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<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="Particle_number_size_distribution at Trollhaugen" />
  <attribute name="summary" value="Particle_number_size_distribution at Trollhaugen. These measurements are gathered as a part of the following projects ACTRIS, EMEP, GAW-WDCA, NILU 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="Trollhaugen NO0059G particle_number_size_distribution pm10 ACTRIS EMEP GAW-WDCA NILU relative_humidity" />
  <attribute name="id" value="25VG-MH5N.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, EMEP, GAW-WDCA, NILU" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/25VG-MH5N" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Fiebig, M., Lunder, C., Duflot, V., ACTRIS, EMEP, GAW-WDCA, NILU, 2026, Particle_number_size_distribution at Trollhaugen, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/25VG-MH5N" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="NO01L &quot;Norwegian Institute for Air Research&quot; NILU &quot;Instituttveien 18&quot; 2007 Kjeller Norway" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2026-04-20T10:58:32.392126Z" />
  <attribute name="date_metadata_modified" value="2026-04-20T10:58:32Z" />
  <attribute name="creator_name" value="Markus Fiebig, Chris Lunder, Valentin Duflot" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="Markus.Fiebig@nilu.no, crl@nilu.no, vduf@nilu.no" />
  <attribute name="creator_institution" value="&quot;Norwegian Institute for Air Research, Atmosphere and Climate Department, NILU&quot;, &quot;Norwegian Institute for Air Research, Atmosphere and Climate Department, NILU&quot;, &quot;Norwegian Institute for Air Research, Atmosphere and Climate Department, NILU&quot;" />
  <attribute name="contributor_name" value="Markus Fiebig, Chris Lunder, Valentin Duflot" />
  <attribute name="contributor_role" value="data submitter, 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 ((2.533333 72.016667 1309), (2.5351 -72.0117 1309))" />
  <attribute name="geospatial_lat_min" type="double" value="-72.0117" />
  <attribute name="geospatial_lat_max" type="double" value="72.016667" />
  <attribute name="geospatial_lon_min" type="double" value="2.533333" />
  <attribute name="geospatial_lon_max" type="double" value="2.5351" />
  <attribute name="geospatial_vertical_min" type="double" value="1309.0" />
  <attribute name="geospatial_vertical_max" type="double" value="1309.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2016-01-25T16:00:00Z" />
  <attribute name="time_coverage_end" value="2026-01-01T00:00:00Z" />
  <attribute name="time_coverage_duration" value="P0009-11-06T08:00:00" />
  <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="Fiebig, M., Lunder, C., Duflot, V., ACTRIS, EMEP, GAW-WDCA, NILU, 2026, Particle_number_size_distribution at Trollhaugen, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/25VG-MH5N" />
  <attribute name="ebas_set_type_code" value="TU" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="25VG-MH5N.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/25VG-MH5N" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/25VG-MH5N" />
  <attribute name="ebas_file_creation" value="2026-05-22T04:58:05.662918Z" />
  <attribute name="ebas_export_state" value="2026-04-20T10:58:32.392126Z" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="2016-01-25T16:00:00.000000Z" />
  <attribute name="ebas_revision_date" value="2026-04-20T10:58:32.392126Z" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="10y" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_sample_duration" value="1h" />
  <attribute name="ebas_orig_time_res" value="6mn" />
  <attribute name="ebas_station_code" value="NO0059G" />
  <attribute name="ebas_platform_code" value="NO0059S" />
  <attribute name="ebas_station_name" value="Trollhaugen" />
  <attribute name="ebas_station_wdca_id" value="GAWANO__TRL" />
  <attribute name="ebas_station_gaw_id" value="TRL" />
  <attribute name="ebas_station_gaw_name" value="Trollhaugen" />
  <attribute name="ebas_station_land_use" value="Snowfield" />
  <attribute name="ebas_station_setting" value="Polar" />
  <attribute name="ebas_station_gaw_type" value="R" />
  <attribute name="ebas_station_wmo_region" type="long" value="7" />
  <attribute name="ebas_station_latitude" type="double" value="-72.0117" />
  <attribute name="ebas_station_longitude" type="double" value="2.5351" />
  <attribute name="ebas_station_altitude" value="1553.0 m" />
  <attribute name="ebas_measurement_latitude" type="double" value="72.016667" />
  <attribute name="ebas_measurement_longitude" type="double" value="2.533333" />
  <attribute name="ebas_measurement_altitude" value="1309.0 m" />
  <attribute name="ebas_measurement_height" value="4.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_laboratory_code" value="NO01L" />
  <attribute name="ebas_instrument_type" value="dmps" />
  <attribute name="ebas_instrument_name" value="NILU_DMPSmodel2_TRL" />
  <attribute name="ebas_instrument_manufacturer" value="NILU" />
  <attribute name="ebas_instrument_model" value="DMPSmodel2" />
  <attribute name="ebas_instrument_serial_number" value="00001/3" />
  <attribute name="ebas_method_ref" value="NO01L_dmps_DMPS_TRL02" />
  <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" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_humidity_temperaure_control_description" value="sample heated to lab pressure" />
  <attribute name="ebas_volume_std_temperature" value="273.15 K" />
  <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
  <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="NO01L, Norwegian Institute for Air Research, NILU, , Instituttveien 18, , 2007, Kjeller, Norway" />
  <attribute name="ebas_framework_acronym" value="" />
  <attribute name="ebas_framework_name" value="" />
  <attribute name="ebas_framework_description" value="" />
  <attribute name="ebas_framework_contact_name" value="" />
  <attribute name="ebas_framework_contact_email" value="" />
  <attribute name="ebas_originator" value="&quot;Fiebig, Markus, Markus.Fiebig@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0002-3380-3470&quot;, &quot;Lunder, Chris, crl@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Duflot, Valentin, vduf@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2027, Kjeller, Norway&quot;" />
  <attribute name="ebas_submitter" value="&quot;Fiebig, Markus, Markus.Fiebig@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0002-3380-3470&quot;, &quot;Lunder, Chris, crl@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Duflot, Valentin, vduf@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2027, Kjeller, Norway&quot;" />
  <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="87080" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="10" />
  <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="25" />
  <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="2016-01-25T16:30:00Z" />
    <attribute name="time_coverage_end" value="2025-12-31T23:30:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="3600.0" />
    <attribute name="time_coverage_duration" value="P0Y0M3628DT7H0M0.000S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-06-05" />
    <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="2026-04-20T10:58:32.392126Z" />
    <attribute name="ebas_version" value="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="6mn" />
    <attribute name="ebas_station_code" value="NO0059G" />
    <attribute name="ebas_platform_code" value="NO0059S" />
    <attribute name="ebas_station_name" value="Trollhaugen" />
    <attribute name="ebas_station_wdca_id" value="GAWANO__TRL" />
    <attribute name="ebas_station_gaw_id" value="TRL" />
    <attribute name="ebas_station_gaw_name" value="Trollhaugen" />
    <attribute name="ebas_station_land_use" value="Snowfield" />
    <attribute name="ebas_station_setting" value="Polar" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="-72.0117" />
    <attribute name="ebas_station_longitude" type="double" value="2.5351" />
    <attribute name="ebas_station_altitude" value="1553.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="72.016667" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.533333" />
    <attribute name="ebas_measurement_altitude" value="1309.0 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="NO01L" />
    <attribute name="ebas_instrument_type" value="dmps" />
    <attribute name="ebas_instrument_name" value="NILU_DMPSmodel2_TRL" />
    <attribute name="ebas_instrument_manufacturer" value="NILU" />
    <attribute name="ebas_instrument_model" value="DMPSmodel2" />
    <attribute name="ebas_instrument_serial_number" value="00001/3" />
    <attribute name="ebas_method_ref" value="NO01L_dmps_DMPS_TRL02" />
    <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" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="sample heated to lab pressure" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <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="NO01L, Norwegian Institute for Air Research, NILU, , Instituttveien 18, , 2007, Kjeller, Norway" />
    <attribute name="ebas_framework_acronym" value="" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="" />
    <attribute name="ebas_framework_contact_email" value="" />
    <attribute name="ebas_originator" value="&quot;Fiebig, Markus, Markus.Fiebig@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0002-3380-3470&quot;, &quot;Lunder, Chris, crl@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Duflot, Valentin, vduf@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2027, Kjeller, Norway&quot;" />
    <attribute name="ebas_submitter" value="&quot;Fiebig, Markus, Markus.Fiebig@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0002-3380-3470&quot;, &quot;Lunder, Chris, crl@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Duflot, Valentin, vduf@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2027, Kjeller, Norway&quot;" />
    <attribute name="ebas_comment" value="None" />
  </variable>
  <variable name="qc_pressure" shape="d_Location qc_pressure_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_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="2026-04-20T10:58:32.392126Z" />
    <attribute name="ebas_version" value="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="6mn" />
    <attribute name="ebas_station_code" value="NO0059G" />
    <attribute name="ebas_platform_code" value="NO0059S" />
    <attribute name="ebas_station_name" value="Trollhaugen" />
    <attribute name="ebas_station_wdca_id" value="GAWANO__TRL" />
    <attribute name="ebas_station_gaw_id" value="TRL" />
    <attribute name="ebas_station_gaw_name" value="Trollhaugen" />
    <attribute name="ebas_station_land_use" value="Snowfield" />
    <attribute name="ebas_station_setting" value="Polar" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="-72.0117" />
    <attribute name="ebas_station_longitude" type="double" value="2.5351" />
    <attribute name="ebas_station_altitude" value="1553.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="72.016667" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.533333" />
    <attribute name="ebas_measurement_altitude" value="1309.0 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="NO01L" />
    <attribute name="ebas_instrument_type" value="dmps" />
    <attribute name="ebas_instrument_name" value="NILU_DMPSmodel2_TRL" />
    <attribute name="ebas_instrument_manufacturer" value="NILU" />
    <attribute name="ebas_instrument_model" value="DMPSmodel2" />
    <attribute name="ebas_instrument_serial_number" value="00001/3" />
    <attribute name="ebas_method_ref" value="NO01L_dmps_DMPS_TRL02" />
    <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" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="sample heated to lab pressure" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <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="NO01L, Norwegian Institute for Air Research, NILU, , Instituttveien 18, , 2007, Kjeller, Norway" />
    <attribute name="ebas_framework_acronym" value="" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="" />
    <attribute name="ebas_framework_contact_email" value="" />
    <attribute name="ebas_originator" value="&quot;Fiebig, Markus, Markus.Fiebig@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0002-3380-3470&quot;, &quot;Lunder, Chris, crl@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Duflot, Valentin, vduf@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2027, Kjeller, Norway&quot;" />
    <attribute name="ebas_submitter" value="&quot;Fiebig, Markus, Markus.Fiebig@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0002-3380-3470&quot;, &quot;Lunder, Chris, crl@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Duflot, Valentin, vduf@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2027, Kjeller, Norway&quot;" />
    <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>
  <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="2026-04-20T10:58:32.392126Z" />
    <attribute name="ebas_version" value="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="6mn" />
    <attribute name="ebas_station_code" value="NO0059G" />
    <attribute name="ebas_platform_code" value="NO0059S" />
    <attribute name="ebas_station_name" value="Trollhaugen" />
    <attribute name="ebas_station_wdca_id" value="GAWANO__TRL" />
    <attribute name="ebas_station_gaw_id" value="TRL" />
    <attribute name="ebas_station_gaw_name" value="Trollhaugen" />
    <attribute name="ebas_station_land_use" value="Snowfield" />
    <attribute name="ebas_station_setting" value="Polar" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="-72.0117" />
    <attribute name="ebas_station_longitude" type="double" value="2.5351" />
    <attribute name="ebas_station_altitude" value="1553.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="72.016667" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.533333" />
    <attribute name="ebas_measurement_altitude" value="1309.0 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="NO01L" />
    <attribute name="ebas_instrument_type" value="dmps" />
    <attribute name="ebas_instrument_name" value="NILU_DMPSmodel2_TRL" />
    <attribute name="ebas_instrument_manufacturer" value="NILU" />
    <attribute name="ebas_instrument_model" value="DMPSmodel2" />
    <attribute name="ebas_instrument_serial_number" value="00001/3" />
    <attribute name="ebas_method_ref" value="NO01L_dmps_DMPS_TRL02" />
    <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" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="sample heated to lab pressure" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <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="NO01L, Norwegian Institute for Air Research, NILU, , Instituttveien 18, , 2007, Kjeller, Norway" />
    <attribute name="ebas_framework_acronym" value="" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="" />
    <attribute name="ebas_framework_contact_email" value="" />
    <attribute name="ebas_originator" value="&quot;Fiebig, Markus, Markus.Fiebig@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0002-3380-3470&quot;, &quot;Lunder, Chris, crl@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Duflot, Valentin, vduf@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2027, Kjeller, Norway&quot;" />
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    <attribute name="ebas_comment" value="None" />
  </variable>
  <variable name="qc_temperature" shape="d_Location qc_temperature_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_temperature" shape="d_Location metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_particle_number_size_distribution_amean" shape="d_D time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="1/cm3" />
    <attribute name="ancillary_variables" value="qc_particle_number_size_distribution_amean meta_particle_number_size_distribution_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-04-20T10:58:32.392126Z" />
    <attribute name="ebas_version" value="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="6mn" />
    <attribute name="ebas_station_code" value="NO0059G" />
    <attribute name="ebas_platform_code" value="NO0059S" />
    <attribute name="ebas_station_name" value="Trollhaugen" />
    <attribute name="ebas_station_wdca_id" value="GAWANO__TRL" />
    <attribute name="ebas_station_gaw_id" value="TRL" />
    <attribute name="ebas_station_gaw_name" value="Trollhaugen" />
    <attribute name="ebas_station_land_use" value="Snowfield" />
    <attribute name="ebas_station_setting" value="Polar" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="-72.0117" />
    <attribute name="ebas_station_longitude" type="double" value="2.5351" />
    <attribute name="ebas_station_altitude" value="1553.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="72.016667" />
    <attribute name="ebas_measurement_longitude" type="double" value="2.533333" />
    <attribute name="ebas_measurement_altitude" value="1309.0 m" />
    <attribute name="ebas_measurement_height" value="4.0 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="pm10" />
    <attribute name="ebas_laboratory_code" value="NO01L" />
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    <attribute name="ebas_instrument_name" value="NILU_DMPSmodel2_TRL" />
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    <attribute name="ebas_instrument_serial_number" value="00001/3" />
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    <attribute name="ebas_inlet_description" value="PM10 at ambient humidity inlet" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="sample heated to lab pressure" />
    <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="0.006 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_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="NO01L, Norwegian Institute for Air Research, NILU, , Instituttveien 18, , 2007, Kjeller, Norway" />
    <attribute name="ebas_framework_acronym" value="" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="" />
    <attribute name="ebas_framework_contact_email" value="" />
    <attribute name="ebas_originator" value="&quot;Fiebig, Markus, Markus.Fiebig@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0002-3380-3470&quot;, &quot;Lunder, Chris, crl@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Duflot, Valentin, vduf@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2027, Kjeller, Norway&quot;" />
    <attribute name="ebas_submitter" value="&quot;Fiebig, Markus, Markus.Fiebig@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0002-3380-3470&quot;, &quot;Lunder, Chris, crl@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Duflot, Valentin, vduf@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2027, Kjeller, Norway&quot;" />
    <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" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="mobility particle size spectrometer" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_particle_number_size_distribution_amean" shape="d_D qc_particle_number_size_distribution_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_particle_number_size_distribution_amean" shape="d_D metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_particle_number_size_distribution_prec1587" shape="d_D time" type="double">
    <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_revision_date" value="2026-04-20T10:58:32.392126Z" />
    <attribute name="ebas_version" value="1" />
    <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="6mn" />
    <attribute name="ebas_station_code" value="NO0059G" />
    <attribute name="ebas_platform_code" value="NO0059S" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_latitude" type="double" value="-72.0117" />
    <attribute name="ebas_station_longitude" type="double" value="2.5351" />
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    <attribute name="ebas_matrix" value="pm10" />
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    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="" />
    <attribute name="ebas_framework_contact_email" value="" />
    <attribute name="ebas_originator" value="&quot;Fiebig, Markus, Markus.Fiebig@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0002-3380-3470&quot;, &quot;Lunder, Chris, crl@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Duflot, Valentin, vduf@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2027, Kjeller, Norway&quot;" />
    <attribute name="ebas_submitter" value="&quot;Fiebig, Markus, Markus.Fiebig@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0002-3380-3470&quot;, &quot;Lunder, Chris, crl@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Duflot, Valentin, vduf@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2027, Kjeller, Norway&quot;" />
    <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" />
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    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_particle_number_size_distribution_prec1587" shape="d_D qc_particle_number_size_distribution_prec1587_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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  </variable>
  <variable name="meta_particle_number_size_distribution_prec1587" shape="d_D metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_particle_number_size_distribution_perc8413" shape="d_D time" type="double">
    <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_revision_date" value="2026-04-20T10:58:32.392126Z" />
    <attribute name="ebas_version" value="1" />
    <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="6mn" />
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    <attribute name="ebas_platform_code" value="NO0059S" />
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    <attribute name="ebas_station_latitude" type="double" value="-72.0117" />
    <attribute name="ebas_station_longitude" type="double" value="2.5351" />
    <attribute name="ebas_station_altitude" value="1553.0 m" />
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    <attribute name="ebas_matrix" value="pm10" />
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    <attribute name="ebas_humidity_temperaure_control_description" value="sample heated to lab pressure" />
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    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="" />
    <attribute name="ebas_framework_contact_email" value="" />
    <attribute name="ebas_originator" value="&quot;Fiebig, Markus, Markus.Fiebig@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0002-3380-3470&quot;, &quot;Lunder, Chris, crl@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Duflot, Valentin, vduf@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2027, Kjeller, Norway&quot;" />
    <attribute name="ebas_submitter" value="&quot;Fiebig, Markus, Markus.Fiebig@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway, ORCID=0000-0002-3380-3470&quot;, &quot;Lunder, Chris, crl@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Duflot, Valentin, vduf@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2027, Kjeller, Norway&quot;" />
    <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_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>
