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  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="OC/EC at Saint-Nazaire-le-Désert" />
  <attribute name="keywords" value="FR0023R, organic_carbon, pm25, mass_concentration_of_total_carbon_in_pm2p5_in_air, mass_concentration_of_elemental_carbon_in_pm2p5_in_air, Saint-Nazaire-le-Désert, elemental_carbon, EMEP, mass_concentration_of_organic_carbon_in_pm2p5_in_air, total_carbon" />
  <attribute name="id" value="8WTK-2JYR.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="EMEP" />
  <attribute name="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 framework: EMEP." />
  <attribute name="doi" value="https://doi.org/10.48597/8WTK-2JYR" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Sauvage, S., EMEP, 2019, OC/EC at Saint-Nazaire-le-Désert, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/8WTK-2JYR" />
  <attribute name="summary" value="OC/EC at Saint-Nazaire-le-Désert. These measurements are gathered as a part of the following projects EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: elemental_carbon in pm25 (mass_concentration_of_elemental_carbon_in_pm2p5_in_air), elemental_carbon in pm25 (mass_concentration_of_elemental_carbon_in_pm2p5_in_air), organic_carbon in pm25 (mass_concentration_of_organic_carbon_in_pm2p5_in_air), organic_carbon in pm25 (mass_concentration_of_organic_carbon_in_pm2p5_in_air), total_carbon in pm25 (mass_concentration_of_total_carbon_in_pm2p5_in_air), total_carbon in pm25 (mass_concentration_of_total_carbon_in_pm2p5_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="FR07L, Institut Mines Telecom Lille Douai, IMT Lille Douai, SAGE department, 941 rue Charles Bourseul, CS 10838, 59508, Douai, France" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2019-07-31T09:00:00 UTC" />
  <attribute name="date_metadata_modified" value="2019-07-31T09:00:00 UTC" />
  <attribute name="creator_name" value="Stephane Sauvage" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="" />
  <attribute name="creator_institution" value="" />
  <attribute name="contributor_name" value="Aude Bourin" />
  <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 (44.569444444 5.278972222 605.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
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  <attribute name="geospatial_vertical_min" type="double" value="605.0" />
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  <attribute name="time_coverage_start" value="2016-01-01T09:00:00 UTC" />
  <attribute name="time_coverage_end" value="2018-10-08T09:00:00 UTC" />
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  <attribute name="time_coverage_resolution" value="P0000-00-06T00:00:00" />
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  <attribute name="ebas_citation" value="Sauvage, S., EMEP, 2019, OC/EC at Saint-Nazaire-le-Désert, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/8WTK-2JYR" />
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  <attribute name="ebas_period_code" value="3y" />
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  <attribute name="ebas_station_longitude" value="5.278972222" />
  <attribute name="ebas_station_altitude" value="605.0 m" />
  <attribute name="ebas_measurement_height" value="3.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_unit" value="ug C/m3" />
  <attribute name="ebas_matrix" value="pm25" />
  <attribute name="ebas_laboratory_code" value="FR07L" />
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  <attribute name="ebas_instrument_name" value="Digitel_DA80_FR23" />
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  <attribute name="ebas_analytical_instrument_name" value="Inst275-73" />
  <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
  <attribute name="ebas_analytical_instrument_model" value="OCEC Lab Instrument Model 4L" />
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  <attribute name="ebas_inlet_description" value="DIGITEL DPM2,5/30/00 pre-separator constructed as a 1-stage impactor" />
  <attribute name="ebas_flow_rate" value="500.0 l/min" />
  <attribute name="ebas_filter_face_velocity" value="54.13 cm/s" />
  <attribute name="ebas_exposed_filter_area" value="153.94 cm2" />
  <attribute name="ebas_filter_description" value="2500 QAT-UP diameter 150mm" />
  <attribute name="ebas_medium" value="Quartz" />
  <attribute name="ebas_filter_prefiring" value="773.15 K, 24.0 h" />
  <attribute name="ebas_filter_conditioning" value="None" />
  <attribute name="ebas_artifact_correction" value="None" />
  <attribute name="ebas_charring_correction" value="By laser transmission" />
  <attribute name="ebas_volume_std_temperature" value="ambient" />
  <attribute name="ebas_volume_std_pressure" value="ambient" />
  <attribute name="ebas_detection_limit_expl" value="for TC and OC Quantification limit 3 times the method detection limit using 7 filters from same batch; for EC Detection limit assumed to be analytical dectection limit" />
  <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty calculation done by following the example proposed by J.P. Putaud" />
  <attribute name="ebas_qa1_measure_id" value="ECAC-OCEC-2016-2" />
  <attribute name="ebas_qa1_date" value="2016-10-01 UTC" />
  <attribute name="ebas_qa1_document_name" value="Results of the inter-laboratory comparison exercise for TC and EC measurements (ref.: OCEC-2016-2)" />
  <attribute name="ebas_qa1_document_url" value="http://www.actris-ecac.eu/files/OCEC-2016-2-REPORT.pdf" />
  <attribute name="ebas_organization" value="FR07L, Institut Mines Telecom Lille Douai, IMT Lille Douai, SAGE department, 941 rue Charles Bourseul, CS 10838, 59508, Douai, France" />
  <attribute name="ebas_framework_acronym" value="EMEP" />
  <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
  <attribute name="ebas_framework_description" value="The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
  <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
  <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
  <attribute name="ebas_originator" value="Sauvage, Stephane, , , , , , , , , " />
  <attribute name="ebas_submitter" value="Bourin, Aude, , , , , , , , , " />
  <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 framework: EMEP." />
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  <attribute name="Metadata_Conventions" value="Unidata Dataset Discovery v1.0" />
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  <attribute name="geospatial_lon_units" value="degrees_east" />
  <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;Sauvage, S., EMEP, 2019, OC/EC at Saint-Nazaire-le-Désert, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/8WTK-2JYR&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;8WTK-2JYR.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/8WTK-2JYR&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/8WTK-2JYR&quot;,&#xA;    &quot;File creation&quot;: &quot;2024-05-05T18:44:46.546480 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2020-06-22T11:41:43.503000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20160101090000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20190731090000&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Version description&quot;: &quot;initial revision, manually inspected&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;3y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;6d&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1d&quot;,&#xA;    &quot;Station code&quot;: &quot;FR0023R&quot;,&#xA;    &quot;Platform code&quot;: &quot;FR0023S&quot;,&#xA;    &quot;Station name&quot;: &quot;Saint-Nazaire-le-Désert&quot;,&#xA;    &quot;Station latitude&quot;: &quot;44.569444444&quot;,&#xA;    &quot;Station longitude&quot;: &quot;5.278972222&quot;,&#xA;    &quot;Station altitude&quot;: &quot;605.0 m&quot;,&#xA;    &quot;Measurement height&quot;: &quot;3.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Unit&quot;: &quot;ug C/m3&quot;,&#xA;    &quot;Matrix&quot;: &quot;pm25&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;FR07L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;high_vol_sampler&quot;,&#xA;    &quot;Instrument name&quot;: &quot;Digitel_DA80_FR23&quot;,&#xA;    &quot;Analytical laboratory code&quot;: &quot;FR12L&quot;,&#xA;    &quot;Analytical measurement technique&quot;: &quot;thermal-optical_analysis&quot;,&#xA;    &quot;Analytical instrument name&quot;: &quot;Inst275-73&quot;,&#xA;    &quot;Analytical instrument manufacturer&quot;: &quot;Sunset Laboratory&quot;,&#xA;    &quot;Analytical instrument model&quot;: &quot;OCEC Lab Instrument Model 4L&quot;,&#xA;    &quot;Method ref&quot;: &quot;FR12L_sunset_EUSAAR2&quot;,&#xA;    &quot;Standard method&quot;: &quot;SOP=EMEP_manual_v2014, TEMP=EUSAAR_2&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Impactor--direct&quot;,&#xA;    &quot;Inlet description&quot;: &quot;DIGITEL DPM2,5/30/00 pre-separator constructed as a 1-stage impactor&quot;,&#xA;    &quot;Flow rate&quot;: &quot;500.0 l/min&quot;,&#xA;    &quot;Filter face velocity&quot;: &quot;54.13 cm/s&quot;,&#xA;    &quot;Exposed filter area&quot;: &quot;153.94 cm2&quot;,&#xA;    &quot;Filter description&quot;: &quot;2500 QAT-UP diameter 150mm&quot;,&#xA;    &quot;Medium&quot;: &quot;Quartz&quot;,&#xA;    &quot;Filter prefiring&quot;: &quot;773.15 K, 24.0 h&quot;,&#xA;    &quot;Filter conditioning&quot;: &quot;None&quot;,&#xA;    &quot;Artifact correction&quot;: &quot;None&quot;,&#xA;    &quot;Charring correction&quot;: &quot;By laser transmission&quot;,&#xA;    &quot;Volume std. temperature&quot;: &quot;ambient&quot;,&#xA;    &quot;Volume std. pressure&quot;: &quot;ambient&quot;,&#xA;    &quot;Detection limit expl.&quot;: &quot;for TC and OC Quantification limit 3 times the method detection limit using 7 filters from same batch; for EC Detection limit assumed to be analytical dectection limit&quot;,&#xA;    &quot;Measurement uncertainty expl.&quot;: &quot;Measurement uncertainty calculation done by following the example proposed by J.P. Putaud&quot;,&#xA;    &quot;QA1 measure ID&quot;: &quot;ECAC-OCEC-2016-2&quot;,&#xA;    &quot;QA1 date&quot;: &quot;2016-10-01 UTC&quot;,&#xA;    &quot;QA1 document name&quot;: &quot;Results of the inter-laboratory comparison exercise for TC and EC measurements (ref.: OCEC-2016-2)&quot;,&#xA;    &quot;QA1 document URL&quot;: &quot;http://www.actris-ecac.eu/files/OCEC-2016-2-REPORT.pdf&quot;,&#xA;    &quot;Organization&quot;: &quot;FR07L, Institut Mines Telecom Lille Douai, IMT Lille Douai, SAGE department, 941 rue Charles Bourseul, CS 10838, 59508, Douai, France&quot;,&#xA;    &quot;Framework acronym&quot;: &quot;EMEP&quot;,&#xA;    &quot;Framework name&quot;: &quot;European Monitoring and Evaluation Programme&quot;,&#xA;    &quot;Framework description&quot;: &quot;The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems.&quot;,&#xA;    &quot;Framework contact name&quot;: &quot;Kjetil Tørseth&quot;,&#xA;    &quot;Framework contact email&quot;: &quot;kt@nilu.no&quot;,&#xA;    &quot;Originator&quot;: &quot;Sauvage, Stephane, , , , , , , , , &quot;,&#xA;    &quot;Submitter&quot;: &quot;Bourin, Aude, , , , , , , , , &quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;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 framework: EMEP.&quot;&#xA;}" />
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  <dimension name="time" length="175" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="5" />
  <dimension name="elemental_carbon_amean_qc_flags" length="2" />
  <dimension name="elemental_carbon_uncertainty_qc_flags" length="2" />
  <dimension name="organic_carbon_amean_qc_flags" length="3" />
  <dimension name="organic_carbon_uncertainty_qc_flags" length="3" />
  <dimension name="Fraction" length="5" />
  <dimension name="organic_carbon_amean_Fraction_qc_flags" length="3" />
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    <attribute name="units" value="ug C/m3" />
    <attribute name="ancillary_variables" value="elemental_carbon_uncertainty_qc elemental_carbon_uncertainty_ebasmetadata" />
    <attribute name="cell_methods" value="time: uncertainty" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20190731090000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="uncertainty" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_station_code" value="FR0023R" />
    <attribute name="ebas_platform_code" value="FR0023S" />
    <attribute name="ebas_station_name" value="Saint-Nazaire-le-Désert" />
    <attribute name="ebas_station_latitude" value="44.569444444" />
    <attribute name="ebas_station_longitude" value="5.278972222" />
    <attribute name="ebas_station_altitude" value="605.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="elemental_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="FR07L" />
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    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="DIGITEL DPM2,5/30/00 pre-separator constructed as a 1-stage impactor" />
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    <attribute name="ebas_filter_description" value="2500 QAT-UP diameter 150mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="773.15 K, 24.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_artifact_correction" value="None" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="for TC and OC Quantification limit 3 times the method detection limit using 7 filters from same batch; for EC Detection limit assumed to be analytical dectection limit" />
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    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
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    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
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  </variable>
  <variable name="elemental_carbon_uncertainty_qc" shape="elemental_carbon_uncertainty_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="elemental_carbon_uncertainty_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="organic_carbon_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_organic_carbon_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug C/m3" />
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    <attribute name="ebas_revision_date" value="20190731090000" />
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    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_station_code" value="FR0023R" />
    <attribute name="ebas_platform_code" value="FR0023S" />
    <attribute name="ebas_station_name" value="Saint-Nazaire-le-Désert" />
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    <attribute name="ebas_station_longitude" value="5.278972222" />
    <attribute name="ebas_station_altitude" value="605.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="organic_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm25" />
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    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="773.15 K, 24.0 h" />
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    <attribute name="ebas_artifact_correction" value="None" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
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  </variable>
  <variable name="organic_carbon_amean_qc" shape="organic_carbon_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
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  <variable name="organic_carbon_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="organic_carbon_uncertainty" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_organic_carbon_in_pm2p5_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_description" value="initial revision, manually inspected" />
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    <attribute name="ebas_station_code" value="FR0023R" />
    <attribute name="ebas_platform_code" value="FR0023S" />
    <attribute name="ebas_station_name" value="Saint-Nazaire-le-Désert" />
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    <attribute name="ebas_station_longitude" value="5.278972222" />
    <attribute name="ebas_station_altitude" value="605.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="organic_carbon" />
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    <attribute name="ebas_matrix" value="pm25" />
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    <attribute name="ebas_filter_prefiring" value="773.15 K, 24.0 h" />
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    <attribute name="ebas_charring_correction" value="By laser transmission" />
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  </variable>
  <variable name="organic_carbon_uncertainty_qc" shape="organic_carbon_uncertainty_qc_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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  <variable name="organic_carbon_amean_Fraction" shape="Fraction time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
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    <attribute name="ebas_station_name" value="Saint-Nazaire-le-Désert" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="organic_carbon" />
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    <attribute name="ebas_filter_prefiring" value="773.15 K, 24.0 h" />
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    <attribute name="ebas_charring_correction" value="By laser transmission" />
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  </variable>
  <variable name="organic_carbon_amean_Fraction_qc" shape="Fraction organic_carbon_amean_Fraction_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
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  </variable>
  <variable name="organic_carbon_amean_Fraction_ebasmetadata" shape="Fraction metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="total_carbon_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_total_carbon_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
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    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_station_longitude" value="5.278972222" />
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    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="total_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm25" />
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    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="773.15 K, 24.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_artifact_correction" value="None" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="for TC and OC Quantification limit 3 times the method detection limit using 7 filters from same batch; for EC Detection limit assumed to be analytical dectection limit" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty calculation done by following the example proposed by J.P. Putaud" />
    <attribute name="ebas_organization" value="FR07L, Institut Mines Telecom Lille Douai, IMT Lille Douai, SAGE department, 941 rue Charles Bourseul, CS 10838, 59508, Douai, France" />
    <attribute name="ebas_framework_acronym" value="EMEP" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_originator" value="Sauvage, Stephane, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Bourin, Aude, , , , , , , , , " />
    <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 framework: EMEP." />
  </variable>
  <variable name="total_carbon_amean_qc" shape="total_carbon_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="total_carbon_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="total_carbon_uncertainty" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_total_carbon_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug C/m3" />
    <attribute name="ancillary_variables" value="total_carbon_uncertainty_qc total_carbon_uncertainty_ebasmetadata" />
    <attribute name="cell_methods" value="time: uncertainty" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20190731090000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="uncertainty" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_station_code" value="FR0023R" />
    <attribute name="ebas_platform_code" value="FR0023S" />
    <attribute name="ebas_station_name" value="Saint-Nazaire-le-Désert" />
    <attribute name="ebas_station_latitude" value="44.569444444" />
    <attribute name="ebas_station_longitude" value="5.278972222" />
    <attribute name="ebas_station_altitude" value="605.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="total_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="FR07L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="Digitel_DA80_FR23" />
    <attribute name="ebas_analytical_laboratory_code" value="FR12L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="Inst275-73" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="OCEC Lab Instrument Model 4L" />
    <attribute name="ebas_method_ref" value="FR12L_sunset_EUSAAR2" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014, TEMP=EUSAAR_2" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="DIGITEL DPM2,5/30/00 pre-separator constructed as a 1-stage impactor" />
    <attribute name="ebas_flow_rate" value="500.0 l/min" />
    <attribute name="ebas_filter_face_velocity" value="54.13 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="153.94 cm2" />
    <attribute name="ebas_filter_description" value="2500 QAT-UP diameter 150mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="773.15 K, 24.0 h" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_artifact_correction" value="None" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="for TC and OC Quantification limit 3 times the method detection limit using 7 filters from same batch; for EC Detection limit assumed to be analytical dectection limit" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Measurement uncertainty calculation done by following the example proposed by J.P. Putaud" />
    <attribute name="ebas_organization" value="FR07L, Institut Mines Telecom Lille Douai, IMT Lille Douai, SAGE department, 941 rue Charles Bourseul, CS 10838, 59508, Douai, France" />
    <attribute name="ebas_framework_acronym" value="EMEP" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_originator" value="Sauvage, Stephane, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Bourin, Aude, , , , , , , , , " />
    <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 framework: EMEP." />
  </variable>
  <variable name="total_carbon_uncertainty_qc" shape="total_carbon_uncertainty_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="total_carbon_uncertainty_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="time" shape="time" type="double">
    <attribute name="long_name" value="time of measurement" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
  <variable name="metadata_time" shape="metadata_time" type="double">
    <attribute name="long_name" value="time of ebas metadata intervals" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
  <variable name="Fraction" shape="Fraction" type="String" />
</netcdf>
