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  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Particle_number_size_distribution at Waldhof" />
  <attribute name="summary" value="Particle_number_size_distribution at Waldhof. These measurements are gathered as a part of the following projects ACTRIS, GAW-WDCA, GUAN and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ['pressure in instrument', 'relative_humidity in instrument (relative_humidity)', 'temperature in instrument', 'particle_number_size_distribution in pm10']" />
  <attribute name="keywords" value="Waldhof DE0002R particle_number_size_distribution pm10 ACTRIS GAW-WDCA GUAN relative_humidity" />
  <attribute name="id" value="BGT2-7T96.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, GAW-WDCA, GUAN" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/BGT2-7T96" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Schwerin, A., Wiedensohler, A., Birmili, W., Tuch, T., ACTRIS, GAW-WDCA, GUAN, 2024, Particle_number_size_distribution at Waldhof, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/BGT2-7T96" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="DE08L &quot;Leibniz Institute for Tropospheric Research&quot; TROPOS &quot;Permoserstrasse 15&quot; 04318 Leipzig Germany" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2024-01-03T09:52:33.761756Z" />
  <attribute name="date_metadata_modified" value="2024-01-03T09:52:33Z" />
  <attribute name="creator_name" value="Andreas Schwerin, Alfred Wiedensohler, Wolfram Birmili, Thomas Tuch" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="andreas.schwerin@uba.de, ali@tropos.de, , birmili@tropos.de" />
  <attribute name="creator_institution" value="&quot;Federal Environment Agency, UBA&quot;, &quot;Leibniz Institute for Tropospheric Research, Experimental Aerosol and Cloud Microphysics, TROPOS&quot;, , &quot;Leibniz Institute for Tropospheric Research, TROPOS&quot;" />
  <attribute name="contributor_name" value="Andre Sonntag, Thomas Tuch" />
  <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="MULTIPOINT Z ((10.77 52.8 74), (10.759444 52.802222 74))" />
  <attribute name="geospatial_lat_min" type="double" value="52.8" />
  <attribute name="geospatial_lat_max" type="double" value="52.802222" />
  <attribute name="geospatial_lon_min" type="double" value="10.759444" />
  <attribute name="geospatial_lon_max" type="double" value="10.77" />
  <attribute name="geospatial_vertical_min" type="double" value="74.0" />
  <attribute name="geospatial_vertical_max" type="double" value="74.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2014-01-01T00:00:00Z" />
  <attribute name="time_coverage_end" value="2023-01-02T00:00:00Z" />
  <attribute name="time_coverage_duration" value="P0009-00-01T00:00:00" />
  <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="Schwerin, A., Wiedensohler, A., Birmili, W., Tuch, T., ACTRIS, GAW-WDCA, GUAN, 2024, Particle_number_size_distribution at Waldhof, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/BGT2-7T96" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="BGT2-7T96.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/BGT2-7T96" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/BGT2-7T96" />
  <attribute name="ebas_file_creation" value="2026-06-11T00:58:45.299325Z" />
  <attribute name="ebas_export_state" value="2024-01-03T09:52:33.761756Z" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="2014-01-01T00:00:00.000000Z" />
  <attribute name="ebas_revision_date" value="2024-01-03T09:52:33.761756Z" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="9y" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_sample_duration" value="1h" />
  <attribute name="ebas_station_code" value="DE0002R" />
  <attribute name="ebas_platform_code" value="DE0002S" />
  <attribute name="ebas_station_name" value="Waldhof" />
  <attribute name="ebas_station_latitude" type="double" value="52.802222" />
  <attribute name="ebas_station_longitude" type="double" value="10.759444" />
  <attribute name="ebas_station_altitude" value="74.0 m" />
  <attribute name="ebas_measurement_latitude" type="double" value="52.8" />
  <attribute name="ebas_measurement_longitude" type="double" value="10.77" />
  <attribute name="ebas_measurement_altitude" value="74.0 m" />
  <attribute name="ebas_measurement_height" value="4.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_laboratory_code" value="DE08L" />
  <attribute name="ebas_instrument_type" value="smps" />
  <attribute name="ebas_instrument_name" value="TROPS_SMPS_UBA_WALDHOF" />
  <attribute name="ebas_instrument_manufacturer" value="TROPOS" />
  <attribute name="ebas_instrument_model" value="TROPOS-SMPS" />
  <attribute name="ebas_instrument_serial_number" value="SMPS-Waldhof" />
  <attribute name="ebas_method_ref" value="DE08L_TROPOS_CL_SMPS" />
  <attribute name="ebas_standard_method" value="SOP=Wiedensohler2012" />
  <attribute name="ebas_inlet_type" value="Impactor--direct" />
  <attribute name="ebas_inlet_description" value="PM10 at ambient humidity inlet, flow 16.67 l/min" />
  <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
  <attribute name="ebas_humidity_temperaure_control_description" value="sample dried to below 40% RH with nafion dryer (1/4&quot; in diameter)" />
  <attribute name="ebas_volume_std_temperature" value="273.15 K" />
  <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
  <attribute name="ebas_measurement_uncertainty_expl" value="uncertainty range between instruments in intercomparison by Wiedensohler et al. 2012. (AMT)" />
  <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
  <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
  <attribute name="ebas_organization" value="DE08L, Leibniz Institute for Tropospheric Research, TROPOS, , Permoserstrasse 15, , 04318, Leipzig, Germany" />
  <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA, GUAN" />
  <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols, German Ultrafine Aerosol Networ" />
  <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, &quot;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;, &quot;GUAN is a joint observation network, which aims to improve our understanding of atmospheric aerosol particles with regard to human particle exposure and aerosol climate effects.&quot;" />
  <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig, Ann Mari Fjaeraa" />
  <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no, amf@nilu.no" />
  <attribute name="ebas_originator" value="&quot;Schwerin, Andreas, andreas.schwerin@uba.de, Federal Environment Agency, UBA, , Waldhof 2, , 29394, Langenbrügge, Germany&quot;, &quot;Wiedensohler, Alfred, ali@tropos.de, Leibniz Institute for Tropospheric Research, TROPOS, Experimental Aerosol and Cloud Microphysics, Permoserstr.15, , 04318, Leipzig, Germany&quot;, &quot;Birmili, Wolfram, , , , , , , , , &quot;, &quot;Tuch, Thomas, birmili@tropos.de, Leibniz Institute for Tropospheric Research, TROPOS, , Permoserstrasse 15, , 04318, Leipzig, Germany&quot;" />
  <attribute name="ebas_submitter" value="&quot;Sonntag, Andre, , , , , , , , , &quot;, &quot;Tuch, Thomas, tuch@tropos.de, Leibniz Institute for Tropospheric Research, TROPOS, Experimental Aerosol and Cloud Microphysics, Permoserstr.15, , 04318, Leipzig, Germany&quot;" />
  <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, GAW-WDCA, GUAN. Request acknowledgement details from data originator" />
  <attribute name="ebas_comment" value="None" />
  <attribute name="_NCProperties" value="version=2,netcdf=4.9.3,hdf5=1.14.6" />
  <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="61885" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="9" />
  <dimension name="d_Location" length="1" />
  <dimension name="qc_pressure_flags" length="2" />
  <dimension name="qc_relative_humidity_flags" length="2" />
  <dimension name="qc_temperature_flags" length="2" />
  <dimension name="d_D" length="40" />
  <dimension name="qc_particle_number_size_distribution_amean_flags" length="2" />
  <dimension name="qc_particle_number_size_distribution_prec1587_flags" length="2" />
  <dimension name="qc_particle_number_size_distribution_perc8413_flags" length="2" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2014-01-01T00:30:00Z" />
    <attribute name="time_coverage_end" value="2023-01-01T23:30:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="4590.0" />
    <attribute name="time_coverage_duration" value="P0Y0M3287DT23H0M0.000S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-07-07" />
    <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="v_pressure" shape="d_Location time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="hPa" />
    <attribute name="ancillary_variables" value="qc_pressure meta_pressure" />
    <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="2024-01-03T09:52:33.761756Z" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="DE0002R" />
    <attribute name="ebas_platform_code" value="DE0002S" />
    <attribute name="ebas_station_name" value="Waldhof" />
    <attribute name="ebas_station_latitude" type="double" value="52.802222" />
    <attribute name="ebas_station_longitude" type="double" value="10.759444" />
    <attribute name="ebas_station_altitude" value="74.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="52.8" />
    <attribute name="ebas_measurement_longitude" type="double" value="10.77" />
    <attribute name="ebas_measurement_altitude" value="74.0 m" />
    <attribute name="ebas_measurement_height" value="4.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="pressure" />
    <attribute name="ebas_unit" value="hPa" />
    <attribute name="ebas_matrix" value="instrument" />
    <attribute name="ebas_laboratory_code" value="DE08L" />
    <attribute name="ebas_instrument_type" value="smps" />
    <attribute name="ebas_instrument_name" value="TROPS_SMPS_UBA_WALDHOF" />
    <attribute name="ebas_instrument_manufacturer" value="TROPOS" />
    <attribute name="ebas_instrument_model" value="TROPOS-SMPS" />
    <attribute name="ebas_instrument_serial_number" value="SMPS-Waldhof" />
    <attribute name="ebas_method_ref" value="DE08L_TROPOS_CL_SMPS" />
    <attribute name="ebas_standard_method" value="SOP=Wiedensohler2012" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM10 at ambient humidity inlet, flow 16.67 l/min" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_humidity_temperaure_control_description" value="sample dried to below 40% RH with nafion dryer (1/4&quot; in diameter)" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_measurement_uncertainty_expl" value="uncertainty range between instruments in intercomparison by Wiedensohler et al. 2012. (AMT)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="DE08L, Leibniz Institute for Tropospheric Research, TROPOS, , Permoserstrasse 15, , 04318, Leipzig, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA, GUAN" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols, German Ultrafine Aerosol Networ" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, &quot;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;, &quot;GUAN is a joint observation network, which aims to improve our understanding of atmospheric aerosol particles with regard to human particle exposure and aerosol climate effects.&quot;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig, Ann Mari Fjaeraa" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no, amf@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Schwerin, Andreas, andreas.schwerin@uba.de, Federal Environment Agency, UBA, , Waldhof 2, , 29394, Langenbrügge, Germany&quot;, &quot;Wiedensohler, Alfred, ali@tropos.de, Leibniz Institute for Tropospheric Research, TROPOS, Experimental Aerosol and Cloud Microphysics, Permoserstr.15, , 04318, Leipzig, Germany&quot;, &quot;Birmili, Wolfram, , , , , , , , , &quot;, &quot;Tuch, Thomas, birmili@tropos.de, Leibniz Institute for Tropospheric Research, TROPOS, , Permoserstrasse 15, , 04318, Leipzig, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Sonntag, Andre, , , , , , , , , &quot;, &quot;Tuch, Thomas, tuch@tropos.de, Leibniz Institute for Tropospheric Research, TROPOS, Experimental Aerosol and Cloud Microphysics, Permoserstr.15, , 04318, Leipzig, Germany&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, GAW-WDCA, GUAN. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="None" />
  </variable>
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
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  </variable>
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_relative_humidity" shape="d_Location time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="relative_humidity" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="%" />
    <attribute name="ancillary_variables" value="qc_relative_humidity meta_relative_humidity" />
    <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="2024-01-03T09:52:33.761756Z" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="DE0002R" />
    <attribute name="ebas_platform_code" value="DE0002S" />
    <attribute name="ebas_station_name" value="Waldhof" />
    <attribute name="ebas_station_latitude" type="double" value="52.802222" />
    <attribute name="ebas_station_longitude" type="double" value="10.759444" />
    <attribute name="ebas_station_altitude" value="74.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="52.8" />
    <attribute name="ebas_measurement_longitude" type="double" value="10.77" />
    <attribute name="ebas_measurement_altitude" value="74.0 m" />
    <attribute name="ebas_measurement_height" value="4.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="relative_humidity" />
    <attribute name="ebas_unit" value="%" />
    <attribute name="ebas_matrix" value="instrument" />
    <attribute name="ebas_laboratory_code" value="DE08L" />
    <attribute name="ebas_instrument_type" value="smps" />
    <attribute name="ebas_instrument_name" value="TROPS_SMPS_UBA_WALDHOF" />
    <attribute name="ebas_instrument_manufacturer" value="TROPOS" />
    <attribute name="ebas_instrument_model" value="TROPOS-SMPS" />
    <attribute name="ebas_instrument_serial_number" value="SMPS-Waldhof" />
    <attribute name="ebas_method_ref" value="DE08L_TROPOS_CL_SMPS" />
    <attribute name="ebas_standard_method" value="SOP=Wiedensohler2012" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM10 at ambient humidity inlet, flow 16.67 l/min" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_humidity_temperaure_control_description" value="sample dried to below 40% RH with nafion dryer (1/4&quot; in diameter)" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_measurement_uncertainty_expl" value="uncertainty range between instruments in intercomparison by Wiedensohler et al. 2012. (AMT)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="DE08L, Leibniz Institute for Tropospheric Research, TROPOS, , Permoserstrasse 15, , 04318, Leipzig, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA, GUAN" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols, German Ultrafine Aerosol Networ" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, &quot;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;, &quot;GUAN is a joint observation network, which aims to improve our understanding of atmospheric aerosol particles with regard to human particle exposure and aerosol climate effects.&quot;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig, Ann Mari Fjaeraa" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no, amf@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Schwerin, Andreas, andreas.schwerin@uba.de, Federal Environment Agency, UBA, , Waldhof 2, , 29394, Langenbrügge, Germany&quot;, &quot;Wiedensohler, Alfred, ali@tropos.de, Leibniz Institute for Tropospheric Research, TROPOS, Experimental Aerosol and Cloud Microphysics, Permoserstr.15, , 04318, Leipzig, Germany&quot;, &quot;Birmili, Wolfram, , , , , , , , , &quot;, &quot;Tuch, Thomas, birmili@tropos.de, Leibniz Institute for Tropospheric Research, TROPOS, , Permoserstrasse 15, , 04318, Leipzig, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Sonntag, Andre, , , , , , , , , &quot;, &quot;Tuch, Thomas, tuch@tropos.de, Leibniz Institute for Tropospheric Research, TROPOS, Experimental Aerosol and Cloud Microphysics, Permoserstr.15, , 04318, Leipzig, Germany&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, GAW-WDCA, GUAN. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="None" />
  </variable>
  <variable name="qc_relative_humidity" shape="d_Location qc_relative_humidity_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>
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="K" />
    <attribute name="ancillary_variables" value="qc_temperature meta_temperature" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2024-01-03T09:52:33.761756Z" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="DE0002R" />
    <attribute name="ebas_platform_code" value="DE0002S" />
    <attribute name="ebas_station_name" value="Waldhof" />
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    <attribute name="ebas_measurement_altitude" value="74.0 m" />
    <attribute name="ebas_measurement_height" value="4.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="temperature" />
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    <attribute name="ebas_matrix" value="instrument" />
    <attribute name="ebas_laboratory_code" value="DE08L" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="DE08L, Leibniz Institute for Tropospheric Research, TROPOS, , Permoserstrasse 15, , 04318, Leipzig, Germany" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig, Ann Mari Fjaeraa" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no, amf@nilu.no" />
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    <attribute name="ebas_comment" value="None" />
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    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="1/cm3" />
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    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_station_name" value="Waldhof" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="particle_number_size_distribution" />
    <attribute name="ebas_unit" value="1/cm3" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, GAW-WDCA, GUAN. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="None" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="1/cm3" />
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    <attribute name="ebas_statistics" value="percentile:84.13" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
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    <attribute name="ebas_component" value="particle_number_size_distribution" />
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    <attribute name="ebas_matrix" value="pm10" />
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    <attribute name="ebas_inlet_description" value="PM10 at ambient humidity inlet, flow 16.67 l/min" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_humidity_temperaure_control_description" value="sample dried to below 40% RH with nafion dryer (1/4&quot; in diameter)" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.0 1/cm3" />
    <attribute name="ebas_detection_limit_expl" value="Determined only by instrument counting statistics, no detection limit flag used" />
    <attribute name="ebas_measurement_uncertainty" value="10.0 %" />
    <attribute name="ebas_measurement_uncertainty_expl" value="uncertainty range between instruments in intercomparison by Wiedensohler et al. 2012. (AMT)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="DE08L, Leibniz Institute for Tropospheric Research, TROPOS, , Permoserstrasse 15, , 04318, Leipzig, Germany" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA, GUAN" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols, German Ultrafine Aerosol Networ" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, &quot;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;, &quot;GUAN is a joint observation network, which aims to improve our understanding of atmospheric aerosol particles with regard to human particle exposure and aerosol climate effects.&quot;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig, Ann Mari Fjaeraa" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no, amf@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Schwerin, Andreas, andreas.schwerin@uba.de, Federal Environment Agency, UBA, , Waldhof 2, , 29394, Langenbrügge, Germany&quot;, &quot;Wiedensohler, Alfred, ali@tropos.de, Leibniz Institute for Tropospheric Research, TROPOS, Experimental Aerosol and Cloud Microphysics, Permoserstr.15, , 04318, Leipzig, Germany&quot;, &quot;Birmili, Wolfram, , , , , , , , , &quot;, &quot;Tuch, Thomas, birmili@tropos.de, Leibniz Institute for Tropospheric Research, TROPOS, , Permoserstrasse 15, , 04318, Leipzig, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Sonntag, Andre, , , , , , , , , &quot;, &quot;Tuch, Thomas, tuch@tropos.de, Leibniz Institute for Tropospheric Research, TROPOS, Experimental Aerosol and Cloud Microphysics, Permoserstr.15, , 04318, Leipzig, Germany&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, GAW-WDCA, GUAN. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="None" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlenumbersizedistribution" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle number size distribution" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM10" />
    <attribute name="actris_matrix_preferred_term" value="PM10" />
    <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/mobilityparticlesizespectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="mobility particle size spectrometer" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCA, https://vocabulary.actris.nilu.no/actris_controlled_lists/GUAN" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCA, GUAN" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_particle_number_size_distribution_perc8413" shape="d_D qc_particle_number_size_distribution_perc8413_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_particle_number_size_distribution_perc8413" shape="d_D 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>
  <variable name="d_Location" shape="d_Location" type="String" />
  <variable name="d_D" shape="d_D" type="double" />
</netcdf>
