<?xml version="1.0" encoding="UTF-8"?>
<netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2" location="Not provided because of security concerns.">
  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Heavy metals and inorganics in air and particle phase at Gates of the Arctic National Park" />
  <attribute name="summary" value="Heavy metals and inorganics in air and particle phase at Gates of the Arctic National Park. These measurements are gathered as a part of the following projects AMAP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ['acidity in aerosol', 'aluminium in aerosol (mass_concentration_of_aluminium_in_dry_aerosol_particles_in_air)', 'arsenic in aerosol (mass_concentration_of_arsenic_in_dry_aerosol_particles_in_air)', 'calcium in aerosol (mass_concentration_of_calcium_in_dry_aerosol_particles_in_air)', 'chloride in aerosol (mass_concentration_of_chloride_in_dry_aerosol_particles_in_air)', 'chromium in aerosol (mass_concentration_of_chromium_in_dry_aerosol_particles_in_air)', 'copper in aerosol (mass_concentration_of_copper_in_dry_aerosol_particles_in_air)', 'iron in aerosol (mass_concentration_of_iron_in_dry_aerosol_particles_in_air)', 'lead in aerosol (mass_concentration_of_lead_in_dry_aerosol_particles_in_air)', 'magnesium in aerosol (mass_concentration_of_magnesium_in_dry_aerosol_particles_in_air)', 'manganese in aerosol (mass_concentration_of_manganese_in_dry_aerosol_particles_in_air)', 'nickel in aerosol (mass_concentration_of_nickel_in_dry_aerosol_particles_in_air)', 'selenium in aerosol (mass_concentration_of_selenium_in_dry_aerosol_particles_in_air)', 'sodium in aerosol (mass_concentration_of_sodium_in_dry_aerosol_particles_in_air)', 'vanadium in aerosol (mass_concentration_of_vanadium_in_dry_aerosol_particles_in_air)', 'zinc in aerosol (mass_concentration_of_zinc_in_dry_aerosol_particles_in_air)']" />
  <attribute name="keywords" value="&quot;Gates of the Arctic National Park&quot; US0003R acidity aluminium arsenic calcium chloride chromium copper iron lead magnesium manganese nickel selenium sodium vanadium zinc aerosol AMAP mass_concentration_of_aluminium_in_dry_aerosol_particles_in_air mass_concentration_of_arsenic_in_dry_aerosol_particles_in_air mass_concentration_of_calcium_in_dry_aerosol_particles_in_air mass_concentration_of_chloride_in_dry_aerosol_particles_in_air mass_concentration_of_chromium_in_dry_aerosol_particles_in_air mass_concentration_of_copper_in_dry_aerosol_particles_in_air mass_concentration_of_iron_in_dry_aerosol_particles_in_air mass_concentration_of_lead_in_dry_aerosol_particles_in_air mass_concentration_of_magnesium_in_dry_aerosol_particles_in_air mass_concentration_of_manganese_in_dry_aerosol_particles_in_air mass_concentration_of_nickel_in_dry_aerosol_particles_in_air mass_concentration_of_selenium_in_dry_aerosol_particles_in_air mass_concentration_of_sodium_in_dry_aerosol_particles_in_air mass_concentration_of_vanadium_in_dry_aerosol_particles_in_air mass_concentration_of_zinc_in_dry_aerosol_particles_in_air" />
  <attribute name="id" value="R7NF-CGE6.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="AMAP" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/R7NF-CGE6" />
  <attribute name="license" value="Various, see detailed metadata" />
  <attribute name="citation" value="Polisaar, A., AMAP, 2000, Heavy metals and inorganics in air and particle phase at Gates of the Arctic National Park, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/R7NF-CGE6" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="US01L USAlab" />
  <attribute name="date_created" value="2014-05-01T00:00:00.000000Z" />
  <attribute name="date_metadata_modified" value="2000-03-15T00:00:00Z" />
  <attribute name="creator_name" value="Alexander V. Polisaar" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="" />
  <attribute name="creator_institution" value="" />
  <attribute name="contributor_name" value="Alexander V. Polisaar" />
  <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 (-151.516667 66.9 196)" />
  <attribute name="geospatial_lat_min" type="double" value="66.9" />
  <attribute name="geospatial_lat_max" type="double" value="66.9" />
  <attribute name="geospatial_lon_min" type="double" value="-151.516667" />
  <attribute name="geospatial_lon_max" type="double" value="-151.516667" />
  <attribute name="geospatial_vertical_min" type="double" value="196.0" />
  <attribute name="geospatial_vertical_max" type="double" value="196.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="1987-06-17T08:00:00Z" />
  <attribute name="time_coverage_end" value="1993-06-20T08:00:00Z" />
  <attribute name="time_coverage_duration" value="P0006-00-03T00:00:00" />
  <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="" />
  <attribute name="ebas_citation" value="Polisaar, A., AMAP, 2000, Heavy metals and inorganics in air and particle phase at Gates of the Arctic National Park, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/R7NF-CGE6" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="R7NF-CGE6.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/R7NF-CGE6" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/R7NF-CGE6" />
  <attribute name="ebas_file_creation" value="2026-05-15T15:15:18.374771Z" />
  <attribute name="ebas_export_state" value="2014-05-01T00:00:00.000000Z" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="1987-06-17T08:00:00.000000Z" />
  <attribute name="ebas_revision_date" value="2000-03-15T00:00:00.000000Z" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_period_code" value="6y" />
  <attribute name="ebas_resolution_code" value="1d" />
  <attribute name="ebas_station_code" value="US0003R" />
  <attribute name="ebas_platform_code" value="US0003S" />
  <attribute name="ebas_station_name" value="Gates of the Arctic National Park" />
  <attribute name="ebas_station_latitude" type="double" value="66.9" />
  <attribute name="ebas_station_longitude" type="double" value="-151.516667" />
  <attribute name="ebas_station_altitude" value="196.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="aerosol" />
  <attribute name="ebas_laboratory_code" value="US01L" />
  <attribute name="ebas_instrument_type" value="impactor" />
  <attribute name="ebas_instrument_name" value="GAAR" />
  <attribute name="ebas_method_ref" value="US01L_PIXE_aerosol2_5" />
  <attribute name="ebas_organization" value="US01L, USAlab, , , , , , , " />
  <attribute name="ebas_framework_acronym" value="AMAP" />
  <attribute name="ebas_framework_name" value="" />
  <attribute name="ebas_framework_description" value="" />
  <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
  <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
  <attribute name="ebas_originator" value="&quot;Polisaar, Alexander V., , , , , , , , , &quot;" />
  <attribute name="ebas_submitter" value="&quot;Polisaar, Alexander V., , , , , , , , , &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 framework: AMAP." />
  <attribute name="_NCProperties" value="version=2,netcdf=4.9.3,hdf5=1.14.6" />
  <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="416" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="7" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="1987-06-18T20:00:00Z" />
    <attribute name="time_coverage_end" value="1993-06-18T08:00:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="456254.0" />
    <attribute name="time_coverage_duration" value="P0Y0M2191DT12H0M0.000S" />
  </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="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 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <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 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
