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  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Ground based in situ observations of propane at Pico, Azores (PT0007R) using online_gc" />
  <attribute name="keywords" value="propane, PT0007R, air, GAW-WDCRG, Pico, Azores, mole_fraction_of_propane_in_air" />
  <attribute name="id" value="67YX-QDKK.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="GAW-WDCRG" />
  <attribute name="acknowledgement" value="Request acknowledgement details from data originator" />
  <attribute name="doi" value="https://doi.org/10.48597/67YX-QDKK" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Detlev Helmig, Jacques Hueber, propane - online_gc at Pico, Azores, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/67YX-QDKK" />
  <attribute name="summary" value="Ground based in situ observations of propane at Pico, Azores (PT0007R) using online_gc. These measurements are gathered as a part of the following projects GAW-WDCRG and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: propane in air (mole_fraction_of_propane_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="US13L, University of Colorado - INSTAAR, INSTAAR, Institute of Arctic and Alpine Research, 4001 Discovery Drive, Rm N202, CO 80303, Boulder, USA" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2020-10-13T00:00:00 UTC" />
  <attribute name="date_metadata_modified" value="2020-10-13T00:00:00 UTC" />
  <attribute name="creator_name" value="Detlev Helmig, Jacques Hueber" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="Detlev.Helmig@colorado.edu, Jacques.hueber@colorado.edu" />
  <attribute name="creator_institution" value="&quot;University of Colorado - INSTAAR, Institute of Arctic and Alpine Research, INSTAAR&quot;, &quot;Institute of Artic and Alpine Research, Atmospheric Research Lab, INSTAAR&quot;" />
  <attribute name="contributor_name" value="Detlev Helmig, Jacques Hueber" />
  <attribute name="contributor_role" value="data submitter, data submitter" />
  <attribute name="publisher_type" value="institution" />
  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_institution" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_email" value="ebas@nilu.no" />
  <attribute name="publisher_url" value="https://www.nilu.no/" />
  <attribute name="geospatial_bounds" value="POINT Z (38.467555555555556 -28.401722222222222 2225.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="38.467555555555556" />
  <attribute name="geospatial_lat_max" type="double" value="38.467555555555556" />
  <attribute name="geospatial_lon_min" type="double" value="-28.401722222222222" />
  <attribute name="geospatial_lon_max" type="double" value="-28.401722222222222" />
  <attribute name="geospatial_vertical_min" type="double" value="2225.0" />
  <attribute name="geospatial_vertical_max" type="double" value="2225.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2004-07-27T03:58:00 UTC" />
  <attribute name="time_coverage_end" value="2014-10-01T06:18:00 UTC" />
  <attribute name="time_coverage_duration" value="P0010-02-04T02:20:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-00T04:00:00" />
  <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="Detlev Helmig, Jacques Hueber, propane - online_gc at Pico, Azores, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/67YX-QDKK" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="67YX-QDKK.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/67YX-QDKK" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/67YX-QDKK" />
  <attribute name="ebas_file_creation" value="2023-12-08T12:41:12.341088 UTC" />
  <attribute name="ebas_export_state" value="2021-04-30T08:06:07.847000 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="20040727035800" />
  <attribute name="ebas_revision_date" value="20201013000000" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="10y" />
  <attribute name="ebas_resolution_code" value="4h" />
  <attribute name="ebas_sample_duration" value="30mn" />
  <attribute name="ebas_station_code" value="PT0007R" />
  <attribute name="ebas_platform_code" value="PT0007S" />
  <attribute name="ebas_station_name" value="Pico, Azores" />
  <attribute name="ebas_station_land_use" value="Gravel and stone" />
  <attribute name="ebas_station_setting" value="Mountain" />
  <attribute name="ebas_station_wmo_region" value="6" />
  <attribute name="ebas_station_latitude" value="38.467555555555556" />
  <attribute name="ebas_station_longitude" value="-28.401722222222222" />
  <attribute name="ebas_station_altitude" value="2225.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_component" value="propane" />
  <attribute name="ebas_unit" value="pmol/mol" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="US13L" />
  <attribute name="ebas_instrument_type" value="online_gc" />
  <attribute name="ebas_instrument_name" value="pco_online_gc" />
  <attribute name="ebas_method_ref" value="US13L_gc_fid" />
  <attribute name="ebas_organization" value="US13L, University of Colorado - INSTAAR, INSTAAR, Institute of Arctic and Alpine Research, &quot;4001 Discovery Drive, Rm N202&quot;, , CO 80303, Boulder, USA" />
  <attribute name="ebas_framework_acronym" value="GAW-WDCRG" />
  <attribute name="ebas_framework_name" value="World Data Centre for Reactive Gases" />
  <attribute name="ebas_framework_description" value="The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
  <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
  <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
  <attribute name="ebas_originator" value="Hueber, Jacques, Jacques.hueber@colorado.edu, Institute of Artic and Alpine Research, INSTAAR, Atmospheric Research Lab, 4001 Discovery Drive, , 80303, Boulder Colorado, United States" />
  <attribute name="ebas_submitter" value="Hueber, Jacques, Jacques.hueber@colorado.edu, Institute of Artic and Alpine Research, INSTAAR, Atmospheric Research Lab, 4001 Discovery Drive, , 80303, Boulder Colorado, United States" />
  <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  <attribute name="ebas_comment" value="Data imported from WDCGG" />
  <attribute name="_NCProperties" value="version=2,netcdf=4.9.0,hdf5=1.12.2" />
  <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="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;Detlev Helmig, Jacques Hueber, propane - online_gc at Pico, Azores, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/67YX-QDKK&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;67YX-QDKK.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/67YX-QDKK&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/67YX-QDKK&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-08T12:41:12.341088 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2021-04-30T08:06:07.847000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20040727035800&quot;,&#xA;    &quot;Revision date&quot;: &quot;20201013000000&quot;,&#xA;    &quot;Statistics&quot;: &quot;arithmetic mean&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;10y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;4h&quot;,&#xA;    &quot;Sample duration&quot;: &quot;30mn&quot;,&#xA;    &quot;Station code&quot;: &quot;PT0007R&quot;,&#xA;    &quot;Platform code&quot;: &quot;PT0007S&quot;,&#xA;    &quot;Station name&quot;: &quot;Pico, Azores&quot;,&#xA;    &quot;Station land use&quot;: &quot;Gravel and stone&quot;,&#xA;    &quot;Station setting&quot;: &quot;Mountain&quot;,&#xA;    &quot;Station WMO region&quot;: &quot;6&quot;,&#xA;    &quot;Station latitude&quot;: &quot;38.467555555555556&quot;,&#xA;    &quot;Station longitude&quot;: &quot;-28.401722222222222&quot;,&#xA;    &quot;Station altitude&quot;: &quot;2225.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Component&quot;: &quot;propane&quot;,&#xA;    &quot;Unit&quot;: &quot;pmol/mol&quot;,&#xA;    &quot;Matrix&quot;: &quot;air&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;US13L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;online_gc&quot;,&#xA;    &quot;Instrument name&quot;: &quot;pco_online_gc&quot;,&#xA;    &quot;Method ref&quot;: &quot;US13L_gc_fid&quot;,&#xA;    &quot;Organization&quot;: &quot;US13L, University of Colorado - INSTAAR, INSTAAR, Institute of Arctic and Alpine Research, \&quot;4001 Discovery Drive, Rm N202\&quot;, , CO 80303, Boulder, USA&quot;,&#xA;    &quot;Framework acronym&quot;: &quot;GAW-WDCRG&quot;,&#xA;    &quot;Framework name&quot;: &quot;World Data Centre for Reactive Gases&quot;,&#xA;    &quot;Framework description&quot;: &quot;The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&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;Hueber, Jacques, Jacques.hueber@colorado.edu, Institute of Artic and Alpine Research, INSTAAR, Atmospheric Research Lab, 4001 Discovery Drive, , 80303, Boulder Colorado, United States&quot;,&#xA;    &quot;Submitter&quot;: &quot;Hueber, Jacques, Jacques.hueber@colorado.edu, Institute of Artic and Alpine Research, INSTAAR, Atmospheric Research Lab, 4001 Discovery Drive, , 80303, Boulder Colorado, United States&quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;Request acknowledgement details from data originator&quot;,&#xA;    &quot;Comment&quot;: &quot;Data imported from WDCGG&quot;&#xA;}" />
  <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="4918" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <dimension name="propane_qc_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2004-07-27T04:13:00Z" />
    <attribute name="time_coverage_end" value="2014-10-01T06:03:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="65332.0" />
    <attribute name="time_coverage_duration" value="P0Y0M3718DT1H50M0.000S" />
  </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="propane" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="propane_qc propane_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20201013000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="30mn" />
    <attribute name="ebas_station_code" value="PT0007R" />
    <attribute name="ebas_platform_code" value="PT0007S" />
    <attribute name="ebas_station_name" value="Pico, Azores" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="38.467555555555556" />
    <attribute name="ebas_station_longitude" value="-28.401722222222222" />
    <attribute name="ebas_station_altitude" value="2225.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="US13L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="pco_online_gc" />
    <attribute name="ebas_method_ref" value="US13L_gc_fid" />
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    <attribute name="ebas_framework_acronym" value="GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
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    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_originator" value="Hueber, Jacques, Jacques.hueber@colorado.edu, Institute of Artic and Alpine Research, INSTAAR, Atmospheric Research Lab, 4001 Discovery Drive, , 80303, Boulder Colorado, United States" />
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    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data imported from WDCGG" />
  </variable>
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    <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="propane_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" />
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  <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" />
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    <attribute name="_CoordinateAxisType" value="Time" />
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