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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 ammonia at Koksijde (BE0014R) using passive_sampler" />
  <attribute name="keywords" value="Koksijde, air, CAMP, mass_concentration_of_ammonia_expressed_as_nitrogen_in_air, ammonia, BE0014R, EMEP" />
  <attribute name="id" value="X87T-HNZA.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="CAMP, EMEP" />
  <attribute name="acknowledgement" value="Request acknowledgement details from data originator" />
  <attribute name="doi" value="https://doi.org/10.48597/X87T-HNZA" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Bo Van den Bril, Jeroen Staelens, ammonia - passive_sampler at Koksijde, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/X87T-HNZA" />
  <attribute name="summary" value="Ground based in situ observations of ammonia at Koksijde (BE0014R) using passive_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: ammonia in air (mass_concentration_of_ammonia_expressed_as_nitrogen_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="BE01L, Flanders Environment Agency, VMM, Section Air Immissions, Kronenburgstraat 45, 2000, Antwerpen, Belgium" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2018-09-20T14:02:26 UTC" />
  <attribute name="date_metadata_modified" value="2018-09-20T14:02:26 UTC" />
  <attribute name="creator_name" value="Bo Van den Bril, Jeroen Staelens" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="b.vandenbril@vmm.be, j.staelens@vmm.be" />
  <attribute name="creator_institution" value="&quot;Flemish Environment Agency, Section Air Immissions, VMM&quot;, &quot;Flanders Environment Agency, Section Air Immissions, VMM&quot;" />
  <attribute name="contributor_name" value="Elke Adriaenssens, Elke Adriaenssens" />
  <attribute name="contributor_role" value="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 (51.12092 2.65854 7.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="51.12092" />
  <attribute name="geospatial_lat_max" type="double" value="51.12092" />
  <attribute name="geospatial_lon_min" type="double" value="2.65854" />
  <attribute name="geospatial_lon_max" type="double" value="2.65854" />
  <attribute name="geospatial_vertical_min" type="double" value="7.0" />
  <attribute name="geospatial_vertical_max" type="double" value="7.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2016-10-04T00:00:00 UTC" />
  <attribute name="time_coverage_end" value="2017-12-26T00:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0001-02-22T00:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-28T00:00:00" />
  <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="Bo Van den Bril, Jeroen Staelens, ammonia - passive_sampler at Koksijde, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/X87T-HNZA" />
  <attribute name="ebas_set_type_code" value="TU" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="X87T-HNZA.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/X87T-HNZA" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/X87T-HNZA" />
  <attribute name="ebas_file_creation" value="2023-12-08T21:25:18.804307 UTC" />
  <attribute name="ebas_export_state" value="2018-09-20T14:02:26.383000 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="20161004000000" />
  <attribute name="ebas_revision_date" value="20180920140226" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="64w" />
  <attribute name="ebas_resolution_code" value="4w" />
  <attribute name="ebas_sample_duration" value="4w" />
  <attribute name="ebas_orig_time_res" value="4w" />
  <attribute name="ebas_station_code" value="BE0014R" />
  <attribute name="ebas_platform_code" value="BE0014S" />
  <attribute name="ebas_station_name" value="Koksijde" />
  <attribute name="ebas_station_other_ids" value="KK01 (meta DB)" />
  <attribute name="ebas_station_land_use" value="Grassland" />
  <attribute name="ebas_station_setting" value="Coastal" />
  <attribute name="ebas_station_latitude" value="51.12092" />
  <attribute name="ebas_station_longitude" value="2.65854" />
  <attribute name="ebas_station_altitude" value="4.0 m" />
  <attribute name="ebas_measurement_altitude" value="7.0 m" />
  <attribute name="ebas_measurement_height" value="3.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_component" value="ammonia" />
  <attribute name="ebas_unit" value="ug N/m3" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="BE01L" />
  <attribute name="ebas_instrument_type" value="passive_sampler" />
  <attribute name="ebas_instrument_name" value="39KK01019" />
  <attribute name="ebas_instrument_manufacturer" value="Radiello" />
  <attribute name="ebas_instrument_model" value="RAD168" />
  <attribute name="ebas_analytical_laboratory_code" value="BE08L" />
  <attribute name="ebas_analytical_measurement_technique" value="spectrophotometric" />
  <attribute name="ebas_analytical_instrument_name" value="BDB_spec" />
  <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Scientific" />
  <attribute name="ebas_analytical_instrument_model" value="Aquakem 250" />
  <attribute name="ebas_method_ref" value="BE08L_BDB_spec" />
  <attribute name="ebas_standard_method" value="SOP=ISO 15923-1:2013" />
  <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standarddeviation of 10 blanks" />
  <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
  <attribute name="ebas_organization" value="BE01L, Flanders Environment Agency, VMM, Section Air Immissions, Kronenburgstraat 45, , 2000, Antwerpen, Belgium" />
  <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="Staelens, Jeroen, j.staelens@vmm.be, Flanders Environment Agency, VMM, Section Air Immissions, Kronenburgstraat 45, , 2000, Antwerpen, Belgium" />
  <attribute name="ebas_submitter" value="Adriaenssens, Elke, e.adriaenssens@vmm.be, Flanders Environment Agency, VMM, Section Air Immissions, Kronenburgstraat 45, , 2000, Antwerpen, Belgium" />
  <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  <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;Citation&quot;: &quot;Bo Van den Bril, Jeroen Staelens, ammonia - passive_sampler at Koksijde, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/X87T-HNZA&quot;,&#xA;    &quot;Set type code&quot;: &quot;TU&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;X87T-HNZA.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/X87T-HNZA&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/X87T-HNZA&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-08T21:25:18.804307 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2018-09-20T14:02:26.383000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20161004000000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20180920140226&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;64w&quot;,&#xA;    &quot;Resolution code&quot;: &quot;4w&quot;,&#xA;    &quot;Sample duration&quot;: &quot;4w&quot;,&#xA;    &quot;Orig. time res.&quot;: &quot;4w&quot;,&#xA;    &quot;Station code&quot;: &quot;BE0014R&quot;,&#xA;    &quot;Platform code&quot;: &quot;BE0014S&quot;,&#xA;    &quot;Station name&quot;: &quot;Koksijde&quot;,&#xA;    &quot;Station other IDs&quot;: &quot;KK01 (meta DB)&quot;,&#xA;    &quot;Station land use&quot;: &quot;Grassland&quot;,&#xA;    &quot;Station setting&quot;: &quot;Coastal&quot;,&#xA;    &quot;Station latitude&quot;: &quot;51.12092&quot;,&#xA;    &quot;Station longitude&quot;: &quot;2.65854&quot;,&#xA;    &quot;Station altitude&quot;: &quot;4.0 m&quot;,&#xA;    &quot;Measurement altitude&quot;: &quot;7.0 m&quot;,&#xA;    &quot;Measurement height&quot;: &quot;3.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Component&quot;: &quot;ammonia&quot;,&#xA;    &quot;Unit&quot;: &quot;ug N/m3&quot;,&#xA;    &quot;Matrix&quot;: &quot;air&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;BE01L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;passive_sampler&quot;,&#xA;    &quot;Instrument name&quot;: &quot;39KK01019&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;Radiello&quot;,&#xA;    &quot;Instrument model&quot;: &quot;RAD168&quot;,&#xA;    &quot;Analytical laboratory code&quot;: &quot;BE08L&quot;,&#xA;    &quot;Analytical measurement technique&quot;: &quot;spectrophotometric&quot;,&#xA;    &quot;Analytical instrument name&quot;: &quot;BDB_spec&quot;,&#xA;    &quot;Analytical instrument manufacturer&quot;: &quot;Thermo Scientific&quot;,&#xA;    &quot;Analytical instrument model&quot;: &quot;Aquakem 250&quot;,&#xA;    &quot;Method ref&quot;: &quot;BE08L_BDB_spec&quot;,&#xA;    &quot;Standard method&quot;: &quot;SOP=ISO 15923-1:2013&quot;,&#xA;    &quot;Detection limit expl.&quot;: &quot;Determined by taking 3 times standarddeviation of 10 blanks&quot;,&#xA;    &quot;Zero/negative values code&quot;: &quot;Zero/negative possible&quot;,&#xA;    &quot;Organization&quot;: &quot;BE01L, Flanders Environment Agency, VMM, Section Air Immissions, Kronenburgstraat 45, , 2000, Antwerpen, Belgium&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;Staelens, Jeroen, j.staelens@vmm.be, Flanders Environment Agency, VMM, Section Air Immissions, Kronenburgstraat 45, , 2000, Antwerpen, Belgium&quot;,&#xA;    &quot;Submitter&quot;: &quot;Adriaenssens, Elke, e.adriaenssens@vmm.be, Flanders Environment Agency, VMM, Section Air Immissions, Kronenburgstraat 45, , 2000, Antwerpen, Belgium&quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;Request acknowledgement details from data originator&quot;&#xA;}" />
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  <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="16" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="2" />
  <dimension name="ammonia_qc_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2016-10-18T00:00:00Z" />
    <attribute name="time_coverage_end" value="2017-12-12T00:00:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
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    <attribute name="time_coverage_duration" value="P0Y0M420DT0H0M0.000S" />
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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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    <attribute name="long_name" value="time bounds for measurement" />
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  <variable name="metadata_time_bnds" shape="metadata_time tbnds" type="double">
    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
  </variable>
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ammonia_expressed_as_nitrogen_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="ammonia_qc ammonia_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="20180920140226" />
    <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="4w" />
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    <attribute name="ebas_station_code" value="BE0014R" />
    <attribute name="ebas_platform_code" value="BE0014S" />
    <attribute name="ebas_station_name" value="Koksijde" />
    <attribute name="ebas_station_other_ids" value="KK01 (meta DB)" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_latitude" value="51.12092" />
    <attribute name="ebas_station_longitude" value="2.65854" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ammonia" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="BE01L" />
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    <attribute name="ebas_organization" value="BE01L, Flanders Environment Agency, VMM, Section Air Immissions, Kronenburgstraat 45, , 2000, Antwerpen, Belgium" />
    <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" />
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    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
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    <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" />
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  <variable name="ammonia_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <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" />
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    <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" />
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    <attribute name="_CoordinateAxisType" value="Time" />
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