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  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Ozone at Birmingham Air Quality Site (BAQS)" />
  <attribute name="summary" value="Ozone at Birmingham Air Quality Site (BAQS). These measurements are gathered as a part of the following projects RI-URBANS 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)']" />
  <attribute name="keywords" value="&quot;Birmingham Air Quality Site (BAQS)&quot; GB0101U ozone air RI-URBANS mole_fraction_of_ozone_in_air mass_concentration_of_ozone_in_air" />
  <attribute name="id" value="BWQ8-DTFA.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="RI-URBANS" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/BWQ8-DTFA" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Harrison, R., Bloss, B., Hou, S., RI-URBANS, 2023, Ozone at Birmingham Air Quality Site (BAQS), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/BWQ8-DTFA" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="GB16L &quot;University of Birmingham&quot; UoB &quot;School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences&quot; Edgbaston &quot;B15 2TT&quot; Birmingham UK" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2023-10-09T12:36:13.354023Z" />
  <attribute name="date_metadata_modified" value="2023-10-09T12:36:13Z" />
  <attribute name="creator_name" value="Roy Harrison, Bill Bloss, Siqi Hou" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value=", , s.hou.1@bham.ac.uk" />
  <attribute name="creator_institution" value=", , &quot;University of Birmingham, School of Geography Earth and Environmental Sciences, UoB&quot;" />
  <attribute name="contributor_name" value="David Beddows" />
  <attribute name="contributor_role" value="data submitter" />
  <attribute name="publisher_type" value="institution" />
  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_institution" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_email" value="ebas@nilu.no" />
  <attribute name="publisher_url" value="https://www.nilu.no/" />
  <attribute name="geospatial_bounds" value="POINT Z (-1.929 52.456 143)" />
  <attribute name="geospatial_lat_min" type="double" value="52.456" />
  <attribute name="geospatial_lat_max" type="double" value="52.456" />
  <attribute name="geospatial_lon_min" type="double" value="-1.929" />
  <attribute name="geospatial_lon_max" type="double" value="-1.929" />
  <attribute name="geospatial_vertical_min" type="double" value="143.0" />
  <attribute name="geospatial_vertical_max" type="double" value="143.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2019-01-01T00:00:00Z" />
  <attribute name="time_coverage_end" value="2022-01-01T00:00:00Z" />
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  <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="Harrison, R., Bloss, B., Hou, S., RI-URBANS, 2023, Ozone at Birmingham Air Quality Site (BAQS), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/BWQ8-DTFA" />
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  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="BWQ8-DTFA.nc" />
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  <attribute name="ebas_file_creation" value="2026-06-10T15:17:07.752652Z" />
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  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="2019-01-01T00:00:00.000000Z" />
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  <attribute name="ebas_version" value="2" />
  <attribute name="ebas_version_description" value="initial revision,manually inspected" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="3y" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_sample_duration" value="1h" />
  <attribute name="ebas_orig_time_res" value="1mn" />
  <attribute name="ebas_station_code" value="GB0101U" />
  <attribute name="ebas_platform_code" value="GB0101S" />
  <attribute name="ebas_station_name" value="Birmingham Air Quality Site (BAQS)" />
  <attribute name="ebas_station_land_use" value="Urban park" />
  <attribute name="ebas_station_setting" value="Urban and center city" />
  <attribute name="ebas_station_latitude" type="double" value="52.456" />
  <attribute name="ebas_station_longitude" type="double" value="-1.929" />
  <attribute name="ebas_station_altitude" value="143.0 m" />
  <attribute name="ebas_measurement_latitude" type="double" value="52.456" />
  <attribute name="ebas_measurement_longitude" type="double" value="-1.929" />
  <attribute name="ebas_measurement_altitude" value="143.0 m" />
  <attribute name="ebas_measurement_height" value="3.0 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="GB16L" />
  <attribute name="ebas_instrument_type" value="uv_abs" />
  <attribute name="ebas_instrument_name" value="uv_abs_BAQS" />
  <attribute name="ebas_instrument_manufacturer" value="Thermo" />
  <attribute name="ebas_instrument_model" value="49i" />
  <attribute name="ebas_instrument_serial_number" value="0822531182" />
  <attribute name="ebas_method_ref" value="GB16L_uv_ab" />
  <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="Glass coated steel" />
  <attribute name="ebas_inlet_tube_outer_diameter" value="25.4 mm" />
  <attribute name="ebas_inlet_tube_length" value="1.0 m" />
  <attribute name="ebas_maintenance_description" value="Monthly leak test, inlet filter checked every 2 months, ozone scrubber checked and replaced if needed once/year" />
  <attribute name="ebas_flow_rate" value="0.5 l/min" />
  <attribute name="ebas_zero_span_check_type" value="automatic" />
  <attribute name="ebas_zero_span_check_interval" value="1d" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_absorption_cross_section" value="CCQM.O3.2019" />
  <attribute name="ebas_organization" value="GB16L, University of Birmingham, UoB, &quot;School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences&quot;, Edgbaston, , B15 2TT, Birmingham, UK" />
  <attribute name="ebas_framework_acronym" value="RI-URBANS" />
  <attribute name="ebas_framework_name" value="RI-URBANS" />
  <attribute name="ebas_framework_description" value="" />
  <attribute name="ebas_framework_contact_name" value="Markus Fiebig" />
  <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no" />
  <attribute name="ebas_originator" value="&quot;Harrison, Roy, , , , , , , , , &quot;, &quot;Bloss, Bill, , , , , , , , , &quot;, &quot;Hou, Siqi, s.hou.1@bham.ac.uk, University of Birmingham, UoB, School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences, Edgbaston, B15 2TT, Birmingham, UK&quot;" />
  <attribute name="ebas_submitter" value="&quot;Beddows, David, d.c.beddows@bham.ac.uk, University of Birmingham, UoB, School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences, Edgbaston, B15 2TT, Birmingham, UK&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 framework: RI-URBANS. Request acknowledgement details from data originator" />
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  <attribute name="Metadata_Conventions" value="Unidata Dataset Discovery v1.0" />
  <attribute name="geospatial_lat_units" value="degrees_north" />
  <attribute name="geospatial_lon_units" value="degrees_east" />
  <attribute name="standard_name_vocabulary" value="CF-1.7, ACDD-1.3" />
  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
  <attribute name="_CoordSysBuilder" value="ucar.nc2.internal.dataset.conv.CF1Convention" />
  <dimension name="time" length="24144" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="3" />
  <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" />
  <dimension name="qc_ozone_nmol_per_mol_min_flags" length="1" />
  <dimension name="qc_ozone_ug_per_m3_min_flags" length="1" />
  <dimension name="qc_ozone_nmol_per_mol_stddev_flags" length="1" />
  <dimension name="qc_ozone_ug_per_m3_stddev_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2019-01-01T00:30:00Z" />
    <attribute name="time_coverage_end" value="2021-12-31T23:30:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="3922.0" />
    <attribute name="time_coverage_duration" value="P0Y0M1095DT23H0M0.000S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-07-07" />
    <attribute name="nciso_version" value="2.4.8" />
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  <variable name="time_bnds" shape="time tbnds" type="double">
    <attribute name="long_name" value="time bounds for measurement" />
  </variable>
  <variable name="metadata_time_bnds" shape="metadata_time tbnds" type="double">
    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
  </variable>
  <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" />
    <attribute name="ancillary_variables" value="qc_ozone_nmol_per_mol_amean meta_ozone_nmol_per_mol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2023-10-09T12:36:13.354023Z" />
    <attribute name="ebas_version" value="2" />
    <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="GB0101U" />
    <attribute name="ebas_platform_code" value="GB0101S" />
    <attribute name="ebas_station_name" value="Birmingham Air Quality Site (BAQS)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="52.456" />
    <attribute name="ebas_station_longitude" type="double" value="-1.929" />
    <attribute name="ebas_station_altitude" value="143.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="52.456" />
    <attribute name="ebas_measurement_longitude" type="double" value="-1.929" />
    <attribute name="ebas_measurement_altitude" value="143.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 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="GB16L" />
    <attribute name="ebas_instrument_type" value="uv_abs" />
    <attribute name="ebas_instrument_name" value="uv_abs_BAQS" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="49i" />
    <attribute name="ebas_instrument_serial_number" value="0822531182" />
    <attribute name="ebas_method_ref" value="GB16L_uv_ab" />
    <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="Glass coated steel" />
    <attribute name="ebas_inlet_tube_outer_diameter" value="25.4 mm" />
    <attribute name="ebas_inlet_tube_length" value="1.0 m" />
    <attribute name="ebas_maintenance_description" value="Monthly leak test, inlet filter checked every 2 months, ozone scrubber checked and replaced if needed once/year" />
    <attribute name="ebas_flow_rate" value="0.5 l/min" />
    <attribute name="ebas_zero_span_check_type" value="automatic" />
    <attribute name="ebas_zero_span_check_interval" value="1d" />
    <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="CCQM.O3.2019" />
    <attribute name="ebas_organization" value="GB16L, University of Birmingham, UoB, &quot;School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences&quot;, Edgbaston, , B15 2TT, Birmingham, UK" />
    <attribute name="ebas_framework_acronym" value="RI-URBANS" />
    <attribute name="ebas_framework_name" value="RI-URBANS" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Harrison, Roy, , , , , , , , , &quot;, &quot;Bloss, Bill, , , , , , , , , &quot;, &quot;Hou, Siqi, s.hou.1@bham.ac.uk, University of Birmingham, UoB, School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences, Edgbaston, B15 2TT, Birmingham, UK&quot;" />
    <attribute name="ebas_submitter" value="&quot;Beddows, David, d.c.beddows@bham.ac.uk, University of Birmingham, UoB, School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences, Edgbaston, B15 2TT, Birmingham, UK&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 framework: RI-URBANS. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="starttime endtime o3 o3max o3min o3std flagstarttime endtime o3 o3max o3min o3std flag -- Data converted on import into EBAS from 'nmol/mol' to 'ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.9953. -- Data converted on export from EBAS from 'ug/m3' at 293.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.501. Detection limit converted from '2.0 ug/m3' at 293.15 K, 1013.25 hPa to '1.0 nmol/mol', conversion factor 0.501." />
    <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" />
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    <attribute name="actris_instrument_type_preferred_term" value="ultra-violet fluorescence detector" />
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    <attribute name="actris_framework_preferred_term" value="RI-URBANS" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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    <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_ozone_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_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" />
    <attribute name="ancillary_variables" value="qc_ozone_ug_per_m3_amean meta_ozone_ug_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="2023-10-09T12:36:13.354023Z" />
    <attribute name="ebas_version" value="2" />
    <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="GB0101U" />
    <attribute name="ebas_platform_code" value="GB0101S" />
    <attribute name="ebas_station_name" value="Birmingham Air Quality Site (BAQS)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="52.456" />
    <attribute name="ebas_station_longitude" type="double" value="-1.929" />
    <attribute name="ebas_station_altitude" value="143.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="52.456" />
    <attribute name="ebas_measurement_longitude" type="double" value="-1.929" />
    <attribute name="ebas_measurement_altitude" value="143.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 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="GB16L" />
    <attribute name="ebas_instrument_type" value="uv_abs" />
    <attribute name="ebas_instrument_name" value="uv_abs_BAQS" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="49i" />
    <attribute name="ebas_instrument_serial_number" value="0822531182" />
    <attribute name="ebas_method_ref" value="GB16L_uv_ab" />
    <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="Glass coated steel" />
    <attribute name="ebas_inlet_tube_outer_diameter" value="25.4 mm" />
    <attribute name="ebas_inlet_tube_length" value="1.0 m" />
    <attribute name="ebas_maintenance_description" value="Monthly leak test, inlet filter checked every 2 months, ozone scrubber checked and replaced if needed once/year" />
    <attribute name="ebas_flow_rate" value="0.5 l/min" />
    <attribute name="ebas_zero_span_check_type" value="automatic" />
    <attribute name="ebas_zero_span_check_interval" value="1d" />
    <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="2.0 ug/m3" />
    <attribute name="ebas_absorption_cross_section" value="CCQM.O3.2019" />
    <attribute name="ebas_organization" value="GB16L, University of Birmingham, UoB, &quot;School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences&quot;, Edgbaston, , B15 2TT, Birmingham, UK" />
    <attribute name="ebas_framework_acronym" value="RI-URBANS" />
    <attribute name="ebas_framework_name" value="RI-URBANS" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Harrison, Roy, , , , , , , , , &quot;, &quot;Bloss, Bill, , , , , , , , , &quot;, &quot;Hou, Siqi, s.hou.1@bham.ac.uk, University of Birmingham, UoB, School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences, Edgbaston, B15 2TT, Birmingham, UK&quot;" />
    <attribute name="ebas_submitter" value="&quot;Beddows, David, d.c.beddows@bham.ac.uk, University of Birmingham, UoB, School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences, Edgbaston, B15 2TT, Birmingham, UK&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 framework: RI-URBANS. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="starttime endtime o3 o3max o3min o3std flagstarttime endtime o3 o3max o3min o3std flag -- Data converted on import into EBAS from 'nmol/mol' to 'ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.9953." />
    <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/RI-URBANS" />
    <attribute name="actris_framework_preferred_term" value="RI-URBANS" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ozone_ug_per_m3_amean" shape="qc_ozone_ug_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_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="qc_ozone_nmol_per_mol_max meta_ozone_nmol_per_mol_max" />
    <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="2023-10-09T12:36:13.354023Z" />
    <attribute name="ebas_version" value="2" />
    <attribute name="ebas_version_description" value="initial revision,manually inspected" />
    <attribute name="ebas_statistics" value="maximum" />
    <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="GB0101U" />
    <attribute name="ebas_platform_code" value="GB0101S" />
    <attribute name="ebas_station_name" value="Birmingham Air Quality Site (BAQS)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="52.456" />
    <attribute name="ebas_station_longitude" type="double" value="-1.929" />
    <attribute name="ebas_station_altitude" value="143.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="52.456" />
    <attribute name="ebas_measurement_longitude" type="double" value="-1.929" />
    <attribute name="ebas_measurement_altitude" value="143.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 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="GB16L" />
    <attribute name="ebas_instrument_type" value="uv_abs" />
    <attribute name="ebas_instrument_name" value="uv_abs_BAQS" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="49i" />
    <attribute name="ebas_instrument_serial_number" value="0822531182" />
    <attribute name="ebas_method_ref" value="GB16L_uv_ab" />
    <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="Glass coated steel" />
    <attribute name="ebas_inlet_tube_outer_diameter" value="25.4 mm" />
    <attribute name="ebas_inlet_tube_length" value="1.0 m" />
    <attribute name="ebas_maintenance_description" value="Monthly leak test, inlet filter checked every 2 months, ozone scrubber checked and replaced if needed once/year" />
    <attribute name="ebas_flow_rate" value="0.5 l/min" />
    <attribute name="ebas_zero_span_check_type" value="automatic" />
    <attribute name="ebas_zero_span_check_interval" value="1d" />
    <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="CCQM.O3.2019" />
    <attribute name="ebas_organization" value="GB16L, University of Birmingham, UoB, &quot;School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences&quot;, Edgbaston, , B15 2TT, Birmingham, UK" />
    <attribute name="ebas_framework_acronym" value="RI-URBANS" />
    <attribute name="ebas_framework_name" value="RI-URBANS" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Harrison, Roy, , , , , , , , , &quot;, &quot;Bloss, Bill, , , , , , , , , &quot;, &quot;Hou, Siqi, s.hou.1@bham.ac.uk, University of Birmingham, UoB, School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences, Edgbaston, B15 2TT, Birmingham, UK&quot;" />
    <attribute name="ebas_submitter" value="&quot;Beddows, David, d.c.beddows@bham.ac.uk, University of Birmingham, UoB, School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences, Edgbaston, B15 2TT, Birmingham, UK&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 framework: RI-URBANS. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="starttime endtime o3 o3max o3min o3std flagstarttime endtime o3 o3max o3min o3std flag -- Data converted on import into EBAS from 'nmol/mol' to 'ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.9953. -- Data converted on export from EBAS from 'ug/m3' at 293.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.501. Detection limit converted from '2.0 ug/m3' at 293.15 K, 1013.25 hPa to '1.0 nmol/mol', conversion factor 0.501." />
    <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/RI-URBANS" />
    <attribute name="actris_framework_preferred_term" value="RI-URBANS" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ozone_nmol_per_mol_max" shape="qc_ozone_nmol_per_mol_max_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_max" 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_max" 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="qc_ozone_ug_per_m3_max meta_ozone_ug_per_m3_max" />
    <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="2023-10-09T12:36:13.354023Z" />
    <attribute name="ebas_version" value="2" />
    <attribute name="ebas_version_description" value="initial revision,manually inspected" />
    <attribute name="ebas_statistics" value="maximum" />
    <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="GB0101U" />
    <attribute name="ebas_platform_code" value="GB0101S" />
    <attribute name="ebas_station_name" value="Birmingham Air Quality Site (BAQS)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="52.456" />
    <attribute name="ebas_station_longitude" type="double" value="-1.929" />
    <attribute name="ebas_station_altitude" value="143.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="52.456" />
    <attribute name="ebas_measurement_longitude" type="double" value="-1.929" />
    <attribute name="ebas_measurement_altitude" value="143.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 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="GB16L" />
    <attribute name="ebas_instrument_type" value="uv_abs" />
    <attribute name="ebas_instrument_name" value="uv_abs_BAQS" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="49i" />
    <attribute name="ebas_instrument_serial_number" value="0822531182" />
    <attribute name="ebas_method_ref" value="GB16L_uv_ab" />
    <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="Glass coated steel" />
    <attribute name="ebas_inlet_tube_outer_diameter" value="25.4 mm" />
    <attribute name="ebas_inlet_tube_length" value="1.0 m" />
    <attribute name="ebas_maintenance_description" value="Monthly leak test, inlet filter checked every 2 months, ozone scrubber checked and replaced if needed once/year" />
    <attribute name="ebas_flow_rate" value="0.5 l/min" />
    <attribute name="ebas_zero_span_check_type" value="automatic" />
    <attribute name="ebas_zero_span_check_interval" value="1d" />
    <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="2.0 ug/m3" />
    <attribute name="ebas_absorption_cross_section" value="CCQM.O3.2019" />
    <attribute name="ebas_organization" value="GB16L, University of Birmingham, UoB, &quot;School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences&quot;, Edgbaston, , B15 2TT, Birmingham, UK" />
    <attribute name="ebas_framework_acronym" value="RI-URBANS" />
    <attribute name="ebas_framework_name" value="RI-URBANS" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Harrison, Roy, , , , , , , , , &quot;, &quot;Bloss, Bill, , , , , , , , , &quot;, &quot;Hou, Siqi, s.hou.1@bham.ac.uk, University of Birmingham, UoB, School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences, Edgbaston, B15 2TT, Birmingham, UK&quot;" />
    <attribute name="ebas_submitter" value="&quot;Beddows, David, d.c.beddows@bham.ac.uk, University of Birmingham, UoB, School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences, Edgbaston, B15 2TT, Birmingham, UK&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 framework: RI-URBANS. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="starttime endtime o3 o3max o3min o3std flagstarttime endtime o3 o3max o3min o3std flag -- Data converted on import into EBAS from 'nmol/mol' to 'ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.9953." />
    <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/RI-URBANS" />
    <attribute name="actris_framework_preferred_term" value="RI-URBANS" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ozone_ug_per_m3_max" shape="qc_ozone_ug_per_m3_max_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_max" 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_min" 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="qc_ozone_nmol_per_mol_min meta_ozone_nmol_per_mol_min" />
    <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="2023-10-09T12:36:13.354023Z" />
    <attribute name="ebas_version" value="2" />
    <attribute name="ebas_version_description" value="initial revision,manually inspected" />
    <attribute name="ebas_statistics" value="minimum" />
    <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="GB0101U" />
    <attribute name="ebas_platform_code" value="GB0101S" />
    <attribute name="ebas_station_name" value="Birmingham Air Quality Site (BAQS)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="52.456" />
    <attribute name="ebas_station_longitude" type="double" value="-1.929" />
    <attribute name="ebas_station_altitude" value="143.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="52.456" />
    <attribute name="ebas_measurement_longitude" type="double" value="-1.929" />
    <attribute name="ebas_measurement_altitude" value="143.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 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="GB16L" />
    <attribute name="ebas_instrument_type" value="uv_abs" />
    <attribute name="ebas_instrument_name" value="uv_abs_BAQS" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="49i" />
    <attribute name="ebas_instrument_serial_number" value="0822531182" />
    <attribute name="ebas_method_ref" value="GB16L_uv_ab" />
    <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="Glass coated steel" />
    <attribute name="ebas_inlet_tube_outer_diameter" value="25.4 mm" />
    <attribute name="ebas_inlet_tube_length" value="1.0 m" />
    <attribute name="ebas_maintenance_description" value="Monthly leak test, inlet filter checked every 2 months, ozone scrubber checked and replaced if needed once/year" />
    <attribute name="ebas_flow_rate" value="0.5 l/min" />
    <attribute name="ebas_zero_span_check_type" value="automatic" />
    <attribute name="ebas_zero_span_check_interval" value="1d" />
    <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="CCQM.O3.2019" />
    <attribute name="ebas_organization" value="GB16L, University of Birmingham, UoB, &quot;School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences&quot;, Edgbaston, , B15 2TT, Birmingham, UK" />
    <attribute name="ebas_framework_acronym" value="RI-URBANS" />
    <attribute name="ebas_framework_name" value="RI-URBANS" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Harrison, Roy, , , , , , , , , &quot;, &quot;Bloss, Bill, , , , , , , , , &quot;, &quot;Hou, Siqi, s.hou.1@bham.ac.uk, University of Birmingham, UoB, School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences, Edgbaston, B15 2TT, Birmingham, UK&quot;" />
    <attribute name="ebas_submitter" value="&quot;Beddows, David, d.c.beddows@bham.ac.uk, University of Birmingham, UoB, School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences, Edgbaston, B15 2TT, Birmingham, UK&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 framework: RI-URBANS. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="starttime endtime o3 o3max o3min o3std flagstarttime endtime o3 o3max o3min o3std flag -- Data converted on import into EBAS from 'nmol/mol' to 'ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.9953. -- Data converted on export from EBAS from 'ug/m3' at 293.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.501. Detection limit converted from '2.0 ug/m3' at 293.15 K, 1013.25 hPa to '1.0 nmol/mol', conversion factor 0.501." />
    <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/RI-URBANS" />
    <attribute name="actris_framework_preferred_term" value="RI-URBANS" />
    <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="qc_ozone_ug_per_m3_min meta_ozone_ug_per_m3_min" />
    <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="2023-10-09T12:36:13.354023Z" />
    <attribute name="ebas_version" value="2" />
    <attribute name="ebas_version_description" value="initial revision,manually inspected" />
    <attribute name="ebas_statistics" value="minimum" />
    <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="GB0101U" />
    <attribute name="ebas_platform_code" value="GB0101S" />
    <attribute name="ebas_station_name" value="Birmingham Air Quality Site (BAQS)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="52.456" />
    <attribute name="ebas_station_longitude" type="double" value="-1.929" />
    <attribute name="ebas_station_altitude" value="143.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="52.456" />
    <attribute name="ebas_measurement_longitude" type="double" value="-1.929" />
    <attribute name="ebas_measurement_altitude" value="143.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 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="GB16L" />
    <attribute name="ebas_instrument_type" value="uv_abs" />
    <attribute name="ebas_instrument_name" value="uv_abs_BAQS" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="49i" />
    <attribute name="ebas_instrument_serial_number" value="0822531182" />
    <attribute name="ebas_method_ref" value="GB16L_uv_ab" />
    <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="Glass coated steel" />
    <attribute name="ebas_inlet_tube_outer_diameter" value="25.4 mm" />
    <attribute name="ebas_inlet_tube_length" value="1.0 m" />
    <attribute name="ebas_maintenance_description" value="Monthly leak test, inlet filter checked every 2 months, ozone scrubber checked and replaced if needed once/year" />
    <attribute name="ebas_flow_rate" value="0.5 l/min" />
    <attribute name="ebas_zero_span_check_type" value="automatic" />
    <attribute name="ebas_zero_span_check_interval" value="1d" />
    <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="2.0 ug/m3" />
    <attribute name="ebas_absorption_cross_section" value="CCQM.O3.2019" />
    <attribute name="ebas_organization" value="GB16L, University of Birmingham, UoB, &quot;School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences&quot;, Edgbaston, , B15 2TT, Birmingham, UK" />
    <attribute name="ebas_framework_acronym" value="RI-URBANS" />
    <attribute name="ebas_framework_name" value="RI-URBANS" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Harrison, Roy, , , , , , , , , &quot;, &quot;Bloss, Bill, , , , , , , , , &quot;, &quot;Hou, Siqi, s.hou.1@bham.ac.uk, University of Birmingham, UoB, School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences, Edgbaston, B15 2TT, Birmingham, UK&quot;" />
    <attribute name="ebas_submitter" value="&quot;Beddows, David, d.c.beddows@bham.ac.uk, University of Birmingham, UoB, School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences, Edgbaston, B15 2TT, Birmingham, UK&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 framework: RI-URBANS. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="starttime endtime o3 o3max o3min o3std flagstarttime endtime o3 o3max o3min o3std flag -- Data converted on import into EBAS from 'nmol/mol' to 'ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.9953." />
    <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/RI-URBANS" />
    <attribute name="actris_framework_preferred_term" value="RI-URBANS" />
    <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="qc_ozone_nmol_per_mol_stddev meta_ozone_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="2023-10-09T12:36:13.354023Z" />
    <attribute name="ebas_version" value="2" />
    <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="GB0101U" />
    <attribute name="ebas_platform_code" value="GB0101S" />
    <attribute name="ebas_station_name" value="Birmingham Air Quality Site (BAQS)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="52.456" />
    <attribute name="ebas_station_longitude" type="double" value="-1.929" />
    <attribute name="ebas_station_altitude" value="143.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="52.456" />
    <attribute name="ebas_measurement_longitude" type="double" value="-1.929" />
    <attribute name="ebas_measurement_altitude" value="143.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 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="GB16L" />
    <attribute name="ebas_instrument_type" value="uv_abs" />
    <attribute name="ebas_instrument_name" value="uv_abs_BAQS" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="49i" />
    <attribute name="ebas_instrument_serial_number" value="0822531182" />
    <attribute name="ebas_method_ref" value="GB16L_uv_ab" />
    <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="Glass coated steel" />
    <attribute name="ebas_inlet_tube_outer_diameter" value="25.4 mm" />
    <attribute name="ebas_inlet_tube_length" value="1.0 m" />
    <attribute name="ebas_maintenance_description" value="Monthly leak test, inlet filter checked every 2 months, ozone scrubber checked and replaced if needed once/year" />
    <attribute name="ebas_flow_rate" value="0.5 l/min" />
    <attribute name="ebas_zero_span_check_type" value="automatic" />
    <attribute name="ebas_zero_span_check_interval" value="1d" />
    <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="CCQM.O3.2019" />
    <attribute name="ebas_organization" value="GB16L, University of Birmingham, UoB, &quot;School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences&quot;, Edgbaston, , B15 2TT, Birmingham, UK" />
    <attribute name="ebas_framework_acronym" value="RI-URBANS" />
    <attribute name="ebas_framework_name" value="RI-URBANS" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Harrison, Roy, , , , , , , , , &quot;, &quot;Bloss, Bill, , , , , , , , , &quot;, &quot;Hou, Siqi, s.hou.1@bham.ac.uk, University of Birmingham, UoB, School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences, Edgbaston, B15 2TT, Birmingham, UK&quot;" />
    <attribute name="ebas_submitter" value="&quot;Beddows, David, d.c.beddows@bham.ac.uk, University of Birmingham, UoB, School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences, Edgbaston, B15 2TT, Birmingham, UK&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 framework: RI-URBANS. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="starttime endtime o3 o3max o3min o3std flagstarttime endtime o3 o3max o3min o3std flag -- Data converted on import into EBAS from 'nmol/mol' to 'ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.9953. -- Data converted on export from EBAS from 'ug/m3' at 293.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.501. Detection limit converted from '2.0 ug/m3' at 293.15 K, 1013.25 hPa to '1.0 nmol/mol', conversion factor 0.501." />
    <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/RI-URBANS" />
    <attribute name="actris_framework_preferred_term" value="RI-URBANS" />
    <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="qc_ozone_ug_per_m3_stddev meta_ozone_ug_per_m3_stddev" />
    <attribute name="cell_methods" value="time: standard_deviation" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2023-10-09T12:36:13.354023Z" />
    <attribute name="ebas_version" value="2" />
    <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="GB0101U" />
    <attribute name="ebas_platform_code" value="GB0101S" />
    <attribute name="ebas_station_name" value="Birmingham Air Quality Site (BAQS)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="52.456" />
    <attribute name="ebas_station_longitude" type="double" value="-1.929" />
    <attribute name="ebas_station_altitude" value="143.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="52.456" />
    <attribute name="ebas_measurement_longitude" type="double" value="-1.929" />
    <attribute name="ebas_measurement_altitude" value="143.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 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="GB16L" />
    <attribute name="ebas_instrument_type" value="uv_abs" />
    <attribute name="ebas_instrument_name" value="uv_abs_BAQS" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="49i" />
    <attribute name="ebas_instrument_serial_number" value="0822531182" />
    <attribute name="ebas_method_ref" value="GB16L_uv_ab" />
    <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="Glass coated steel" />
    <attribute name="ebas_inlet_tube_outer_diameter" value="25.4 mm" />
    <attribute name="ebas_inlet_tube_length" value="1.0 m" />
    <attribute name="ebas_maintenance_description" value="Monthly leak test, inlet filter checked every 2 months, ozone scrubber checked and replaced if needed once/year" />
    <attribute name="ebas_flow_rate" value="0.5 l/min" />
    <attribute name="ebas_zero_span_check_type" value="automatic" />
    <attribute name="ebas_zero_span_check_interval" value="1d" />
    <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="2.0 ug/m3" />
    <attribute name="ebas_absorption_cross_section" value="CCQM.O3.2019" />
    <attribute name="ebas_organization" value="GB16L, University of Birmingham, UoB, &quot;School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences&quot;, Edgbaston, , B15 2TT, Birmingham, UK" />
    <attribute name="ebas_framework_acronym" value="RI-URBANS" />
    <attribute name="ebas_framework_name" value="RI-URBANS" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Harrison, Roy, , , , , , , , , &quot;, &quot;Bloss, Bill, , , , , , , , , &quot;, &quot;Hou, Siqi, s.hou.1@bham.ac.uk, University of Birmingham, UoB, School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences, Edgbaston, B15 2TT, Birmingham, UK&quot;" />
    <attribute name="ebas_submitter" value="&quot;Beddows, David, d.c.beddows@bham.ac.uk, University of Birmingham, UoB, School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences, Edgbaston, B15 2TT, Birmingham, UK&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 framework: RI-URBANS. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="starttime endtime o3 o3max o3min o3std flagstarttime endtime o3 o3max o3min o3std flag -- Data converted on import into EBAS from 'nmol/mol' to 'ug/m3' at 293.15 K, 1013.25 hPa, conversion factor 1.9953." />
    <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/RI-URBANS" />
    <attribute name="actris_framework_preferred_term" value="RI-URBANS" />
    <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>
