaire, levoglucosan - low_vol_sampler at Observatoire Perenne de l'Environnement, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/TWZ6-6Y4S" />
  <attribute name="summary" value="Ground based in situ observations of levoglucosan at Observatoire Perenne de l'Environnement (FR0022R) using low_vol_sampler. 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: levoglucosan in pm10 (mass_concentration_of_levoglucosan_in_pm10_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="FR11L, Agence nationale pour la gestion des déchets radioactifs, Andra, 1/7 rue Jean Monnet, 92298, CHATENAY-MALABRY Cedex, France" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2017-01-04T09:11:40 UTC" />
  <attribute name="date_metadata_modified" value="2017-01-04T09:11:40 UTC" />
  <attribute name="creator_name" value="Jean Luc Jaffrezo, Sebastien Conil, Vincent Lucaire" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="Jean-Luc.Jaffrezo@univ-grenoble-alpes.fr, Sebastien.Conil@andra.fr, vincent.lucaire@ujf-grenoble.fr" />
  <attribute name="creator_institution" value="&quot;Laboratoire de Glaciologie et Geophysique de lEnvironnement, Laboratoire daerologie, LGGE&quot;, &quot;Observatoire Perenne de l'Environnement, Centre de Meuse/Haute-Marne, ANDRA/OPE&quot;, &quot;Laboratoire de Glaciologie et Geophysique de lEnvironnement, Laboratoire daerologie, LGGE&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="POINT Z (48.562 5.505 392.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
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  <attribute name="geospatial_lon_max" type="double" value="5.505" />
  <attribute name="geospatial_vertical_min" type="double" value="392.0" />
  <attribute name="geospatial_vertical_max" type="double" value="392.0" />
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  <attribute name="time_coverage_start" value="2011-11-22T09:00:00 UTC" />
  <attribute name="time_coverage_end" value="2011-12-26T09:00:00 UTC" />
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  <attribute name="time_coverage_resolution" value="P0000-00-07T00:00:00" />
  <attribute name="timezone" value="UTC" />
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  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Jean Luc Jaffrezo, Sebastien Conil, Vincent Lucaire, levoglucosan - low_vol_sampler at Observatoire Perenne de l'Environnement, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/TWZ6-6Y4S" />
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  <attribute name="ebas_file_creation" value="2023-12-08T19:02:19.730168 UTC" />
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  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="34d" />
  <attribute name="ebas_resolution_code" value="1w" />
  <attribute name="ebas_sample_duration" value="1w" />
  <attribute name="ebas_orig_time_res" value="1w" />
  <attribute name="ebas_station_code" value="FR0022R" />
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  <attribute name="ebas_station_land_use" value="Agricultural" />
  <attribute name="ebas_station_setting" value="Rural" />
  <attribute name="ebas_station_wmo_region" value="6" />
  <attribute name="ebas_station_latitude" value="48.562222222222225" />
  <attribute name="ebas_station_longitude" value="5.5055555555555555" />
  <attribute name="ebas_station_altitude" value="392.0 m" />
  <attribute name="ebas_measuremenet_latitude" value="48.562" />
  <attribute name="ebas_measurement_longitude" value="5.505" />
  <attribute name="ebas_measurement_altitude" value="392.0 m" />
  <attribute name="ebas_measurement_height" value="4.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_component" value="levoglucosan" />
  <attribute name="ebas_unit" value="ng/m3" />
  <attribute name="ebas_matrix" value="pm10" />
  <attribute name="ebas_laboratory_code" value="FR11L" />
  <attribute name="ebas_instrument_type" value="low_vol_sampler" />
  <attribute name="ebas_instrument_name" value="Thermo_Partisol_OPE_ambient" />
  <attribute name="ebas_instrument_manufacturer" value="Thermo" />
  <attribute name="ebas_instrument_model" value="Partisol2025" />
  <attribute name="ebas_instrument_serial_number" value="2025B226591006" />
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  <attribute name="ebas_analytical_instrument_name" value="LGGE_ICS5000-1" />
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  <attribute name="ebas_analytical_instrument_serial_number" value="15123212" />
  <attribute name="ebas_method_ref" value="FR11L_low_vol_sampler_Thermo_Partisol_lvl2" />
  <attribute name="ebas_inlet_type" value="Hat or hood" />
  <attribute name="ebas_inlet_description" value="PM10 size cut-off" />
  <attribute name="ebas_flow_rate" value="16.6666666667 l/min" />
  <attribute name="ebas_filter_face_velocity" value="47.0 cm/s" />
  <attribute name="ebas_exposed_filter_area" value="11.34 cm2" />
  <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 47mm" />
  <attribute name="ebas_medium" value="Quartz" />
  <attribute name="ebas_filter_prefiring" value="773.15 K, 8.0 h" />
  <attribute name="ebas_sample_preparation" value="Water extraction" />
  <attribute name="ebas_blank_correction" value="Blank corrected" />
  <attribute name="ebas_artifact_correction" value="None" />
  <attribute name="ebas_charring_correction" value="None" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head" />
  <attribute name="ebas_volume_std_temperature" value="273.15 K" />
  <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
  <attribute name="ebas_detection_limit" value="0.96 ng/m3" />
  <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
  <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
  <attribute name="ebas_zero_negative_values" value="Zero values reported as measured if within detection limit, flagged with 147" />
  <attribute name="ebas_organization" value="FR11L, Agence nationale pour la gestion des déchets radioactifs, Andra, , 1/7 rue Jean Monnet, , 92298, CHATENAY-MALABRY Cedex, France" />
  <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
  <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols" />
  <attribute name="ebas_framework_description" value="ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
  <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
  <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
  <attribute name="ebas_originator" value="Lucaire, Vincent, vincent.lucaire@ujf-grenoble.fr, Laboratoire de Glaciologie et Geophysique de lEnvironnement, LGGE, Laboratoire daerologie, Chimie Atmospherique Neige et Glace, 54 rue Moliere BP 96, F-38402, Saint-Martin dHeres cedex, France" />
  <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
  <attribute name="ebas_acknowledgement" value="For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
  <attribute name="ebas_comment" value="None" />
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  <attribute name="comment" value="{&#xA;    &quot;Data definition&quot;: &quot;EBAS_1.1&quot;,&#xA;    &quot;Data license&quot;: &quot;https://creativecommons.org/licenses/by/4.0/&quot;,&#xA;    &quot;Citation&quot;: &quot;Jean Luc Jaffrezo, Sebastien Conil, Vincent Lucaire, levoglucosan - low_vol_sampler at Observatoire Perenne de l'Environnement, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/TWZ6-6Y4S&quot;,&#xA;    &quot;Set type code&quot;: &quot;TU&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;TWZ6-6Y4S.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/TWZ6-6Y4S&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/TWZ6-6Y4S&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-08T19:02:19.730168 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2021-02-17T10:53:39.923000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20111122090000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20170104091140&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Version description&quot;: &quot;initial revision, manually inspected&quot;,&#xA;    &quot;Statistics&quot;: &quot;arithmetic mean&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;34d&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1w&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1w&quot;,&#xA;    &quot;Orig. time res.&quot;: &quot;1w&quot;,&#xA;    &quot;Station code&quot;: &quot;FR0022R&quot;,&#xA;    &quot;Platform code&quot;: &quot;FR0022S&quot;,&#xA;    &quot;Station name&quot;: &quot;Observatoire Perenne de l'Environnement&quot;,&#xA;    &quot;Station GAW-ID&quot;: &quot;OPE&quot;,&#xA;    &quot;Station land use&quot;: &quot;Agricultural&quot;,&#xA;    &quot;Station setting&quot;: &quot;Rural&quot;,&#xA;    &quot;Station WMO region&quot;: &quot;6&quot;,&#xA;    &quot;Station latitude&quot;: &quot;48.562222222222225&quot;,&#xA;    &quot;Station longitude&quot;: &quot;5.5055555555555555&quot;,&#xA;    &quot;Station altitude&quot;: &quot;392.0 m&quot;,&#xA;    &quot;Measurement latitude&quot;: &quot;48.562&quot;,&#xA;    &quot;Measurement longitude&quot;: &quot;5.505&quot;,&#xA;    &quot;Measurement altitude&quot;: &quot;392.0 m&quot;,&#xA;    &quot;Measurement height&quot;: &quot;4.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Component&quot;: &quot;levoglucosan&quot;,&#xA;    &quot;Unit&quot;: &quot;ng/m3&quot;,&#xA;    &quot;Matrix&quot;: &quot;pm10&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;FR11L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;low_vol_sampler&quot;,&#xA;    &quot;Instrument name&quot;: &quot;Thermo_Partisol_OPE_ambient&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;Thermo&quot;,&#xA;    &quot;Instrument model&quot;: &quot;Partisol2025&quot;,&#xA;    &quot;Instrument serial number&quot;: &quot;2025B226591006&quot;,&#xA;    &quot;Analytical laboratory code&quot;: &quot;FR11L&quot;,&#xA;    &quot;Analytical measurement technique&quot;: &quot;IC&quot;,&#xA;    &quot;Analytical instrument name&quot;: &quot;LGGE_ICS5000-1&quot;,&#xA;    &quot;Analytical instrument manufacturer&quot;: &quot;Thermo Scientific&quot;,&#xA;    &quot;Analytical instrument model&quot;: &quot;ICS-5000&quot;,&#xA;    &quot;Analytical instrument serial number&quot;: &quot;15123212&quot;,&#xA;    &quot;Method ref&quot;: &quot;FR11L_low_vol_sampler_Thermo_Partisol_lvl2&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Hat or hood&quot;,&#xA;    &quot;Inlet description&quot;: &quot;PM10 size cut-off&quot;,&#xA;    &quot;Flow rate&quot;: &quot;16.6666666667 l/min&quot;,&#xA;    &quot;Filter face velocity&quot;: &quot;47.0 cm/s&quot;,&#xA;    &quot;Exposed filter area&quot;: &quot;11.34 cm2&quot;,&#xA;    &quot;Filter description&quot;: &quot;Tissuquartz 2500 QAT-UP 47mm&quot;,&#xA;    &quot;Medium&quot;: &quot;Quartz&quot;,&#xA;    &quot;Filter prefiring&quot;: &quot;773.15 K, 8.0 h&quot;,&#xA;    &quot;Sample preparation&quot;: &quot;Water extraction&quot;,&#xA;    &quot;Blank correction&quot;: &quot;Blank corrected&quot;,&#xA;    &quot;Artifact correction&quot;: &quot;None&quot;,&#xA;    &quot;Charring correction&quot;: &quot;None&quot;,&#xA;    &quot;Humidity/temperature control&quot;: &quot;None&quot;,&#xA;    &quot;Humidity/temperature control description&quot;: &quot;filter kept at ambient conditions together with sampling head&quot;,&#xA;    &quot;Volume std. temperature&quot;: &quot;273.15 K&quot;,&#xA;    &quot;Volume std. pressure&quot;: &quot;1013.25 hPa&quot;,&#xA;    &quot;Detection limit&quot;: &quot;0.96 ng/m3&quot;,&#xA;    &quot;Detection limit expl.&quot;: &quot;Determined by taking 3 times standard deviation of ensemble of field blanks&quot;,&#xA;    &quot;Zero/negative values code&quot;: &quot;Zero possible&quot;,&#xA;    &quot;Zero/negative values&quot;: &quot;Zero values reported as measured if within detection limit, flagged with 147&quot;,&#xA;    &quot;Organization&quot;: &quot;FR11L, Agence nationale pour la gestion des déchets radioactifs, Andra, , 1/7 rue Jean Monnet, , 92298, CHATENAY-MALABRY Cedex, France&quot;,&#xA;    &quot;Framework acronym&quot;: &quot;ACTRIS, GAW-WDCA&quot;,&#xA;    &quot;Framework name&quot;: &quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols&quot;,&#xA;    &quot;Framework description&quot;: &quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;,&#xA;    &quot;Framework contact name&quot;: &quot;Cathrine Lund Myhre, Markus Fiebig&quot;,&#xA;    &quot;Framework contact email&quot;: &quot;clm@nilu.no, Markus.Fiebig@nilu.no&quot;,&#xA;    &quot;Originator&quot;: &quot;Lucaire, Vincent, vincent.lucaire@ujf-grenoble.fr, Laboratoire de Glaciologie et Geophysique de lEnvironnement, LGGE, Laboratoire daerologie, Chimie Atmospherique Neige et Glace, 54 rue Moliere BP 96, F-38402, Saint-Martin dHeres cedex, France&quot;,&#xA;    &quot;Submitter&quot;: &quot;Pascal, Nicolas, , , , , , , , , &quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment&quot;,&#xA;    &quot;Comment&quot;: &quot;None&quot;&#xA;}" />
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    <attribute name="ebas_filter_description" value="Tissuquartz 2500 QAT-UP 47mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="773.15 K, 8.0 h" />
    <attribute name="ebas_sample_preparation" value="Water extraction" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_artifact_correction" value="None" />
    <attribute name="ebas_charring_correction" value="None" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.96 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values reported as measured if within detection limit, flagged with 147" />
    <attribute name="ebas_organization" value="FR11L, Agence nationale pour la gestion des déchets radioactifs, Andra, , 1/7 rue Jean Monnet, , 92298, CHATENAY-MALABRY Cedex, France" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="Lucaire, Vincent, vincent.lucaire@ujf-grenoble.fr, Laboratoire de Glaciologie et Geophysique de lEnvironnement, LGGE, Laboratoire daerologie, Chimie Atmospherique Neige et Glace, 54 rue Moliere BP 96, F-38402, Saint-Martin dHeres cedex, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <attribute name="ebas_acknowledgement" value="For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="None" />
  </variable>
  <variable name="levoglucosan_qc" shape="levoglucosan_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="levoglucosan_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="time" shape="time" type="double">
    <attribute name="long_name" value="time of measurement" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
  <variable name="metadata_time" shape="metadata_time" type="double">
    <attribute name="long_name" value="time of ebas metadata intervals" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
