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  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Nitrogen oxides at La Réunion - Maïdo atmospheric observatory" />
  <attribute name="keywords" value="mole_fraction_of_nox_in_air, nitrogen_dioxide, mole_fraction_of_nitrogen_monoxide_in_air, GAW-WDCRG, mass_concentration_of_nitrogen_dioxide_expressed_as_nitrogen_in_air, La Réunion - Maïdo atmospheric observatory, ACTRIS, FR0026R, NOx, mole_fraction_of_nitrogen_dioxide_in_air, nitrogen_monoxide, air, mass_concentration_of_nox_expressed_as_nitrogen_in_air, EMEP, mass_concentration_of_nitrogen_monoxide_expressed_as_nitrogen_in_air" />
  <attribute name="id" value="MTDN-4P9C.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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
  <attribute name="doi" value="https://doi.org/10.48597/MTDN-4P9C" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Colomb, A., Metzger, J., ACTRIS, EMEP, GAW-WDCRG, 2025, Nitrogen oxides at La Réunion - Maïdo atmospheric observatory, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/MTDN-4P9C" />
  <attribute name="summary" value="Nitrogen oxides at La Réunion - Maïdo 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: NOx in air (mole_fraction_of_nox_in_air), NOx in air (mass_concentration_of_nox_expressed_as_nitrogen_in_air), NOx in air (mole_fraction_of_nox_in_air), NOx in air (mass_concentration_of_nox_expressed_as_nitrogen_in_air), NOx in air (mole_fraction_of_nox_in_air), NOx in air (mass_concentration_of_nox_expressed_as_nitrogen_in_air), NOx in air (mole_fraction_of_nox_in_air), NOx in air (mass_concentration_of_nox_expressed_as_nitrogen_in_air), nitrogen_dioxide in air (mole_fraction_of_nitrogen_dioxide_in_air), nitrogen_dioxide in air (mass_concentration_of_nitrogen_dioxide_expressed_as_nitrogen_in_air), nitrogen_dioxide in air (mole_fraction_of_nitrogen_dioxide_in_air), nitrogen_dioxide in air (mass_concentration_of_nitrogen_dioxide_expressed_as_nitrogen_in_air), nitrogen_dioxide in air (mole_fraction_of_nitrogen_dioxide_in_air), nitrogen_dioxide in air (mass_concentration_of_nitrogen_dioxide_expressed_as_nitrogen_in_air), nitrogen_dioxide in air (mole_fraction_of_nitrogen_dioxide_in_air), nitrogen_dioxide in air (mass_concentration_of_nitrogen_dioxide_expressed_as_nitrogen_in_air), 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), 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), 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), 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="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, 15, avenue René Cassin, CS 92003, 97744, Saint-Denis, France" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2025-10-13T00:00:00 UTC" />
  <attribute name="date_metadata_modified" value="2025-10-13T00:00:00 UTC" />
  <attribute name="creator_name" value="Aurelie Colomb, Jean-Marc Metzger" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value=", jean-marc.metzger@univ-reunion.fr" />
  <attribute name="creator_institution" value=", &quot;Observatoire de Physique de l Atmosphere de la Reunion, Laboratoire de l Atmosphere et des Cyclones, OPAR&quot;" />
  <attribute name="contributor_name" value="Nicolas Pascal" />
  <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 (-21.079449 55.383006 2160.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
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  <attribute name="time_coverage_start" value="2024-01-01T00:00:00 UTC" />
  <attribute name="time_coverage_end" value="2025-01-01T00:00:00 UTC" />
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  <attribute name="time_coverage_resolution" value="P0000-00-00T01:00:00" />
  <attribute name="timezone" value="UTC" />
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  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Colomb, A., Metzger, J., ACTRIS, EMEP, GAW-WDCRG, 2025, Nitrogen oxides at La Réunion - Maïdo atmospheric observatory, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/MTDN-4P9C" />
  <attribute name="ebas_set_type_code" value="TU" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="MTDN-4P9C.nc" />
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  <attribute name="ebas_file_creation" value="2025-12-11T13:18:36.485574 UTC" />
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  <attribute name="ebas_revision_date" value="20251013000000" />
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  <attribute name="ebas_version_description" value="initial revision, manually inspected" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="1y" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_sample_duration" value="1h" />
  <attribute name="ebas_orig_time_res" value="1mn" />
  <attribute name="ebas_station_code" value="FR0026R" />
  <attribute name="ebas_platform_code" value="FR0026S" />
  <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
  <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
  <attribute name="ebas_station_gaw_id" value="RUN" />
  <attribute name="ebas_station_gaw_name" value="La Réunion" />
  <attribute name="ebas_station_land_use" value="Gravel and stone" />
  <attribute name="ebas_station_setting" value="Mountain" />
  <attribute name="ebas_station_gaw_type" value="G" />
  <attribute name="ebas_station_wmo_region" value="1" />
  <attribute name="ebas_station_latitude" value="-21.079449" />
  <attribute name="ebas_station_longitude" value="55.383006" />
  <attribute name="ebas_station_altitude" value="2160.0 m" />
  <attribute name="ebas_measurement_height" value="8.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="FR14L" />
  <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
  <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
  <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
  <attribute name="ebas_instrument_model" value="T200UP" />
  <attribute name="ebas_instrument_serial_number" value="112" />
  <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
  <attribute name="ebas_standard_method" value="None" />
  <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
  <attribute name="ebas_inlet_type" value="Hat or hood" />
  <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
  <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
  <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
  <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
  <attribute name="ebas_detection_limit_expl" value="given by instrument constructor" />
  <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
  <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
  <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
  <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
  <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
  <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
  <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
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  <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;Colomb, A., Metzger, J., ACTRIS, EMEP, GAW-WDCRG, 2025, Nitrogen oxides at La Réunion - Maïdo atmospheric observatory, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/MTDN-4P9C&quot;,&#xA;    &quot;Set type code&quot;: &quot;TU&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;MTDN-4P9C.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/MTDN-4P9C&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/MTDN-4P9C&quot;,&#xA;    &quot;File creation&quot;: &quot;2025-12-11T13:18:36.485574 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2025-10-14T14:31:08.024823 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20240101000000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20251013000000&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Version description&quot;: &quot;initial revision, manually inspected&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;1y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1h&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1h&quot;,&#xA;    &quot;Orig. time res.&quot;: &quot;1mn&quot;,&#xA;    &quot;Station code&quot;: &quot;FR0026R&quot;,&#xA;    &quot;Platform code&quot;: &quot;FR0026S&quot;,&#xA;    &quot;Station name&quot;: &quot;La Réunion - Maïdo atmospheric observatory&quot;,&#xA;    &quot;Station WDCA-ID&quot;: &quot;GAWAFR__RUN&quot;,&#xA;    &quot;Station GAW-ID&quot;: &quot;RUN&quot;,&#xA;    &quot;Station GAW-Name&quot;: &quot;La Réunion&quot;,&#xA;    &quot;Station land use&quot;: &quot;Gravel and stone&quot;,&#xA;    &quot;Station setting&quot;: &quot;Mountain&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;-21.079449&quot;,&#xA;    &quot;Station longitude&quot;: &quot;55.383006&quot;,&#xA;    &quot;Station altitude&quot;: &quot;2160.0 m&quot;,&#xA;    &quot;Measurement height&quot;: &quot;8.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Matrix&quot;: &quot;air&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;FR14L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;chemiluminescence_photolytic&quot;,&#xA;    &quot;Instrument name&quot;: &quot;MAIDO_chem_photo_Teledyne_T200UP-112&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;Teledyne&quot;,&#xA;    &quot;Instrument model&quot;: &quot;T200UP&quot;,&#xA;    &quot;Instrument serial number&quot;: &quot;112&quot;,&#xA;    &quot;Method ref&quot;: &quot;FR14L_Teledyne_T200UP_RUN&quot;,&#xA;    &quot;Standard method&quot;: &quot;None&quot;,&#xA;    &quot;Calibration standard ID&quot;: &quot;Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Hat or hood&quot;,&#xA;    &quot;Ozone correction&quot;: &quot;Not corrected for reaction with O3 in the inlet&quot;,&#xA;    &quot;Water vapor correction&quot;: &quot;Not corrected for water vapor quenching in CLD&quot;,&#xA;    &quot;Humidity/temperature control&quot;: &quot;Other (see metadata)&quot;,&#xA;    &quot;Humidity/temperature control description&quot;: &quot;Temperature conditioning at 22 deg.C&quot;,&#xA;    &quot;Detection limit expl.&quot;: &quot;given by instrument constructor&quot;,&#xA;    &quot;Measurement uncertainty expl.&quot;: &quot;includes statistical uncertainty of individual sample and calibration uncertainty&quot;,&#xA;    &quot;Zero/negative values code&quot;: &quot;Zero possible&quot;,&#xA;    &quot;Zero/negative values&quot;: &quot;Negative and zero values may appear if the concentration is under limit of detection&quot;,&#xA;    &quot;Organization&quot;: &quot;FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , \&quot;15, avenue René Cassin\&quot;, CS 92003, 97744, Saint-Denis, France&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;Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France&quot;,&#xA;    &quot;Submitter&quot;: &quot;Pascal, Nicolas, , , , , , , , , &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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment&quot;&#xA;}" />
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  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
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  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <dimension name="NOx_nmol_per_mol_amean_qc_flags" length="1" />
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  <dimension name="NOx_nmol_per_mol_prec1587_qc_flags" length="1" />
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  <dimension name="nitrogen_monoxide_nmol_per_mol_prec1587_qc_flags" length="1" />
  <dimension name="nitrogen_monoxide_ug_N_per_m3_prec1587_qc_flags" length="1" />
  <dimension name="nitrogen_monoxide_nmol_per_mol_perc8413_qc_flags" length="1" />
  <dimension name="nitrogen_monoxide_ug_N_per_m3_perc8413_qc_flags" length="1" />
  <dimension name="nitrogen_monoxide_nmol_per_mol_stddev_qc_flags" length="1" />
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    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="NOx" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <attribute name="ebas_detection_limit_expl" value="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281. -- Data converted on export from EBAS from 'ug N/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 1.6001976." />
  </variable>
  <variable name="NOx_nmol_per_mol_amean_qc" shape="NOx_nmol_per_mol_amean_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="NOx_nmol_per_mol_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="NOx_ug_N_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nox_expressed_as_nitrogen_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="NOx_ug N_per_m3_amean_qc NOx_ug N_per_m3_amean_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="20251013000000" />
    <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="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="NOx" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <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="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
  </variable>
  <variable name="NOx_ug_N_per_m3_amean_qc" shape="NOx_ug_N_per_m3_amean_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="NOx_ug_N_per_m3_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="NOx_nmol_per_mol_prec1587" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_nox_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="NOx_nmol_per_mol_prec1587_qc NOx_nmol_per_mol_prec1587_ebasmetadata" />
    <attribute name="cell_methods" value="time: percentile:15.87" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20251013000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="percentile:15.87" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="NOx" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <attribute name="ebas_detection_limit_expl" value="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.624923. -- Data converted on export from EBAS from 'ug N/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 1.60020." />
  </variable>
  <variable name="NOx_nmol_per_mol_prec1587_qc" shape="NOx_nmol_per_mol_prec1587_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="NOx_nmol_per_mol_prec1587_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="NOx_ug_N_per_m3_prec1587" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nox_expressed_as_nitrogen_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="NOx_ug N_per_m3_prec1587_qc NOx_ug N_per_m3_prec1587_ebasmetadata" />
    <attribute name="cell_methods" value="time: percentile:15.87" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20251013000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="percentile:15.87" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="NOx" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <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="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.624923." />
  </variable>
  <variable name="NOx_ug_N_per_m3_prec1587_qc" shape="NOx_ug_N_per_m3_prec1587_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="NOx_ug_N_per_m3_prec1587_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="NOx_nmol_per_mol_perc8413" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_nox_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="NOx_nmol_per_mol_perc8413_qc NOx_nmol_per_mol_perc8413_ebasmetadata" />
    <attribute name="cell_methods" value="time: percentile:84.13" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20251013000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="percentile:84.13" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="NOx" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <attribute name="ebas_detection_limit_expl" value="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.624923. -- Data converted on export from EBAS from 'ug N/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 1.60020." />
  </variable>
  <variable name="NOx_nmol_per_mol_perc8413_qc" shape="NOx_nmol_per_mol_perc8413_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="NOx_nmol_per_mol_perc8413_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="NOx_ug_N_per_m3_perc8413" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nox_expressed_as_nitrogen_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="NOx_ug N_per_m3_perc8413_qc NOx_ug N_per_m3_perc8413_ebasmetadata" />
    <attribute name="cell_methods" value="time: percentile:84.13" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20251013000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="percentile:84.13" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="NOx" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <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="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.624923." />
  </variable>
  <variable name="NOx_ug_N_per_m3_perc8413_qc" shape="NOx_ug_N_per_m3_perc8413_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="NOx_ug_N_per_m3_perc8413_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="NOx_nmol_per_mol_stddev" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_nox_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="NOx_nmol_per_mol_stddev_qc NOx_nmol_per_mol_stddev_ebasmetadata" />
    <attribute name="cell_methods" value="time: standard_deviation" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20251013000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="stddev" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="NOx" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <attribute name="ebas_detection_limit_expl" value="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281. -- Data converted on export from EBAS from 'ug N/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 1.6001976." />
  </variable>
  <variable name="NOx_nmol_per_mol_stddev_qc" shape="NOx_nmol_per_mol_stddev_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="NOx_nmol_per_mol_stddev_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="NOx_ug_N_per_m3_stddev" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nox_expressed_as_nitrogen_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="NOx_ug N_per_m3_stddev_qc NOx_ug N_per_m3_stddev_ebasmetadata" />
    <attribute name="cell_methods" value="time: standard_deviation" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20251013000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="stddev" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="NOx" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <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="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
  </variable>
  <variable name="NOx_ug_N_per_m3_stddev_qc" shape="NOx_ug_N_per_m3_stddev_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="NOx_ug_N_per_m3_stddev_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrogen_dioxide_nmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_nitrogen_dioxide_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="nitrogen_dioxide_nmol_per_mol_amean_qc nitrogen_dioxide_nmol_per_mol_amean_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="20251013000000" />
    <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="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrogen_dioxide" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <attribute name="ebas_detection_limit_expl" value="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281. -- Data converted on export from EBAS from 'ug N/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 1.6001976." />
  </variable>
  <variable name="nitrogen_dioxide_nmol_per_mol_amean_qc" shape="nitrogen_dioxide_nmol_per_mol_amean_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_dioxide_nmol_per_mol_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrogen_dioxide_ug_N_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrogen_dioxide_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_dioxide_ug N_per_m3_amean_qc nitrogen_dioxide_ug N_per_m3_amean_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="20251013000000" />
    <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="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrogen_dioxide" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <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="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
  </variable>
  <variable name="nitrogen_dioxide_ug_N_per_m3_amean_qc" shape="nitrogen_dioxide_ug_N_per_m3_amean_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_dioxide_ug_N_per_m3_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrogen_dioxide_nmol_per_mol_prec1587" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_nitrogen_dioxide_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="nitrogen_dioxide_nmol_per_mol_prec1587_qc nitrogen_dioxide_nmol_per_mol_prec1587_ebasmetadata" />
    <attribute name="cell_methods" value="time: percentile:15.87" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20251013000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="percentile:15.87" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrogen_dioxide" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <attribute name="ebas_detection_limit_expl" value="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.624923. -- Data converted on export from EBAS from 'ug N/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 1.60020." />
  </variable>
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    <attribute name="units" value="1" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrogen_dioxide_ug_N_per_m3_prec1587" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrogen_dioxide_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_dioxide_ug N_per_m3_prec1587_qc nitrogen_dioxide_ug N_per_m3_prec1587_ebasmetadata" />
    <attribute name="cell_methods" value="time: percentile:15.87" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20251013000000" />
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    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="percentile:15.87" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrogen_dioxide" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR14L" />
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    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
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    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
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    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.624923." />
  </variable>
  <variable name="nitrogen_dioxide_ug_N_per_m3_prec1587_qc" shape="nitrogen_dioxide_ug_N_per_m3_prec1587_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="nitrogen_dioxide_ug_N_per_m3_prec1587_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrogen_dioxide_nmol_per_mol_perc8413" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_nitrogen_dioxide_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="nitrogen_dioxide_nmol_per_mol_perc8413_qc nitrogen_dioxide_nmol_per_mol_perc8413_ebasmetadata" />
    <attribute name="cell_methods" value="time: percentile:84.13" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20251013000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="percentile:84.13" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrogen_dioxide" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR14L" />
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    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
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    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
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    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
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    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
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    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.624923. -- Data converted on export from EBAS from 'ug N/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 1.60020." />
  </variable>
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrogen_dioxide_ug_N_per_m3_perc8413" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrogen_dioxide_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_dioxide_ug N_per_m3_perc8413_qc nitrogen_dioxide_ug N_per_m3_perc8413_ebasmetadata" />
    <attribute name="cell_methods" value="time: percentile:84.13" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20251013000000" />
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    <attribute name="ebas_statistics" value="percentile:84.13" />
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    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
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    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrogen_dioxide" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR14L" />
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    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
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    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
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    <attribute name="ebas_inlet_type" value="Hat or hood" />
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    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.624923." />
  </variable>
  <variable name="nitrogen_dioxide_ug_N_per_m3_perc8413_qc" shape="nitrogen_dioxide_ug_N_per_m3_perc8413_qc_flags time" type="int">
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  <variable name="nitrogen_dioxide_ug_N_per_m3_perc8413_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrogen_dioxide_nmol_per_mol_stddev" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_nitrogen_dioxide_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="nitrogen_dioxide_nmol_per_mol_stddev_qc nitrogen_dioxide_nmol_per_mol_stddev_ebasmetadata" />
    <attribute name="cell_methods" value="time: standard_deviation" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20251013000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="stddev" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrogen_dioxide" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <attribute name="ebas_detection_limit_expl" value="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281. -- Data converted on export from EBAS from 'ug N/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 1.6001976." />
  </variable>
  <variable name="nitrogen_dioxide_nmol_per_mol_stddev_qc" shape="nitrogen_dioxide_nmol_per_mol_stddev_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_dioxide_nmol_per_mol_stddev_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrogen_dioxide_ug_N_per_m3_stddev" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrogen_dioxide_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_dioxide_ug N_per_m3_stddev_qc nitrogen_dioxide_ug N_per_m3_stddev_ebasmetadata" />
    <attribute name="cell_methods" value="time: standard_deviation" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20251013000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="stddev" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrogen_dioxide" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <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="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
  </variable>
  <variable name="nitrogen_dioxide_ug_N_per_m3_stddev_qc" shape="nitrogen_dioxide_ug_N_per_m3_stddev_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_dioxide_ug_N_per_m3_stddev_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrogen_monoxide_nmol_per_mol_amean" 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_amean_qc nitrogen_monoxide_nmol_per_mol_amean_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="20251013000000" />
    <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="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 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="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <attribute name="ebas_detection_limit_expl" value="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281. -- Data converted on export from EBAS from 'ug N/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 1.6001976." />
  </variable>
  <variable name="nitrogen_monoxide_nmol_per_mol_amean_qc" shape="nitrogen_monoxide_nmol_per_mol_amean_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_amean_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_amean" 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_amean_qc nitrogen_monoxide_ug N_per_m3_amean_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="20251013000000" />
    <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="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 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="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <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="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
  </variable>
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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" />
  </variable>
  <variable name="nitrogen_monoxide_ug_N_per_m3_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrogen_monoxide_nmol_per_mol_prec1587" 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_prec1587_qc nitrogen_monoxide_nmol_per_mol_prec1587_ebasmetadata" />
    <attribute name="cell_methods" value="time: percentile:15.87" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20251013000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="percentile:15.87" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 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="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <attribute name="ebas_detection_limit_expl" value="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.624923. -- Data converted on export from EBAS from 'ug N/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 1.60020." />
  </variable>
  <variable name="nitrogen_monoxide_nmol_per_mol_prec1587_qc" shape="nitrogen_monoxide_nmol_per_mol_prec1587_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_prec1587_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_prec1587" 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_prec1587_qc nitrogen_monoxide_ug N_per_m3_prec1587_ebasmetadata" />
    <attribute name="cell_methods" value="time: percentile:15.87" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20251013000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="percentile:15.87" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 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="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <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="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.624923." />
  </variable>
  <variable name="nitrogen_monoxide_ug_N_per_m3_prec1587_qc" shape="nitrogen_monoxide_ug_N_per_m3_prec1587_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="nitrogen_monoxide_ug_N_per_m3_prec1587_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrogen_monoxide_nmol_per_mol_perc8413" 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_perc8413_qc nitrogen_monoxide_nmol_per_mol_perc8413_ebasmetadata" />
    <attribute name="cell_methods" value="time: percentile:84.13" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20251013000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="percentile:84.13" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 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="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <attribute name="ebas_detection_limit_expl" value="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.624923. -- Data converted on export from EBAS from 'ug N/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 1.60020." />
  </variable>
  <variable name="nitrogen_monoxide_nmol_per_mol_perc8413_qc" shape="nitrogen_monoxide_nmol_per_mol_perc8413_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="nitrogen_monoxide_nmol_per_mol_perc8413_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_perc8413" 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_perc8413_qc nitrogen_monoxide_ug N_per_m3_perc8413_ebasmetadata" />
    <attribute name="cell_methods" value="time: percentile:84.13" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20251013000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="percentile:84.13" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 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="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <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="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.624923." />
  </variable>
  <variable name="nitrogen_monoxide_ug_N_per_m3_perc8413_qc" shape="nitrogen_monoxide_ug_N_per_m3_perc8413_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_perc8413_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrogen_monoxide_nmol_per_mol_stddev" 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_stddev_qc nitrogen_monoxide_nmol_per_mol_stddev_ebasmetadata" />
    <attribute name="cell_methods" value="time: standard_deviation" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20251013000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="stddev" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 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="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <attribute name="ebas_detection_limit_expl" value="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281. -- Data converted on export from EBAS from 'ug N/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 1.6001976." />
  </variable>
  <variable name="nitrogen_monoxide_nmol_per_mol_stddev_qc" shape="nitrogen_monoxide_nmol_per_mol_stddev_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_stddev_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_stddev" 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_stddev_qc nitrogen_monoxide_ug N_per_m3_stddev_ebasmetadata" />
    <attribute name="cell_methods" value="time: standard_deviation" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20251013000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="stddev" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="FR0026R" />
    <attribute name="ebas_platform_code" value="FR0026S" />
    <attribute name="ebas_station_name" value="La Réunion - Maïdo atmospheric observatory" />
    <attribute name="ebas_station_wdca_id" value="GAWAFR__RUN" />
    <attribute name="ebas_station_gaw_id" value="RUN" />
    <attribute name="ebas_station_gaw_name" value="La Réunion" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="1" />
    <attribute name="ebas_station_latitude" value="-21.079449" />
    <attribute name="ebas_station_longitude" value="55.383006" />
    <attribute name="ebas_station_altitude" value="2160.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 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="FR14L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="MAIDO_chem_photo_Teledyne_T200UP-112" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T200UP" />
    <attribute name="ebas_instrument_serial_number" value="112" />
    <attribute name="ebas_method_ref" value="FR14L_Teledyne_T200UP_RUN" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 1, Manufacturer: AIRLIQUIDE FRANCE INDUSTRIES, Batch: H320AG7 (traceable to NPL)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Not corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="Other (see metadata)" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature conditioning at 22 deg.C" />
    <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="given by instrument constructor" />
    <attribute name="ebas_measurement_uncertainty_expl" value="includes statistical uncertainty of individual sample and calibration uncertainty" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Negative and zero values may appear if the concentration is under limit of detection" />
    <attribute name="ebas_organization" value="FR14L, Observatoire des Sciences de l'Univers de la Réunion, OSUR, , &quot;15, avenue René Cassin&quot;, CS 92003, 97744, Saint-Denis, France" />
    <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="Metzger, Jean-Marc, jean-marc.metzger@univ-reunion.fr, Observatoire de Physique de l Atmosphere de la Reunion, OPAR, Laboratoire de l Atmosphere et des Cyclones, Universite de La Reunion - Batiment S4B, 15 avenue Rene Cassin - CS 92003, 97744, Saint-Denis Cedex 9, France" />
    <attribute name="ebas_submitter" value="Pascal, Nicolas, , , , , , , , , " />
    <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. For using this data for any kind of publications, you must contact the data originator(s), in terms of acknowledgment" />
    <attribute name="ebas_comment" value="raw to reported concentrations scaling applied,  converted by TC from FR0026R.20240101000000.20250404132421.chemiluminescence_photolytic.NOx.air.1y.1mn.FR14L_MAIDO_chem_photo_Teledyne_T200UP-112.FR14L_Teledyne_T200UP_RUN.lev0.nas ,no precision, uncertainty, dectection limit reported, No additional NO offset correction -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
  </variable>
  <variable name="nitrogen_monoxide_ug_N_per_m3_stddev_qc" shape="nitrogen_monoxide_ug_N_per_m3_stddev_qc_flags time" type="int">
    <attribute name="units" value="1" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
  </variable>
  <variable name="nitrogen_monoxide_ug_N_per_m3_stddev_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>
