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  <attribute name="title" value="Ozone at Summit" />
  <attribute name="summary" value="Ozone at Summit. These measurements are gathered as a part of the following projects GAW-WDCRG, NOAA-ESRL and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ['ozone in air (mole_fraction_of_ozone_in_air)', 'ozone in air (mass_concentration_of_ozone_in_air)']" />
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  <attribute name="id" value="J2V5-ZQF4.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="GAW-WDCRG, NOAA-ESRL" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/J2V5-ZQF4" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Effertz, P., Petropavlovskikh, I., GAW-WDCRG, NOAA-ESRL, 2026, Ozone at Summit, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/J2V5-ZQF4" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="US06L &quot;National Oceanic and Atmospheric Administration&quot; NOAA/GML &quot;Global Monitoring Laboratory&quot; &quot;325 Broadway&quot; &quot;CO 80305-3&quot; Boulder U.S.A." />
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  <attribute name="date_created" value="2026-01-15T13:40:18.621610Z" />
  <attribute name="date_metadata_modified" value="2026-01-15T13:40:18Z" />
  <attribute name="creator_name" value="Peter Effertz, Irina Petropavlovskikh" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="peter.effertz@noaa.gov, Irina.petro@noaa.gov" />
  <attribute name="creator_institution" value="&quot;National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD&quot;, &quot;National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD&quot;" />
  <attribute name="contributor_name" value="Peter Effertz" />
  <attribute name="contributor_role" value="data submitter" />
  <attribute name="publisher_type" value="institution" />
  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_institution" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_email" value="ebas@nilu.no" />
  <attribute name="publisher_url" value="https://www.nilu.no/" />
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  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2015-01-01T00:00:00Z" />
  <attribute name="time_coverage_end" value="2022-01-01T00:00:00Z" />
  <attribute name="time_coverage_duration" value="P0007-00-00T00:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-00T01:00:00" />
  <attribute name="timezone" value="UTC" />
  <attribute name="ebas_data_definition" value="EBAS_1.1" />
  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Effertz, P., Petropavlovskikh, I., GAW-WDCRG, NOAA-ESRL, 2026, Ozone at Summit, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/J2V5-ZQF4" />
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  <attribute name="ebas_file_creation" value="2026-04-27T18:52:00.440930Z" />
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  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="2015-01-01T00:00:00.000000Z" />
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  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="Initial Version, Generated by Peter Effertz (CIRES and NOAA-GML) on 2025 12 10, Version 2" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="7y" />
  <attribute name="ebas_resolution_code" value="1h" />
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  <attribute name="ebas_station_code" value="DK0025G" />
  <attribute name="ebas_platform_code" value="DK0025S" />
  <attribute name="ebas_station_name" value="Summit" />
  <attribute name="ebas_station_wdca_id" value="GAWADK__SUM" />
  <attribute name="ebas_station_gaw_id" value="SUM" />
  <attribute name="ebas_station_gaw_name" value="Summit" />
  <attribute name="ebas_station_land_use" value="Snowfield" />
  <attribute name="ebas_station_setting" value="Polar" />
  <attribute name="ebas_station_gaw_type" value="R" />
  <attribute name="ebas_station_wmo_region" type="long" value="6" />
  <attribute name="ebas_station_latitude" type="double" value="72.5800018311" />
  <attribute name="ebas_station_longitude" type="double" value="-38.4799995422" />
  <attribute name="ebas_station_altitude" value="3238.0 m" />
  <attribute name="ebas_measurement_altitude" value="3248.0 m" />
  <attribute name="ebas_measurement_height" value="10.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_component" value="ozone" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="US06L" />
  <attribute name="ebas_instrument_type" value="uv_abs" />
  <attribute name="ebas_instrument_name" value="Thermo_49C_SUM" />
  <attribute name="ebas_instrument_manufacturer" value="Thermo" />
  <attribute name="ebas_instrument_model" value="49C" />
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  <attribute name="ebas_maintenance_description" value="Weekly Zero and Level Checks; cleaning and maintenance every three years" />
  <attribute name="ebas_flow_rate" value="1.4 l/min" />
  <attribute name="ebas_zero_span_check_type" value="manual" />
  <attribute name="ebas_zero_span_check_interval" value="1w" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_absorption_cross_section" value="Hearn, 1961" />
  <attribute name="ebas_qa1_measure_id" value="US06L_reference_calibration_20120228" />
  <attribute name="ebas_qa1_date" value="2015-01-01T00:00:00Z" />
  <attribute name="ebas_qa1_outcome" value="pass" />
  <attribute name="ebas_qa1_bias" value="2.0 %" />
  <attribute name="ebas_organization" value="US06L, National Oceanic and Atmospheric Administration, NOAA/GML, Global Monitoring Laboratory, 325 Broadway, , CO 80305-3, Boulder, U.S.A." />
  <attribute name="ebas_framework_acronym" value="GAW-WDCRG, NOAA-ESRL" />
  <attribute name="ebas_framework_name" value="World Data Centre for Reactive Gases, " />
  <attribute name="ebas_framework_description" value="The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., " />
  <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig" />
  <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no" />
  <attribute name="ebas_originator" value="&quot;Effertz, Peter, peter.effertz@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&quot;, &quot;Petropavlovskikh, Irina, Irina.petro@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&quot;" />
  <attribute name="ebas_submitter" value="&quot;Effertz, Peter, peter.effertz@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&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: GAW-WDCRG, NOAA-ESRL. We encourage users to contact the data providers, who can provide detailed information about the measurements and scientific insight.  In cases where the data are central to a publication, co-authorship for data providers may be appropriate. https://dx.doi.org/10.7289/V57P8WBF" />
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  <attribute name="Metadata_Conventions" value="Unidata Dataset Discovery v1.0" />
  <attribute name="geospatial_lat_units" value="degrees_north" />
  <attribute name="geospatial_lon_units" value="degrees_east" />
  <attribute name="standard_name_vocabulary" value="CF-1.7, ACDD-1.3" />
  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
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  <dimension name="time" length="61368" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="7" />
  <dimension name="qc_ozone_nmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_ozone_ug_per_m3_amean_flags" length="1" />
  <dimension name="qc_ozone_nmol_per_mol_max_flags" length="1" />
  <dimension name="qc_ozone_ug_per_m3_max_flags" length="1" />
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  <dimension name="qc_ozone_ug_per_m3_stddev_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2015-01-01T00:30:00Z" />
    <attribute name="time_coverage_end" value="2021-12-31T23:30:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="3600.0" />
    <attribute name="time_coverage_duration" value="P0Y0M2556DT23H0M0.000S" />
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    <attribute name="metadata_creation" value="2026-05-17" />
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    <attribute name="long_name" value="time bounds for measurement" />
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  <variable name="metadata_time_bnds" shape="metadata_time tbnds" type="double">
    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
  </variable>
  <variable name="v_ozone_nmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ozone_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
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    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="Initial Version, Generated by Peter Effertz (CIRES and NOAA-GML) on 2025 12 10, Version 2" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_station_gaw_id" value="SUM" />
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    <attribute name="ebas_station_setting" value="Polar" />
    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_measurement_height" value="10.0 m" />
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    <attribute name="ebas_component" value="ozone" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="US06L" />
    <attribute name="ebas_instrument_type" value="uv_abs" />
    <attribute name="ebas_instrument_name" value="Thermo_49C_SUM" />
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    <attribute name="ebas_instrument_model" value="49C" />
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    <attribute name="ebas_method_ref" value="US06L_AM" />
    <attribute name="ebas_standard_method" value="SOP=GAW_209(2013)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
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    <attribute name="ebas_maintenance_description" value="Weekly Zero and Level Checks; cleaning and maintenance every three years" />
    <attribute name="ebas_flow_rate" value="1.4 l/min" />
    <attribute name="ebas_zero_span_check_type" value="manual" />
    <attribute name="ebas_zero_span_check_interval" value="1w" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_detection_limit" value="1.0 nmol/mol" />
    <attribute name="ebas_absorption_cross_section" value="Hearn, 1961" />
    <attribute name="ebas_organization" value="US06L, National Oceanic and Atmospheric Administration, NOAA/GML, Global Monitoring Laboratory, 325 Broadway, , CO 80305-3, Boulder, U.S.A." />
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    <attribute name="ebas_framework_name" value="World Data Centre for Reactive Gases, " />
    <attribute name="ebas_framework_description" value="The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., " />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Effertz, Peter, peter.effertz@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&quot;, &quot;Petropavlovskikh, Irina, Irina.petro@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&quot;" />
    <attribute name="ebas_submitter" value="&quot;Effertz, Peter, peter.effertz@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&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: GAW-WDCRG, NOAA-ESRL. We encourage users to contact the data providers, who can provide detailed information about the measurements and scientific insight.  In cases where the data are central to a publication, co-authorship for data providers may be appropriate. https://dx.doi.org/10.7289/V57P8WBF" />
    <attribute name="ebas_comment" value="Data converted on import into EBAS from 'nmol/mol' to 'ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.99534. Detection limit converted from '1.0 nmol/mol' to '1.995 ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.99534. -- Data converted on export from EBAS from 'ug/m3' at 293.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.5012. Detection limit converted from '1.995 ug/m3' at 293.15 K, 1013.25 hPa to '1.0 nmol/mol', conversion factor 0.5012." />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_ozone_ug_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ozone_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
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    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_station_setting" value="Polar" />
    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_latitude" type="double" value="72.5800018311" />
    <attribute name="ebas_station_longitude" type="double" value="-38.4799995422" />
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    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_instrument_name" value="Thermo_49C_SUM" />
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    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
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    <attribute name="ebas_inlet_tube_inner_diameter" value="4.76 mm" />
    <attribute name="ebas_inlet_tube_length" value="7.0 m" />
    <attribute name="ebas_maintenance_description" value="Weekly Zero and Level Checks; cleaning and maintenance every three years" />
    <attribute name="ebas_flow_rate" value="1.4 l/min" />
    <attribute name="ebas_zero_span_check_type" value="manual" />
    <attribute name="ebas_zero_span_check_interval" value="1w" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_volume_std_temperature" value="293.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="1.995 ug/m3" />
    <attribute name="ebas_absorption_cross_section" value="Hearn, 1961" />
    <attribute name="ebas_organization" value="US06L, National Oceanic and Atmospheric Administration, NOAA/GML, Global Monitoring Laboratory, 325 Broadway, , CO 80305-3, Boulder, U.S.A." />
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    <attribute name="ebas_framework_name" value="World Data Centre for Reactive Gases, " />
    <attribute name="ebas_framework_description" value="The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., " />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Effertz, Peter, peter.effertz@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&quot;, &quot;Petropavlovskikh, Irina, Irina.petro@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&quot;" />
    <attribute name="ebas_submitter" value="&quot;Effertz, Peter, peter.effertz@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&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: GAW-WDCRG, NOAA-ESRL. We encourage users to contact the data providers, who can provide detailed information about the measurements and scientific insight.  In cases where the data are central to a publication, co-authorship for data providers may be appropriate. https://dx.doi.org/10.7289/V57P8WBF" />
    <attribute name="ebas_comment" value="Data converted on import into EBAS from 'nmol/mol' to 'ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.99534. Detection limit converted from '1.0 nmol/mol' to '1.995 ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.99534." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ozonemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="ozone mass concentration" />
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    <attribute name="actris_instrument_type_preferred_term" value="ultra-violet fluorescence detector" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG, https://vocabulary.actris.nilu.no/actris_controlled_lists/NOAA-ESRL" />
    <attribute name="actris_framework_preferred_term" value="GAW-WDCRG, NOAA-ESRL" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_ozone_ug_per_m3_amean" shape="qc_ozone_ug_per_m3_amean_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
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  <variable name="meta_ozone_ug_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_ozone_nmol_per_mol_max" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ozone_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="v_ozone_nmol_per_mol_max_qc v_ozone_nmol_per_mol_max_ebasmetadata" />
    <attribute name="cell_methods" value="time: maximum" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-01-15T13:40:18.621610Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial Version, Generated by Peter Effertz (CIRES and NOAA-GML) on 2025 12 10, Version 2" />
    <attribute name="ebas_statistics" value="maximum" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="DK0025G" />
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    <attribute name="ebas_station_name" value="Summit" />
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    <attribute name="ebas_measurement_altitude" value="3248.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
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    <attribute name="ebas_component" value="ozone" />
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    <attribute name="ebas_flow_rate" value="1.4 l/min" />
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    <attribute name="ebas_zero_span_check_interval" value="1w" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_detection_limit" value="1.0 nmol/mol" />
    <attribute name="ebas_absorption_cross_section" value="Hearn, 1961" />
    <attribute name="ebas_organization" value="US06L, National Oceanic and Atmospheric Administration, NOAA/GML, Global Monitoring Laboratory, 325 Broadway, , CO 80305-3, Boulder, U.S.A." />
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    <attribute name="ebas_framework_name" value="World Data Centre for Reactive Gases, " />
    <attribute name="ebas_framework_description" value="The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., " />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig" />
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    <attribute name="actris_variable_preferred_term" value="ozone amount fraction" />
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    <attribute name="actris_framework_preferred_term" value="GAW-WDCRG, NOAA-ESRL" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ozone_in_air" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_statistics" value="maximum" />
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    <attribute name="ebas_sample_duration" value="1h" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ozone_in_air" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_maintenance_description" value="Weekly Zero and Level Checks; cleaning and maintenance every three years" />
    <attribute name="ebas_flow_rate" value="1.4 l/min" />
    <attribute name="ebas_zero_span_check_type" value="manual" />
    <attribute name="ebas_zero_span_check_interval" value="1w" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_detection_limit" value="1.0 nmol/mol" />
    <attribute name="ebas_absorption_cross_section" value="Hearn, 1961" />
    <attribute name="ebas_organization" value="US06L, National Oceanic and Atmospheric Administration, NOAA/GML, Global Monitoring Laboratory, 325 Broadway, , CO 80305-3, Boulder, U.S.A." />
    <attribute name="ebas_framework_acronym" value="GAW-WDCRG, NOAA-ESRL" />
    <attribute name="ebas_framework_name" value="World Data Centre for Reactive Gases, " />
    <attribute name="ebas_framework_description" value="The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., " />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Effertz, Peter, peter.effertz@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&quot;, &quot;Petropavlovskikh, Irina, Irina.petro@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&quot;" />
    <attribute name="ebas_submitter" value="&quot;Effertz, Peter, peter.effertz@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&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: GAW-WDCRG, NOAA-ESRL. We encourage users to contact the data providers, who can provide detailed information about the measurements and scientific insight.  In cases where the data are central to a publication, co-authorship for data providers may be appropriate. https://dx.doi.org/10.7289/V57P8WBF" />
    <attribute name="ebas_comment" value="Data converted on import into EBAS from 'nmol/mol' to 'ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.99534. Detection limit converted from '1.0 nmol/mol' to '1.995 ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.99534. -- Data converted on export from EBAS from 'ug/m3' at 293.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.5012. Detection limit converted from '1.995 ug/m3' at 293.15 K, 1013.25 hPa to '1.0 nmol/mol', conversion factor 0.5012." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ozoneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ozone 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/ultra-violetabsorptiondetector" />
    <attribute name="actris_instrument_type_preferred_term" value="ultra-violet fluorescence detector" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG, https://vocabulary.actris.nilu.no/actris_controlled_lists/NOAA-ESRL" />
    <attribute name="actris_framework_preferred_term" value="GAW-WDCRG, NOAA-ESRL" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ozone_nmol_per_mol_min" shape="qc_ozone_nmol_per_mol_min_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_ozone_nmol_per_mol_min" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ozone_ug_per_m3_min" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ozone_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="v_ozone_ug_per_m3_min_qc v_ozone_ug_per_m3_min_ebasmetadata" />
    <attribute name="cell_methods" value="time: minimum" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-01-15T13:40:18.621610Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial Version, Generated by Peter Effertz (CIRES and NOAA-GML) on 2025 12 10, Version 2" />
    <attribute name="ebas_statistics" value="minimum" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="DK0025G" />
    <attribute name="ebas_platform_code" value="DK0025S" />
    <attribute name="ebas_station_name" value="Summit" />
    <attribute name="ebas_station_wdca_id" value="GAWADK__SUM" />
    <attribute name="ebas_station_gaw_id" value="SUM" />
    <attribute name="ebas_station_gaw_name" value="Summit" />
    <attribute name="ebas_station_land_use" value="Snowfield" />
    <attribute name="ebas_station_setting" value="Polar" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="72.5800018311" />
    <attribute name="ebas_station_longitude" type="double" value="-38.4799995422" />
    <attribute name="ebas_station_altitude" value="3238.0 m" />
    <attribute name="ebas_measurement_altitude" value="3248.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ozone" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="US06L" />
    <attribute name="ebas_instrument_type" value="uv_abs" />
    <attribute name="ebas_instrument_name" value="Thermo_49C_SUM" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="49C" />
    <attribute name="ebas_instrument_serial_number" value="528413365" />
    <attribute name="ebas_method_ref" value="US06L_AM" />
    <attribute name="ebas_standard_method" value="SOP=GAW_209(2013)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <attribute name="ebas_inlet_tube_outer_diameter" value="6.35 mm" />
    <attribute name="ebas_inlet_tube_inner_diameter" value="4.76 mm" />
    <attribute name="ebas_inlet_tube_length" value="7.0 m" />
    <attribute name="ebas_maintenance_description" value="Weekly Zero and Level Checks; cleaning and maintenance every three years" />
    <attribute name="ebas_flow_rate" value="1.4 l/min" />
    <attribute name="ebas_zero_span_check_type" value="manual" />
    <attribute name="ebas_zero_span_check_interval" value="1w" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_volume_std_temperature" value="293.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="1.995 ug/m3" />
    <attribute name="ebas_absorption_cross_section" value="Hearn, 1961" />
    <attribute name="ebas_organization" value="US06L, National Oceanic and Atmospheric Administration, NOAA/GML, Global Monitoring Laboratory, 325 Broadway, , CO 80305-3, Boulder, U.S.A." />
    <attribute name="ebas_framework_acronym" value="GAW-WDCRG, NOAA-ESRL" />
    <attribute name="ebas_framework_name" value="World Data Centre for Reactive Gases, " />
    <attribute name="ebas_framework_description" value="The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., " />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Effertz, Peter, peter.effertz@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&quot;, &quot;Petropavlovskikh, Irina, Irina.petro@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&quot;" />
    <attribute name="ebas_submitter" value="&quot;Effertz, Peter, peter.effertz@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&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: GAW-WDCRG, NOAA-ESRL. We encourage users to contact the data providers, who can provide detailed information about the measurements and scientific insight.  In cases where the data are central to a publication, co-authorship for data providers may be appropriate. https://dx.doi.org/10.7289/V57P8WBF" />
    <attribute name="ebas_comment" value="Data converted on import into EBAS from 'nmol/mol' to 'ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.99534. Detection limit converted from '1.0 nmol/mol' to '1.995 ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.99534." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ozonemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="ozone 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_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
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    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ultra-violetabsorptiondetector" />
    <attribute name="actris_instrument_type_preferred_term" value="ultra-violet fluorescence detector" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG, https://vocabulary.actris.nilu.no/actris_controlled_lists/NOAA-ESRL" />
    <attribute name="actris_framework_preferred_term" value="GAW-WDCRG, NOAA-ESRL" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ozone_ug_per_m3_min" shape="qc_ozone_ug_per_m3_min_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_ozone_ug_per_m3_min" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ozone_nmol_per_mol_stddev" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ozone_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="v_ozone_nmol_per_mol_stddev_qc v_ozone_nmol_per_mol_stddev_ebasmetadata" />
    <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="2026-01-15T13:40:18.621610Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial Version, Generated by Peter Effertz (CIRES and NOAA-GML) on 2025 12 10, Version 2" />
    <attribute name="ebas_statistics" value="stddev" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="DK0025G" />
    <attribute name="ebas_platform_code" value="DK0025S" />
    <attribute name="ebas_station_name" value="Summit" />
    <attribute name="ebas_station_wdca_id" value="GAWADK__SUM" />
    <attribute name="ebas_station_gaw_id" value="SUM" />
    <attribute name="ebas_station_gaw_name" value="Summit" />
    <attribute name="ebas_station_land_use" value="Snowfield" />
    <attribute name="ebas_station_setting" value="Polar" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="72.5800018311" />
    <attribute name="ebas_station_longitude" type="double" value="-38.4799995422" />
    <attribute name="ebas_station_altitude" value="3238.0 m" />
    <attribute name="ebas_measurement_altitude" value="3248.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ozone" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="US06L" />
    <attribute name="ebas_instrument_type" value="uv_abs" />
    <attribute name="ebas_instrument_name" value="Thermo_49C_SUM" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="49C" />
    <attribute name="ebas_instrument_serial_number" value="528413365" />
    <attribute name="ebas_method_ref" value="US06L_AM" />
    <attribute name="ebas_standard_method" value="SOP=GAW_209(2013)" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <attribute name="ebas_inlet_tube_outer_diameter" value="6.35 mm" />
    <attribute name="ebas_inlet_tube_inner_diameter" value="4.76 mm" />
    <attribute name="ebas_inlet_tube_length" value="7.0 m" />
    <attribute name="ebas_maintenance_description" value="Weekly Zero and Level Checks; cleaning and maintenance every three years" />
    <attribute name="ebas_flow_rate" value="1.4 l/min" />
    <attribute name="ebas_zero_span_check_type" value="manual" />
    <attribute name="ebas_zero_span_check_interval" value="1w" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_detection_limit" value="1.0 nmol/mol" />
    <attribute name="ebas_absorption_cross_section" value="Hearn, 1961" />
    <attribute name="ebas_organization" value="US06L, National Oceanic and Atmospheric Administration, NOAA/GML, Global Monitoring Laboratory, 325 Broadway, , CO 80305-3, Boulder, U.S.A." />
    <attribute name="ebas_framework_acronym" value="GAW-WDCRG, NOAA-ESRL" />
    <attribute name="ebas_framework_name" value="World Data Centre for Reactive Gases, " />
    <attribute name="ebas_framework_description" value="The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., " />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Effertz, Peter, peter.effertz@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&quot;, &quot;Petropavlovskikh, Irina, Irina.petro@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&quot;" />
    <attribute name="ebas_submitter" value="&quot;Effertz, Peter, peter.effertz@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&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: GAW-WDCRG, NOAA-ESRL. We encourage users to contact the data providers, who can provide detailed information about the measurements and scientific insight.  In cases where the data are central to a publication, co-authorship for data providers may be appropriate. https://dx.doi.org/10.7289/V57P8WBF" />
    <attribute name="ebas_comment" value="Data converted on import into EBAS from 'nmol/mol' to 'ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.99534. Detection limit converted from '1.0 nmol/mol' to '1.995 ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.99534. -- Data converted on export from EBAS from 'ug/m3' at 293.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.5012. Detection limit converted from '1.995 ug/m3' at 293.15 K, 1013.25 hPa to '1.0 nmol/mol', conversion factor 0.5012." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ozoneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ozone 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" />
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    <attribute name="actris_instrument_type_preferred_term" value="ultra-violet fluorescence detector" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG, https://vocabulary.actris.nilu.no/actris_controlled_lists/NOAA-ESRL" />
    <attribute name="actris_framework_preferred_term" value="GAW-WDCRG, NOAA-ESRL" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ozone_nmol_per_mol_stddev" shape="qc_ozone_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_ozone_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_ozone_ug_per_m3_stddev" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ozone_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="v_ozone_ug_per_m3_stddev_qc v_ozone_ug_per_m3_stddev_ebasmetadata" />
    <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="2026-01-15T13:40:18.621610Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial Version, Generated by Peter Effertz (CIRES and NOAA-GML) on 2025 12 10, Version 2" />
    <attribute name="ebas_statistics" value="stddev" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="DK0025G" />
    <attribute name="ebas_platform_code" value="DK0025S" />
    <attribute name="ebas_station_name" value="Summit" />
    <attribute name="ebas_station_wdca_id" value="GAWADK__SUM" />
    <attribute name="ebas_station_gaw_id" value="SUM" />
    <attribute name="ebas_station_gaw_name" value="Summit" />
    <attribute name="ebas_station_land_use" value="Snowfield" />
    <attribute name="ebas_station_setting" value="Polar" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="72.5800018311" />
    <attribute name="ebas_station_longitude" type="double" value="-38.4799995422" />
    <attribute name="ebas_station_altitude" value="3238.0 m" />
    <attribute name="ebas_measurement_altitude" value="3248.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ozone" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="US06L" />
    <attribute name="ebas_instrument_type" value="uv_abs" />
    <attribute name="ebas_instrument_name" value="Thermo_49C_SUM" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="49C" />
    <attribute name="ebas_instrument_serial_number" value="528413365" />
    <attribute name="ebas_method_ref" value="US06L_AM" />
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    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_tube_material" value="Teflon" />
    <attribute name="ebas_inlet_tube_outer_diameter" value="6.35 mm" />
    <attribute name="ebas_inlet_tube_inner_diameter" value="4.76 mm" />
    <attribute name="ebas_inlet_tube_length" value="7.0 m" />
    <attribute name="ebas_maintenance_description" value="Weekly Zero and Level Checks; cleaning and maintenance every three years" />
    <attribute name="ebas_flow_rate" value="1.4 l/min" />
    <attribute name="ebas_zero_span_check_type" value="manual" />
    <attribute name="ebas_zero_span_check_interval" value="1w" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_volume_std_temperature" value="293.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="1.995 ug/m3" />
    <attribute name="ebas_absorption_cross_section" value="Hearn, 1961" />
    <attribute name="ebas_organization" value="US06L, National Oceanic and Atmospheric Administration, NOAA/GML, Global Monitoring Laboratory, 325 Broadway, , CO 80305-3, Boulder, U.S.A." />
    <attribute name="ebas_framework_acronym" value="GAW-WDCRG, NOAA-ESRL" />
    <attribute name="ebas_framework_name" value="World Data Centre for Reactive Gases, " />
    <attribute name="ebas_framework_description" value="The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme., " />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Effertz, Peter, peter.effertz@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&quot;, &quot;Petropavlovskikh, Irina, Irina.petro@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&quot;" />
    <attribute name="ebas_submitter" value="&quot;Effertz, Peter, peter.effertz@noaa.gov, National Oceanic and Atmospheric Administration/Earth System Research Laboratory/Global Monitoring Division, NOAA/ESRL/GMD, , 325 Broadway, , 80305, &quot;&quot;Boulder, CO&quot;&quot;, USA&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: GAW-WDCRG, NOAA-ESRL. We encourage users to contact the data providers, who can provide detailed information about the measurements and scientific insight.  In cases where the data are central to a publication, co-authorship for data providers may be appropriate. https://dx.doi.org/10.7289/V57P8WBF" />
    <attribute name="ebas_comment" value="Data converted on import into EBAS from 'nmol/mol' to 'ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.99534. Detection limit converted from '1.0 nmol/mol' to '1.995 ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.99534." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ozonemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="ozone 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_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/ultra-violetabsorptiondetector" />
    <attribute name="actris_instrument_type_preferred_term" value="ultra-violet fluorescence detector" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG, https://vocabulary.actris.nilu.no/actris_controlled_lists/NOAA-ESRL" />
    <attribute name="actris_framework_preferred_term" value="GAW-WDCRG, NOAA-ESRL" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ozone_ug_per_m3_stddev" shape="qc_ozone_ug_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_ozone_ug_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>
