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  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Ground based in situ observations of filter_3pack at Villum Research Station, Station Nord (DK0010G)" />
  <attribute name="keywords" value="Villum Research Station, Station Nord, cadmium, mass_concentration_of_arsenic_in_dry_aerosol_particles_in _air, mass_concentration_of_lead_in_dry_aerosol_particles_in _air, nickel, aerosol, AMAP, DK0010G, mass_concentration_of_nickel_in_dry_aerosol_particles_in _air, arsenic, lead, EMEP, mass_concentration_of_cadmium_in_dry_aerosol_particles_in _air" />
  <attribute name="id" value="TK6J-MUDG.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="AMAP, EMEP" />
  <attribute name="acknowledgement" value="nobody" />
  <attribute name="doi" value="https://doi.org/10.48597/TK6J-MUDG" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Maria Bech Poulsen, Henrik Skov, Maria Bech Poulsen, Henrik Skov, Maria Bech Poulsen, Henrik Skov, Maria Bech Poulsen, Henrik Skov, Maria Bech Poulsen, arsenic, cadmium, lead, nickel - filter_3pack at Villum Research Station, Station Nord, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/TK6J-MUDG" />
  <attribute name="summary" value="Ground based in situ observations of filter_3pack at Villum Research Station, Station Nord (DK0010G). These measurements are gathered as a part of the following projects AMAP, EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: arsenic in aerosol (mass_concentration_of_arsenic_in_dry_aerosol_particles_in _air), cadmium in aerosol (mass_concentration_of_cadmium_in_dry_aerosol_particles_in _air), lead in aerosol (mass_concentration_of_lead_in_dry_aerosol_particles_in _air), nickel in aerosol (mass_concentration_of_nickel_in_dry_aerosol_particles_in _air)" />
  <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="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2023-06-28T12:14:31 UTC" />
  <attribute name="date_metadata_modified" value="2023-06-28T12:14:31 UTC" />
  <attribute name="creator_name" value="Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Maria Bech Poulsen, Henrik Skov, Maria Bech Poulsen, Henrik Skov, Maria Bech Poulsen, Henrik Skov, Maria Bech Poulsen, Henrik Skov, Maria Bech Poulsen" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="hsk@envs.au.dk, jakn@envs.au.dk, hsk@envs.au.dk, jakn@envs.au.dk, hsk@envs.au.dk, jakn@envs.au.dk, hsk@envs.au.dk, cmo@dmu.dk, hsk@envs.au.dk, jakn@envs.au.dk, hsk@envs.au.dk, jakn@envs.au.dk, hsk@envs.au.dk, mabp@envs.au.dk, hsk@envs.au.dk, mabp@envs.au.dk, hsk@envs.au.dk, mabp@envs.au.dk, hsk@envs.au.dk, mabp@envs.au.dk, hsk@envs.au.dk, mabp@envs.au.dk" />
  <attribute name="creator_institution" value="&quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;" />
  <attribute name="contributor_name" value="Rune Keller, Rune Keller, Rune Keller, Rune Keller, Rune Keller, Rune Keller, Rune Keller, Rune Keller, Rune Keller, Rune Keller, Rune Keller" />
  <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" />
  <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" />
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  <attribute name="publisher_url" value="https://www.nilu.no/" />
  <attribute name="geospatial_bounds" value="POINT Z (81.6 -16.67 1.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
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  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2013-01-08T08:00:00 UTC" />
  <attribute name="time_coverage_end" value="2022-07-05T00:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0009-05-26T16:00:00" />
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  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Maria Bech Poulsen, Henrik Skov, Maria Bech Poulsen, Henrik Skov, Maria Bech Poulsen, Henrik Skov, Maria Bech Poulsen, Henrik Skov, Maria Bech Poulsen, arsenic, cadmium, lead, nickel - filter_3pack at Villum Research Station, Station Nord, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/TK6J-MUDG" />
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  <attribute name="ebas_file_creation" value="2023-12-12T15:59:46.262804 UTC" />
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  <attribute name="ebas_statistics" value="arithmetic mean" />
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  <attribute name="ebas_orig_time_res" value="1w" />
  <attribute name="ebas_station_code" value="DK0010G" />
  <attribute name="ebas_platform_code" value="DK0010S" />
  <attribute name="ebas_station_name" value="Villum Research Station, Station Nord" />
  <attribute name="ebas_station_latitude" value="81.6" />
  <attribute name="ebas_station_longitude" value="-16.67" />
  <attribute name="ebas_station_altitude" value="20.0 m" />
  <attribute name="ebas_measurement_altitude" value="1.0 m" />
  <attribute name="ebas_measurement_height" value="3.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_unit" value="ng/m3" />
  <attribute name="ebas_matrix" value="aerosol" />
  <attribute name="ebas_laboratory_code" value="DK01L" />
  <attribute name="ebas_instrument_type" value="filter_3pack" />
  <attribute name="ebas_instrument_name" value="f3p_10" />
  <attribute name="ebas_method_ref" value="DK01L_ATAIR_01" />
  <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
  <attribute name="ebas_inlet_type" value="Hat or hood" />
  <attribute name="ebas_inlet_description" value="Downward facing" />
  <attribute name="ebas_medium" value="Teflon" />
  <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
  <attribute name="ebas_blank_correction" value="Blank corrected" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head." />
  <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
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  <attribute name="ebas_organization" value="DK01L, National Environmental Research Institute, NERI, , &quot;P.O.Box 358, Fredriksborgvei 399, DK-4000 Roskilde, Denmark&quot;, , , , " />
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  <attribute name="ebas_framework_name" value=", European Monitoring and Evaluation Programme" />
  <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." />
  <attribute name="ebas_framework_contact_name" value="Wenche Aas, Kjetil Tørseth" />
  <attribute name="ebas_framework_contact_email" value="waa@nilu.no, kt@nilu.no" />
  <attribute name="ebas_originator" value="Poulsen, Maria Bech, mabp@envs.au.dk, Aarhus Universitet, ATAIR, ENVIS, Frederiksborgvej 399, Postbox 358, 4000, Roskilde, Denmark" />
  <attribute name="ebas_submitter" value="Keller, Rune, , , , , , , , , " />
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  <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;Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Maria Bech Poulsen, Henrik Skov, Maria Bech Poulsen, Henrik Skov, Maria Bech Poulsen, Henrik Skov, Maria Bech Poulsen, Henrik Skov, Maria Bech Poulsen, arsenic, cadmium, lead, nickel - filter_3pack at Villum Research Station, Station Nord, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/TK6J-MUDG&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;TK6J-MUDG.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/TK6J-MUDG&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/TK6J-MUDG&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-12T15:59:46.262804 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2023-06-28T12:15:59.920918 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20130108080000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20230628121431&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Statistics&quot;: &quot;arithmetic mean&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;9y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1w&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1w&quot;,&#xA;    &quot;Orig. time res.&quot;: &quot;1w&quot;,&#xA;    &quot;Station code&quot;: &quot;DK0010G&quot;,&#xA;    &quot;Platform code&quot;: &quot;DK0010S&quot;,&#xA;    &quot;Station name&quot;: &quot;Villum Research Station, Station Nord&quot;,&#xA;    &quot;Station latitude&quot;: &quot;81.6&quot;,&#xA;    &quot;Station longitude&quot;: &quot;-16.67&quot;,&#xA;    &quot;Station altitude&quot;: &quot;20.0 m&quot;,&#xA;    &quot;Measurement altitude&quot;: &quot;1.0 m&quot;,&#xA;    &quot;Measurement height&quot;: &quot;3.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Unit&quot;: &quot;ng/m3&quot;,&#xA;    &quot;Matrix&quot;: &quot;aerosol&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_10&quot;,&#xA;    &quot;Method ref&quot;: &quot;DK01L_ATAIR_01&quot;,&#xA;    &quot;Standard method&quot;: &quot;SOP=EMEP_manual_v2014&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Hat or hood&quot;,&#xA;    &quot;Inlet description&quot;: &quot;Downward facing&quot;,&#xA;    &quot;Medium&quot;: &quot;Teflon&quot;,&#xA;    &quot;Sample preparation&quot;: &quot;Water extraction after ultrasonic treatment&quot;,&#xA;    &quot;Blank correction&quot;: &quot;Blank corrected&quot;,&#xA;    &quot;Humidity/temperature control&quot;: &quot;None&quot;,&#xA;    &quot;Humidity/temperature control description&quot;: &quot;filter kept at ambient conditions together with sampling head.&quot;,&#xA;    &quot;Detection limit expl.&quot;: &quot;Determined by taking 3 times standard deviation of ensemble of field blanks&quot;,&#xA;    &quot;Zero/negative values code&quot;: &quot;Zero/negative possible&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;Framework acronym&quot;: &quot;AMAP, EMEP&quot;,&#xA;    &quot;Framework name&quot;: &quot;, European Monitoring and Evaluation Programme&quot;,&#xA;    &quot;Framework description&quot;: &quot;, 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.&quot;,&#xA;    &quot;Framework contact name&quot;: &quot;Wenche Aas, Kjetil Tørseth&quot;,&#xA;    &quot;Framework contact email&quot;: &quot;waa@nilu.no, kt@nilu.no&quot;,&#xA;    &quot;Originator&quot;: &quot;Poulsen, Maria Bech, mabp@envs.au.dk, Aarhus Universitet, ATAIR, ENVIS, Frederiksborgvej 399, Postbox 358, 4000, Roskilde, Denmark&quot;,&#xA;    &quot;Submitter&quot;: &quot;Keller, Rune, , , , , , , , , &quot;&#xA;}" />
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  <dimension name="tbnds" length="2" />
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  <dimension name="arsenic_qc_flags" length="1" />
  <dimension name="cadmium_qc_flags" length="1" />
  <dimension name="lead_qc_flags" length="1" />
  <dimension name="nickel_qc_flags" length="1" />
  <group name="CFMetadata">
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    <attribute name="ebas_station_name" value="Villum Research Station, Station Nord" />
    <attribute name="ebas_station_latitude" value="81.6" />
    <attribute name="ebas_station_longitude" value="-16.67" />
    <attribute name="ebas_station_altitude" value="20.0 m" />
    <attribute name="ebas_measurement_altitude" value="1.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="cadmium" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="aerosol" />
    <attribute name="ebas_laboratory_code" value="DK01L" />
    <attribute name="ebas_instrument_type" value="filter_3pack" />
    <attribute name="ebas_instrument_name" value="f3p_10" />
    <attribute name="ebas_method_ref" value="DK01L_ATAIR_01" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_medium" value="Teflon" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head." />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <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="AMAP, EMEP" />
    <attribute name="ebas_framework_name" value=", European Monitoring and Evaluation Programme" />
    <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." />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="Nøjgaard, Jacob Klenø, cmo@dmu.dk, Aarhus Universitet, ATAIR, ENVIS, Frederiksborgvej 399, Postbox 358, 4000, Roskilde, Denmark" />
  </variable>
  <variable name="cadmium_qc" shape="cadmium_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="cadmium_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="lead" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_lead_in_dry_aerosol_particles_in _air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="lead_qc lead_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="20230628121431" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <attribute name="ebas_station_code" value="DK0010G" />
    <attribute name="ebas_platform_code" value="DK0010S" />
    <attribute name="ebas_station_name" value="Villum Research Station, Station Nord" />
    <attribute name="ebas_station_latitude" value="81.6" />
    <attribute name="ebas_station_longitude" value="-16.67" />
    <attribute name="ebas_station_altitude" value="20.0 m" />
    <attribute name="ebas_measurement_altitude" value="1.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="lead" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="aerosol" />
    <attribute name="ebas_laboratory_code" value="DK01L" />
    <attribute name="ebas_instrument_type" value="filter_3pack" />
    <attribute name="ebas_instrument_name" value="f3p_10" />
    <attribute name="ebas_method_ref" value="DK01L_ATAIR_01" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_medium" value="Teflon" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head." />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <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="AMAP, EMEP" />
    <attribute name="ebas_framework_name" value=", European Monitoring and Evaluation Programme" />
    <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." />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="Nøjgaard, Jacob Klenø, cmo@dmu.dk, Aarhus Universitet, ATAIR, ENVIS, Frederiksborgvej 399, Postbox 358, 4000, Roskilde, Denmark" />
  </variable>
  <variable name="lead_qc" shape="lead_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="lead_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nickel" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nickel_in_dry_aerosol_particles_in _air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="nickel_qc nickel_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="20230628121431" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <attribute name="ebas_station_code" value="DK0010G" />
    <attribute name="ebas_platform_code" value="DK0010S" />
    <attribute name="ebas_station_name" value="Villum Research Station, Station Nord" />
    <attribute name="ebas_station_latitude" value="81.6" />
    <attribute name="ebas_station_longitude" value="-16.67" />
    <attribute name="ebas_station_altitude" value="20.0 m" />
    <attribute name="ebas_measurement_altitude" value="1.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nickel" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="aerosol" />
    <attribute name="ebas_laboratory_code" value="DK01L" />
    <attribute name="ebas_instrument_type" value="filter_3pack" />
    <attribute name="ebas_instrument_name" value="f3p_10" />
    <attribute name="ebas_method_ref" value="DK01L_ATAIR_01" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_medium" value="Teflon" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head." />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <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="AMAP, EMEP" />
    <attribute name="ebas_framework_name" value=", European Monitoring and Evaluation Programme" />
    <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." />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="Nøjgaard, Jacob Klenø, cmo@dmu.dk, Aarhus Universitet, ATAIR, ENVIS, Frederiksborgvej 399, Postbox 358, 4000, Roskilde, Denmark" />
  </variable>
  <variable name="nickel_qc" shape="nickel_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="nickel_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>
</netcdf>
