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  <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 particle_number_size_distribution at Harwell (GB0036R) using smps" />
  <attribute name="keywords" value="aerosol, GAW-WDCA, particle_number_size_distribution, EUCAARI, EUSAAR, Harwell, number_concentration_of_positive_ions_in_dry_aerosol_particles_in_air, GB0036R" />
  <attribute name="id" value="KNZ4-G5QZ.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="EUCAARI, EUSAAR, GAW-WDCA" />
  <attribute name="acknowledgement" type="double" />
  <attribute name="doi" value="https://doi.org/10.48597/KNZ4-G5QZ" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Roy Harrison, particle_number_size_distribution - smps at Harwell, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/KNZ4-G5QZ" />
  <attribute name="summary" value="Ground based in situ observations of particle_number_size_distribution at Harwell (GB0036R) using smps. These measurements are gathered as a part of the following projects EUCAARI, EUSAAR, GAW-WDCA and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: particle_number_size_distribution in aerosol (number_concentration_of_positive_ions_in_dry_aerosol_particles_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="GB04L, Division of Environmental Health &amp; Risk Management, University of Birmingham, Edgbaston, Birmingham B15 2 TT, United Kingdom" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2011-01-01T00:00:00 UTC" />
  <attribute name="date_metadata_modified" value="2011-01-01T00:00:00 UTC" />
  <attribute name="creator_name" value="Roy Harrison" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="" />
  <attribute name="creator_institution" value="" />
  <attribute name="contributor_name" value="David Beddows, Sonya Beccaceci" />
  <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 (51.573056 -1.316667 137.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="51.573056" />
  <attribute name="geospatial_lat_max" type="double" value="51.573056" />
  <attribute name="geospatial_lon_min" type="double" value="-1.316667" />
  <attribute name="geospatial_lon_max" type="double" value="-1.316667" />
  <attribute name="geospatial_vertical_min" type="double" value="137.0" />
  <attribute name="geospatial_vertical_max" type="double" value="137.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2007-05-01T00:00:00 UTC" />
  <attribute name="time_coverage_end" value="2008-01-01T00:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0000-08-00T00:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-00T01:00:00" />
  <attribute name="timezone" value="UTC" />
  <attribute name="ebas_data_definition" value="EBAS_1.1" />
  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Roy Harrison, particle_number_size_distribution - smps at Harwell, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/KNZ4-G5QZ" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="KNZ4-G5QZ.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/KNZ4-G5QZ" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/KNZ4-G5QZ" />
  <attribute name="ebas_file_creation" value="2023-12-08T14:04:57.253433 UTC" />
  <attribute name="ebas_export_state" value="2018-12-05T10:08:00.000000 UTC" />
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  <attribute name="ebas_startdate" value="20070501000000" />
  <attribute name="ebas_revision_date" value="20110101000000" />
  <attribute name="ebas_statistics" value="percentile:84.13" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="8mo" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_station_code" value="GB0036R" />
  <attribute name="ebas_platform_code" value="GB0036S" />
  <attribute name="ebas_station_name" value="Harwell" />
  <attribute name="ebas_station_latitude" value="51.573056" />
  <attribute name="ebas_station_longitude" value="-1.316667" />
  <attribute name="ebas_station_altitude" value="137.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_component" value="particle_number_size_distribution" />
  <attribute name="ebas_unit" value="1/cm3" />
  <attribute name="ebas_matrix" value="aerosol" />
  <attribute name="ebas_laboratory_code" value="GB04L" />
  <attribute name="ebas_instrument_type" value="smps" />
  <attribute name="ebas_instrument_name" value="HA4_SMPS" />
  <attribute name="ebas_method_ref" value="GB04L_HA4_SMPS" />
  <attribute name="ebas_organization" value="GB04L, &quot;Division of Environmental Health &amp; Risk Management, University of Birmingham&quot;, , , &quot;Edgbaston, Birmingham B15 2 TT, United Kingdom&quot;, , , , " />
  <attribute name="ebas_framework_acronym" value="EUCAARI, EUSAAR, GAW-WDCA" />
  <attribute name="ebas_framework_name" value=", European Supersites for Atmospheric Aerosol Research, World Data Centre for Aerosols" />
  <attribute name="ebas_framework_description" value=", Integration of measurements of atmospheric aerosol properties performed in a distributed network of 20 high quality European ground-based stations in support of policy issues on air quality, long-range transport of pollutants and climate change., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
  <attribute name="ebas_framework_contact_name" value="Ann Mari Fjæraa, Ann Mari Fjaeraa, Markus Fiebig" />
  <attribute name="ebas_framework_contact_email" value=", amf@nilu.no, Markus.Fiebig@nilu.no" />
  <attribute name="ebas_originator" value="Harrison, Roy, , , , , , , , , " />
  <attribute name="ebas_submitter" value="Beccaceci, Sonya, , , , , , , , , " />
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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="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, particle_number_size_distribution - smps at Harwell, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/KNZ4-G5QZ&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;KNZ4-G5QZ.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/KNZ4-G5QZ&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/KNZ4-G5QZ&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-08T14:04:57.253433 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2018-12-05T10:08:00.000000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20070501000000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20110101000000&quot;,&#xA;    &quot;Statistics&quot;: &quot;percentile:84.13&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;8mo&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1h&quot;,&#xA;    &quot;Station code&quot;: &quot;GB0036R&quot;,&#xA;    &quot;Platform code&quot;: &quot;GB0036S&quot;,&#xA;    &quot;Station name&quot;: &quot;Harwell&quot;,&#xA;    &quot;Station latitude&quot;: &quot;51.573056&quot;,&#xA;    &quot;Station longitude&quot;: &quot;-1.316667&quot;,&#xA;    &quot;Station altitude&quot;: &quot;137.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Component&quot;: &quot;particle_number_size_distribution&quot;,&#xA;    &quot;Unit&quot;: &quot;1/cm3&quot;,&#xA;    &quot;Matrix&quot;: &quot;aerosol&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;GB04L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;smps&quot;,&#xA;    &quot;Instrument name&quot;: &quot;HA4_SMPS&quot;,&#xA;    &quot;Method ref&quot;: &quot;GB04L_HA4_SMPS&quot;,&#xA;    &quot;Organization&quot;: &quot;GB04L, \&quot;Division of Environmental Health &amp; Risk Management, University of Birmingham\&quot;, , , \&quot;Edgbaston, Birmingham B15 2 TT, United Kingdom\&quot;, , , , &quot;,&#xA;    &quot;Framework acronym&quot;: &quot;EUCAARI, EUSAAR, GAW-WDCA&quot;,&#xA;    &quot;Framework name&quot;: &quot;, European Supersites for Atmospheric Aerosol Research, World Data Centre for Aerosols&quot;,&#xA;    &quot;Framework description&quot;: &quot;, Integration of measurements of atmospheric aerosol properties performed in a distributed network of 20 high quality European ground-based stations in support of policy issues on air quality, long-range transport of pollutants and climate change., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;,&#xA;    &quot;Framework contact name&quot;: &quot;Ann Mari Fjæraa, Ann Mari Fjaeraa, Markus Fiebig&quot;,&#xA;    &quot;Framework contact email&quot;: &quot;, amf@nilu.no, Markus.Fiebig@nilu.no&quot;,&#xA;    &quot;Originator&quot;: &quot;Harrison, Roy, , , , , , , , , &quot;,&#xA;    &quot;Submitter&quot;: &quot;Beccaceci, Sonya, , , , , , , , , &quot;&#xA;}" />
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  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
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  <dimension name="time" length="5879" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <dimension name="D" length="1" />
  <dimension name="particle_number_size_distribution_qc_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2007-05-01T00:30:00Z" />
    <attribute name="time_coverage_end" value="2007-12-31T23:30:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="3600.0" />
    <attribute name="time_coverage_duration" value="P0Y0M244DT23H0M0.000S" />
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  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-18" />
    <attribute name="nciso_version" value="2.4.8" />
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    <attribute name="long_name" value="time bounds for measurement" />
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    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
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    <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="20110101000000" />
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    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_station_latitude" value="51.573056" />
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