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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 filter_3pack at Keldsnor (DK0005R)" />
  <attribute name="keywords" value="DK0005R, air, sulphur_dioxide, HELCOM, CAMP, EMEP, Keldsnor, sum_ammonia_and_ammonium, air+aerosol" />
  <attribute name="id" value="29KQ-7HD9.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="CAMP, EMEP, HELCOM" />
  <attribute name="acknowledgement" type="double" />
  <attribute name="doi" value="https://doi.org/10.48597/29KQ-7HD9" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="summary" value="Ground based in situ observations of filter_3pack at Keldsnor (DK0005R). These measurements are gathered as a part of the following projects CAMP, EMEP, HELCOM and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: sulphur_dioxide in air, sum_ammonia_and_ammonium in air+aerosol" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="DK01L, National Environmental Research Institute, NERI, P.O.Box 358, Fredriksborgvei 399, DK-4000 Roskilde, Denmark" />
  <attribute name="date_created" value="2004-07-05T00:00:00 UTC" />
  <attribute name="date_metadata_modified" value="2004-07-05T00:00:00 UTC" />
  <attribute name="creator_name" value="Kaare Kemp, Kaare Kemp, Kaare Kemp" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value=", , " />
  <attribute name="creator_institution" value=", , " />
  <attribute name="contributor_name" value="Kaare Kemp, Kaare Kemp, Kaare Kemp" />
  <attribute name="contributor_role" value="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 (54.746495 10.73616 10.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="54.746495" />
  <attribute name="geospatial_lat_max" type="double" value="54.746495" />
  <attribute name="geospatial_lon_min" type="double" value="10.73616" />
  <attribute name="geospatial_lon_max" type="double" value="10.73616" />
  <attribute name="geospatial_vertical_min" type="double" value="10.0" />
  <attribute name="geospatial_vertical_max" type="double" value="10.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2001-01-01T07:00:00 UTC" />
  <attribute name="time_coverage_end" value="2004-01-01T07:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0003-00-00T00:00:00" />
  <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_set_type_code" value="TU" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="29KQ-7HD9.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/29KQ-7HD9" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/29KQ-7HD9" />
  <attribute name="ebas_file_creation" value="2023-04-17T06:20:19.257319 UTC" />
  <attribute name="ebas_export_state" value="2014-05-01T00:00:00.000000 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="20010101070000" />
  <attribute name="ebas_revision_date" value="20040705000000" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_period_code" value="3y" />
  <attribute name="ebas_resolution_code" value="1d" />
  <attribute name="ebas_station_code" value="DK0005R" />
  <attribute name="ebas_platform_code" value="DK0005S" />
  <attribute name="ebas_station_name" value="Keldsnor" />
  <attribute name="ebas_station_latitude" value="54.746495" />
  <attribute name="ebas_station_longitude" value="10.73616" />
  <attribute name="ebas_station_altitude" value="10.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_laboratory_code" value="DK01L" />
  <attribute name="ebas_instrument_type" value="filter_3pack" />
  <attribute name="ebas_instrument_name" value="f3p_05" />
  <attribute name="ebas_organization" value="DK01L, National Environmental Research Institute, NERI, , &quot;P.O.Box 358, Fredriksborgvei 399, DK-4000 Roskilde, Denmark&quot;, , , , " />
  <attribute name="ebas_originator" value="Kemp, Kaare, , , , , , , , , " />
  <attribute name="ebas_submitter" value="Kemp, Kaare, , , , , , , , , " />
  <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;Set type code&quot;: &quot;TU&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;29KQ-7HD9.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/29KQ-7HD9&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/29KQ-7HD9&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-04-17T06:20:19.257319 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2014-05-01T00:00:00.000000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20010101070000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20040705000000&quot;,&#xA;    &quot;Statistics&quot;: &quot;arithmetic mean&quot;,&#xA;    &quot;Period code&quot;: &quot;3y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1d&quot;,&#xA;    &quot;Station code&quot;: &quot;DK0005R&quot;,&#xA;    &quot;Platform code&quot;: &quot;DK0005S&quot;,&#xA;    &quot;Station name&quot;: &quot;Keldsnor&quot;,&#xA;    &quot;Station latitude&quot;: &quot;54.746495&quot;,&#xA;    &quot;Station longitude&quot;: &quot;10.73616&quot;,&#xA;    &quot;Station altitude&quot;: &quot;10.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;DK01L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;filter_3pack&quot;,&#xA;    &quot;Instrument name&quot;: &quot;f3p_05&quot;,&#xA;    &quot;Organization&quot;: &quot;DK01L, National Environmental Research Institute, NERI, , \&quot;P.O.Box 358, Fredriksborgvei 399, DK-4000 Roskilde, Denmark\&quot;, , , , &quot;,&#xA;    &quot;Originator&quot;: &quot;Kemp, Kaare, , , , , , , , , &quot;,&#xA;    &quot;Submitter&quot;: &quot;Kemp, Kaare, , , , , , , , , &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="1095" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="3" />
  <dimension name="sulphur_dioxide_qc_flags" length="1" />
  <dimension name="sum_ammonia_and_ammonium_qc_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2001-01-01T19:00:00Z" />
    <attribute name="time_coverage_end" value="2003-12-31T19:00:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="86400.0" />
    <attribute name="time_coverage_duration" value="P0Y0M1094DT0H0M0.000S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-17" />
    <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="sulphur_dioxide" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sulphur_dioxide_expressed_as_sulphur_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="sulphur_dioxide_qc sulphur_dioxide_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="20040705000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_station_code" value="DK0005R" />
    <attribute name="ebas_platform_code" value="DK0005S" />
    <attribute name="ebas_station_name" value="Keldsnor" />
    <attribute name="ebas_station_latitude" value="54.746495" />
    <attribute name="ebas_station_longitude" value="10.73616" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sulphur_dioxide" />
    <attribute name="ebas_unit" value="ug S/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="DK01L" />
    <attribute name="ebas_instrument_type" value="filter_3pack" />
    <attribute name="ebas_instrument_name" value="f3p_05" />
    <attribute name="ebas_method_ref" value="DK01L_IC_air" />
    <attribute name="ebas_organization" value="DK01L, National Environmental Research Institute, NERI, , &quot;P.O.Box 358, Fredriksborgvei 399, DK-4000 Roskilde, Denmark&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="CAMP, EMEP, HELCOM" />
    <attribute name="ebas_framework_name" value="OSPARCOM - Comprehensive Atmospheric Monitoring Programme, European Monitoring and Evaluation Programme, Baltic Marine Environment Protection Commission - Helsinki Commission" />
    <attribute name="ebas_framework_description" value="The OSPARCOM Comprehensive Atmospheric Monitoring Programme goal is the assessment of the atmospheric input of selected contaminants to the OSPAR maritime area and regions., The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., Atmospheric monitoring data for the assessment of the atmospheric input of selected contaminants to the Baltic sea area." />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no, kt@nilu.no, kt@nilu.no" />
  </variable>
  <variable name="sulphur_dioxide_qc" shape="sulphur_dioxide_qc_flags time" type="int">
    <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="sulphur_dioxide_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sum_ammonia_and_ammonium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sum_ammonia_and_ammonium_in_aerosol" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug N/m3" />
    <attribute name="ancillary_variables" value="sum_ammonia_and_ammonium_qc sum_ammonia_and_ammonium_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="20040705000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_station_code" value="DK0005R" />
    <attribute name="ebas_platform_code" value="DK0005S" />
    <attribute name="ebas_station_name" value="Keldsnor" />
    <attribute name="ebas_station_latitude" value="54.746495" />
    <attribute name="ebas_station_longitude" value="10.73616" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sum_ammonia_and_ammonium" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="air+aerosol" />
    <attribute name="ebas_laboratory_code" value="DK01L" />
    <attribute name="ebas_instrument_type" value="filter_3pack" />
    <attribute name="ebas_instrument_name" value="f3p_05" />
    <attribute name="ebas_method_ref" value="DK01L_CFA_spectro" />
    <attribute name="ebas_organization" value="DK01L, National Environmental Research Institute, NERI, , &quot;P.O.Box 358, Fredriksborgvei 399, DK-4000 Roskilde, Denmark&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="EMEP, HELCOM" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme, Baltic Marine Environment Protection Commission - Helsinki Commission" />
    <attribute name="ebas_framework_description" value="The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., Atmospheric monitoring data for the assessment of the atmospheric input of selected contaminants to the Baltic sea area." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, kt@nilu.no" />
  </variable>
  <variable name="sum_ammonia_and_ammonium_qc" shape="sum_ammonia_and_ammonium_qc_flags time" type="int">
    <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="sum_ammonia_and_ammonium_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" />
  </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 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
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