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  <attribute name="title" value="Nitrogen oxides at Hohenpeissenberg" />
  <attribute name="summary" value="Nitrogen oxides at Hohenpeissenberg. These measurements are gathered as a part of the following projects ACTRIS, 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="Hohenpeissenberg DE0043G NOx nitrogen_dioxide nitrogen_monoxide air ACTRIS 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" />
  <attribute name="id" value="MUQA-2G93.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, 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, GAW-WDCRG. Request acknowledgement details from data originator" />
  <attribute name="doi" value="https://doi.org/10.48597/MUQA-2G93" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Kubistin, D., Holla, R., ACTRIS, GAW-WDCRG, 2026, Nitrogen oxides at Hohenpeissenberg, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/MUQA-2G93" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="DE09L &quot;Deutscher Wetterdienst&quot; DWD &quot;Met. Obs.&quot; Hohenspeissenberg 82283 Hohenspeissenberg Germany" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2026-07-03T06:16:57.066514Z" />
  <attribute name="date_metadata_modified" value="2026-06-03T00:00:00Z" />
  <attribute name="creator_name" value="Dagmar Kubistin, Robert Holla" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="Dagmar.Kubistin@dwd.de, Robert.Holla@dwd.de" />
  <attribute name="creator_institution" value="&quot;Meteorological Observatory Hohenpeissenberg, DWD (German Weather Service), MOHp&quot;, &quot;Meteorological Observatory Hohenpeissenberg, DWD (German Weather Service), MOHp&quot;" />
  <attribute name="contributor_name" value="Robert Holla" />
  <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" />
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  <attribute name="time_coverage_start" value="2025-01-01T00:00:00Z" />
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  <attribute name="ebas_citation" value="Kubistin, D., Holla, R., ACTRIS, GAW-WDCRG, 2026, Nitrogen oxides at Hohenpeissenberg, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/MUQA-2G93" />
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  <attribute name="ebas_measurement_height" value="16.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="DE09L" />
  <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
  <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
  <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
  <attribute name="ebas_instrument_model" value="CLD770ALppt" />
  <attribute name="ebas_instrument_serial_number" value="77209" />
  <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
  <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
  <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
  <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
  <attribute name="ebas_inlet_type" value="Hat or hood" />
  <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
  <attribute name="ebas_inlet_tube_material" value="Teflon" />
  <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="Temperature controlled" />
  <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
  <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
  <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
  <attribute name="ebas_qa1_measure_id" value="ACTRIS NOx s-b-s 2012" />
  <attribute name="ebas_qa1_date" value="2012-11-16T00:00:00Z" />
  <attribute name="ebas_qa1_document_name" value="WP4- NA4: Trace gases networking: Volatile organic carbon and nitrogen oxides Deliverable D4.6: Results of NOx side-by-side inter-comparison exercise of ambient air and test gases" />
  <attribute name="ebas_qa1_document_date" value="2013-10-14T00:00:00Z" />
  <attribute name="ebas_qa1_document_url" value="http://fp7.actris.eu/Portals/97/deliverables/PU/WP4_D4.6_M24_final_v2.pdf" />
  <attribute name="ebas_qa2_measure_id" value="ACTRIS NO round robin 2012" />
  <attribute name="ebas_qa2_date" value="2012-12-01T00:00:00Z" />
  <attribute name="ebas_qa2_document_name" value="WP4- NA4: Trace gases networking: Volatile organic carbon and nitrogen oxides Deliverable D4.4: Results of Round Robin exercise of NO" />
  <attribute name="ebas_qa2_document_url" value="http://fp7.actris.eu/Portals/97/deliverables/PU/WP4_D4.4_M24.pdf" />
  <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
  <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
  <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
  <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
  <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
  <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
  <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, 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="creator_url" value="ebas.nilu.no" />
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  <dimension name="time" length="8760" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <dimension name="qc_NOx_nmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_NOx_ug_N_per_m3_amean_flags" length="1" />
  <dimension name="qc_NOx_nmol_per_mol_det_lim_flags" length="1" />
  <dimension name="qc_NOx_ug_N_per_m3_det_lim_flags" length="1" />
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  <dimension name="qc_NOx_ug_N_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_NOx_nmol_per_mol_prec1587_flags" length="1" />
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  <dimension name="qc_NOx_ug_N_per_m3_perc8413_flags" length="1" />
  <dimension name="qc_NOx_nmol_per_mol_precision_flags" length="1" />
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  <dimension name="qc_nitrogen_dioxide_nmol_per_mol_amean_flags" length="1" />
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  <dimension name="qc_nitrogen_dioxide_ug_N_per_m3_ExpUnc2s_flags" length="1" />
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  <dimension name="qc_nitrogen_dioxide_ug_N_per_m3_prec1587_flags" length="1" />
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  <dimension name="qc_nitrogen_dioxide_ug_N_per_m3_precision_flags" length="1" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <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" />
    <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_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_NOx_nmol_per_mol_amean" shape="qc_NOx_nmol_per_mol_amean_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_nmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_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="qc_NOx_ug_N_per_m3_amean meta_NOx_ug_N_per_m3_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="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <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="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
    <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" />
    <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" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_NOx_ug_N_per_m3_amean" shape="qc_NOx_ug_N_per_m3_amean_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_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_NOx_nmol_per_mol_det_lim" 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="qc_NOx_nmol_per_mol_det_lim meta_NOx_nmol_per_mol_det_lim" />
    <attribute name="cell_methods" value="time: detection limit" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="detection limit" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <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" />
    <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_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_NOx_nmol_per_mol_det_lim" shape="qc_NOx_nmol_per_mol_det_lim_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_nmol_per_mol_det_lim" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_NOx_ug_N_per_m3_det_lim" 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="qc_NOx_ug_N_per_m3_det_lim meta_NOx_ug_N_per_m3_det_lim" />
    <attribute name="cell_methods" value="time: detection limit" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="detection limit" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <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="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
    <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" />
    <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" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_NOx_ug_N_per_m3_det_lim" shape="qc_NOx_ug_N_per_m3_det_lim_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_det_lim" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_NOx_nmol_per_mol_ExpUnc2s" 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="qc_NOx_nmol_per_mol_ExpUnc2s meta_NOx_nmol_per_mol_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <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" />
    <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_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_NOx_nmol_per_mol_ExpUnc2s" shape="qc_NOx_nmol_per_mol_ExpUnc2s_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_nmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_NOx_ug_N_per_m3_ExpUnc2s" 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="qc_NOx_ug_N_per_m3_ExpUnc2s meta_NOx_ug_N_per_m3_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <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="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
    <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" />
    <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" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_NOx_ug_N_per_m3_ExpUnc2s" shape="qc_NOx_ug_N_per_m3_ExpUnc2s_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_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_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="qc_NOx_nmol_per_mol_prec1587 meta_NOx_nmol_per_mol_prec1587" />
    <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="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <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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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_NOx_nmol_per_mol_prec1587" shape="qc_NOx_nmol_per_mol_prec1587_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_nmol_per_mol_prec1587" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_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="qc_NOx_ug_N_per_m3_prec1587 meta_NOx_ug_N_per_m3_prec1587" />
    <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="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
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    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
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    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
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    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
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    <attribute name="ebas_humidity_temperaure_control" value="Temperature controlled" />
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    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
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    <attribute name="ebas_framework_description" value="&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.&quot;, 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." />
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    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
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    <attribute name="actris_variable_preferred_term" value="nitrogen oxides mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_NOx_ug_N_per_m3_prec1587" shape="qc_NOx_ug_N_per_m3_prec1587_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" />
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  <variable name="meta_NOx_ug_N_per_m3_prec1587" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_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="qc_NOx_nmol_per_mol_perc8413 meta_NOx_nmol_per_mol_perc8413" />
    <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="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
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    <attribute name="ebas_ozone_correction" value="Not corrected for reaction with O3 in the inlet" />
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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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <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" />
    <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_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_NOx_nmol_per_mol_perc8413" shape="qc_NOx_nmol_per_mol_perc8413_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_nmol_per_mol_perc8413" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_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="qc_NOx_ug_N_per_m3_perc8413 meta_NOx_ug_N_per_m3_perc8413" />
    <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="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <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="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
    <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" />
    <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" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_NOx_ug_N_per_m3_perc8413" shape="qc_NOx_ug_N_per_m3_perc8413_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_perc8413" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_NOx_nmol_per_mol_precision" 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="qc_NOx_nmol_per_mol_precision meta_NOx_nmol_per_mol_precision" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <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" />
    <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_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_NOx_nmol_per_mol_precision" shape="qc_NOx_nmol_per_mol_precision_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_nmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_NOx_ug_N_per_m3_precision" 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="qc_NOx_ug_N_per_m3_precision meta_NOx_ug_N_per_m3_precision" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <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="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
    <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" />
    <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" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_NOx_ug_N_per_m3_precision" shape="qc_NOx_ug_N_per_m3_precision_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_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_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="qc_NOx_nmol_per_mol_stddev meta_NOx_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/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <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" />
    <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_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_NOx_nmol_per_mol_stddev" shape="qc_NOx_nmol_per_mol_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_nmol_per_mol_stddev" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_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="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="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <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="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
    <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" />
    <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" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <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="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_scale" value="NPL+GPT" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/nitrogendioxideamountfraction" />
    <attribute name="actris_variable_preferred_term" value="nitrogen dioxide amount fraction" />
    <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_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_dioxide_nmol_per_mol_amean" shape="qc_nitrogen_dioxide_nmol_per_mol_amean_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_nitrogen_dioxide_nmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <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" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_nitrogen_dioxide_ug_N_per_m3_amean meta_nitrogen_dioxide_ug_N_per_m3_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="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_scale" value="NPL+GPT" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <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="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
    <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" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_dioxide_ug_N_per_m3_amean" shape="qc_nitrogen_dioxide_ug_N_per_m3_amean_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_nitrogen_dioxide_ug_N_per_m3_amean" 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_det_lim" 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_det_lim meta_nitrogen_dioxide_nmol_per_mol_det_lim" />
    <attribute name="cell_methods" value="time: detection limit" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="detection limit" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/nitrogendioxideamountfraction" />
    <attribute name="actris_variable_preferred_term" value="nitrogen dioxide amount fraction" />
    <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_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_dioxide_nmol_per_mol_det_lim" shape="qc_nitrogen_dioxide_nmol_per_mol_det_lim_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_nitrogen_dioxide_nmol_per_mol_det_lim" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_nitrogen_dioxide_ug_N_per_m3_det_lim" 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="qc_nitrogen_dioxide_ug_N_per_m3_det_lim meta_nitrogen_dioxide_ug_N_per_m3_det_lim" />
    <attribute name="cell_methods" value="time: detection limit" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="detection limit" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <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="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
    <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" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_dioxide_ug_N_per_m3_det_lim" shape="qc_nitrogen_dioxide_ug_N_per_m3_det_lim_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_nitrogen_dioxide_ug_N_per_m3_det_lim" 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_ExpUnc2s" 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_ExpUnc2s meta_nitrogen_dioxide_nmol_per_mol_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/nitrogendioxideamountfraction" />
    <attribute name="actris_variable_preferred_term" value="nitrogen dioxide amount fraction" />
    <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_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_dioxide_nmol_per_mol_ExpUnc2s" shape="qc_nitrogen_dioxide_nmol_per_mol_ExpUnc2s_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_nitrogen_dioxide_nmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_nitrogen_dioxide_ug_N_per_m3_ExpUnc2s" 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="qc_nitrogen_dioxide_ug_N_per_m3_ExpUnc2s meta_nitrogen_dioxide_ug_N_per_m3_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <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="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
    <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" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_dioxide_ug_N_per_m3_ExpUnc2s" shape="qc_nitrogen_dioxide_ug_N_per_m3_ExpUnc2s_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_nitrogen_dioxide_ug_N_per_m3_ExpUnc2s" 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_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="qc_nitrogen_dioxide_nmol_per_mol_prec1587 meta_nitrogen_dioxide_nmol_per_mol_prec1587" />
    <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="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/nitrogendioxideamountfraction" />
    <attribute name="actris_variable_preferred_term" value="nitrogen dioxide amount fraction" />
    <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_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_dioxide_nmol_per_mol_prec1587" shape="qc_nitrogen_dioxide_nmol_per_mol_prec1587_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="meta_nitrogen_dioxide_nmol_per_mol_prec1587" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_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="qc_nitrogen_dioxide_ug_N_per_m3_prec1587 meta_nitrogen_dioxide_ug_N_per_m3_prec1587" />
    <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="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
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    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
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    <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="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
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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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
    <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" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_dioxide_ug_N_per_m3_prec1587" shape="qc_nitrogen_dioxide_ug_N_per_m3_prec1587_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_nitrogen_dioxide_ug_N_per_m3_prec1587" 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_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="qc_nitrogen_dioxide_nmol_per_mol_perc8413 meta_nitrogen_dioxide_nmol_per_mol_perc8413" />
    <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="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/nitrogendioxideamountfraction" />
    <attribute name="actris_variable_preferred_term" value="nitrogen dioxide amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_dioxide_nmol_per_mol_perc8413" shape="qc_nitrogen_dioxide_nmol_per_mol_perc8413_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_nitrogen_dioxide_nmol_per_mol_perc8413" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_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="qc_nitrogen_dioxide_ug_N_per_m3_perc8413 meta_nitrogen_dioxide_ug_N_per_m3_perc8413" />
    <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="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
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    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
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    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
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    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
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    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
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    <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="Temperature controlled" />
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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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
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    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
    <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" />
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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" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, 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_nitrogen_dioxide_ug_N_per_m3_perc8413" shape="qc_nitrogen_dioxide_ug_N_per_m3_perc8413_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" />
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  <variable name="meta_nitrogen_dioxide_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_dioxide_nmol_per_mol_precision" 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_precision meta_nitrogen_dioxide_nmol_per_mol_precision" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/nitrogendioxideamountfraction" />
    <attribute name="actris_variable_preferred_term" value="nitrogen dioxide amount fraction" />
    <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_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_dioxide_nmol_per_mol_precision" shape="qc_nitrogen_dioxide_nmol_per_mol_precision_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_nitrogen_dioxide_nmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_nitrogen_dioxide_ug_N_per_m3_precision" 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="qc_nitrogen_dioxide_ug_N_per_m3_precision meta_nitrogen_dioxide_ug_N_per_m3_precision" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <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="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
    <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" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_dioxide_ug_N_per_m3_precision" shape="qc_nitrogen_dioxide_ug_N_per_m3_precision_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_nitrogen_dioxide_ug_N_per_m3_precision" 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_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="qc_nitrogen_dioxide_nmol_per_mol_stddev meta_nitrogen_dioxide_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/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/nitrogendioxideamountfraction" />
    <attribute name="actris_variable_preferred_term" value="nitrogen dioxide amount fraction" />
    <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_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_dioxide_nmol_per_mol_stddev" shape="qc_nitrogen_dioxide_nmol_per_mol_stddev_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="meta_nitrogen_dioxide_nmol_per_mol_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_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="qc_nitrogen_dioxide_ug_N_per_m3_stddev meta_nitrogen_dioxide_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="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <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="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
    <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" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_dioxide_ug_N_per_m3_stddev" shape="qc_nitrogen_dioxide_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_nitrogen_dioxide_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_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="qc_nitrogen_monoxide_nmol_per_mol_amean meta_nitrogen_monoxide_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="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/nitricoxideamountfraction" />
    <attribute name="actris_variable_preferred_term" value="nitric oxide amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_monoxide_nmol_per_mol_amean" shape="qc_nitrogen_monoxide_nmol_per_mol_amean_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_nitrogen_monoxide_nmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_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="qc_nitrogen_monoxide_ug_N_per_m3_amean meta_nitrogen_monoxide_ug_N_per_m3_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="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <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="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
    <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" />
    <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" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_monoxide_ug_N_per_m3_amean" shape="qc_nitrogen_monoxide_ug_N_per_m3_amean_flags time" type="int">
    <attribute name="units" value="1" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
  </variable>
  <variable name="meta_nitrogen_monoxide_ug_N_per_m3_amean" 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_det_lim" 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_det_lim meta_nitrogen_monoxide_nmol_per_mol_det_lim" />
    <attribute name="cell_methods" value="time: detection limit" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="detection limit" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/nitricoxideamountfraction" />
    <attribute name="actris_variable_preferred_term" value="nitric oxide amount fraction" />
    <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_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_monoxide_nmol_per_mol_det_lim" shape="qc_nitrogen_monoxide_nmol_per_mol_det_lim_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="meta_nitrogen_monoxide_nmol_per_mol_det_lim" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_nitrogen_monoxide_ug_N_per_m3_det_lim" 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="qc_nitrogen_monoxide_ug_N_per_m3_det_lim meta_nitrogen_monoxide_ug_N_per_m3_det_lim" />
    <attribute name="cell_methods" value="time: detection limit" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="detection limit" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <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="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
    <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" />
    <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" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_monoxide_ug_N_per_m3_det_lim" shape="qc_nitrogen_monoxide_ug_N_per_m3_det_lim_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_nitrogen_monoxide_ug_N_per_m3_det_lim" 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_ExpUnc2s" 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_ExpUnc2s meta_nitrogen_monoxide_nmol_per_mol_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/nitricoxideamountfraction" />
    <attribute name="actris_variable_preferred_term" value="nitric oxide amount fraction" />
    <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_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_monoxide_nmol_per_mol_ExpUnc2s" shape="qc_nitrogen_monoxide_nmol_per_mol_ExpUnc2s_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_nitrogen_monoxide_nmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_nitrogen_monoxide_ug_N_per_m3_ExpUnc2s" 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="qc_nitrogen_monoxide_ug_N_per_m3_ExpUnc2s meta_nitrogen_monoxide_ug_N_per_m3_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <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="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
    <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" />
    <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" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_monoxide_ug_N_per_m3_ExpUnc2s" shape="qc_nitrogen_monoxide_ug_N_per_m3_ExpUnc2s_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_nitrogen_monoxide_ug_N_per_m3_ExpUnc2s" 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_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="qc_nitrogen_monoxide_nmol_per_mol_prec1587 meta_nitrogen_monoxide_nmol_per_mol_prec1587" />
    <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="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/nitricoxideamountfraction" />
    <attribute name="actris_variable_preferred_term" value="nitric oxide amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="missing_value" type="int" value="0" />
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  <variable name="v_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="qc_nitrogen_monoxide_ug_N_per_m3_prec1587 meta_nitrogen_monoxide_ug_N_per_m3_prec1587" />
    <attribute name="cell_methods" value="time: percentile:15.87" />
    <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, 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" />
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    <attribute name="ebas_platform_code" value="DE0043S" />
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    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
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    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrogen_monoxide" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="DE09L" />
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    <attribute name="actris_variable_preferred_term" value="nitric oxide mass concentration" />
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  <variable name="meta_nitrogen_monoxide_ug_N_per_m3_prec1587" shape="metadata_time" type="String">
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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_license" value="https://creativecommons.org/licenses/by/4.0/" />
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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="ebas_statistics" value="percentile:84.13" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrogen_monoxide" />
    <attribute name="ebas_unit" value="ug N/m3" />
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    <attribute name="ebas_laboratory_code" value="DE09L" />
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    <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="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
    <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" />
    <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" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <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="missing_value" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
    <attribute name="_FillValue" type="int" value="0" />
  </variable>
  <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_precision" 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_precision meta_nitrogen_monoxide_nmol_per_mol_precision" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/nitricoxideamountfraction" />
    <attribute name="actris_variable_preferred_term" value="nitric oxide amount fraction" />
    <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_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_monoxide_nmol_per_mol_precision" shape="qc_nitrogen_monoxide_nmol_per_mol_precision_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_nitrogen_monoxide_nmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_nitrogen_monoxide_ug_N_per_m3_precision" 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="qc_nitrogen_monoxide_ug_N_per_m3_precision meta_nitrogen_monoxide_ug_N_per_m3_precision" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="precision" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <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="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
    <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" />
    <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" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_monoxide_ug_N_per_m3_precision" shape="qc_nitrogen_monoxide_ug_N_per_m3_precision_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
    <attribute name="_FillValue" type="int" value="0" />
  </variable>
  <variable name="meta_nitrogen_monoxide_ug_N_per_m3_precision" 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/" />
    <attribute name="ebas_revision_date" value="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- 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." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/nitricoxideamountfraction" />
    <attribute name="actris_variable_preferred_term" value="nitric oxide amount fraction" />
    <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_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_monoxide_nmol_per_mol_stddev" shape="qc_nitrogen_monoxide_nmol_per_mol_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_nitrogen_monoxide_nmol_per_mol_stddev" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_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="qc_nitrogen_monoxide_ug_N_per_m3_stddev meta_nitrogen_monoxide_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="2026-06-03T00:00:00.000000Z" />
    <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="DE0043G" />
    <attribute name="ebas_platform_code" value="DE0043S" />
    <attribute name="ebas_station_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__HPB" />
    <attribute name="ebas_station_gaw_id" value="HPB" />
    <attribute name="ebas_station_gaw_name" value="Hohenpeissenberg" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <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="47.8014984131" />
    <attribute name="ebas_station_longitude" type="double" value="11.009619" />
    <attribute name="ebas_station_altitude" value="975.0 m" />
    <attribute name="ebas_measurement_height" value="16.0 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="DE09L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ecophysics_CLD770ALppt_CLD3" />
    <attribute name="ebas_instrument_manufacturer" value="Ecophysics" />
    <attribute name="ebas_instrument_model" value="CLD770ALppt" />
    <attribute name="ebas_instrument_serial_number" value="77209" />
    <attribute name="ebas_method_ref" value="DE09L_CLP_conv_BLC_DE20L_NOx_corr_offset" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_calibration_standard_id" value="Status calibration standard: 4, Manufacturer: AirLiquide, Batch: D1L4CWE_2022, from: 31.08.2024; Status calibration standard: 5, Manufacturer: AirLiquide, Batch: D5AN2RP_2023, from: 29.07.2024" />
    <attribute name="ebas_secondary_standard_id" value="Status calibration standard: 10, zero Ecophysics PAG003; Status calibration standard: 11, span airQrate + working standard; Status calibration standard: 12, span airQrate + working standard with and without converter (Phase 1); Status calibration standard: 12, span airQrate + working standard with and without converter plus ozone GPT with NO excess (Phase 2);" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Hat made of PFA teflon. A mesh filter under the hat bottom prevents bugs. Inlet is connected to a manifold, from where O3 analyzer is connected by 1/4&quot; tubing." />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <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="Temperature controlled" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Temperature controlled at 4°C above ambient air" />
    <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="Determined by instrument counting statistics for 1 minute integration time during nights without NO, 3 sigma" />
    <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. Values smaller than zero - 4-fold precision after offset correction are flagged as invalid." />
    <attribute name="ebas_organization" value="DE09L, Deutscher Wetterdienst, DWD, Met. Obs., Hohenspeissenberg, , 82283, Hohenspeissenberg, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&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.&quot;, 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" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Kubistin, Dagmar, Dagmar.Kubistin@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;, &quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Holla, Robert, Robert.Holla@dwd.de, Meteorological Observatory Hohenpeissenberg, MOHp, DWD (German Weather Service), Albin-Schwaiger-Weg, 10, D-82383, Hohenpeissenberg, Germany&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: ACTRIS, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="converted by TC from DE0043G.20250101000000.20260520120000.chemiluminescence_photolytic.NOx.air.1y.1mn.DE09L_Ecophysics_CLD770ALppt_CLD3.DE09L_chemiluminescence_photo_conv_PLC.lev1.nas ,precision, uncertainty, dectection limit as in lev0, NO offset corrected -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.62492281." />
    <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" />
    <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" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/chemiluminescencedetector-photolyticalconverter" />
    <attribute name="actris_instrument_type_preferred_term" value="chemiluminescence detector, photolytical converter" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nitrogen_monoxide_ug_N_per_m3_stddev" shape="qc_nitrogen_monoxide_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_nitrogen_monoxide_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="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" />
    <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 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
