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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_concentration at Pic du Midi" />
  <attribute name="summary" value="Particle_number_concentration at Pic du Midi. These measurements are gathered as a part of the following projects ACTRIS, GAW-WDCA 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_concentration in aerosol (number_concentration_of_particles_in_dry_aerosol_particles_in_air)']" />
  <attribute name="keywords" value="&quot;Pic du Midi&quot; FR0019R particle_number_concentration aerosol ACTRIS GAW-WDCA relative_humidity number_concentration_of_particles_in_dry_aerosol_particles_in_air" />
  <attribute name="id" value="5TM5-9H54.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, GAW-WDCA" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/5TM5-9H54" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Pont, V., Athier, G., Meyerfeld, Y., ACTRIS, GAW-WDCA, 2024, Particle_number_concentration at Pic du Midi, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/5TM5-9H54" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="FR05L &quot;Aerology Laboratory&quot; &quot;PO Box 31400, Toulouse&quot;" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2024-06-03T07:03:18.435081Z" />
  <attribute name="date_metadata_modified" value="2024-06-03T07:03:18Z" />
  <attribute name="creator_name" value="Veronique Pont, Gilles Athier, Yves Meyerfeld" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value=", gilles.athier@aero.obs-mip.fr, yves.meyerfeld@aero.obs-mip.fr" />
  <attribute name="creator_institution" value=", &quot;Observatoire Midi-Pyrenees, Laboratoire d'aerologie, OMP&quot;, &quot;Observatoire Midi-Pyrenees, Laboratoire d'aerologie, OMP&quot;" />
  <attribute name="contributor_name" value="Nicolas Pascal" />
  <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 ((0.1411 42.9372 2877), (0.141944 42.936667 2877))" />
  <attribute name="geospatial_lat_min" type="double" value="42.936667" />
  <attribute name="geospatial_lat_max" type="double" value="42.9372" />
  <attribute name="geospatial_lon_min" type="double" value="0.1411" />
  <attribute name="geospatial_lon_max" type="double" value="0.141944" />
  <attribute name="geospatial_vertical_min" type="double" value="2877.0" />
  <attribute name="geospatial_vertical_max" type="double" value="2877.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2021-01-01T00:00:00Z" />
  <attribute name="time_coverage_end" value="2024-01-01T00:00:00Z" />
  <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="Pont, V., Athier, G., Meyerfeld, Y., ACTRIS, GAW-WDCA, 2024, Particle_number_concentration at Pic du Midi, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/5TM5-9H54" />
  <attribute name="ebas_set_type_code" value="TU" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="5TM5-9H54.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/5TM5-9H54" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/5TM5-9H54" />
  <attribute name="ebas_file_creation" value="2026-06-11T17:49:30.888200Z" />
  <attribute name="ebas_export_state" value="2024-06-03T07:03:18.435081Z" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="2021-01-01T00:00:00.000000Z" />
  <attribute name="ebas_revision_date" value="2024-06-03T07:03:18.435081Z" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="initial revision" />
  <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_station_code" value="FR0019R" />
  <attribute name="ebas_platform_code" value="FR0019S" />
  <attribute name="ebas_station_name" value="Pic du Midi" />
  <attribute name="ebas_station_latitude" type="double" value="42.936667" />
  <attribute name="ebas_station_longitude" type="double" value="0.141944" />
  <attribute name="ebas_station_altitude" value="2877.0 m" />
  <attribute name="ebas_measurement_latitude" type="double" value="42.9372" />
  <attribute name="ebas_measurement_longitude" type="double" value="0.1411" />
  <attribute name="ebas_measurement_altitude" value="2877.0 m" />
  <attribute name="ebas_measurement_height" value="12.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_laboratory_code" value="FR05L" />
  <attribute name="ebas_instrument_type" value="cpc" />
  <attribute name="ebas_instrument_name" value="cpc_TSI_3750" />
  <attribute name="ebas_instrument_manufacturer" value="TSI" />
  <attribute name="ebas_instrument_model" value="3750" />
  <attribute name="ebas_instrument_serial_number" value="SN2431" />
  <attribute name="ebas_method_ref" value="FR05L_TSI_3750_PDM" />
  <attribute name="ebas_standard_method" value="None" />
  <attribute name="ebas_inlet_type" value="Hat or hood" />
  <attribute name="ebas_inlet_description" value="Whole air inlet with size cut of 30 um (based on mean wind speed); Air temperature conditional warming system to defrost the hat when needed; isokinetic flux;" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_humidity_temperaure_control_description" value="passive, sample heated from atmospheric to lab temperature (air conditioning at 20 °C in laboratory)" />
  <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="typical value of unit-to-unit variability" />
  <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="FR05L, Aerology Laboratory, , , &quot;PO Box 31400, Toulouse&quot;, , , , " />
  <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
  <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" />
  <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;" />
  <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
  <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
  <attribute name="ebas_originator" value="&quot;Pont, Veronique, , , , , , , , , &quot;, &quot;Athier, Gilles, gilles.athier@aero.obs-mip.fr, Observatoire Midi-Pyrenees, OMP, Laboratoire d'aerologie, 14 avenue Edouard Belin, , 31400, Toulouse, France&quot;, &quot;Meyerfeld, Yves, yves.meyerfeld@aero.obs-mip.fr, Observatoire Midi-Pyrenees, OMP, Laboratoire d'aerologie, 14 avenue Edouard Belin, , 31400, Toulouse, France&quot;" />
  <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &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. For using this data for any kind of publications, you must contact the data originator, in terms of acknowledgment" />
  <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="26280" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="3" />
  <dimension name="d_Location_d0" length="1" />
  <dimension name="qc_pressure_flags" length="1" />
  <dimension name="d_Location_d1" length="1" />
  <dimension name="qc_relative_humidity_flags" length="1" />
  <dimension name="qc_temperature_flags" length="1" />
  <dimension name="qc_particle_number_concentration_amean_flags" length="1" />
  <dimension name="qc_particle_number_concentration_prec1587_flags" length="1" />
  <dimension name="qc_particle_number_concentration_perc8413_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2021-01-01T00:30:00Z" />
    <attribute name="time_coverage_end" value="2023-12-31T23:30:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="3600.0" />
    <attribute name="time_coverage_duration" value="P0Y0M1094DT23H0M0.000S" />
  </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_d0 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="2024-06-03T07:03:18.435081Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <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="FR0019R" />
    <attribute name="ebas_platform_code" value="FR0019S" />
    <attribute name="ebas_station_name" value="Pic du Midi" />
    <attribute name="ebas_station_latitude" type="double" value="42.936667" />
    <attribute name="ebas_station_longitude" type="double" value="0.141944" />
    <attribute name="ebas_station_altitude" value="2877.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.9372" />
    <attribute name="ebas_measurement_longitude" type="double" value="0.1411" />
    <attribute name="ebas_measurement_altitude" value="2877.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 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="FR05L" />
    <attribute name="ebas_instrument_type" value="cpc" />
    <attribute name="ebas_instrument_name" value="cpc_TSI_3750" />
    <attribute name="ebas_instrument_manufacturer" value="TSI" />
    <attribute name="ebas_instrument_model" value="3750" />
    <attribute name="ebas_instrument_serial_number" value="SN2431" />
    <attribute name="ebas_method_ref" value="FR05L_TSI_3750_PDM" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Whole air inlet with size cut of 30 um (based on mean wind speed); Air temperature conditional warming system to defrost the hat when needed; isokinetic flux;" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="passive, sample heated from atmospheric to lab temperature (air conditioning at 20 °C in laboratory)" />
    <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="typical value of unit-to-unit variability" />
    <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="FR05L, Aerology Laboratory, , , &quot;PO Box 31400, Toulouse&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <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" />
    <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;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Pont, Veronique, , , , , , , , , &quot;, &quot;Athier, Gilles, gilles.athier@aero.obs-mip.fr, Observatoire Midi-Pyrenees, OMP, Laboratoire d'aerologie, 14 avenue Edouard Belin, , 31400, Toulouse, France&quot;, &quot;Meyerfeld, Yves, yves.meyerfeld@aero.obs-mip.fr, Observatoire Midi-Pyrenees, OMP, Laboratoire d'aerologie, 14 avenue Edouard Belin, , 31400, Toulouse, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &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. For using this data for any kind of publications, you must contact the data originator, in terms of acknowledgment" />
    <attribute name="ebas_comment" value="For updated information on this data, please contact the data originator" />
  </variable>
  <variable name="qc_pressure" shape="d_Location_d0 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>
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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="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="2024-06-03T07:03:18.435081Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <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="FR0019R" />
    <attribute name="ebas_platform_code" value="FR0019S" />
    <attribute name="ebas_station_name" value="Pic du Midi" />
    <attribute name="ebas_station_latitude" type="double" value="42.936667" />
    <attribute name="ebas_station_longitude" type="double" value="0.141944" />
    <attribute name="ebas_station_altitude" value="2877.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.9372" />
    <attribute name="ebas_measurement_longitude" type="double" value="0.1411" />
    <attribute name="ebas_measurement_altitude" value="2877.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 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="FR05L" />
    <attribute name="ebas_instrument_type" value="cpc" />
    <attribute name="ebas_instrument_name" value="cpc_TSI_3750" />
    <attribute name="ebas_instrument_manufacturer" value="TSI" />
    <attribute name="ebas_instrument_model" value="3750" />
    <attribute name="ebas_instrument_serial_number" value="SN2431" />
    <attribute name="ebas_method_ref" value="FR05L_TSI_3750_PDM" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Whole air inlet with size cut of 30 um (based on mean wind speed); Air temperature conditional warming system to defrost the hat when needed; isokinetic flux;" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="passive, sample heated from atmospheric to lab temperature (air conditioning at 20 °C in laboratory)" />
    <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="typical value of unit-to-unit variability" />
    <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="FR05L, Aerology Laboratory, , , &quot;PO Box 31400, Toulouse&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <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" />
    <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;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Pont, Veronique, , , , , , , , , &quot;, &quot;Athier, Gilles, gilles.athier@aero.obs-mip.fr, Observatoire Midi-Pyrenees, OMP, Laboratoire d'aerologie, 14 avenue Edouard Belin, , 31400, Toulouse, France&quot;, &quot;Meyerfeld, Yves, yves.meyerfeld@aero.obs-mip.fr, Observatoire Midi-Pyrenees, OMP, Laboratoire d'aerologie, 14 avenue Edouard Belin, , 31400, Toulouse, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &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. For using this data for any kind of publications, you must contact the data originator, in terms of acknowledgment" />
    <attribute name="ebas_comment" value="For updated information on this data, please contact the data originator" />
  </variable>
  <variable name="qc_relative_humidity" shape="d_Location_d1 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" />
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  <variable name="meta_relative_humidity" shape="d_Location_d1 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_d0 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="2024-06-03T07:03:18.435081Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <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="FR0019R" />
    <attribute name="ebas_platform_code" value="FR0019S" />
    <attribute name="ebas_station_name" value="Pic du Midi" />
    <attribute name="ebas_station_latitude" type="double" value="42.936667" />
    <attribute name="ebas_station_longitude" type="double" value="0.141944" />
    <attribute name="ebas_station_altitude" value="2877.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.9372" />
    <attribute name="ebas_measurement_longitude" type="double" value="0.1411" />
    <attribute name="ebas_measurement_altitude" value="2877.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 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="FR05L" />
    <attribute name="ebas_instrument_type" value="cpc" />
    <attribute name="ebas_instrument_name" value="cpc_TSI_3750" />
    <attribute name="ebas_instrument_manufacturer" value="TSI" />
    <attribute name="ebas_instrument_model" value="3750" />
    <attribute name="ebas_instrument_serial_number" value="SN2431" />
    <attribute name="ebas_method_ref" value="FR05L_TSI_3750_PDM" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Whole air inlet with size cut of 30 um (based on mean wind speed); Air temperature conditional warming system to defrost the hat when needed; isokinetic flux;" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="passive, sample heated from atmospheric to lab temperature (air conditioning at 20 °C in laboratory)" />
    <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="typical value of unit-to-unit variability" />
    <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="FR05L, Aerology Laboratory, , , &quot;PO Box 31400, Toulouse&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <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" />
    <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;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Pont, Veronique, , , , , , , , , &quot;, &quot;Athier, Gilles, gilles.athier@aero.obs-mip.fr, Observatoire Midi-Pyrenees, OMP, Laboratoire d'aerologie, 14 avenue Edouard Belin, , 31400, Toulouse, France&quot;, &quot;Meyerfeld, Yves, yves.meyerfeld@aero.obs-mip.fr, Observatoire Midi-Pyrenees, OMP, Laboratoire d'aerologie, 14 avenue Edouard Belin, , 31400, Toulouse, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &quot;" />
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  </variable>
  <variable name="qc_temperature" shape="d_Location_d0 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_d0 metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_particle_number_concentration_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="number_concentration_of_particles_in_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="1/cm3" />
    <attribute name="ancillary_variables" value="qc_particle_number_concentration_amean meta_particle_number_concentration_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="2024-06-03T07:03:18.435081Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <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="FR0019R" />
    <attribute name="ebas_platform_code" value="FR0019S" />
    <attribute name="ebas_station_name" value="Pic du Midi" />
    <attribute name="ebas_station_latitude" type="double" value="42.936667" />
    <attribute name="ebas_station_longitude" type="double" value="0.141944" />
    <attribute name="ebas_station_altitude" value="2877.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.9372" />
    <attribute name="ebas_measurement_longitude" type="double" value="0.1411" />
    <attribute name="ebas_measurement_altitude" value="2877.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="particle_number_concentration" />
    <attribute name="ebas_unit" value="1/cm3" />
    <attribute name="ebas_matrix" value="aerosol" />
    <attribute name="ebas_laboratory_code" value="FR05L" />
    <attribute name="ebas_instrument_type" value="cpc" />
    <attribute name="ebas_instrument_name" value="cpc_TSI_3750" />
    <attribute name="ebas_instrument_manufacturer" value="TSI" />
    <attribute name="ebas_instrument_model" value="3750" />
    <attribute name="ebas_instrument_serial_number" value="SN2431" />
    <attribute name="ebas_method_ref" value="FR05L_TSI_3750_PDM" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Whole air inlet with size cut of 30 um (based on mean wind speed); Air temperature conditional warming system to defrost the hat when needed; isokinetic flux;" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="passive, sample heated from atmospheric to lab temperature (air conditioning at 20 °C in laboratory)" />
    <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="0.0001 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="5.0 %" />
    <attribute name="ebas_measurement_uncertainty_expl" value="typical value of unit-to-unit variability" />
    <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="FR05L, Aerology Laboratory, , , &quot;PO Box 31400, Toulouse&quot;, , , , " />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Pont, Veronique, , , , , , , , , &quot;, &quot;Athier, Gilles, gilles.athier@aero.obs-mip.fr, Observatoire Midi-Pyrenees, OMP, Laboratoire d'aerologie, 14 avenue Edouard Belin, , 31400, Toulouse, France&quot;, &quot;Meyerfeld, Yves, yves.meyerfeld@aero.obs-mip.fr, Observatoire Midi-Pyrenees, OMP, Laboratoire d'aerologie, 14 avenue Edouard Belin, , 31400, Toulouse, France&quot;" />
    <attribute name="ebas_submitter" value="&quot;Pascal, Nicolas, , , , , , , , , &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. For using this data for any kind of publications, you must contact the data originator, in terms of acknowledgment" />
    <attribute name="ebas_comment" value="For updated information on this data, please contact the data originator" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlenumberconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle number concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlephase" />
    <attribute name="actris_matrix_preferred_term" value="aerosol particle phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/condensationparticlecounter" />
    <attribute name="actris_instrument_type_preferred_term" value="condensation particle counter" />
    <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" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCA" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_particle_number_concentration_amean" shape="qc_particle_number_concentration_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_concentration_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_particle_number_concentration_prec1587" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="number_concentration_of_particles_in_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="1/cm3" />
    <attribute name="ancillary_variables" value="qc_particle_number_concentration_prec1587 meta_particle_number_concentration_prec1587" />
    <attribute name="cell_methods" value="time: percentile:15.87" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2024-06-03T07:03:18.435081Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <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_station_code" value="FR0019R" />
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    <attribute name="ebas_station_name" value="Pic du Midi" />
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    <attribute name="ebas_station_longitude" type="double" value="0.141944" />
    <attribute name="ebas_station_altitude" value="2877.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.9372" />
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    <attribute name="ebas_measurement_altitude" value="2877.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="particle_number_concentration" />
    <attribute name="ebas_unit" value="1/cm3" />
    <attribute name="ebas_matrix" value="aerosol" />
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    <attribute name="ebas_instrument_name" value="cpc_TSI_3750" />
    <attribute name="ebas_instrument_manufacturer" value="TSI" />
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    <attribute name="ebas_instrument_serial_number" value="SN2431" />
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    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Whole air inlet with size cut of 30 um (based on mean wind speed); Air temperature conditional warming system to defrost the hat when needed; isokinetic flux;" />
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    <attribute name="ebas_humidity_temperaure_control_description" value="passive, sample heated from atmospheric to lab temperature (air conditioning at 20 °C in laboratory)" />
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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" />
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    <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;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
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    <attribute name="ebas_originator" value="&quot;Pont, Veronique, , , , , , , , , &quot;, &quot;Athier, Gilles, gilles.athier@aero.obs-mip.fr, Observatoire Midi-Pyrenees, OMP, Laboratoire d'aerologie, 14 avenue Edouard Belin, , 31400, Toulouse, France&quot;, &quot;Meyerfeld, Yves, yves.meyerfeld@aero.obs-mip.fr, Observatoire Midi-Pyrenees, OMP, Laboratoire d'aerologie, 14 avenue Edouard Belin, , 31400, Toulouse, France&quot;" />
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    <attribute name="ebas_comment" value="For updated information on this data, please contact the data originator" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlenumberconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle number concentration" />
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    <attribute name="actris_matrix_preferred_term" value="aerosol particle phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/condensationparticlecounter" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, GAW-WDCA" />
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    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_particle_number_concentration_prec1587" shape="qc_particle_number_concentration_prec1587_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_particle_number_concentration_prec1587" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_particle_number_concentration_perc8413" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="number_concentration_of_particles_in_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="1/cm3" />
    <attribute name="ancillary_variables" value="qc_particle_number_concentration_perc8413 meta_particle_number_concentration_perc8413" />
    <attribute name="cell_methods" value="time: percentile:84.13" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2024-06-03T07:03:18.435081Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision" />
    <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_station_code" value="FR0019R" />
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    <attribute name="ebas_station_name" value="Pic du Midi" />
    <attribute name="ebas_station_latitude" type="double" value="42.936667" />
    <attribute name="ebas_station_longitude" type="double" value="0.141944" />
    <attribute name="ebas_station_altitude" value="2877.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.9372" />
    <attribute name="ebas_measurement_longitude" type="double" value="0.1411" />
    <attribute name="ebas_measurement_altitude" value="2877.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="particle_number_concentration" />
    <attribute name="ebas_unit" value="1/cm3" />
    <attribute name="ebas_matrix" value="aerosol" />
    <attribute name="ebas_laboratory_code" value="FR05L" />
    <attribute name="ebas_instrument_type" value="cpc" />
    <attribute name="ebas_instrument_name" value="cpc_TSI_3750" />
    <attribute name="ebas_instrument_manufacturer" value="TSI" />
    <attribute name="ebas_instrument_model" value="3750" />
    <attribute name="ebas_instrument_serial_number" value="SN2431" />
    <attribute name="ebas_method_ref" value="FR05L_TSI_3750_PDM" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
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    <attribute name="ebas_humidity_temperaure_control_description" value="passive, sample heated from atmospheric to lab temperature (air conditioning at 20 °C in laboratory)" />
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    <attribute name="ebas_detection_limit_expl" value="Determined only by instrument counting statistics, no detection limit flag used" />
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    <attribute name="ebas_measurement_uncertainty_expl" value="typical value of unit-to-unit variability" />
    <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="FR05L, Aerology Laboratory, , , &quot;PO Box 31400, Toulouse&quot;, , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <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" />
    <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;" />
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    <attribute name="calendar" value="standard" />
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    <attribute name="_CoordinateAxisType" value="Time" />
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