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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 Leipzig-Mitte" />
  <attribute name="summary" value="Particle_number_size_distribution at Leipzig-Mitte. These measurements are gathered as a part of the following projects 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="Leipzig-Mitte DE0067K particle_number_size_distribution pm10 GUAN relative_humidity" />
  <attribute name="id" value="H8EW-9XJJ.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="GUAN" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/H8EW-9XJJ" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Birmili, W., Wiedensohler, A., GUAN, 2014, Particle_number_size_distribution at Leipzig-Mitte, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/H8EW-9XJJ" />
  <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="2014-08-22T07:43:12.747000Z" />
  <attribute name="date_metadata_modified" value="2014-08-22T07:43:12Z" />
  <attribute name="creator_name" value="Wolfram Birmili, Alfred Wiedensohler" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value=", ali@tropos.de" />
  <attribute name="creator_institution" value=", &quot;Leibniz Institute for Tropospheric Research, Experimental Aerosol and Cloud Microphysics, TROPOS&quot;" />
  <attribute name="contributor_name" value="Andre Sonntag" />
  <attribute name="contributor_role" value="data submitter" />
  <attribute name="publisher_type" value="institution" />
  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_institution" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_email" value="ebas@nilu.no" />
  <attribute name="publisher_url" value="https://www.nilu.no/" />
  <attribute name="geospatial_bounds" value="MULTIPOINT Z ((12.38 51.34 111), (12.377222 51.344167 111))" />
  <attribute name="geospatial_lat_min" type="double" value="51.34" />
  <attribute name="geospatial_lat_max" type="double" value="51.344167" />
  <attribute name="geospatial_lon_min" type="double" value="12.377222" />
  <attribute name="geospatial_lon_max" type="double" value="12.38" />
  <attribute name="geospatial_vertical_min" type="double" value="111.0" />
  <attribute name="geospatial_vertical_max" type="double" value="111.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2011-01-01T00:00:00Z" />
  <attribute name="time_coverage_end" value="2014-01-01T00:00:00Z" />
  <attribute name="time_coverage_duration" value="P0003-00-00T00:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-00T01:00:00" />
  <attribute name="timezone" value="UTC" />
  <attribute name="ebas_data_definition" value="EBAS_1.1" />
  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Birmili, W., Wiedensohler, A., GUAN, 2014, Particle_number_size_distribution at Leipzig-Mitte, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/H8EW-9XJJ" />
  <attribute name="ebas_set_type_code" value="TU" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="H8EW-9XJJ.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/H8EW-9XJJ" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/H8EW-9XJJ" />
  <attribute name="ebas_file_creation" value="2026-05-17T06:36:32.534798Z" />
  <attribute name="ebas_export_state" value="2014-08-22T07:43:12.747000Z" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="2011-01-01T00:00:00.000000Z" />
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  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="initial revision, TDMPS_control_lev2 v.0.0_1" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="3y" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_sample_duration" value="1h" />
  <attribute name="ebas_orig_time_res" value="10mn" />
  <attribute name="ebas_station_code" value="DE0067K" />
  <attribute name="ebas_platform_code" value="DE0067S" />
  <attribute name="ebas_station_name" value="Leipzig-Mitte" />
  <attribute name="ebas_station_latitude" type="double" value="51.344167" />
  <attribute name="ebas_station_longitude" type="double" value="12.377222" />
  <attribute name="ebas_station_altitude" value="111.0 m" />
  <attribute name="ebas_measurement_latitude" type="double" value="51.34" />
  <attribute name="ebas_measurement_longitude" type="double" value="12.38" />
  <attribute name="ebas_measurement_altitude" value="111.0 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="tdmps" />
  <attribute name="ebas_instrument_name" value="TDMPS_TROPOS_LE-Mitte" />
  <attribute name="ebas_method_ref" value="DE08L_TROPOS_CL_TDMPS" />
  <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="Diffusion dryer" />
  <attribute name="ebas_humidity_temperaure_control_description" value="sample dried to below 40% RH with regenerative dryer" />
  <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="GUAN" />
  <attribute name="ebas_framework_name" value="German Ultrafine Aerosol Networ" />
  <attribute name="ebas_framework_description" value="&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="Ann Mari Fjaeraa" />
  <attribute name="ebas_framework_contact_email" value="amf@nilu.no" />
  <attribute name="ebas_originator" value="&quot;Birmili, Wolfram, , , , , , , , , &quot;, &quot;Wiedensohler, Alfred, ali@tropos.de, Leibniz Institute for Tropospheric Research, TROPOS, Experimental Aerosol and Cloud Microphysics, Permoserstr.15, , 04318, Leipzig, Germany&quot;" />
  <attribute name="ebas_submitter" value="&quot;Sonntag, Andre, , , , , , , , , &quot;" />
  <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: GUAN. Request acknowledgement details from data originator" />
  <attribute name="ebas_comment" value="None" />
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  <attribute name="Metadata_Conventions" value="Unidata Dataset Discovery v1.0" />
  <attribute name="geospatial_lat_units" value="degrees_north" />
  <attribute name="geospatial_lon_units" value="degrees_east" />
  <attribute name="standard_name_vocabulary" value="CF-1.7, ACDD-1.3" />
  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
  <attribute name="_CoordSysBuilder" value="ucar.nc2.internal.dataset.conv.CF1Convention" />
  <dimension name="time" length="26304" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="3" />
  <dimension name="d_Location" length="1" />
  <dimension name="qc_pressure_flags" length="1" />
  <dimension name="qc_relative_humidity_flags" length="1" />
  <dimension name="qc_temperature_flags" length="1" />
  <dimension name="d_D" length="46" />
  <dimension name="qc_particle_number_size_distribution_amean_flags" length="1" />
  <dimension name="qc_particle_number_size_distribution_prec1587_flags" length="1" />
  <dimension name="qc_particle_number_size_distribution_perc8413_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2011-01-01T00:30:00Z" />
    <attribute name="time_coverage_end" value="2013-12-31T23:30:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="3600.0" />
    <attribute name="time_coverage_duration" value="P0Y0M1095DT23H0M0.000S" />
  </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="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="2014-08-22T07:43:12.747000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, TDMPS_control_lev2 v.0.0_1" />
    <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="10mn" />
    <attribute name="ebas_station_code" value="DE0067K" />
    <attribute name="ebas_platform_code" value="DE0067S" />
    <attribute name="ebas_station_name" value="Leipzig-Mitte" />
    <attribute name="ebas_station_latitude" type="double" value="51.344167" />
    <attribute name="ebas_station_longitude" type="double" value="12.377222" />
    <attribute name="ebas_station_altitude" value="111.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="51.34" />
    <attribute name="ebas_measurement_longitude" type="double" value="12.38" />
    <attribute name="ebas_measurement_altitude" value="111.0 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="tdmps" />
    <attribute name="ebas_instrument_name" value="TDMPS_TROPOS_LE-Mitte" />
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    <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="Diffusion dryer" />
    <attribute name="ebas_humidity_temperaure_control_description" value="sample dried to below 40% RH with regenerative dryer" />
    <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="GUAN" />
    <attribute name="ebas_framework_name" value="German Ultrafine Aerosol Networ" />
    <attribute name="ebas_framework_description" value="&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="Ann Mari Fjaeraa" />
    <attribute name="ebas_framework_contact_email" value="amf@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Birmili, Wolfram, , , , , , , , , &quot;, &quot;Wiedensohler, Alfred, ali@tropos.de, Leibniz Institute for Tropospheric Research, TROPOS, Experimental Aerosol and Cloud Microphysics, Permoserstr.15, , 04318, Leipzig, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Sonntag, Andre, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: GUAN. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="None" />
  </variable>
  <variable name="qc_pressure" shape="d_Location qc_pressure_flags time" type="int">
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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="meta_pressure" shape="d_Location metadata_time" type="String">
    <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="2014-08-22T07:43:12.747000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, TDMPS_control_lev2 v.0.0_1" />
    <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="10mn" />
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    <attribute name="ebas_platform_code" value="DE0067S" />
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    <attribute name="ebas_station_latitude" type="double" value="51.344167" />
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    <attribute name="ebas_measurement_altitude" value="111.0 m" />
    <attribute name="ebas_measurement_height" value="4.0 m" />
    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="ebas_matrix" value="instrument" />
    <attribute name="ebas_laboratory_code" value="DE08L" />
    <attribute name="ebas_instrument_type" value="tdmps" />
    <attribute name="ebas_instrument_name" value="TDMPS_TROPOS_LE-Mitte" />
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    <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="Diffusion dryer" />
    <attribute name="ebas_humidity_temperaure_control_description" value="sample dried to below 40% RH with regenerative dryer" />
    <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="GUAN" />
    <attribute name="ebas_framework_name" value="German Ultrafine Aerosol Networ" />
    <attribute name="ebas_framework_description" value="&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="Ann Mari Fjaeraa" />
    <attribute name="ebas_framework_contact_email" value="amf@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Birmili, Wolfram, , , , , , , , , &quot;, &quot;Wiedensohler, Alfred, ali@tropos.de, Leibniz Institute for Tropospheric Research, TROPOS, Experimental Aerosol and Cloud Microphysics, Permoserstr.15, , 04318, Leipzig, Germany&quot;" />
    <attribute name="ebas_submitter" value="&quot;Sonntag, Andre, , , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: GUAN. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="None" />
  </variable>
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    <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_relative_humidity" shape="d_Location metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_temperature" 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="K" />
    <attribute name="ancillary_variables" value="qc_temperature meta_temperature" />
    <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="2014-08-22T07:43:12.747000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, TDMPS_control_lev2 v.0.0_1" />
    <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="10mn" />
    <attribute name="ebas_station_code" value="DE0067K" />
    <attribute name="ebas_platform_code" value="DE0067S" />
    <attribute name="ebas_station_name" value="Leipzig-Mitte" />
    <attribute name="ebas_station_latitude" type="double" value="51.344167" />
    <attribute name="ebas_station_longitude" type="double" value="12.377222" />
    <attribute name="ebas_station_altitude" value="111.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="51.34" />
    <attribute name="ebas_measurement_longitude" type="double" value="12.38" />
    <attribute name="ebas_measurement_altitude" value="111.0 m" />
    <attribute name="ebas_measurement_height" value="4.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="temperature" />
    <attribute name="ebas_unit" value="K" />
    <attribute name="ebas_matrix" value="instrument" />
    <attribute name="ebas_laboratory_code" value="DE08L" />
    <attribute name="ebas_instrument_type" value="tdmps" />
    <attribute name="ebas_instrument_name" value="TDMPS_TROPOS_LE-Mitte" />
    <attribute name="ebas_method_ref" value="DE08L_TROPOS_CL_TDMPS" />
    <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="Diffusion dryer" />
    <attribute name="ebas_humidity_temperaure_control_description" value="sample dried to below 40% RH with regenerative dryer" />
    <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" />
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    <attribute name="ebas_framework_name" value="German Ultrafine Aerosol Networ" />
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    <attribute name="ebas_comment" value="None" />
  </variable>
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    <attribute name="ebas_version_description" value="initial revision, TDMPS_control_lev2 v.0.0_1" />
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    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="long_name" value="time of measurement" />
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    <attribute name="units" value="days since 1900-01-01T00:00:00Z" />
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    <attribute name="_CoordinateAxisType" value="Time" />
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    <attribute name="units" value="days since 1900-01-01T00:00:00Z" />
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    <attribute name="calendar" value="standard" />
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</netcdf>
