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  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Nitrogen_dioxide at Jarczew" />
  <attribute name="summary" value="Nitrogen_dioxide at Jarczew. These measurements are gathered as a part of the following projects EMEP, GAW-WDCRG and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ['nitrogen_dioxide in air (mass_concentration_of_nitrogen_dioxide_expressed_as_nitrogen_in_air)']" />
  <attribute name="keywords" value="Jarczew PL0002R nitrogen_dioxide air EMEP GAW-WDCRG mass_concentration_of_nitrogen_dioxide_expressed_as_nitrogen_in_air" />
  <attribute name="id" value="9CNS-A954.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="EMEP, GAW-WDCRG" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/9CNS-A954" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Bogucka, M., EMEP, GAW-WDCRG, 2024, Nitrogen_dioxide at Jarczew, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/9CNS-A954" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="PL01L &quot;Institute of Meteorology and Water Management - National Research Institute&quot; &quot;IMWM - NRI&quot; &quot;Podlesna 61, PL-01673 WARSZAWA, Poland&quot;" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2024-06-21T11:32:39.485166Z" />
  <attribute name="date_metadata_modified" value="2024-06-21T11:32:39 UTC" />
  <attribute name="creator_name" value="Magdalena Bogucka" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="" />
  <attribute name="creator_institution" value="" />
  <attribute name="contributor_name" value="Magdalena Bogucka" />
  <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 (51.814408 21.972419 180.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="51.814408" />
  <attribute name="geospatial_lat_max" type="double" value="51.814408" />
  <attribute name="geospatial_lon_min" type="double" value="21.972419" />
  <attribute name="geospatial_lon_max" type="double" value="21.972419" />
  <attribute name="geospatial_vertical_min" type="double" value="180.0" />
  <attribute name="geospatial_vertical_max" type="double" value="180.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2014-01-01T06:00:00 UTC" />
  <attribute name="time_coverage_end" value="2024-01-01T06:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0010-00-00T00:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-01T00:00:00" />
  <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="Bogucka, M., EMEP, GAW-WDCRG, 2024, Nitrogen_dioxide at Jarczew, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/9CNS-A954" />
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  <attribute name="ebas_timezone" value="UTC" />
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  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/9CNS-A954" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/9CNS-A954" />
  <attribute name="ebas_file_creation" value="2026-03-25T21:23:52.786466Z" />
  <attribute name="ebas_export_state" value="2024-06-21T11:32:39.485166Z" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="2014-01-01T06:00:00.000000Z" />
  <attribute name="ebas_revision_date" value="2024-06-21T11:32:39.485166Z" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="initial revision, manually inspected" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="10y" />
  <attribute name="ebas_resolution_code" value="1d" />
  <attribute name="ebas_sample_duration" value="1d" />
  <attribute name="ebas_orig_time_res" value="1d" />
  <attribute name="ebas_station_code" value="PL0002R" />
  <attribute name="ebas_platform_code" value="PL0002S" />
  <attribute name="ebas_station_name" value="Jarczew" />
  <attribute name="ebas_station_gaw_id" value="JCZ" />
  <attribute name="ebas_station_gaw_name" value="Jarczew" />
  <attribute name="ebas_station_land_use" value="Agricultural" />
  <attribute name="ebas_station_setting" value="Rural" />
  <attribute name="ebas_station_gaw_type" value="R" />
  <attribute name="ebas_station_wmo_region" type="long" value="6" />
  <attribute name="ebas_station_latitude" type="double" value="51.814408" />
  <attribute name="ebas_station_longitude" type="double" value="21.972419" />
  <attribute name="ebas_station_altitude" value="180.0 m" />
  <attribute name="ebas_measurement_altitude" value="180.0 m" />
  <attribute name="ebas_measurement_height" value="2.24 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="PL01L" />
  <attribute name="ebas_instrument_type" value="abs_solution" />
  <attribute name="ebas_instrument_name" value="abs_02" />
  <attribute name="ebas_instrument_manufacturer" value="IMWM" />
  <attribute name="ebas_instrument_model" value="IMWM_abs_solution" />
  <attribute name="ebas_method_ref" value="PL01L_spectrophotometric_griess" />
  <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
  <attribute name="ebas_inlet_type" value="Downward-facing tube" />
  <attribute name="ebas_inlet_description" value="Downward facing" />
  <attribute name="ebas_coating_solution" value="TGS-ANSA" />
  <attribute name="ebas_blank_correction" value="Blank corrected" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head." />
  <attribute name="ebas_detection_limit" value="0.2 ug N/m3" />
  <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
  <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
  <attribute name="ebas_organization" value="PL01L, Institute of Meteorology and Water Management - National Research Institute, IMWM - NRI, , &quot;Podlesna 61, PL-01673 WARSZAWA, Poland&quot;, , , , " />
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  <attribute name="ebas_framework_contact_name" value="" />
  <attribute name="ebas_framework_contact_email" value="" />
  <attribute name="ebas_originator" value="&quot;Bogucka, Magdalena, , , , , , , , , &quot;" />
  <attribute name="ebas_submitter" value="&quot;Bogucka, Magdalena, , , , , , , , , &quot;" />
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  <attribute name="Metadata_Conventions" value="Unidata Dataset Discovery v1.0" />
  <attribute name="geospatial_lat_units" value="degrees_north" />
  <attribute name="geospatial_lon_units" value="degrees_east" />
  <attribute name="standard_name_vocabulary" value="CF-1.7, ACDD-1.3" />
  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
  <attribute name="_CoordSysBuilder" value="ucar.nc2.internal.dataset.conv.CF1Convention" />
  <dimension name="time" length="3652" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="10" />
  <dimension name="nitrogen_dioxide_qc_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2014-01-01T18:00:00Z" />
    <attribute name="time_coverage_end" value="2023-12-31T18:00:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="86400.0" />
    <attribute name="time_coverage_duration" value="P0Y0M3651DT0H0M0.000S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-18" />
    <attribute name="nciso_version" value="2.4.8" />
  </group>
  <variable name="time_bnds" shape="time tbnds" type="double">
    <attribute name="long_name" value="time bounds for measurement" />
  </variable>
  <variable name="metadata_time_bnds" shape="metadata_time tbnds" type="double">
    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
  </variable>
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    <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_qc nitrogen_dioxide_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="2024-06-21T11:32:39.485166Z" />
    <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="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="PL0002R" />
    <attribute name="ebas_platform_code" value="PL0002S" />
    <attribute name="ebas_station_name" value="Jarczew" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="51.814408" />
    <attribute name="ebas_station_longitude" type="double" value="21.972419" />
    <attribute name="ebas_station_altitude" value="180.0 m" />
    <attribute name="ebas_measurement_altitude" value="180.0 m" />
    <attribute name="ebas_measurement_height" value="2.24 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="PL01L" />
    <attribute name="ebas_instrument_type" value="abs_solution" />
    <attribute name="ebas_instrument_name" value="abs_02" />
    <attribute name="ebas_instrument_manufacturer" value="IMWM" />
    <attribute name="ebas_instrument_model" value="IMWM_abs_solution" />
    <attribute name="ebas_method_ref" value="PL01L_spectrophotometric_griess" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
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    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head." />
    <attribute name="ebas_detection_limit" value="0.2 ug N/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
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    <attribute name="ebas_framework_contact_email" value="" />
    <attribute name="ebas_originator" value="&quot;Bogucka, Magdalena, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Bogucka, Magdalena, , , , , , , , , &quot;" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/nitrogendioxidemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="nitrogen dioxide mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_constraints_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/expressedasnitrogen" />
    <attribute name="actris_constraints_preferred_term" value="expressed as nitrogen" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="absorption solution sampler" />
    <attribute name="actris_temporal_resolution" value="P1D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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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_dioxide_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 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
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    <attribute name="_CoordinateAxisType" value="Time" />
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  <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 1900-01-01T00:00:00Z" />
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