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  <attribute name="title" value="Ground based in situ observations of nitrogen_dioxide at Zugspitze-Schneefernerhaus (DE0054R) using chemiluminescence_photolytic" />
  <attribute name="keywords" value="nitrogen_dioxide, DE0054R, air, GAW-WDCRG, EMEP, mole_fraction_of_nitrogen_dioxide_in_air, mass_concentration_of_nitrogen_dioxide_expressed_as_nitrogen_in_air, Zugspitze-Schneefernerhaus" />
  <attribute name="id" value="2TZJ-EHQD.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="EMEP, GAW-WDCRG" />
  <attribute name="acknowledgement" value="Request acknowledgement details from data originator" />
  <attribute name="doi" value="https://doi.org/10.48597/2TZJ-EHQD" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Cedric Couret, Cedric Couret, Cedric Couret, nitrogen_dioxide - chemiluminescence_photolytic at Zugspitze-Schneefernerhaus, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/2TZJ-EHQD" />
  <attribute name="summary" value="Ground based in situ observations of nitrogen_dioxide at Zugspitze-Schneefernerhaus (DE0054R) using chemiluminescence_photolytic. These measurements are gathered as a part of the following projects EMEP, GAW-WDCRG and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: nitrogen_dioxide in air (mole_fraction_of_nitrogen_dioxide_in_air), nitrogen_dioxide in air (mass_concentration_of_nitrogen_dioxide_expressed_as_nitrogen_in_air), nitrogen_dioxide in air (mole_fraction_of_nitrogen_dioxide_in_air), nitrogen_dioxide in air (mass_concentration_of_nitrogen_dioxide_expressed_as_nitrogen_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="DE42L, Umweltbundesamt, UBA, II.4.5.7 GAW Globalobservatorium Zugspitze/Hohenpeissenberg, Platform Zugspitze, Umweltforschungsstation Schneefernerhaus, 82475, Zugspitze, Germany" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2022-06-02T13:04:41 UTC" />
  <attribute name="date_metadata_modified" value="2022-06-02T13:04:41 UTC" />
  <attribute name="creator_name" value="Cedric Couret, Cedric Couret, Cedric Couret" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="cedric.couret@uba.de, cedric.couret@uba.de, cedric.couret@uba.de" />
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  <attribute name="contributor_name" value="Cedric Couret, Cedric Couret, Cedric Couret" />
  <attribute name="contributor_role" value="data submitter, data submitter, data submitter" />
  <attribute name="publisher_type" value="institution" />
  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_institution" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_email" value="ebas@nilu.no" />
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  <attribute name="time_coverage_start" value="2019-01-01T00:00:00 UTC" />
  <attribute name="time_coverage_end" value="2021-06-01T00:00:00 UTC" />
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  <attribute name="timezone" value="UTC" />
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  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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  <attribute name="ebas_period_code" value="29mo" />
  <attribute name="ebas_resolution_code" value="1h" />
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  <attribute name="ebas_orig_time_res" value="1mn" />
  <attribute name="ebas_station_code" value="DE0054R" />
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  <attribute name="ebas_station_setting" value="Mountain" />
  <attribute name="ebas_station_gaw_type" value="G" />
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  <attribute name="ebas_station_latitude" value="47.4165" />
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  <attribute name="ebas_station_altitude" value="2671.0 m" />
  <attribute name="ebas_measurement_height" value="3.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_component" value="nitrogen_dioxide" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="DE42L" />
  <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
  <attribute name="ebas_instrument_name" value="Ts_ANALYZER_42i_TL_no" />
  <attribute name="ebas_instrument_manufacturer" value="Thermo" />
  <attribute name="ebas_instrument_model" value="42i-TL" />
  <attribute name="ebas_instrument_serial_number" value="0902234693" />
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  <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
  <attribute name="ebas_inlet_type" value="Hat or hood" />
  <attribute name="ebas_ozone_correction" value="Corrected for reaction with O3 in the inlet" />
  <attribute name="ebas_water_vapor_correction" value="Corrected for water vapor quenching in CLD" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_detection_limit_expl" value="Detection Limit is 3 Standard deviation during zero air measurements" />
  <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
  <attribute name="ebas_zero_negative_values" value="Values below -0.025 nmol/mol are considered invalid (flag 999)" />
  <attribute name="ebas_organization" value="DE42L, Umweltbundesamt, UBA, &quot;II.4.5.7 GAW Globalobservatorium Zugspitze/Hohenpeissenberg, Platform Zugspitze&quot;, Umweltforschungsstation Schneefernerhaus, , 82475, Zugspitze, Germany" />
  <attribute name="ebas_framework_acronym" value="EMEP, GAW-WDCRG" />
  <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
  <attribute name="ebas_framework_description" value="The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
  <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Kjetil Tørseth" />
  <attribute name="ebas_framework_contact_email" value="kt@nilu.no, kt@nilu.no" />
  <attribute name="ebas_originator" value="Couret, Cedric, cedric.couret@uba.de, German Environment Agency, UBA, II.4.5 GAW Globalobservatorium Zugspitze/Hohenpeissenberg Platform Zugspitze, Umweltforschungsstation Schneefernerhaus Zugspitze 5, , 82475, Zugspitze, Germany" />
  <attribute name="ebas_submitter" value="Couret, Cedric, cedric.couret@uba.de, German Environment Agency, UBA, II.4.5 GAW Globalobservatorium Zugspitze/Hohenpeissenberg Platform Zugspitze, Umweltforschungsstation Schneefernerhaus Zugspitze 5, , 82475, Zugspitze, Germany" />
  <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
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  <attribute name="comment" value="{&#xA;    &quot;Data definition&quot;: &quot;EBAS_1.1&quot;,&#xA;    &quot;Data license&quot;: &quot;https://creativecommons.org/licenses/by/4.0/&quot;,&#xA;    &quot;Citation&quot;: &quot;Cedric Couret, Cedric Couret, Cedric Couret, nitrogen_dioxide - chemiluminescence_photolytic at Zugspitze-Schneefernerhaus, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/2TZJ-EHQD&quot;,&#xA;    &quot;Set type code&quot;: &quot;TU&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;2TZJ-EHQD.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/2TZJ-EHQD&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/2TZJ-EHQD&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-10T05:46:11.739318 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2022-06-02T13:04:41.970000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20190101000000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20220602130441&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;29mo&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1h&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1h&quot;,&#xA;    &quot;Orig. time res.&quot;: &quot;1mn&quot;,&#xA;    &quot;Station code&quot;: &quot;DE0054R&quot;,&#xA;    &quot;Platform code&quot;: &quot;DE0054S&quot;,&#xA;    &quot;Station name&quot;: &quot;Zugspitze-Schneefernerhaus&quot;,&#xA;    &quot;Station WDCA-ID&quot;: &quot;GAWADE__ZSF&quot;,&#xA;    &quot;Station GAW-ID&quot;: &quot;ZSF&quot;,&#xA;    &quot;Station GAW-Name&quot;: &quot;Zugspitze-Schneefernerhaus&quot;,&#xA;    &quot;Station land use&quot;: &quot;Gravel and stone&quot;,&#xA;    &quot;Station setting&quot;: &quot;Mountain&quot;,&#xA;    &quot;Station GAW type&quot;: &quot;G&quot;,&#xA;    &quot;Station WMO region&quot;: &quot;6&quot;,&#xA;    &quot;Station latitude&quot;: &quot;47.4165&quot;,&#xA;    &quot;Station longitude&quot;: &quot;10.97964&quot;,&#xA;    &quot;Station altitude&quot;: &quot;2671.0 m&quot;,&#xA;    &quot;Measurement height&quot;: &quot;3.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Component&quot;: &quot;nitrogen_dioxide&quot;,&#xA;    &quot;Matrix&quot;: &quot;air&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;DE42L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;chemiluminescence_photolytic&quot;,&#xA;    &quot;Instrument name&quot;: &quot;Ts_ANALYZER_42i_TL_no&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;Thermo&quot;,&#xA;    &quot;Instrument model&quot;: &quot;42i-TL&quot;,&#xA;    &quot;Instrument serial number&quot;: &quot;0902234693&quot;,&#xA;    &quot;Method ref&quot;: &quot;DE42L_Chemi_Photo&quot;,&#xA;    &quot;Standard method&quot;: &quot;SOP=ACTRIS_NOxy_2014&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Hat or hood&quot;,&#xA;    &quot;Ozone correction&quot;: &quot;Corrected for reaction with O3 in the inlet&quot;,&#xA;    &quot;Water vapor correction&quot;: &quot;Corrected for water vapor quenching in CLD&quot;,&#xA; 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    <attribute name="ebas_revision_date" value="20220602130441" />
    <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="DE0054R" />
    <attribute name="ebas_platform_code" value="DE0054S" />
    <attribute name="ebas_station_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__ZSF" />
    <attribute name="ebas_station_gaw_id" value="ZSF" />
    <attribute name="ebas_station_gaw_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="47.4165" />
    <attribute name="ebas_station_longitude" value="10.97964" />
    <attribute name="ebas_station_altitude" value="2671.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 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="DE42L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ts_ANALYZER_42i_TL_no" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="42i-TL" />
    <attribute name="ebas_instrument_serial_number" value="0902234693" />
    <attribute name="ebas_method_ref" value="DE42L_Chemi_Photo" />
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    <attribute name="ebas_ozone_correction" value="Corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection Limit is 3 Standard deviation during zero air measurements" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Values below -0.025 nmol/mol are considered invalid (flag 999)" />
    <attribute name="ebas_organization" value="DE42L, Umweltbundesamt, UBA, &quot;II.4.5.7 GAW Globalobservatorium Zugspitze/Hohenpeissenberg, Platform Zugspitze&quot;, Umweltforschungsstation Schneefernerhaus, , 82475, Zugspitze, Germany" />
    <attribute name="ebas_framework_acronym" value="EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="nitrogen_dioxide_ug_N_per_m3_amean_qc" shape="nitrogen_dioxide_ug_N_per_m3_amean_qc_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="nitrogen_dioxide_ug_N_per_m3_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrogen_dioxide_nmol_per_mol_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="nitrogen_dioxide_nmol_per_mol_ExpUnc2s_qc nitrogen_dioxide_nmol_per_mol_ExpUnc2s_ebasmetadata" />
    <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="20220602130441" />
    <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="DE0054R" />
    <attribute name="ebas_platform_code" value="DE0054S" />
    <attribute name="ebas_station_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_wdca_id" value="GAWADE__ZSF" />
    <attribute name="ebas_station_gaw_id" value="ZSF" />
    <attribute name="ebas_station_gaw_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="47.4165" />
    <attribute name="ebas_station_longitude" value="10.97964" />
    <attribute name="ebas_station_altitude" value="2671.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 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="DE42L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ts_ANALYZER_42i_TL_no" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="42i-TL" />
    <attribute name="ebas_instrument_serial_number" value="0902234693" />
    <attribute name="ebas_method_ref" value="DE42L_Chemi_Photo" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_NOxy_2014" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_ozone_correction" value="Corrected for reaction with O3 in the inlet" />
    <attribute name="ebas_water_vapor_correction" value="Corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_detection_limit_expl" value="Detection Limit is 3 Standard deviation during zero air measurements" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Values below -0.025 nmol/mol are considered invalid (flag 999)" />
    <attribute name="ebas_organization" value="DE42L, Umweltbundesamt, UBA, &quot;II.4.5.7 GAW Globalobservatorium Zugspitze/Hohenpeissenberg, Platform Zugspitze&quot;, Umweltforschungsstation Schneefernerhaus, , 82475, Zugspitze, Germany" />
    <attribute name="ebas_framework_acronym" value="EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
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    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Detection Limit is 3 Standard deviation during zero air measurements. -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.624923. -- Data converted on export from EBAS from 'ug N/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 1.60020." />
  </variable>
  <variable name="nitrogen_dioxide_nmol_per_mol_ExpUnc2s_qc" shape="nitrogen_dioxide_nmol_per_mol_ExpUnc2s_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="nitrogen_dioxide_nmol_per_mol_ExpUnc2s_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrogen_dioxide_ug_N_per_m3_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="nitrogen_dioxide_ug N_per_m3_ExpUnc2s_qc nitrogen_dioxide_ug N_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <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="DE0054R" />
    <attribute name="ebas_platform_code" value="DE0054S" />
    <attribute name="ebas_station_name" value="Zugspitze-Schneefernerhaus" />
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    <attribute name="ebas_station_gaw_id" value="ZSF" />
    <attribute name="ebas_station_gaw_name" value="Zugspitze-Schneefernerhaus" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="47.4165" />
    <attribute name="ebas_station_longitude" value="10.97964" />
    <attribute name="ebas_station_altitude" value="2671.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 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="DE42L" />
    <attribute name="ebas_instrument_type" value="chemiluminescence_photolytic" />
    <attribute name="ebas_instrument_name" value="Ts_ANALYZER_42i_TL_no" />
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    <attribute name="ebas_water_vapor_correction" value="Corrected for water vapor quenching in CLD" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Detection Limit is 3 Standard deviation during zero air measurements. -- Data converted on import into EBAS from 'nmol/mol' to 'ug N/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.624923." />
  </variable>
  <variable name="nitrogen_dioxide_ug_N_per_m3_ExpUnc2s_qc" shape="nitrogen_dioxide_ug_N_per_m3_ExpUnc2s_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="nitrogen_dioxide_ug_N_per_m3_ExpUnc2s_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="time" shape="time" type="double">
    <attribute name="long_name" value="time of measurement" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
  <variable name="metadata_time" shape="metadata_time" type="double">
    <attribute name="long_name" value="time of ebas metadata intervals" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
