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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 mercury_GEM at Troll (NO0058G) using Hg_mon" />
  <attribute name="keywords" value="mass_concentration_of_gaseous_elemental_mercury_in_air, Troll, air, NO0058G, NILU, mercury_GEM" />
  <attribute name="id" value="VRBV-SZBR.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="NILU" />
  <attribute name="acknowledgement" type="double" />
  <attribute name="doi" value="https://doi.org/10.48597/VRBV-SZBR" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, mercury_GEM - Hg_mon at Troll, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/VRBV-SZBR" />
  <attribute name="summary" value="Ground based in situ observations of mercury_GEM at Troll (NO0058G) using Hg_mon. These measurements are gathered as a part of the following projects NILU and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: mercury_GEM in air (mass_concentration_of_gaseous_elemental_mercury_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="NO01L, Norwegian Institute for Air Research, NILU, Instituttveien 18, 2007, Kjeller, Norway" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2022-11-22T11:17:37 UTC" />
  <attribute name="date_metadata_modified" value="2022-11-22T11:17:37 UTC" />
  <attribute name="creator_name" value="Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value=", , , , , , , " />
  <attribute name="creator_institution" value="&quot;Norwegian Institute for Air Research, Atmosphere and Climate Department, NILU&quot;, &quot;Norwegian Institute for Air Research, Atmosphere and Climate Department, NILU&quot;, &quot;Norwegian Institute for Air Research, Atmosphere and Climate Department, NILU&quot;, &quot;Norwegian Institute for Air Research, Atmosphere and Climate Department, NILU&quot;, &quot;Norwegian Institute for Air Research, Atmosphere and Climate Department, NILU&quot;, &quot;Norwegian Institute for Air Research, Atmosphere and Climate Department, NILU&quot;, &quot;Norwegian Institute for Air Research, Atmosphere and Climate Department, NILU&quot;, &quot;Norwegian Institute for Air Research, Atmosphere and Climate Department, NILU&quot;" />
  <attribute name="contributor_name" value="Katrine Aspmo, Anne Hjellbrekke, Katrine Aspmo, Anne Hjellbrekke, Katrine Aspmo, Anne Hjellbrekke, Katrine Aspmo, Anne Hjellbrekke, Katrine Aspmo, Anne Hjellbrekke, Katrine Aspmo, Anne Hjellbrekke, Katrine Aspmo, Anne Hjellbrekke, Katrine Aspmo, Anne Hjellbrekke" />
  <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" />
  <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 (-72.016667 2.533333 1309.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="-72.016667" />
  <attribute name="geospatial_lat_max" type="double" value="-72.016667" />
  <attribute name="geospatial_lon_min" type="double" value="2.533333" />
  <attribute name="geospatial_lon_max" type="double" value="2.533333" />
  <attribute name="geospatial_vertical_min" type="double" value="1309.0" />
  <attribute name="geospatial_vertical_max" type="double" value="1309.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2007-02-11T19:00:00 UTC" />
  <attribute name="time_coverage_end" value="2015-01-01T00:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0007-10-20T05:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-00T01:00:00" />
  <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="Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, mercury_GEM - Hg_mon at Troll, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/VRBV-SZBR" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="VRBV-SZBR.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/VRBV-SZBR" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/VRBV-SZBR" />
  <attribute name="ebas_file_creation" value="2023-12-11T15:24:56.005244 UTC" />
  <attribute name="ebas_export_state" value="2022-11-22T11:17:37.152478 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="20070211190000" />
  <attribute name="ebas_revision_date" value="20221122111737" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="8y" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_station_code" value="NO0058G" />
  <attribute name="ebas_platform_code" value="NO0058S" />
  <attribute name="ebas_station_name" value="Troll" />
  <attribute name="ebas_station_land_use" value="Snowfield" />
  <attribute name="ebas_station_setting" value="Polar" />
  <attribute name="ebas_station_latitude" value="-72.016667" />
  <attribute name="ebas_station_longitude" value="2.533333" />
  <attribute name="ebas_station_altitude" value="1309.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_component" value="mercury_GEM" />
  <attribute name="ebas_unit" value="ng/m3" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="NO01L" />
  <attribute name="ebas_instrument_type" value="Hg_mon" />
  <attribute name="ebas_instrument_name" value="tekran_58" />
  <attribute name="ebas_instrument_manufacturer" value="Tekran" />
  <attribute name="ebas_instrument_model" value="2537A" />
  <attribute name="ebas_method_ref" value="NO01L_cvafs" />
  <attribute name="ebas_organization" value="NO01L, Norwegian Institute for Air Research, NILU, , Instituttveien 18, , 2007, Kjeller, Norway" />
  <attribute name="ebas_framework_acronym" value="NILU" />
  <attribute name="ebas_framework_name" value="Norwegian Institute for Air Research" />
  <attribute name="ebas_framework_description" value="Atmospheric measuremnts produced at NILU." />
  <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
  <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
  <attribute name="ebas_originator" value="Aspmo, Katrine, , Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway" />
  <attribute name="ebas_submitter" value="Hjellbrekke, Anne, agh@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway" />
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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;Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, Katrine Aspmo, mercury_GEM - Hg_mon at Troll, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/VRBV-SZBR&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;VRBV-SZBR.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/VRBV-SZBR&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/VRBV-SZBR&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-11T15:24:56.005244 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2022-11-22T11:17:37.152478 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20070211190000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20221122111737&quot;,&#xA;    &quot;Statistics&quot;: &quot;arithmetic mean&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;8y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1h&quot;,&#xA;    &quot;Station code&quot;: &quot;NO0058G&quot;,&#xA;    &quot;Platform code&quot;: &quot;NO0058S&quot;,&#xA;    &quot;Station name&quot;: &quot;Troll&quot;,&#xA;    &quot;Station land use&quot;: &quot;Snowfield&quot;,&#xA;    &quot;Station setting&quot;: &quot;Polar&quot;,&#xA;    &quot;Station latitude&quot;: &quot;-72.016667&quot;,&#xA;    &quot;Station longitude&quot;: &quot;2.533333&quot;,&#xA;    &quot;Station altitude&quot;: &quot;1309.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Component&quot;: &quot;mercury_GEM&quot;,&#xA;    &quot;Unit&quot;: &quot;ng/m3&quot;,&#xA;    &quot;Matrix&quot;: &quot;air&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;NO01L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;Hg_mon&quot;,&#xA;    &quot;Instrument name&quot;: &quot;tekran_58&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;Tekran&quot;,&#xA;    &quot;Instrument model&quot;: &quot;2537A&quot;,&#xA;    &quot;Method ref&quot;: &quot;NO01L_cvafs&quot;,&#xA;    &quot;Organization&quot;: &quot;NO01L, Norwegian Institute for Air Research, NILU, , Instituttveien 18, , 2007, Kjeller, Norway&quot;,&#xA;    &quot;Framework acronym&quot;: &quot;NILU&quot;,&#xA;    &quot;Framework name&quot;: &quot;Norwegian Institute for Air Research&quot;,&#xA;    &quot;Framework description&quot;: &quot;Atmospheric measuremnts produced at NILU.&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;Aspmo, Katrine, , Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&quot;,&#xA;    &quot;Submitter&quot;: &quot;Hjellbrekke, Anne, agh@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&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="69123" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="8" />
  <dimension name="mercury_GEM_qc_flags" length="2" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2007-02-11T19:30:00Z" />
    <attribute name="time_coverage_end" value="2014-12-31T23:30:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="3600.0" />
    <attribute name="time_coverage_duration" value="P0Y0M2880DT4H0M0.000S" />
  </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="mercury_GEM" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_gaseous_elemental_mercury_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="mercury_GEM_qc mercury_GEM_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="20221122111737" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="NO0058G" />
    <attribute name="ebas_platform_code" value="NO0058S" />
    <attribute name="ebas_station_name" value="Troll" />
    <attribute name="ebas_station_land_use" value="Snowfield" />
    <attribute name="ebas_station_setting" value="Polar" />
    <attribute name="ebas_station_latitude" value="-72.016667" />
    <attribute name="ebas_station_longitude" value="2.533333" />
    <attribute name="ebas_station_altitude" value="1309.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="mercury_GEM" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="NO01L" />
    <attribute name="ebas_instrument_type" value="Hg_mon" />
    <attribute name="ebas_instrument_name" value="tekran_58" />
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    <attribute name="ebas_organization" value="NO01L, Norwegian Institute for Air Research, NILU, , Instituttveien 18, , 2007, Kjeller, Norway" />
    <attribute name="ebas_framework_acronym" value="NILU" />
    <attribute name="ebas_framework_name" value="Norwegian Institute for Air Research" />
    <attribute name="ebas_framework_description" value="Atmospheric measuremnts produced at NILU." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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    <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" />
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    <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" />
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