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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 lead at Kollumerwaard (NL0009R) using low_vol_sampler" />
  <attribute name="keywords" value="mass_concentration_of_lead_in_dry_aerosol_particles_in _air, aerosol, CAMP, Kollumerwaard, NL0009R, lead, EMEP" />
  <attribute name="id" value="Q4K9-U4HM.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="CAMP, EMEP" />
  <attribute name="acknowledgement" type="double" />
  <attribute name="doi" value="https://doi.org/10.48597/Q4K9-U4HM" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Hans Berkhout, lead - low_vol_sampler at Kollumerwaard, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/Q4K9-U4HM" />
  <attribute name="summary" value="Ground based in situ observations of lead at Kollumerwaard (NL0009R) using low_vol_sampler. These measurements are gathered as a part of the following projects CAMP, EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: lead in aerosol (mass_concentration_of_lead_in_dry_aerosol_particles_in _air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="NL01L, Rijks institut voor volksgezondheid en milieuhygiene, RIVM, Antoine van Leeuwenhoeklaan 9, Postbus 1, NL-3720 BA BILTHOVEN, The Netherlands" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2015-11-24T10:21:41 UTC" />
  <attribute name="date_metadata_modified" value="2015-11-24T10:21:41 UTC" />
  <attribute name="creator_name" value="Hans Berkhout" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="" />
  <attribute name="creator_institution" value="" />
  <attribute name="contributor_name" value="Ronald Spoor" />
  <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 (53.333889 6.277222 1.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="53.333889" />
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  <attribute name="geospatial_lon_min" type="double" value="6.277222" />
  <attribute name="geospatial_lon_max" type="double" value="6.277222" />
  <attribute name="geospatial_vertical_min" type="double" value="1.0" />
  <attribute name="geospatial_vertical_max" type="double" value="1.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2013-01-01T01:00:00 UTC" />
  <attribute name="time_coverage_end" value="2014-01-01T01:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0001-00-00T00:00:00" />
  <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_citation" value="Hans Berkhout, lead - low_vol_sampler at Kollumerwaard, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/Q4K9-U4HM" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="Q4K9-U4HM.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/Q4K9-U4HM" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/Q4K9-U4HM" />
  <attribute name="ebas_file_creation" value="2023-12-08T15:00:47.965898 UTC" />
  <attribute name="ebas_export_state" value="2018-12-10T13:30:00.000000 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="20130101010000" />
  <attribute name="ebas_revision_date" value="20151124102141" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="1y" />
  <attribute name="ebas_resolution_code" value="1d" />
  <attribute name="ebas_station_code" value="NL0009R" />
  <attribute name="ebas_platform_code" value="NL0009S" />
  <attribute name="ebas_station_name" value="Kollumerwaard" />
  <attribute name="ebas_station_latitude" value="53.333889" />
  <attribute name="ebas_station_longitude" value="6.277222" />
  <attribute name="ebas_station_altitude" value="1.0 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="NL01L" />
  <attribute name="ebas_instrument_type" value="low_vol_sampler" />
  <attribute name="ebas_instrument_name" value="SL-SEQ-47_50" />
  <attribute name="ebas_method_ref" value="NL01L_LM-W-200_IL-W-902_EN12341" />
  <attribute name="ebas_organization" value="NL01L, Rijks institut voor volksgezondheid en milieuhygiene, RIVM, , &quot;Antoine van Leeuwenhoeklaan 9, Postbus 1, NL-3720 BA BILTHOVEN, The Netherlands&quot;, , , , " />
  <attribute name="ebas_framework_acronym" value="CAMP, EMEP" />
  <attribute name="ebas_framework_name" value="OSPARCOM - Comprehensive Atmospheric Monitoring Programme, European Monitoring and Evaluation Programme" />
  <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." />
  <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="Berkhout, Hans, , , , , , , , , " />
  <attribute name="ebas_submitter" value="Spoor, Ronald, , , , , , , , , " />
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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;Hans Berkhout, lead - low_vol_sampler at Kollumerwaard, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/Q4K9-U4HM&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;Q4K9-U4HM.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/Q4K9-U4HM&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/Q4K9-U4HM&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-08T15:00:47.965898 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2018-12-10T13:30:00.000000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20130101010000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20151124102141&quot;,&#xA;    &quot;Statistics&quot;: &quot;arithmetic mean&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;1y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1d&quot;,&#xA;    &quot;Station code&quot;: &quot;NL0009R&quot;,&#xA;    &quot;Platform code&quot;: &quot;NL0009S&quot;,&#xA;    &quot;Station name&quot;: &quot;Kollumerwaard&quot;,&#xA;    &quot;Station latitude&quot;: &quot;53.333889&quot;,&#xA;    &quot;Station longitude&quot;: &quot;6.277222&quot;,&#xA;    &quot;Station altitude&quot;: &quot;1.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Component&quot;: &quot;lead&quot;,&#xA;    &quot;Unit&quot;: &quot;ng/m3&quot;,&#xA;    &quot;Matrix&quot;: &quot;aerosol&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;NL01L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;low_vol_sampler&quot;,&#xA;    &quot;Instrument name&quot;: &quot;SL-SEQ-47_50&quot;,&#xA;    &quot;Method ref&quot;: &quot;NL01L_LM-W-200_IL-W-902_EN12341&quot;,&#xA;    &quot;Organization&quot;: &quot;NL01L, Rijks institut voor volksgezondheid en milieuhygiene, RIVM, , \&quot;Antoine van Leeuwenhoeklaan 9, Postbus 1, NL-3720 BA BILTHOVEN, The Netherlands\&quot;, , , , &quot;,&#xA;    &quot;Framework acronym&quot;: &quot;CAMP, EMEP&quot;,&#xA;    &quot;Framework name&quot;: &quot;OSPARCOM - Comprehensive Atmospheric Monitoring Programme, European Monitoring and Evaluation Programme&quot;,&#xA;    &quot;Framework description&quot;: &quot;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.&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;Berkhout, Hans, , , , , , , , , &quot;,&#xA;    &quot;Submitter&quot;: &quot;Spoor, Ronald, , , , , , , , , &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="366" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="2" />
  <dimension name="lead_qc_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2013-01-01T13:00:00Z" />
    <attribute name="time_coverage_end" value="2013-12-31T13:00:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="86163.0" />
    <attribute name="time_coverage_duration" value="P0Y0M364DT0H0M0.000S" />
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  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-18" />
    <attribute name="nciso_version" value="2.4.8" />
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  <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" />
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    <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="20151124102141" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="NL0009R" />
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    <attribute name="ebas_station_latitude" value="53.333889" />
    <attribute name="ebas_station_longitude" value="6.277222" />
    <attribute name="ebas_station_altitude" value="1.0 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" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <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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