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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 pp_DDT at Alert (CA0420G) using high_vol_sampler" />
  <attribute name="keywords" value="Alert, CA0420G, AMAP_public, AMAP, air+aerosol, pp_DDT" />
  <attribute name="id" value="G35X-PQTU.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="AMAP, AMAP_public" />
  <attribute name="acknowledgement" type="double" />
  <attribute name="doi" value="https://doi.org/10.48597/G35X-PQTU" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, pp_DDT - high_vol_sampler at Alert, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/G35X-PQTU" />
  <attribute name="summary" value="Ground based in situ observations of pp_DDT at Alert (CA0420G) using high_vol_sampler. These measurements are gathered as a part of the following projects AMAP, AMAP_public and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: pp_DDT in air+aerosol" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="CA01L, Environment Canada, EC/AES, Atmospheric Environmental Service, 4905 Dufferin Street, M3H 5T4, Downsview, Ontario, Canada" />
  <attribute name="date_created" value="2020-08-28T08:48:31 UTC" />
  <attribute name="date_metadata_modified" value="2020-08-28T08:48:31 UTC" />
  <attribute name="creator_name" value="Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley" />
  <attribute name="creator_type" value="person" />
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  <attribute name="contributor_name" value="Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley" />
  <attribute name="contributor_role" value="data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, data submitter, 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 (82.4991455078 -62.3415260315 210.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
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  <attribute name="time_coverage_start" value="1992-01-20T16:30:00 UTC" />
  <attribute name="time_coverage_end" value="2010-12-21T16:12:00 UTC" />
  <attribute name="time_coverage_duration" value="P0018-11-00T23:42:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-07T00:00:00" />
  <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="Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, pp_DDT - high_vol_sampler at Alert, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/G35X-PQTU" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="G35X-PQTU.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/G35X-PQTU" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/G35X-PQTU" />
  <attribute name="ebas_file_creation" value="2023-12-13T01:01:01.734861 UTC" />
  <attribute name="ebas_export_state" value="2018-05-08T09:27:18.460000 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="19920120163000" />
  <attribute name="ebas_revision_date" value="20200828084831" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_period_code" value="19y" />
  <attribute name="ebas_resolution_code" value="1w" />
  <attribute name="ebas_station_code" value="CA0420G" />
  <attribute name="ebas_platform_code" value="CA0420S" />
  <attribute name="ebas_station_name" value="Alert" />
  <attribute name="ebas_station_wdca_id" value="GAWACANUALT" />
  <attribute name="ebas_station_gaw_id" value="ALT" />
  <attribute name="ebas_station_gaw_name" value="Alert" />
  <attribute name="ebas_station_state_province" value="NU" />
  <attribute name="ebas_station_land_use" value="Military reservation" />
  <attribute name="ebas_station_setting" value="Polar" />
  <attribute name="ebas_station_gaw_type" value="G" />
  <attribute name="ebas_station_wmo_region" value="4" />
  <attribute name="ebas_station_latitude" value="82.4991455078" />
  <attribute name="ebas_station_longitude" value="-62.3415260315" />
  <attribute name="ebas_station_altitude" value="210.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_component" value="pp_DDT" />
  <attribute name="ebas_unit" value="pg/m3" />
  <attribute name="ebas_matrix" value="air+aerosol" />
  <attribute name="ebas_laboratory_code" value="CA01L" />
  <attribute name="ebas_instrument_type" value="high_vol_sampler" />
  <attribute name="ebas_instrument_name" value="HVS420" />
  <attribute name="ebas_method_ref" value="CA01L_POP_aerosol" />
  <attribute name="ebas_organization" value="CA01L, Environment Canada, EC/AES, Atmospheric Environmental Service, 4905 Dufferin Street, , M3H 5T4, &quot;Downsview, Ontario&quot;, Canada" />
  <attribute name="ebas_originator" value="Hayley, Hung, , , , , , , , , " />
  <attribute name="ebas_submitter" value="Hayley, Hung, , , , , , , , , " />
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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="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;Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, Hung Hayley, pp_DDT - high_vol_sampler at Alert, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/G35X-PQTU&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;G35X-PQTU.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/G35X-PQTU&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/G35X-PQTU&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-13T01:01:01.734861 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2018-05-08T09:27:18.460000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;19920120163000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20200828084831&quot;,&#xA;    &quot;Statistics&quot;: &quot;arithmetic mean&quot;,&#xA;    &quot;Period code&quot;: &quot;19y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1w&quot;,&#xA;    &quot;Station code&quot;: &quot;CA0420G&quot;,&#xA;    &quot;Platform code&quot;: &quot;CA0420S&quot;,&#xA;    &quot;Station name&quot;: &quot;Alert&quot;,&#xA;    &quot;Station WDCA-ID&quot;: &quot;GAWACANUALT&quot;,&#xA;    &quot;Station GAW-ID&quot;: &quot;ALT&quot;,&#xA;    &quot;Station GAW-Name&quot;: &quot;Alert&quot;,&#xA;    &quot;Station state/province&quot;: &quot;NU&quot;,&#xA;    &quot;Station land use&quot;: &quot;Military reservation&quot;,&#xA;    &quot;Station setting&quot;: &quot;Polar&quot;,&#xA;    &quot;Station GAW type&quot;: &quot;G&quot;,&#xA;    &quot;Station WMO region&quot;: &quot;4&quot;,&#xA;    &quot;Station latitude&quot;: &quot;82.4991455078&quot;,&#xA;    &quot;Station longitude&quot;: &quot;-62.3415260315&quot;,&#xA;    &quot;Station altitude&quot;: &quot;210.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Component&quot;: &quot;pp_DDT&quot;,&#xA;    &quot;Unit&quot;: &quot;pg/m3&quot;,&#xA;    &quot;Matrix&quot;: &quot;air+aerosol&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;CA01L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;high_vol_sampler&quot;,&#xA;    &quot;Instrument name&quot;: &quot;HVS420&quot;,&#xA;    &quot;Method ref&quot;: &quot;CA01L_POP_aerosol&quot;,&#xA;    &quot;Organization&quot;: &quot;CA01L, Environment Canada, EC/AES, Atmospheric Environmental Service, 4905 Dufferin Street, , M3H 5T4, \&quot;Downsview, Ontario\&quot;, Canada&quot;,&#xA;    &quot;Originator&quot;: &quot;Hayley, Hung, , , , , , , , , &quot;,&#xA;    &quot;Submitter&quot;: &quot;Hayley, Hung, , , , , , , , , &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="processing_level" value="processing_level_test" />
  <attribute name="_CoordSysBuilder" value="ucar.nc2.internal.dataset.conv.CF1Convention" />
  <dimension name="time" length="797" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="18" />
  <dimension name="pp_DDT_qc_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="1992-01-22T17:45:00Z" />
    <attribute name="time_coverage_end" value="2010-12-18T05:20:30Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="749431.0" />
    <attribute name="time_coverage_duration" value="P0Y0M6904DT11H35M30.000S" />
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  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-17" />
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    <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="pp_DDT" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_pp_dichlorodiphenyltrichloroethane_in_aerosol" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pg/m3" />
    <attribute name="ancillary_variables" value="pp_DDT_qc pp_DDT_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="20200828084831" />
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    <attribute name="ebas_station_gaw_name" value="Alert" />
    <attribute name="ebas_station_state_province" value="NU" />
    <attribute name="ebas_station_land_use" value="Military reservation" />
    <attribute name="ebas_station_setting" value="Polar" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="4" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="pp_DDT" />
    <attribute name="ebas_unit" value="pg/m3" />
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    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
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