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  <attribute name="title" value="Nitrogen oxides at Monte Cimone" />
  <attribute name="summary" value="Nitrogen oxides at Monte Cimone. These measurements are gathered as a part of the following projects CAMPAIGN, 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)', '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)']" />
  <attribute name="keywords" value="&quot;Monte Cimone&quot; IT0009R NOx nitrogen_dioxide nitrogen_monoxide air CAMPAIGN GAW-WDCRG mole_fraction_of_nox_in_air mass_concentration_of_nox_expressed_as_nitrogen_in_air mole_fraction_of_nitrogen_dioxide_in_air mass_concentration_of_nitrogen_dioxide_expressed_as_nitrogen_in_air mole_fraction_of_nitrogen_monoxide_in_air mass_concentration_of_nitrogen_monoxide_expressed_as_nitrogen_in_air" />
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  <attribute name="project" value="CAMPAIGN, GAW-WDCRG" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/GYK6-7U4V" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Putero, D., Calzolari, F., Cristofanelli, P., CAMPAIGN, GAW-WDCRG, 2023, Nitrogen oxides at Monte Cimone, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/GYK6-7U4V" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="IT06L &quot;Institute of Atmospheric Sciences and Climate&quot; CNR-ISAC &quot;Section of Bologna&quot; &quot;Via Gobetti 101&quot; 40129 Bologna Italy" />
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  <attribute name="date_created" value="2024-09-01T14:15:43.512672Z" />
  <attribute name="date_metadata_modified" value="2023-12-04T14:39:43Z" />
  <attribute name="creator_name" value="Davide Putero, Francescopiero Calzolari, Paolo Cristofanelli" />
  <attribute name="creator_type" value="person" />
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  <attribute name="contributor_name" value="Davide Putero" />
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  <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" />
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  <attribute name="time_coverage_start" value="2022-07-12T00:00:00Z" />
  <attribute name="time_coverage_end" value="2022-07-20T00:00:00Z" />
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  <attribute name="ebas_citation" value="Putero, D., Calzolari, F., Cristofanelli, P., CAMPAIGN, GAW-WDCRG, 2023, Nitrogen oxides at Monte Cimone, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/GYK6-7U4V" />
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  <attribute name="ebas_startdate" value="2022-07-12T00:00:00.000000Z" />
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  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="initial revision, automatically inspected" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="8d" />
  <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="IT0009R" />
  <attribute name="ebas_platform_code" value="IT0009S" />
  <attribute name="ebas_station_name" value="Monte Cimone" />
  <attribute name="ebas_station_wdca_id" value="GAWAIT__CMN" />
  <attribute name="ebas_station_gaw_id" value="CMN" />
  <attribute name="ebas_station_gaw_name" value="Monte Cimone" />
  <attribute name="ebas_station_land_use" value="Remote park" />
  <attribute name="ebas_station_setting" value="Mountain" />
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  <attribute name="ebas_station_altitude" value="2165.0 m" />
  <attribute name="ebas_measurement_height" value="7.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="IT06L" />
  <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
  <attribute name="ebas_instrument_name" value="ThermoScientific_Tei42TL_CMN" />
  <attribute name="ebas_instrument_manufacturer" value="Thermo" />
  <attribute name="ebas_instrument_model" value="42i-TL" />
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  <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
  <attribute name="ebas_inlet_type" value="Hat or hood" />
  <attribute name="ebas_inlet_description" value="The air intake is composed by an external (outside building) steel pipe (internally covered by Teflon) and the internal (inside building) Pyrex pipe" />
  <attribute name="ebas_inlet_tube_material" value="Teflon" />
  <attribute name="ebas_ozone_correction" value="Corrected for reaction with O3 in the inlet" />
  <attribute name="ebas_water_vapor_correction" value="Corrected for water vapor quenching in CLD" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_humidity_temperaure_control_description" value="Passive, inlet air heated from atmospheric to converter temperature" />
  <attribute name="ebas_detection_limit_expl" value="Determined by zero noise" />
  <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/negative possible" />
  <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
  <attribute name="ebas_organization" value="IT06L, Institute of Atmospheric Sciences and Climate, CNR-ISAC, Section of Bologna, Via Gobetti 101, , 40129, Bologna, Italy" />
  <attribute name="ebas_framework_acronym" value="CAMPAIGN, GAW-WDCRG" />
  <attribute name="ebas_framework_name" value=", World Data Centre for Reactive Gases" />
  <attribute name="ebas_framework_description" value=", 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="Wenche Aas, Kjetil Tørseth" />
  <attribute name="ebas_framework_contact_email" value="waa@nilu.no, kt@nilu.no" />
  <attribute name="ebas_originator" value="&quot;Putero, Davide, d.putero@isac.cnr.it, Institute of Atmospheric Sciences and Climate, ISAC, , Via P. Gobetti 101, , I-40129, Bologna, Italy&quot;, &quot;Calzolari, Francescopiero, f.calzolari@isac.cnr.it, Institute of Atmospheric Sciences and Climate, ISAC, Institute for Atmospheric and Climate Science, Via P. Gobetti 101, , I-40129, Bologna, Italy, ORCID=0000-0003-4535-9626&quot;, &quot;Cristofanelli, Paolo, p.cristofanelli@isac.cnr.it, National Research Council of Italy, CNR, Institute for Atmospheric and Climate Science, Via Gobetti 101, , I-4019, Bologna, Italy&quot;" />
  <attribute name="ebas_submitter" value="&quot;Putero, Davide, d.putero@isac.cnr.it, Institute of Atmospheric Sciences and Climate, ISAC, , Via P. Gobetti 101, , I-40129, Bologna, Italy&quot;" />
  <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: CAMPAIGN, GAW-WDCRG. 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" />
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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" />
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  <dimension name="qc_NOx_nmol_per_mol_amean_flags" length="2" />
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  <dimension name="qc_nitrogen_monoxide_ug_N_per_m3_amean_flags" length="2" />
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  <dimension name="qc_nitrogen_monoxide_ug_N_per_m3_prec1587_flags" length="2" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="initial revision, automatically inspected" />
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    <attribute name="ebas_comment" value="Data corrected for night-time bias, water vapor and ozone interferences. -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.6249228. Detection limit converted from '0.18 nmol/mol' to '0.11249 ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.6249228. -- Data converted on export from EBAS from 'ug N/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 1.600198. Detection limit converted from '0.11249 ug N/m3' at 273.15 K, 1013.25 hPa to '0.18 nmol/mol', conversion factor 1.600198." />
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    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="cell_methods" value="time: mean" />
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    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="qc_NOx_nmol_per_mol_perc8413 meta_NOx_nmol_per_mol_perc8413" />
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    <attribute name="ebas_station_gaw_type" value="G" />
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    <attribute name="ebas_comment" value="Data corrected for night-time bias, water vapor and ozone interferences. -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.6249228. -- Data converted on export from EBAS from 'ug N/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 1.600198." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/nitrogenoxidesamountfraction" />
    <attribute name="actris_variable_preferred_term" value="nitrogen oxides amount fraction" />
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  <variable name="meta_NOx_nmol_per_mol_perc8413" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="standard_name" value="mass_concentration_of_nox_expressed_as_nitrogen_in_air" />
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    <attribute name="actris_variable_preferred_term" value="nitrogen oxides amount fraction" />
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    <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="qc_NOx_ug_N_per_m3_stddev meta_NOx_ug_N_per_m3_stddev" />
    <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="2023-12-04T14:39:43.554915Z" />
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    <attribute name="ebas_version_description" value="initial revision, automatically 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" />
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    <attribute name="ebas_platform_code" value="IT0009S" />
    <attribute name="ebas_station_name" value="Monte Cimone" />
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    <attribute name="ebas_station_gaw_id" value="CMN" />
    <attribute name="ebas_station_gaw_name" value="Monte Cimone" />
    <attribute name="ebas_station_land_use" value="Remote park" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="44.19320533600754" />
    <attribute name="ebas_station_longitude" type="double" value="10.701429456423515" />
    <attribute name="ebas_station_altitude" value="2165.0 m" />
    <attribute name="ebas_measurement_height" value="7.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="NOx" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="IT06L" />
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    <attribute name="ebas_instrument_name" value="ThermoScientific_Tei42TL_CMN" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
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    <attribute name="ebas_inlet_tube_material" value="Teflon" />
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    <attribute name="ebas_water_vapor_correction" value="Corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Passive, inlet air heated from atmospheric to converter temperature" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value=", World Data Centre for Reactive Gases" />
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    <attribute name="ebas_framework_contact_email" value="waa@nilu.no, kt@nilu.no" />
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    <attribute name="ebas_submitter" value="&quot;Putero, Davide, d.putero@isac.cnr.it, Institute of Atmospheric Sciences and Climate, ISAC, , Via P. Gobetti 101, , I-40129, Bologna, Italy&quot;" />
    <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: CAMPAIGN, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data corrected for night-time bias, water vapor and ozone interferences. -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.6249228." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/nitrogenoxidesmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="nitrogen oxides mass concentration" />
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    <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" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
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    <attribute name="actris_framework_preferred_term" value="GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_NOx_ug_N_per_m3_stddev" shape="qc_NOx_ug_N_per_m3_stddev_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="meta_NOx_ug_N_per_m3_stddev" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_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="qc_nitrogen_dioxide_nmol_per_mol_amean meta_nitrogen_dioxide_nmol_per_mol_amean" />
    <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="2023-12-04T14:39:43.554915Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, automatically 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" />
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    <attribute name="ebas_station_land_use" value="Remote park" />
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    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="44.19320533600754" />
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    <attribute name="ebas_measurement_height" value="7.0 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="IT06L" />
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    <attribute name="ebas_humidity_temperaure_control" value="None" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_comment" value="Data corrected for night-time bias, water vapor and ozone interferences. -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.6249228. Detection limit converted from '0.11 nmol/mol' to '0.06874 ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.6249228. -- Data converted on export from EBAS from 'ug N/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 1.600198. Detection limit converted from '0.06874 ug N/m3' at 273.15 K, 1013.25 hPa to '0.11 nmol/mol', conversion factor 1.600198." />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_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" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="initial revision, automatically inspected" />
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    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_orig_time_res" value="1mn" />
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    <attribute name="ebas_component" value="nitrogen_dioxide" />
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    <attribute name="ebas_comment" value="Data corrected for night-time bias, water vapor and ozone interferences. -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.6249228. Detection limit converted from '0.11 nmol/mol' to '0.06874 ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.6249228." />
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    <attribute name="actris_variable_preferred_term" value="nitrogen dioxide mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_constraints_preferred_term" value="expressed as nitrogen" />
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    <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" />
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    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_component" value="nitrogen_monoxide" />
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    <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: CAMPAIGN, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data corrected for night-time bias, water vapor and ozone interferences. -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.6249228." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/nitricoxidemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="nitric oxide mass concentration" />
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    <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" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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  <variable name="qc_nitrogen_monoxide_ug_N_per_m3_perc8413" shape="qc_nitrogen_monoxide_ug_N_per_m3_perc8413_flags time" type="int">
    <attribute name="units" value="1" />
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    <attribute name="standard_name" value="status_flag" />
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  <variable name="meta_nitrogen_monoxide_ug_N_per_m3_perc8413" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_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="qc_nitrogen_monoxide_nmol_per_mol_stddev meta_nitrogen_monoxide_nmol_per_mol_stddev" />
    <attribute name="cell_methods" value="time: standard_deviation" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="initial revision, automatically inspected" />
    <attribute name="ebas_statistics" value="stddev" />
    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_orig_time_res" value="1mn" />
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    <attribute name="ebas_station_gaw_name" value="Monte Cimone" />
    <attribute name="ebas_station_land_use" value="Remote park" />
    <attribute name="ebas_station_setting" value="Mountain" />
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    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="ebas_humidity_temperaure_control" value="None" />
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  <variable name="meta_nitrogen_monoxide_nmol_per_mol_stddev" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_nitrogen_monoxide_ug_N_per_m3_stddev" shape="time" type="double">
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    <attribute name="standard_name" value="mass_concentration_of_nitrogen_monoxide_expressed_as_nitrogen_in_air" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="units" value="days since 1900-01-01T00:00:00Z" />
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  <variable name="metadata_time" shape="metadata_time" type="double">
    <attribute name="long_name" value="time of ebas metadata intervals" />
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    <attribute name="units" value="days since 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
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    <attribute name="_CoordinateAxisType" value="Time" />
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