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  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Ground based in situ observations of nitrogen_dioxide at Ispra (IT0004R) using chemiluminescence_molybdenum" />
  <attribute name="keywords" value="nitrogen_dioxide, ACTRIS, air, Ispra, IT0004R, mole_fraction_of_nitrogen_dioxide_in_air, mass_concentration_of_nitrogen_dioxide_expressed_as_nitrogen_in_air, EMEP" />
  <attribute name="id" value="7T6N-DMP8.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, EMEP" />
  <attribute name="acknowledgement" value="Request acknowledgement details from data originator" />
  <attribute name="doi" value="https://doi.org/10.48597/7T6N-DMP8" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="F Lagler, NR Jensen, F Lagler, F Lagler, F Lagler, nitrogen_dioxide - chemiluminescence_molybdenum at Ispra, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/7T6N-DMP8" />
  <attribute name="summary" value="Ground based in situ observations of nitrogen_dioxide at Ispra (IT0004R) using chemiluminescence_molybdenum. These measurements are gathered as a part of the following projects ACTRIS, EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: 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)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="IT04L, EC Joint Research Centre, EC-JRC-IES, Institute for Environment and Sustainability, Via Enrico Fermi 2749, 21027, Ispra, Italy" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2023-10-10T00:00:00 UTC" />
  <attribute name="date_metadata_modified" value="2023-10-10T00:00:00 UTC" />
  <attribute name="creator_name" value="F Lagler, NR Jensen, F Lagler, F Lagler, F Lagler" />
  <attribute name="creator_type" value="person" />
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  <attribute name="creator_institution" value=", , , , " />
  <attribute name="contributor_name" value="JP Putaud, JP Putaud, JP Putaud, JP Putaud" />
  <attribute name="contributor_role" value="data submitter, data submitter, data submitter, data submitter" />
  <attribute name="publisher_type" value="institution" />
  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_institution" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_email" value="ebas@nilu.no" />
  <attribute name="publisher_url" value="https://www.nilu.no/" />
  <attribute name="geospatial_bounds" value="POINT Z (45.8 8.633333 209.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="45.8" />
  <attribute name="geospatial_lat_max" type="double" value="45.8" />
  <attribute name="geospatial_lon_min" type="double" value="8.633333" />
  <attribute name="geospatial_lon_max" type="double" value="8.633333" />
  <attribute name="geospatial_vertical_min" type="double" value="209.0" />
  <attribute name="geospatial_vertical_max" type="double" value="209.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2017-01-01T00:00:00 UTC" />
  <attribute name="time_coverage_end" value="2022-01-01T00:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0005-00-00T00:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-00T01:00:00" />
  <attribute name="timezone" value="UTC" />
  <attribute name="ebas_data_definition" value="EBAS_1.1" />
  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="F Lagler, NR Jensen, F Lagler, F Lagler, F Lagler, nitrogen_dioxide - chemiluminescence_molybdenum at Ispra, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/7T6N-DMP8" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="7T6N-DMP8.nc" />
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  <attribute name="ebas_file_creation" value="2023-12-11T10:04:13.208048 UTC" />
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  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="5y" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_sample_duration" value="1h" />
  <attribute name="ebas_orig_time_res" value="10mn" />
  <attribute name="ebas_station_code" value="IT0004R" />
  <attribute name="ebas_platform_code" value="IT0004S" />
  <attribute name="ebas_station_name" value="Ispra" />
  <attribute name="ebas_station_wdca_id" value="GAWAIT__IPR" />
  <attribute name="ebas_station_gaw_id" value="IPR" />
  <attribute name="ebas_station_gaw_name" value="Ispra" />
  <attribute name="ebas_station_land_use" value="Other" />
  <attribute name="ebas_station_setting" value="Rural" />
  <attribute name="ebas_station_gaw_type" value="R" />
  <attribute name="ebas_station_wmo_region" value="6" />
  <attribute name="ebas_station_latitude" value="45.8" />
  <attribute name="ebas_station_longitude" value="8.633333" />
  <attribute name="ebas_station_altitude" value="209.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_component" value="nitrogen_dioxide" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="IT04L" />
  <attribute name="ebas_instrument_type" value="chemiluminescence_molybdenum" />
  <attribute name="ebas_instrument_name" value="JRC_42iTL_473" />
  <attribute name="ebas_instrument_manufacturer" value="Thermo" />
  <attribute name="ebas_instrument_model" value="42i" />
  <attribute name="ebas_method_ref" value="IT04L_Chemilum_1" />
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  <attribute name="ebas_inlet_type" value="Hat or hood" />
  <attribute name="ebas_inlet_description" value="PVC_home_made" />
  <attribute name="ebas_inlet_tube_material" value="Teflon" />
  <attribute name="ebas_inlet_tube_outer_diameter" value="60.0 mm" />
  <attribute name="ebas_inlet_tube_inner_diameter" value="27.0 mm" />
  <attribute name="ebas_maintenance_description" value="full cleaning twice a year" />
  <attribute name="ebas_flow_rate" value="1.0 l/min" />
  <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
  <attribute name="ebas_organization" value="IT04L, EC Joint Research Centre, EC-JRC-IES, Institute for Environment and Sustainability, Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
  <attribute name="ebas_originator" value="Lagler, F, , , , , , , , , " />
  <attribute name="ebas_submitter" value="Putaud, JP, jean.putaud@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
  <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
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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;F Lagler, NR Jensen, F Lagler, F Lagler, F Lagler, nitrogen_dioxide - chemiluminescence_molybdenum at Ispra, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/7T6N-DMP8&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;7T6N-DMP8.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/7T6N-DMP8&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/7T6N-DMP8&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-11T10:04:13.208048 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2023-11-22T11:05:41.583724 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20170101000000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20231010000000&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;5y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1h&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1h&quot;,&#xA;    &quot;Orig. time res.&quot;: &quot;10mn&quot;,&#xA;    &quot;Station code&quot;: &quot;IT0004R&quot;,&#xA;    &quot;Platform code&quot;: &quot;IT0004S&quot;,&#xA;    &quot;Station name&quot;: &quot;Ispra&quot;,&#xA;    &quot;Station WDCA-ID&quot;: &quot;GAWAIT__IPR&quot;,&#xA;    &quot;Station GAW-ID&quot;: &quot;IPR&quot;,&#xA;    &quot;Station GAW-Name&quot;: &quot;Ispra&quot;,&#xA;    &quot;Station land use&quot;: &quot;Other&quot;,&#xA;    &quot;Station setting&quot;: &quot;Rural&quot;,&#xA;    &quot;Station GAW type&quot;: &quot;R&quot;,&#xA;    &quot;Station WMO region&quot;: &quot;6&quot;,&#xA;    &quot;Station latitude&quot;: &quot;45.8&quot;,&#xA;    &quot;Station longitude&quot;: &quot;8.633333&quot;,&#xA;    &quot;Station altitude&quot;: &quot;209.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Component&quot;: &quot;nitrogen_dioxide&quot;,&#xA;    &quot;Matrix&quot;: &quot;air&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;IT04L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;chemiluminescence_molybdenum&quot;,&#xA;    &quot;Instrument name&quot;: &quot;JRC_42iTL_473&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;Thermo&quot;,&#xA;    &quot;Instrument model&quot;: &quot;42i&quot;,&#xA;    &quot;Method ref&quot;: &quot;IT04L_Chemilum_1&quot;,&#xA;    &quot;Standard method&quot;: &quot;SOP=EN14211:2012&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Hat or hood&quot;,&#xA;    &quot;Inlet description&quot;: &quot;PVC_home_made&quot;,&#xA;    &quot;Inlet tube material&quot;: &quot;Teflon&quot;,&#xA;    &quot;Inlet tube outer diameter&quot;: &quot;60.0 mm&quot;,&#xA;    &quot;Inlet tube inner diameter&quot;: &quot;27.0 mm&quot;,&#xA;    &quot;Maintenance description&quot;: &quot;full cleaning twice a year&quot;,&#xA;    &quot;Flow rate&quot;: &quot;1.0 l/min&quot;,&#xA;    &quot;Humidity/temperature control&quot;: &quot;Nafion dryer&quot;,&#xA;    &quot;Organization&quot;: &quot;IT04L, EC Joint Research Centre, EC-JRC-IES, Institute for Environment and Sustainability, Via Enrico Fermi 2749, , 21027, Ispra, Italy&quot;,&#xA;    &quot;Originator&quot;: &quot;Lagler, F, , , , , , , , , &quot;,&#xA;    &quot;Submitter&quot;: &quot;Putaud, JP, jean.putaud@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy&quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;Request acknowledgement details from data originator&quot;&#xA;}" />
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  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
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  <dimension name="time" length="35064" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="4" />
  <dimension name="nitrogen_dioxide_nmol_per_mol_amean_qc_flags" length="1" />
  <dimension name="nitrogen_dioxide_ug_N_per_m3_amean_qc_flags" length="1" />
  <dimension name="nitrogen_dioxide_nmol_per_mol_max_qc_flags" length="1" />
  <dimension name="nitrogen_dioxide_ug_N_per_m3_max_qc_flags" length="1" />
  <dimension name="nitrogen_dioxide_nmol_per_mol_min_qc_flags" length="1" />
  <dimension name="nitrogen_dioxide_ug_N_per_m3_min_qc_flags" length="1" />
  <dimension name="nitrogen_dioxide_nmol_per_mol_stddev_qc_flags" length="2" />
  <dimension name="nitrogen_dioxide_ug_N_per_m3_stddev_qc_flags" length="2" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2017-01-01T00:30:00Z" />
    <attribute name="time_coverage_end" value="2021-12-31T23:30:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="4499.0" />
    <attribute name="time_coverage_duration" value="P0Y0M1825DT23H0M0.000S" />
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    <attribute name="metadata_creation" value="2026-05-18" />
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    <attribute name="units" value="nmol/mol" />
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    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="ebas_station_longitude" value="8.633333" />
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    <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_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="PVC_home_made" />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <attribute name="ebas_inlet_tube_outer_diameter" value="60.0 mm" />
    <attribute name="ebas_inlet_tube_inner_diameter" value="27.0 mm" />
    <attribute name="ebas_maintenance_description" value="full cleaning twice a year" />
    <attribute name="ebas_flow_rate" value="1.0 l/min" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_organization" value="IT04L, EC Joint Research Centre, EC-JRC-IES, Institute for Environment and Sustainability, Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_originator" value="Jensen, NR, , , , , , , , , " />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </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="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>
