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  <attribute name="title" value="N-hexanal and VOC (carbonyls) at Peyrusse Vieille" />
  <attribute name="summary" value="N-hexanal and VOC (carbonyls) at Peyrusse Vieille. These measurements are gathered as a part of the following projects ACTRIS, EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ['2-methylpropenal in air (mass_concentration_of_2_methylpropenal_in_air)', '2-oxopropanal in air (mass_concentration_of_2_oxopropanal_in_air)', '2-propenal in air (mass_concentration_of_2_propenal_in_air)', '3-buten-2-one in air (mass_concentration_of_3_buten_2_one_in_air)', 'benzaldehyde in air (mass_concentration_of_benzaldehyde_in_air)', 'butanales in air (mass_concentration_of_sum_batanales_in_air)', 'butanone in air (mass_concentration_of_butanone_in_air)', 'ethanal in air (mass_concentration_of_ethanal_in_air)', 'ethanedial in air (mass_concentration_of_ethanedial_in_air)', 'methanal in air (mass_concentration_of_methanal_in_air)', 'n-hexanal in air (mass_concentration_of_hexanal_in_air)', 'propanal in air (mass_concentration_of_propanal_in_air)', 'propanone in air (mass_concentration_of_propanone_in_air)', 'valeraldehyde_o-tolualdehyde in air (mass_concentration_of_valeraldehyde_o_tolualdehyde_in_air)']" />
  <attribute name="keywords" value="&quot;Peyrusse Vieille&quot; FR0013R 2-methylpropenal 2-oxopropanal 2-propenal 3-buten-2-one benzaldehyde butanales butanone ethanal ethanedial methanal n-hexanal propanal propanone valeraldehyde_o-tolualdehyde air ACTRIS EMEP mass_concentration_of_2_methylpropenal_in_air mass_concentration_of_2_oxopropanal_in_air mass_concentration_of_2_propenal_in_air mass_concentration_of_3_buten_2_one_in_air mass_concentration_of_benzaldehyde_in_air mass_concentration_of_sum_batanales_in_air mass_concentration_of_butanone_in_air mass_concentration_of_ethanal_in_air mass_concentration_of_ethanedial_in_air mass_concentration_of_methanal_in_air mass_concentration_of_hexanal_in_air mass_concentration_of_propanal_in_air mass_concentration_of_propanone_in_air mass_concentration_of_valeraldehyde_o_tolualdehyde_in_air" />
  <attribute name="id" value="CKBU-AKTD.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, EMEP" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/CKBU-AKTD" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Sauvage, S., ACTRIS, EMEP, 2012, N-hexanal and VOC (carbonyls) at Peyrusse Vieille, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/CKBU-AKTD" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="FR07L &quot;Institut Mines Telecom Lille Douai&quot; &quot;IMT Lille Douai&quot; &quot;SAGE department&quot; &quot;941 rue Charles Bourseul&quot; &quot;CS 10838&quot; 59508 Douai France" />
  <attribute name="date_created" value="2014-05-01T00:00:00.000000Z" />
  <attribute name="date_metadata_modified" value="2012-07-29T00:00:00Z" />
  <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="Stephane Sauvage" />
  <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 (0.183333 43.616667 200)" />
  <attribute name="geospatial_lat_min" type="double" value="43.616667" />
  <attribute name="geospatial_lat_max" type="double" value="43.616667" />
  <attribute name="geospatial_lon_min" type="double" value="0.183333" />
  <attribute name="geospatial_lon_max" type="double" value="0.183333" />
  <attribute name="geospatial_vertical_min" type="double" value="200.0" />
  <attribute name="geospatial_vertical_max" type="double" value="200.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2011-01-04T12:00:00Z" />
  <attribute name="time_coverage_end" value="2011-12-25T16:00:00Z" />
  <attribute name="time_coverage_duration" value="P0000-11-21T04:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-01T00:00:00" />
  <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="Sauvage, S., ACTRIS, EMEP, 2012, N-hexanal and VOC (carbonyls) at Peyrusse Vieille, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/CKBU-AKTD" />
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  <attribute name="ebas_period_code" value="12mo" />
  <attribute name="ebas_resolution_code" value="1d" />
  <attribute name="ebas_station_code" value="FR0013R" />
  <attribute name="ebas_platform_code" value="FR0013S" />
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  <attribute name="ebas_station_altitude" value="200.0 m" />
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  <attribute name="ebas_unit" value="ug/m3" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="FR07L" />
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  <attribute name="ebas_instrument_name" value="FR13_DNPH_cartridge" />
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  <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="ACTRIS, EMEP" />
  <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme" />
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  <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
  <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
  <attribute name="ebas_originator" value="&quot;Sauvage, Stephane, , , , , , , , , &quot;" />
  <attribute name="ebas_submitter" value="&quot;Sauvage, Stephane, , , , , , , , , &quot;" />
  <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP." />
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  <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="processing_level" value="processing_level_test" />
  <attribute name="_CoordSysBuilder" value="ucar.nc2.internal.dataset.conv.CF1Convention" />
  <dimension name="time" length="52" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <dimension name="qc_2_methylpropenal_flags" length="3" />
  <dimension name="qc_2_oxopropanal_flags" length="3" />
  <dimension name="qc_2_propenal_flags" length="3" />
  <dimension name="qc_3_buten_2_one_flags" length="3" />
  <dimension name="qc_benzaldehyde_flags" length="3" />
  <dimension name="qc_butanales_flags" length="3" />
  <dimension name="qc_butanone_flags" length="3" />
  <dimension name="qc_ethanal_flags" length="3" />
  <dimension name="qc_ethanedial_flags" length="3" />
  <dimension name="qc_methanal_flags" length="3" />
  <dimension name="qc_n_hexanal_flags" length="3" />
  <dimension name="qc_propanal_flags" length="3" />
  <dimension name="qc_propanone_flags" length="3" />
  <dimension name="qc_valeraldehyde_o_tolualdehyde_flags" length="3" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2011-01-04T14:00:00Z" />
    <attribute name="time_coverage_end" value="2011-12-25T14:00:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="601411.0" />
    <attribute name="time_coverage_duration" value="P0Y0M355DT0H0M0.000S" />
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    <attribute name="metadata_creation" value="2026-05-17" />
    <attribute name="nciso_version" value="2.4.8" />
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    <attribute name="long_name" value="time bounds for measurement" />
  </variable>
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    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
  </variable>
  <variable name="v_2_methylpropenal" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_2_methylpropenal meta_2_methylpropenal" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_station_code" value="FR0013R" />
    <attribute name="ebas_platform_code" value="FR0013S" />
    <attribute name="ebas_station_name" value="Peyrusse Vieille" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylpropenal" />
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    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/methacroleinmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="methacrolein mass concentration" />
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    <attribute name="actris_instrument_type_preferred_term" value="adsorption tube" />
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    <attribute name="actris_temporal_resolution" value="P1D" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="ancillary_variables" value="qc_2_propenal meta_2_propenal" />
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    <attribute name="ebas_statistics" value="arithmetic mean" />
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    <attribute name="ebas_station_altitude" value="200.0 m" />
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    <attribute name="ebas_matrix" value="air" />
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    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/acroleinmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="acrolein mass concentration" />
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    <attribute name="units" value="1" />
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  <variable name="meta_2_propenal" 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_3_buten_2_one" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_3_buten_2_one_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <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="2012-07-29T00:00:00.000000Z" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_station_code" value="FR0013R" />
    <attribute name="ebas_platform_code" value="FR0013S" />
    <attribute name="ebas_station_name" value="Peyrusse Vieille" />
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    <attribute name="ebas_station_longitude" type="double" value="0.183333" />
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    <attribute name="ebas_component" value="3-buten-2-one" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR07L" />
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    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/methylvinylketonemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="methyl vinyl ketone mass concentration" />
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    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_3_buten_2_one" shape="qc_3_buten_2_one_flags time" type="int">
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    <attribute name="units" value="1" />
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  <variable name="meta_3_buten_2_one" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzaldehyde" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_benzaldehyde_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_benzaldehyde meta_benzaldehyde" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2012-07-29T00:00:00.000000Z" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_station_code" value="FR0013R" />
    <attribute name="ebas_platform_code" value="FR0013S" />
    <attribute name="ebas_station_name" value="Peyrusse Vieille" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzaldehyde" />
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    <attribute name="ebas_laboratory_code" value="FR07L" />
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    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzaldehydemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="benzaldehyde mass concentration" />
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    <attribute name="actris_access_restriction" type="long" value="0" />
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    <attribute name="units" value="1" />
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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_sum_batanales_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_statistics" value="arithmetic mean" />
    <attribute name="ebas_station_code" value="FR0013R" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="standard_name" value="mass_concentration_of_butanone_in_air" />
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    <attribute name="ebas_station_name" value="Peyrusse Vieille" />
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    <attribute name="actris_variable_preferred_term" value="methyl ethyl ketone 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_ethanal_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ancillary_variables" value="qc_ethanal meta_ethanal" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethanal" />
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    <attribute name="ebas_laboratory_code" value="FR07L" />
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    <attribute name="ebas_instrument_name" value="FR13_DNPH_cartridge" />
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    <attribute name="standard_name" value="mass_concentration_of_ethanedial_in_air" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="standard_name" value="mass_concentration_of_methanal_in_air" />
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    <attribute name="standard_name" value="mass_concentration_of_hexanal_in_air" />
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