<?xml version="1.0" encoding="UTF-8"?>
<netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2" location="Not provided because of security concerns.">
  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Nitrogen_monoxide at Cape Verde Atmospheric Observatory" />
  <attribute name="keywords" value="Cape Verde Atmospheric Observatory, CV0001G, EMEP, mole_fraction_of_nitrogen_monoxide_in_air, GAW-WDCRG, nitrogen_monoxide, air, ACTRIS, mass_concentration_of_nitrogen_monoxide_expressed_as_nitrogen_in_air" />
  <attribute name="id" value="KGN3-PWC8.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, EMEP, GAW-WDCRG" />
  <attribute name="acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. In the event of publications using this data the author must contact the Atmospheric Measurement Facility (AMF), National Centre for Atmospheric Science (NCAS)." />
  <attribute name="doi" value="https://doi.org/10.48597/KGN3-PWC8" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Andersen, S., Andersen, S., Andersen, S., Andersen, S., Andersen, S., 2021, Nitrogen_monoxide at Cape Verde Atmospheric Observatory, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/KGN3-PWC8" />
  <attribute name="summary" value="Nitrogen_monoxide at Cape Verde Atmospheric Observatory. These measurements are gathered as a part of the following projects ACTRIS, EMEP, GAW-WDCRG and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: nitrogen_monoxide in air (mole_fraction_of_nitrogen_monoxide_in_air), nitrogen_monoxide in air (mass_concentration_of_nitrogen_monoxide_expressed_as_nitrogen_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="GB12L, National Centre for Atmospheric Science, NCAS, Department of Chemistry, University of York, YO10 5DD, York, United Kingdom" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2021-02-01T11:11:33 UTC" />
  <attribute name="date_metadata_modified" value="2021-02-01T11:11:33 UTC" />
  <attribute name="creator_name" value="Simone Andersen, Simone Andersen, Simone Andersen, Simone Andersen, Simone Andersen" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="sta516@york.ac.uk, sta516@york.ac.uk, sta516@york.ac.uk, sta516@york.ac.uk, sta516@york.ac.uk" />
  <attribute name="creator_institution" value="&quot;University of York, Wolfson Atmospheric Chemistry Laboratory, UofY&quot;, &quot;University of York, Wolfson Atmospheric Chemistry Laboratory, UofY&quot;, &quot;University of York, Wolfson Atmospheric Chemistry Laboratory, UofY&quot;, &quot;University of York, Wolfson Atmospheric Chemistry Laboratory, UofY&quot;, &quot;University of York, Wolfson Atmospheric Chemistry Laboratory, UofY&quot;" />
  <attribute name="contributor_name" value="Simone Andersen, Simone Andersen, Simone Andersen, Simone Andersen, Simone Andersen" />
  <attribute name="contributor_role" value="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 (16.86403 -24.86752 10.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="16.86403" />
  <attribute name="geospatial_lat_max" type="double" value="16.86403" />
  <attribute name="geospatial_lon_min" type="double" value="-24.86752" />
  <attribute name="geospatial_lon_max" type="double" value="-24.86752" />
  <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="2012-01-01T00:00:00 UTC" />
  <attribute name="time_coverage_end" value="2017-01-01T00:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0005-00-00T00:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-00T01:00:00" />
  <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="Andersen, S., Andersen, S., Andersen, S., Andersen, S., Andersen, S., 2021, Nitrogen_monoxide at Cape Verde Atmospheric Observatory, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/KGN3-PWC8" />
  <attribute name="ebas_set_type_code" value="TU" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="KGN3-PWC8.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/KGN3-PWC8" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/KGN3-PWC8" />
  <attribute name="ebas_file_creation" value="2024-02-11T00:59:23.460350 UTC" />
  <attribute name="ebas_export_state" value="2019-04-25T11:15:43.003000 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="20120101000000" />
  <attribute name="ebas_revision_date" value="20210201111133" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="initial revision, manually inspected" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="5y" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_sample_duration" value="1h" />
  <attribute name="ebas_orig_time_res" value="5mn" />
  <attribute name="ebas_station_code" value="CV0001G" />
  <attribute name="ebas_platform_code" value="CV0001S" />
  <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
  <attribute name="ebas_station_gaw_id" value="CVO" />
  <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
  <attribute name="ebas_station_land_use" value="Gravel and stone" />
  <attribute name="ebas_station_setting" value="Coastal" />
  <attribute name="ebas_station_gaw_type" value="G" />
  <attribute name="ebas_station_wmo_region" value="1" />
  <attribute name="ebas_station_latitude" value="16.86403" />
  <attribute name="ebas_station_longitude" value="-24.86752" />
  <attribute name="ebas_station_altitude" value="10.0 m" />
  <attribute name="ebas_measurement_height" value="7.5 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_component" value="nitrogen_monoxide" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="GB12L" />
  <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
  <attribute name="ebas_instrument_name" value="CVO_AQD_Nox" />
  <attribute name="ebas_instrument_manufacturer" value="airqualitydesign+airqualitydesign" />
  <attribute name="ebas_instrument_model" value="BLC+Custom" />
  <attribute name="ebas_instrument_serial_number" value="305400-Noxy" />
  <attribute name="ebas_method_ref" value="GB12L_AQD_NOx" />
  <attribute name="ebas_standard_method" value="None" />
  <attribute name="ebas_inlet_type" value="Hat or hood" />
  <attribute name="ebas_inlet_description" value="Dark. Downward facing inlet with hood" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_humidity_temperaure_control_description" value="Passive, inlet air heated from atmospheric to converter temperature" />
  <attribute name="ebas_detection_limit_expl" value="2sigma standard deviation of filtered nighttime NO concentration" />
  <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
  <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
  <attribute name="ebas_organization" value="GB12L, National Centre for Atmospheric Science, NCAS, , Department of Chemistry, University of York, YO10 5DD, York, United Kingdom" />
  <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
  <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
  <attribute name="ebas_framework_description" value="ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., 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., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
  <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
  <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
  <attribute name="ebas_originator" value="Andersen, Simone, sta516@york.ac.uk, University of York, UofY, Wolfson Atmospheric Chemistry Laboratory, WACL, Heslington, YO10 5DD, York, UK" />
  <attribute name="ebas_submitter" value="Andersen, Simone, sta516@york.ac.uk, University of York, UofY, Wolfson Atmospheric Chemistry Laboratory, WACL, Heslington, YO10 5DD, York, UK" />
  <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. In the event of publications using this data the author must contact the Atmospheric Measurement Facility (AMF), National Centre for Atmospheric Science (NCAS)." />
  <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;Andersen, S., Andersen, S., Andersen, S., Andersen, S., Andersen, S., 2021, Nitrogen_monoxide at Cape Verde Atmospheric Observatory, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/KGN3-PWC8&quot;,&#xA;    &quot;Set type code&quot;: &quot;TU&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;KGN3-PWC8.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/KGN3-PWC8&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/KGN3-PWC8&quot;,&#xA;    &quot;File creation&quot;: &quot;2024-02-11T00:59:23.460350 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2019-04-25T11:15:43.003000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20120101000000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20210201111133&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Version description&quot;: &quot;initial revision, manually inspected&quot;,&#xA;    &quot;Statistics&quot;: &quot;arithmetic mean&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;5y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1h&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1h&quot;,&#xA;    &quot;Orig. time res.&quot;: &quot;5mn&quot;,&#xA;    &quot;Station code&quot;: &quot;CV0001G&quot;,&#xA;    &quot;Platform code&quot;: &quot;CV0001S&quot;,&#xA;    &quot;Station name&quot;: &quot;Cape Verde Atmospheric Observatory&quot;,&#xA;    &quot;Station GAW-ID&quot;: &quot;CVO&quot;,&#xA;    &quot;Station GAW-Name&quot;: &quot;Cape Verde Observatory&quot;,&#xA;    &quot;Station land use&quot;: &quot;Gravel and stone&quot;,&#xA;    &quot;Station setting&quot;: &quot;Coastal&quot;,&#xA;    &quot;Station GAW type&quot;: &quot;G&quot;,&#xA;    &quot;Station WMO region&quot;: &quot;1&quot;,&#xA;    &quot;Station latitude&quot;: &quot;16.86403&quot;,&#xA;    &quot;Station longitude&quot;: &quot;-24.86752&quot;,&#xA;    &quot;Station altitude&quot;: &quot;10.0 m&quot;,&#xA;    &quot;Measurement height&quot;: &quot;7.5 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Component&quot;: &quot;nitrogen_monoxide&quot;,&#xA;    &quot;Matrix&quot;: &quot;air&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;GB12L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;chemiluminescence_photolytic&quot;,&#xA;    &quot;Instrument name&quot;: &quot;CVO_AQD_Nox&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;airqualitydesign+airqualitydesign&quot;,&#xA;    &quot;Instrument model&quot;: &quot;BLC+Custom&quot;,&#xA;    &quot;Instrument serial number&quot;: &quot;305400-Noxy&quot;,&#xA;    &quot;Method ref&quot;: &quot;GB12L_AQD_NOx&quot;,&#xA;    &quot;Standard method&quot;: &quot;None&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Hat or hood&quot;,&#xA;    &quot;Inlet description&quot;: &quot;Dark. Downward facing inlet with hood&quot;,&#xA;    &quot;Humidity/temperature control&quot;: &quot;None&quot;,&#xA;    &quot;Humidity/temperature control description&quot;: &quot;Passive, inlet air heated from atmospheric to converter temperature&quot;,&#xA;    &quot;Detection limit expl.&quot;: &quot;2sigma standard deviation of filtered nighttime NO concentration&quot;,&#xA;    &quot;Zero/negative values code&quot;: &quot;Zero/negative possible&quot;,&#xA;    &quot;Zero/negative values&quot;: &quot;Zero and neg. values may appear due to statistical variations at very low concentrations&quot;,&#xA;    &quot;Organization&quot;: &quot;GB12L, National Centre for Atmospheric Science, NCAS, , Department of Chemistry, University of York, YO10 5DD, York, United Kingdom&quot;,&#xA;    &quot;Framework acronym&quot;: &quot;ACTRIS, EMEP, GAW-WDCRG&quot;,&#xA;    &quot;Framework name&quot;: &quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases&quot;,&#xA;    &quot;Framework description&quot;: &quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., 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., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;,&#xA;    &quot;Framework contact name&quot;: &quot;Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth&quot;,&#xA;    &quot;Framework contact email&quot;: &quot;clm@nilu.no, kt@nilu.no, kt@nilu.no&quot;,&#xA;    &quot;Originator&quot;: &quot;Andersen, Simone, sta516@york.ac.uk, University of York, UofY, Wolfson Atmospheric Chemistry Laboratory, WACL, Heslington, YO10 5DD, York, UK&quot;,&#xA;    &quot;Submitter&quot;: &quot;Andersen, Simone, sta516@york.ac.uk, University of York, UofY, Wolfson Atmospheric Chemistry Laboratory, WACL, Heslington, YO10 5DD, York, UK&quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. In the event of publications using this data the author must contact the Atmospheric Measurement Facility (AMF), National Centre for Atmospheric Science (NCAS).&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="43848" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="5" />
  <dimension name="nitrogen_monoxide_nmol_per_mol_qc_flags" length="1" />
  <dimension name="nitrogen_monoxide_ug_N_per_m3_qc_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2012-01-01T00:30:00Z" />
    <attribute name="time_coverage_end" value="2016-12-31T23:30:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="3600.0" />
    <attribute name="time_coverage_duration" value="P0Y0M1826DT23H0M0.000S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-04-12" />
    <attribute name="nciso_version" value="2.4.7" />
  </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="nitrogen_monoxide_nmol_per_mol" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_nitrogen_monoxide_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="nitrogen_monoxide_nmol_per_mol_qc nitrogen_monoxide_nmol_per_mol_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="20210201111133" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="5mn" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="7.5 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrogen_monoxide" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB12L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="CVO_AQD_Nox" />
    <attribute name="ebas_instrument_manufacturer" value="airqualitydesign+airqualitydesign" />
    <attribute name="ebas_instrument_model" value="BLC+Custom" />
    <attribute name="ebas_instrument_serial_number" value="305400-Noxy" />
    <attribute name="ebas_method_ref" value="GB12L_AQD_NOx" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Dark. Downward facing inlet with hood" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Passive, inlet air heated from atmospheric to converter temperature" />
    <attribute name="ebas_detection_limit_expl" value="2sigma standard deviation of filtered nighttime NO concentration" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="GB12L, National Centre for Atmospheric Science, NCAS, , Department of Chemistry, University of York, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., 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., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. In the event of publications using this data the author must contact the Atmospheric Measurement Facility (AMF), National Centre for Atmospheric Science (NCAS)." />
    <attribute name="ebas_comment" value="The NO data has already been corrected using the nocturnal NO values. -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.6249228119. -- Data converted on export from EBAS from 'ug N/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 1.600197626." />
  </variable>
  <variable name="nitrogen_monoxide_nmol_per_mol_qc" shape="nitrogen_monoxide_nmol_per_mol_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="nitrogen_monoxide_nmol_per_mol_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrogen_monoxide_ug_N_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrogen_monoxide_expressed_as_nitrogen_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="nitrogen_monoxide_ug N_per_m3_qc nitrogen_monoxide_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="20210201111133" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="5mn" />
    <attribute name="ebas_station_code" value="CV0001G" />
    <attribute name="ebas_platform_code" value="CV0001S" />
    <attribute name="ebas_station_name" value="Cape Verde Atmospheric Observatory" />
    <attribute name="ebas_station_gaw_id" value="CVO" />
    <attribute name="ebas_station_gaw_name" value="Cape Verde Observatory" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="16.86403" />
    <attribute name="ebas_station_longitude" value="-24.86752" />
    <attribute name="ebas_station_altitude" value="10.0 m" />
    <attribute name="ebas_measurement_height" value="7.5 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrogen_monoxide" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB12L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="CVO_AQD_Nox" />
    <attribute name="ebas_instrument_manufacturer" value="airqualitydesign+airqualitydesign" />
    <attribute name="ebas_instrument_model" value="BLC+Custom" />
    <attribute name="ebas_instrument_serial_number" value="305400-Noxy" />
    <attribute name="ebas_method_ref" value="GB12L_AQD_NOx" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Dark. Downward facing inlet with hood" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Passive, inlet air heated from atmospheric to converter temperature" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="2sigma standard deviation of filtered nighttime NO concentration" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="GB12L, National Centre for Atmospheric Science, NCAS, , Department of Chemistry, University of York, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., 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., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. In the event of publications using this data the author must contact the Atmospheric Measurement Facility (AMF), National Centre for Atmospheric Science (NCAS)." />
    <attribute name="ebas_comment" value="The NO data has already been corrected using the nocturnal NO values. -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.6249228119." />
  </variable>
  <variable name="nitrogen_monoxide_ug_N_per_m3_qc" shape="nitrogen_monoxide_ug_N_per_m3_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="nitrogen_monoxide_ug_N_per_m3_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>
