<?xml version="1.0" encoding="UTF-8"?>
<netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2" location="Not provided because of security concerns.">
  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Ground based in situ observations of sulphur_dioxide at Birmingham Air Quality Site (BAQS) (GB0101U) using uv_fluoresc" />
  <attribute name="keywords" value="Birmingham Air Quality Site (BAQS), RI-URBANS, air, GB0101U, mole_fraction_of_sulfur_dioxide_in_air, mass_concentration_of_sulphur_dioxide_expressed_as_sulphur_in_air, sulphur_dioxide" />
  <attribute name="id" value="2YAK-7RGG.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="RI-URBANS" />
  <attribute name="acknowledgement" value="Request acknowledgement details from data originator" />
  <attribute name="doi" value="https://doi.org/10.48597/2YAK-7RGG" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Roy Harrison, Bill Bloss, Siqi Hou, Roy Harrison, Bill Bloss, Siqi Hou, sulphur_dioxide - uv_fluoresc at Birmingham Air Quality Site (BAQS), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/2YAK-7RGG" />
  <attribute name="summary" value="Ground based in situ observations of sulphur_dioxide at Birmingham Air Quality Site (BAQS) (GB0101U) using uv_fluoresc. 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: sulphur_dioxide in air (mole_fraction_of_sulfur_dioxide_in_air), sulphur_dioxide in air (mass_concentration_of_sulphur_dioxide_expressed_as_sulphur_in_air), sulphur_dioxide in air (mole_fraction_of_sulfur_dioxide_in_air), sulphur_dioxide in air (mass_concentration_of_sulphur_dioxide_expressed_as_sulphur_in_air), sulphur_dioxide in air (mole_fraction_of_sulfur_dioxide_in_air), sulphur_dioxide in air (mass_concentration_of_sulphur_dioxide_expressed_as_sulphur_in_air), sulphur_dioxide in air (mole_fraction_of_sulfur_dioxide_in_air), sulphur_dioxide in air (mass_concentration_of_sulphur_dioxide_expressed_as_sulphur_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="GB16L, University of Birmingham, UoB, School of Geography Earth and Environmental Sciences, College of Life and Environmental Sciences, Edgbaston, B15 2TT, Birmingham, UK" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2023-06-20T15:47:05 UTC" />
  <attribute name="date_metadata_modified" value="2023-06-20T15:47:05 UTC" />
  <attribute name="creator_name" value="Roy Harrison, Bill Bloss, Siqi Hou, Roy Harrison, Bill Bloss, Siqi Hou" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value=", , s.hou.1@bham.ac.uk, , , s.hou.1@bham.ac.uk" />
  <attribute name="creator_institution" value=", , &quot;University of Birmingham, School of Geography Earth and Environmental Sciences, UoB&quot;, , , &quot;University of Birmingham, School of Geography Earth and Environmental Sciences, UoB&quot;" />
  <attribute name="contributor_name" value="David Beddows, David Beddows" />
  <attribute name="contributor_role" value="data submitter, data submitter" />
  <attribute name="publisher_type" value="institution" />
  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_institution" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_email" value="ebas@nilu.no" />
  <attribute name="publisher_url" value="https://www.nilu.no/" />
  <attribute name="geospatial_bounds" value="POINT Z (52.456 -1.929 143.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <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="time_coverage_start" value="2019-01-01T00:00:00 UTC" />
  <attribute name="time_coverage_end" value="2021-01-01T00:04:13 UTC" />
  <attribute name="time_coverage_duration" value="P0002-00-00T00:04:13" />
  <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="Roy Harrison, Bill Bloss, Siqi Hou, Roy Harrison, Bill Bloss, Siqi Hou, sulphur_dioxide - uv_fluoresc at Birmingham Air Quality Site (BAQS), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/2YAK-7RGG" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="2YAK-7RGG.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/2YAK-7RGG" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/2YAK-7RGG" />
  <attribute name="ebas_file_creation" value="2023-12-10T21:49:36.234106 UTC" />
  <attribute name="ebas_export_state" value="2023-06-20T11:50:18.393202 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="20190101000000" />
  <attribute name="ebas_revision_date" value="20230620154705" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="initial revision,manually inspected" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="2y" />
  <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" value="52.456" />
  <attribute name="ebas_station_longitude" value="-1.929" />
  <attribute name="ebas_station_altitude" value="143.0 m" />
  <attribute name="ebas_measuremenet_latitude" value="52.456" />
  <attribute name="ebas_measurement_longitude" 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="sulphur_dioxide" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="GB16L" />
  <attribute name="ebas_instrument_type" value="uv_fluoresc" />
  <attribute name="ebas_instrument_name" value="SO2_Inst" />
  <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
  <attribute name="ebas_instrument_model" value="T100" />
  <attribute name="ebas_instrument_serial_number" value="12345" />
  <attribute name="ebas_method_ref" value="NO01L_uv_ab" />
  <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" />
  <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_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_contact_name" value="Markus Fiebig" />
  <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no" />
  <attribute name="ebas_originator" value="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" />
  <attribute name="ebas_submitter" value="Beddows, David, , , , , , , , , " />
  <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  <attribute name="_NCProperties" value="version=2,netcdf=4.9.0,hdf5=1.12.2" />
  <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="comment" value="{&#xA;    &quot;Data definition&quot;: &quot;EBAS_1.1&quot;,&#xA;    &quot;Data license&quot;: &quot;https://creativecommons.org/licenses/by/4.0/&quot;,&#xA;    &quot;Citation&quot;: &quot;Roy Harrison, Bill Bloss, Siqi Hou, Roy Harrison, Bill Bloss, Siqi Hou, sulphur_dioxide - uv_fluoresc at Birmingham Air Quality Site (BAQS), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/2YAK-7RGG&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;2YAK-7RGG.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/2YAK-7RGG&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/2YAK-7RGG&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-10T21:49:36.234106 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2023-06-20T11:50:18.393202 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20190101000000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20230620154705&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Version description&quot;: &quot;initial revision,manually inspected&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;2y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1h&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1h&quot;,&#xA;    &quot;Orig. time res.&quot;: &quot;1mn&quot;,&#xA;    &quot;Station code&quot;: &quot;GB0101U&quot;,&#xA;    &quot;Platform code&quot;: &quot;GB0101S&quot;,&#xA;    &quot;Station name&quot;: &quot;Birmingham Air Quality Site (BAQS)&quot;,&#xA;    &quot;Station land use&quot;: &quot;Urban park&quot;,&#xA;    &quot;Station setting&quot;: &quot;Urban and center city&quot;,&#xA;    &quot;Station latitude&quot;: &quot;52.456&quot;,&#xA;    &quot;Station longitude&quot;: &quot;-1.929&quot;,&#xA;    &quot;Station altitude&quot;: &quot;143.0 m&quot;,&#xA;    &quot;Measurement latitude&quot;: &quot;52.456&quot;,&#xA;    &quot;Measurement longitude&quot;: &quot;-1.929&quot;,&#xA;    &quot;Measurement altitude&quot;: &quot;143.0 m&quot;,&#xA;    &quot;Measurement height&quot;: &quot;3.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Component&quot;: &quot;sulphur_dioxide&quot;,&#xA;    &quot;Matrix&quot;: &quot;air&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;GB16L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;uv_fluoresc&quot;,&#xA;    &quot;Instrument name&quot;: &quot;SO2_Inst&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;Teledyne&quot;,&#xA;    &quot;Instrument model&quot;: &quot;T100&quot;,&#xA;    &quot;Instrument serial number&quot;: &quot;12345&quot;,&#xA;    &quot;Method ref&quot;: &quot;NO01L_uv_ab&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Hat or hood&quot;,&#xA;    &quot;Inlet tube material&quot;: &quot;Glass coated steel&quot;,&#xA;    &quot;Inlet tube outer diameter&quot;: &quot;25.4 mm&quot;,&#xA;    &quot;Inlet tube length&quot;: &quot;1.0 m&quot;,&#xA;    &quot;Maintenance description&quot;: &quot;Monthly leak test&quot;,&#xA;    &quot;Flow rate&quot;: &quot;0.5 l/min&quot;,&#xA;    &quot;Zero/span check type&quot;: &quot;automatic&quot;,&#xA;    &quot;Zero/span check interval&quot;: &quot;1d&quot;,&#xA;    &quot;Humidity/temperature control&quot;: &quot;None&quot;,&#xA;    &quot;Organization&quot;: &quot;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&quot;,&#xA;    &quot;Framework acronym&quot;: &quot;RI-URBANS&quot;,&#xA;    &quot;Framework name&quot;: &quot;RI-URBANS&quot;,&#xA;    &quot;Framework contact name&quot;: &quot;Markus Fiebig&quot;,&#xA;    &quot;Framework contact email&quot;: &quot;Markus.Fiebig@nilu.no&quot;,&#xA;    &quot;Originator&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;,&#xA;    &quot;Submitter&quot;: &quot;Beddows, David, , , , , , , , , &quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;Request acknowledgement details from data originator&quot;&#xA;}" />
  <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="15384" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="2" />
  <dimension name="sulphur_dioxide_nmol_per_mol_amean_qc_flags" length="1" />
  <dimension name="sulphur_dioxide_ug_S_per_m3_amean_qc_flags" length="1" />
  <dimension name="sulphur_dioxide_nmol_per_mol_prec1587_qc_flags" length="1" />
  <dimension name="sulphur_dioxide_ug_S_per_m3_prec1587_qc_flags" length="1" />
  <dimension name="sulphur_dioxide_nmol_per_mol_perc8413_qc_flags" length="1" />
  <dimension name="sulphur_dioxide_ug_S_per_m3_perc8413_qc_flags" length="1" />
  <dimension name="sulphur_dioxide_nmol_per_mol_stddev_qc_flags" length="1" />
  <dimension name="sulphur_dioxide_ug_S_per_m3_stddev_qc_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2019-01-01T00:30:00Z" />
    <attribute name="time_coverage_end" value="2020-12-31T23:34:13Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="4105.0" />
    <attribute name="time_coverage_duration" value="P0Y0M730DT23H4M13.000S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-17" />
    <attribute name="nciso_version" value="2.4.8" />
  </group>
  <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="sulphur_dioxide_nmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_sulfur_dioxide_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="sulphur_dioxide_nmol_per_mol_amean_qc sulphur_dioxide_nmol_per_mol_amean_ebasmetadata" />
    <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="20230620154705" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision,manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="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" value="52.456" />
    <attribute name="ebas_station_longitude" value="-1.929" />
    <attribute name="ebas_station_altitude" value="143.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="52.456" />
    <attribute name="ebas_measurement_longitude" 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="sulphur_dioxide" />
    <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_fluoresc" />
    <attribute name="ebas_instrument_name" value="SO2_Inst" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T100" />
    <attribute name="ebas_instrument_serial_number" value="12345" />
    <attribute name="ebas_method_ref" value="NO01L_uv_ab" />
    <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" />
    <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_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_contact_name" value="Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data converted on import into EBAS from 'nmol/mol' to 'ug S/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.4304. -- Data converted on export from EBAS from 'ug S/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.699." />
  </variable>
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="sulphur_dioxide_nmol_per_mol_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sulphur_dioxide_ug_S_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sulphur_dioxide_expressed_as_sulphur_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="sulphur_dioxide_ug S_per_m3_amean_qc sulphur_dioxide_ug S_per_m3_amean_ebasmetadata" />
    <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="20230620154705" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision,manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="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" value="52.456" />
    <attribute name="ebas_station_longitude" value="-1.929" />
    <attribute name="ebas_station_altitude" value="143.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="52.456" />
    <attribute name="ebas_measurement_longitude" 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="sulphur_dioxide" />
    <attribute name="ebas_unit" value="ug S/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB16L" />
    <attribute name="ebas_instrument_type" value="uv_fluoresc" />
    <attribute name="ebas_instrument_name" value="SO2_Inst" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T100" />
    <attribute name="ebas_instrument_serial_number" value="12345" />
    <attribute name="ebas_method_ref" value="NO01L_uv_ab" />
    <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" />
    <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="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <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_contact_name" value="Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data converted on import into EBAS from 'nmol/mol' to 'ug S/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.4304." />
  </variable>
  <variable name="sulphur_dioxide_ug_S_per_m3_amean_qc" shape="sulphur_dioxide_ug_S_per_m3_amean_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="sulphur_dioxide_ug_S_per_m3_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sulphur_dioxide_nmol_per_mol_prec1587" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_sulfur_dioxide_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="sulphur_dioxide_nmol_per_mol_prec1587_qc sulphur_dioxide_nmol_per_mol_prec1587_ebasmetadata" />
    <attribute name="cell_methods" value="time: percentile:15.87" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230620154705" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision,manually inspected" />
    <attribute name="ebas_statistics" value="percentile:15.87" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="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" value="52.456" />
    <attribute name="ebas_station_longitude" value="-1.929" />
    <attribute name="ebas_station_altitude" value="143.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="52.456" />
    <attribute name="ebas_measurement_longitude" 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="sulphur_dioxide" />
    <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_fluoresc" />
    <attribute name="ebas_instrument_name" value="SO2_Inst" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T100" />
    <attribute name="ebas_instrument_serial_number" value="12345" />
    <attribute name="ebas_method_ref" value="NO01L_uv_ab" />
    <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" />
    <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_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_contact_name" value="Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data converted on import into EBAS from 'nmol/mol' to 'ug S/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.4304. -- Data converted on export from EBAS from 'ug S/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.699." />
  </variable>
  <variable name="sulphur_dioxide_nmol_per_mol_prec1587_qc" shape="sulphur_dioxide_nmol_per_mol_prec1587_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="sulphur_dioxide_nmol_per_mol_prec1587_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sulphur_dioxide_ug_S_per_m3_prec1587" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sulphur_dioxide_expressed_as_sulphur_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="sulphur_dioxide_ug S_per_m3_prec1587_qc sulphur_dioxide_ug S_per_m3_prec1587_ebasmetadata" />
    <attribute name="cell_methods" value="time: percentile:15.87" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230620154705" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision,manually inspected" />
    <attribute name="ebas_statistics" value="percentile:15.87" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="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" value="52.456" />
    <attribute name="ebas_station_longitude" value="-1.929" />
    <attribute name="ebas_station_altitude" value="143.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="52.456" />
    <attribute name="ebas_measurement_longitude" 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="sulphur_dioxide" />
    <attribute name="ebas_unit" value="ug S/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB16L" />
    <attribute name="ebas_instrument_type" value="uv_fluoresc" />
    <attribute name="ebas_instrument_name" value="SO2_Inst" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T100" />
    <attribute name="ebas_instrument_serial_number" value="12345" />
    <attribute name="ebas_method_ref" value="NO01L_uv_ab" />
    <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" />
    <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="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <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" />
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    <attribute name="ebas_framework_name" value="RI-URBANS" />
    <attribute name="ebas_framework_contact_name" value="Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data converted on import into EBAS from 'nmol/mol' to 'ug S/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.4304." />
  </variable>
  <variable name="sulphur_dioxide_ug_S_per_m3_prec1587_qc" shape="sulphur_dioxide_ug_S_per_m3_prec1587_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="sulphur_dioxide_ug_S_per_m3_prec1587_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sulphur_dioxide_nmol_per_mol_perc8413" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_sulfur_dioxide_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="sulphur_dioxide_nmol_per_mol_perc8413_qc sulphur_dioxide_nmol_per_mol_perc8413_ebasmetadata" />
    <attribute name="cell_methods" value="time: percentile:84.13" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230620154705" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision,manually inspected" />
    <attribute name="ebas_statistics" value="percentile:84.13" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="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" value="52.456" />
    <attribute name="ebas_station_longitude" value="-1.929" />
    <attribute name="ebas_station_altitude" value="143.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="52.456" />
    <attribute name="ebas_measurement_longitude" 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="sulphur_dioxide" />
    <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_fluoresc" />
    <attribute name="ebas_instrument_name" value="SO2_Inst" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T100" />
    <attribute name="ebas_instrument_serial_number" value="12345" />
    <attribute name="ebas_method_ref" value="NO01L_uv_ab" />
    <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" />
    <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_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" />
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    <attribute name="ebas_framework_name" value="RI-URBANS" />
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    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data converted on import into EBAS from 'nmol/mol' to 'ug S/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.4304. -- Data converted on export from EBAS from 'ug S/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.699." />
  </variable>
  <variable name="sulphur_dioxide_nmol_per_mol_perc8413_qc" shape="sulphur_dioxide_nmol_per_mol_perc8413_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="sulphur_dioxide_nmol_per_mol_perc8413_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sulphur_dioxide_ug_S_per_m3_perc8413" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sulphur_dioxide_expressed_as_sulphur_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="sulphur_dioxide_ug S_per_m3_perc8413_qc sulphur_dioxide_ug S_per_m3_perc8413_ebasmetadata" />
    <attribute name="cell_methods" value="time: percentile:84.13" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20230620154705" />
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    <attribute name="ebas_version_description" value="initial revision,manually inspected" />
    <attribute name="ebas_statistics" value="percentile:84.13" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="GB0101U" />
    <attribute name="ebas_platform_code" value="GB0101S" />
    <attribute name="ebas_station_name" value="Birmingham Air Quality Site (BAQS)" />
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    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" value="52.456" />
    <attribute name="ebas_station_longitude" value="-1.929" />
    <attribute name="ebas_station_altitude" value="143.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="52.456" />
    <attribute name="ebas_measurement_longitude" 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="sulphur_dioxide" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB16L" />
    <attribute name="ebas_instrument_type" value="uv_fluoresc" />
    <attribute name="ebas_instrument_name" value="SO2_Inst" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T100" />
    <attribute name="ebas_instrument_serial_number" value="12345" />
    <attribute name="ebas_method_ref" value="NO01L_uv_ab" />
    <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" />
    <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="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <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" />
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  </variable>
  <variable name="sulphur_dioxide_ug_S_per_m3_perc8413_qc" shape="sulphur_dioxide_ug_S_per_m3_perc8413_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="sulphur_dioxide_ug_S_per_m3_perc8413_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sulphur_dioxide_nmol_per_mol_stddev" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_sulfur_dioxide_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="sulphur_dioxide_nmol_per_mol_stddev_qc sulphur_dioxide_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="20230620154705" />
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    <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" value="52.456" />
    <attribute name="ebas_station_longitude" value="-1.929" />
    <attribute name="ebas_station_altitude" value="143.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="52.456" />
    <attribute name="ebas_measurement_longitude" 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="sulphur_dioxide" />
    <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_fluoresc" />
    <attribute name="ebas_instrument_name" value="SO2_Inst" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T100" />
    <attribute name="ebas_instrument_serial_number" value="12345" />
    <attribute name="ebas_method_ref" value="NO01L_uv_ab" />
    <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" />
    <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_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_contact_name" value="Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data converted on import into EBAS from 'nmol/mol' to 'ug S/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.4304. -- Data converted on export from EBAS from 'ug S/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.699." />
  </variable>
  <variable name="sulphur_dioxide_nmol_per_mol_stddev_qc" shape="sulphur_dioxide_nmol_per_mol_stddev_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="sulphur_dioxide_nmol_per_mol_stddev_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sulphur_dioxide_ug_S_per_m3_stddev" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sulphur_dioxide_expressed_as_sulphur_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="sulphur_dioxide_ug S_per_m3_stddev_qc sulphur_dioxide_ug S_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="20230620154705" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision,manually inspected" />
    <attribute name="ebas_statistics" value="stddev" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="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" value="52.456" />
    <attribute name="ebas_station_longitude" value="-1.929" />
    <attribute name="ebas_station_altitude" value="143.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="52.456" />
    <attribute name="ebas_measurement_longitude" 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="sulphur_dioxide" />
    <attribute name="ebas_unit" value="ug S/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB16L" />
    <attribute name="ebas_instrument_type" value="uv_fluoresc" />
    <attribute name="ebas_instrument_name" value="SO2_Inst" />
    <attribute name="ebas_instrument_manufacturer" value="Teledyne" />
    <attribute name="ebas_instrument_model" value="T100" />
    <attribute name="ebas_instrument_serial_number" value="12345" />
    <attribute name="ebas_method_ref" value="NO01L_uv_ab" />
    <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" />
    <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="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <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_contact_name" value="Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data converted on import into EBAS from 'nmol/mol' to 'ug S/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.4304." />
  </variable>
  <variable name="sulphur_dioxide_ug_S_per_m3_stddev_qc" shape="sulphur_dioxide_ug_S_per_m3_stddev_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="sulphur_dioxide_ug_S_per_m3_stddev_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="time" shape="time" type="double">
    <attribute name="long_name" value="time of measurement" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
  <variable name="metadata_time" shape="metadata_time" type="double">
    <attribute name="long_name" value="time of ebas metadata intervals" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
