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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 CEH_denuder at Lough Navar (GB0006R)" />
  <attribute name="keywords" value="GB0006R, nitrate, ammonium, mass_concentration_of_ammonium_expressed_as_nitrogen_in_dry_aerosol_particles_in _air, aerosol, mass_concentration_of_nitrate_expressed_as_nitrogen_in_dry_aerosol_particles_in _air, air, Lough Navar, mass_concentration_of_ammonium_in_dry_aerosol_particles_in _air, mass_concentration_of_nitrate_in_dry_aerosol_particles_in _air, CAMP, ammonia, nitric_acid, mass_concentration_of_ammonia_expressed_as_nitrogen_in_air, mass_concentration_of_nitric_acid_expressed_as_nitrogen_in_air, EMEP" />
  <attribute name="id" value="RUN4-PNM2.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/RUN4-PNM2" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Heath Malcolm, Heath Malcolm, Heath Malcolm, Heath Malcolm, Heath Malcolm, Heath Malcolm, Heath Malcolm, Sim Tang, Sim Tang, Sim Tang, ammonia, ammonium, nitrate, nitric_acid - CEH_denuder at Lough Navar, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/RUN4-PNM2" />
  <attribute name="summary" value="Ground based in situ observations of CEH_denuder at Lough Navar (GB0006R). 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), ammonium in aerosol (mass_concentration_of_ammonium_expressed_as_nitrogen_in_dry_aerosol_particles_in _air), ammonium in aerosol (mass_concentration_of_ammonium_in_dry_aerosol_particles_in _air), nitrate in aerosol (mass_concentration_of_nitrate_expressed_as_nitrogen_in_dry_aerosol_particles_in _air), nitrate in aerosol (mass_concentration_of_nitrate_in_dry_aerosol_particles_in _air), nitric_acid in air (mass_concentration_of_nitric_acid_expressed_as_nitrogen_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="GB03L, CEH Edinburgh" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2022-09-27T00:00:00 UTC" />
  <attribute name="date_metadata_modified" value="2022-09-27T00:00:00 UTC" />
  <attribute name="creator_name" value="Heath Malcolm, Heath Malcolm, Heath Malcolm, Heath Malcolm, Heath Malcolm, Heath Malcolm, Heath Malcolm, Sim Tang, Sim Tang, Sim Tang" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value=", , , , , , , , , " />
  <attribute name="creator_institution" value=", , , , , , , , , " />
  <attribute name="contributor_name" value="Vincent Keith, Vincent Keith, Vincent Keith, Vincent Keith, Vincent Keith, Vincent Keith, Vincent Keith, Vincent Keith, Keith Vincent, Keith Vincent" />
  <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" />
  <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 (54.443056 -7.87 126.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="54.443056" />
  <attribute name="geospatial_lat_max" type="double" value="54.443056" />
  <attribute name="geospatial_lon_min" type="double" value="-7.87" />
  <attribute name="geospatial_lon_max" type="double" value="-7.87" />
  <attribute name="geospatial_vertical_min" type="double" value="126.0" />
  <attribute name="geospatial_vertical_max" type="double" value="126.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2004-01-01T08:00:00 UTC" />
  <attribute name="time_coverage_end" value="2022-01-03T16:55:00 UTC" />
  <attribute name="time_coverage_duration" value="P0018-00-02T08:55:00" />
  <attribute name="time_coverage_resolution" value="P0000-01-00T00:00:00" />
  <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="Heath Malcolm, Heath Malcolm, Heath Malcolm, Heath Malcolm, Heath Malcolm, Heath Malcolm, Heath Malcolm, Sim Tang, Sim Tang, Sim Tang, ammonia, ammonium, nitrate, nitric_acid - CEH_denuder at Lough Navar, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/RUN4-PNM2" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="RUN4-PNM2.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/RUN4-PNM2" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/RUN4-PNM2" />
  <attribute name="ebas_file_creation" value="2023-12-12T13:44:14.111289 UTC" />
  <attribute name="ebas_export_state" value="2022-10-19T14:05:58.531784 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="20040101080000" />
  <attribute name="ebas_revision_date" value="20220927000000" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="18y" />
  <attribute name="ebas_resolution_code" value="1mo" />
  <attribute name="ebas_station_code" value="GB0006R" />
  <attribute name="ebas_platform_code" value="GB0006S" />
  <attribute name="ebas_station_name" value="Lough Navar" />
  <attribute name="ebas_station_latitude" value="54.443056" />
  <attribute name="ebas_station_longitude" value="-7.87" />
  <attribute name="ebas_station_altitude" value="126.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_laboratory_code" value="GB03L" />
  <attribute name="ebas_instrument_type" value="CEH_denuder" />
  <attribute name="ebas_instrument_name" value="CEH_denuder_06" />
  <attribute name="ebas_method_ref" value="GB03L_CEH" />
  <attribute name="ebas_organization" value="GB03L, CEH Edinburgh, , , , , , , " />
  <attribute name="ebas_originator" value="Tang, Sim, , , , , , , , , " />
  <attribute name="ebas_submitter" value="Vincent, Keith, , , , , , , , , " />
  <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;Heath Malcolm, Heath Malcolm, Heath Malcolm, Heath Malcolm, Heath Malcolm, Heath Malcolm, Heath Malcolm, Sim Tang, Sim Tang, Sim Tang, ammonia, ammonium, nitrate, nitric_acid - CEH_denuder at Lough Navar, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/RUN4-PNM2&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;RUN4-PNM2.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/RUN4-PNM2&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/RUN4-PNM2&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-12T13:44:14.111289 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2022-10-19T14:05:58.531784 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20040101080000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20220927000000&quot;,&#xA;    &quot;Statistics&quot;: &quot;arithmetic mean&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;18y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1mo&quot;,&#xA;    &quot;Station code&quot;: &quot;GB0006R&quot;,&#xA;    &quot;Platform code&quot;: &quot;GB0006S&quot;,&#xA;    &quot;Station name&quot;: &quot;Lough Navar&quot;,&#xA;    &quot;Station latitude&quot;: &quot;54.443056&quot;,&#xA;    &quot;Station longitude&quot;: &quot;-7.87&quot;,&#xA;    &quot;Station altitude&quot;: &quot;126.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;GB03L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;CEH_denuder&quot;,&#xA;    &quot;Instrument name&quot;: &quot;CEH_denuder_06&quot;,&#xA;    &quot;Method ref&quot;: &quot;GB03L_CEH&quot;,&#xA;    &quot;Organization&quot;: &quot;GB03L, CEH Edinburgh, , , , , , , &quot;,&#xA;    &quot;Originator&quot;: &quot;Tang, Sim, , , , , , , , , &quot;,&#xA;    &quot;Submitter&quot;: &quot;Vincent, Keith, , , , , , , , , &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="120" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="10" />
  <dimension name="ammonia_qc_flags" length="3" />
  <dimension name="ammonium_ug_N_per_m3_qc_flags" length="2" />
  <dimension name="ammonium_ug_per_m3_qc_flags" length="2" />
  <dimension name="nitrate_ug_N_per_m3_qc_flags" length="3" />
  <dimension name="nitrate_ug_per_m3_qc_flags" length="3" />
  <dimension name="nitric_acid_qc_flags" length="3" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2004-01-16T20:00:00Z" />
    <attribute name="time_coverage_end" value="2021-12-19T03:49:59Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="4752963.0" />
    <attribute name="time_coverage_duration" value="P0Y0M6546DT7H49M59.999S" />
  </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="ammonia" shape="time" type="double">
    <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="20220927000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="GB0006R" />
    <attribute name="ebas_platform_code" value="GB0006S" />
    <attribute name="ebas_station_name" value="Lough Navar" />
    <attribute name="ebas_station_latitude" value="54.443056" />
    <attribute name="ebas_station_longitude" value="-7.87" />
    <attribute name="ebas_station_altitude" value="126.0 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="GB03L" />
    <attribute name="ebas_instrument_type" value="CEH_denuder" />
    <attribute name="ebas_instrument_name" value="CEH_denuder_06" />
    <attribute name="ebas_method_ref" value="GB03L_CEH" />
    <attribute name="ebas_organization" value="GB03L, CEH Edinburgh, , , , , , , " />
  </variable>
  <variable name="ammonia_qc" shape="ammonia_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="ammonia_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="ammonium_ug_N_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ammonium_expressed_as_nitrogen_in_dry_aerosol_particles_in _air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="ammonium_ug N_per_m3_qc ammonium_ug N_per_m3_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="20220927000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="GB0006R" />
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  </variable>
  <variable name="nitrate_ug_per_m3" shape="time" type="double">
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  <variable name="nitrate_ug_per_m3_qc" shape="nitrate_ug_per_m3_qc_flags time" type="int">
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  </variable>
  <variable name="nitric_acid" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitric_acid_expressed_as_nitrogen_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="nitric_acid_qc nitric_acid_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="20220927000000" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="GB0006R" />
    <attribute name="ebas_platform_code" value="GB0006S" />
    <attribute name="ebas_station_name" value="Lough Navar" />
    <attribute name="ebas_station_latitude" value="54.443056" />
    <attribute name="ebas_station_longitude" value="-7.87" />
    <attribute name="ebas_station_altitude" value="126.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitric_acid" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB03L" />
    <attribute name="ebas_instrument_type" value="CEH_denuder" />
    <attribute name="ebas_instrument_name" value="CEH_denuder_06" />
    <attribute name="ebas_method_ref" value="GB03L_CEH" />
    <attribute name="ebas_organization" value="GB03L, CEH Edinburgh, , , , , , , " />
  </variable>
  <variable name="nitric_acid_qc" shape="nitric_acid_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="nitric_acid_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>
