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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 Mount Chacaltaya" />
  <attribute name="keywords" value="aerosol, number_concentration_of_positive_ions_in_dry_aerosol_particles_in_air, GAW-WDCA, GUAN, particle_number_size_distribution, Mount Chacaltaya, BO0001R, ACTRIS" />
  <attribute name="id" value="VSEA-32RZ.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, GAW-WDCA, GUAN" />
  <attribute name="acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, GAW-WDCA, GUAN. Request acknowledgement details from data originator" />
  <attribute name="doi" value="https://doi.org/10.48597/VSEA-32RZ" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Andrade, M., Zaratti, F., Andrade, M., Zaratti, F., Andrade, M., Zaratti, F., Andrade, M., Zaratti, F., Andrade, M., Zaratti, F., Andrade, M., Zaratti, F., 2019, Particle_number_size_distribution at Mount Chacaltaya, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/VSEA-32RZ" />
  <attribute name="summary" value="Particle_number_size_distribution at Mount Chacaltaya. These measurements are gathered as a part of the following projects ACTRIS, GAW-WDCA, GUAN and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: particle_number_size_distribution in aerosol (number_concentration_of_positive_ions_in_dry_aerosol_particles_in_air), particle_number_size_distribution in aerosol (number_concentration_of_positive_ions_in_dry_aerosol_particles_in_air), particle_number_size_distribution in aerosol (number_concentration_of_positive_ions_in_dry_aerosol_particles_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="BO01L, Atmospheric Physics Laboratory, ALP, UMSA, Campus Cota Cota calle 27, Endifico FCPN piso 3, , La Paz, Bolivia" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2019-09-18T09:40:00 UTC" />
  <attribute name="date_metadata_modified" value="2019-09-18T09:40:00 UTC" />
  <attribute name="creator_name" value="Marcos Andrade, Francesco Zaratti, Marcos Andrade, Francesco Zaratti, Marcos Andrade, Francesco Zaratti, Marcos Andrade, Francesco Zaratti, Marcos Andrade, Francesco Zaratti, Marcos Andrade, Francesco Zaratti" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="mandrade@atmos.umd.edu, fzaratti@umsa.bo, mandrade@atmos.umd.edu, fzaratti@umsa.bo, mandrade@atmos.umd.edu, fzaratti@umsa.bo, mandrade@atmos.umd.edu, fzaratti@umsa.bo, mandrade@atmos.umd.edu, fzaratti@umsa.bo, mandrade@atmos.umd.edu, fzaratti@umsa.bo" />
  <attribute name="creator_institution" value="&quot;Laboratory for Atmospheric Physics, LAP&quot;, &quot;Laboratory for Atmospheric Physics, LAP&quot;, &quot;Laboratory for Atmospheric Physics, LAP&quot;, &quot;Laboratory for Atmospheric Physics, LAP&quot;, &quot;Laboratory for Atmospheric Physics, LAP&quot;, &quot;Laboratory for Atmospheric Physics, LAP&quot;, &quot;Laboratory for Atmospheric Physics, LAP&quot;, &quot;Laboratory for Atmospheric Physics, LAP&quot;, &quot;Laboratory for Atmospheric Physics, LAP&quot;, &quot;Laboratory for Atmospheric Physics, LAP&quot;, &quot;Laboratory for Atmospheric Physics, LAP&quot;, &quot;Laboratory for Atmospheric Physics, LAP&quot;" />
  <attribute name="contributor_name" value="Fernando Velarde, Fernando Velarde, Fernando Velarde, Fernando Velarde, Fernando Velarde, Fernando Velarde" />
  <attribute name="contributor_role" value="data submitter, data submitter, data submitter, 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="POINT Z (-16.35 -68.13 5240.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="-16.35" />
  <attribute name="geospatial_lat_max" type="double" value="-16.35" />
  <attribute name="geospatial_lon_min" type="double" value="-68.13" />
  <attribute name="geospatial_lon_max" type="double" value="-68.13" />
  <attribute name="geospatial_vertical_min" type="double" value="5240.0" />
  <attribute name="geospatial_vertical_max" type="double" value="5240.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2012-01-01T00:00:00 UTC" />
  <attribute name="time_coverage_end" value="2018-12-31T23:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0006-11-30T23:00:00.100000" />
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  <attribute name="ebas_citation" value="Andrade, M., Zaratti, F., Andrade, M., Zaratti, F., Andrade, M., Zaratti, F., Andrade, M., Zaratti, F., Andrade, M., Zaratti, F., Andrade, M., Zaratti, F., 2019, Particle_number_size_distribution at Mount Chacaltaya, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/VSEA-32RZ" />
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  <attribute name="ebas_file_creation" value="2024-02-19T11:18:36.217559 UTC" />
  <attribute name="ebas_export_state" value="2019-09-16T12:17:23.697000 UTC" />
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  <attribute name="ebas_startdate" value="20120101000000" />
  <attribute name="ebas_revision_date" value="20190918094000" />
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  <attribute name="ebas_version_description" value="initial revision, DMPS_control_lev2 v.0.0_1" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="7y" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_sample_duration" value="1h" />
  <attribute name="ebas_orig_time_res" value="5mn" />
  <attribute name="ebas_station_code" value="BO0001R" />
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  <attribute name="ebas_station_name" value="Mount Chacaltaya" />
  <attribute name="ebas_station_latitude" value="-16.2000007629395" />
  <attribute name="ebas_station_longitude" value="-68.0999984741211" />
  <attribute name="ebas_station_altitude" value="5320.0 m" />
  <attribute name="ebas_measuremenet_latitude" value="-16.35" />
  <attribute name="ebas_measurement_longitude" value="-68.13" />
  <attribute name="ebas_measurement_altitude" value="5240.0 m" />
  <attribute name="ebas_measurement_height" value="5.0 m" />
  <attribute name="ebas_regime" value="IMG" />
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  <attribute name="ebas_instrument_serial_number" value="SMPS-CHACALTAYA_BOLIVIA" />
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  <attribute name="ebas_standard_method" value="SOP=Wiedensohler2012" />
  <attribute name="ebas_inlet_type" value="Whole-air inlet" />
  <attribute name="ebas_inlet_description" value="Automatic heater dryer which is activated for Relative Humidity great than 90%, flow 162.00 l/min" />
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  <attribute name="ebas_humidity_temperaure_control_description" value="sample dried to below 40% RH with nafion dryer (1/4&quot; in diameter)" />
  <attribute name="ebas_volume_std_temperature" value="273.15 K" />
  <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
  <attribute name="ebas_measurement_uncertainty_expl" value="uncertainty range between instruments in intercomparison by Wiedensohler et al. 2012. (AMT)" />
  <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
  <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
  <attribute name="ebas_organization" value="BO01L, &quot;Atmospheric Physics Laboratory, ALP, UMSA, Campus Cota Cota calle 27, Endifico FCPN piso 3, , La Paz, Bolivia&quot;, , , , , , , " />
  <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA, GUAN" />
  <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols, German Ultrafine Aerosol Networ" />
  <attribute name="ebas_framework_description" value="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., 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., 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." />
  <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig, Ann Mari Fjaeraa" />
  <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no, amf@nilu.no" />
  <attribute name="ebas_originator" value="Zaratti, Francesco, fzaratti@umsa.bo, Laboratory for Atmospheric Physics, LAP, , Campus Cota Cota calle 27 FCPN Building piso 3, , 4680, La Paz, Bolivia" />
  <attribute name="ebas_submitter" value="Velarde, Fernando, fvelarde@chacaltaya.edu.bo, Laboratory for Atmospheric Physics, LAP, , Campus Cota Cota calle 27 FCPN Building piso 3, , 4680, La Paz, Bolivia" />
  <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, GAW-WDCA, GUAN. Request acknowledgement details from data originator" />
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(AMT)&quot;,&#xA;    &quot;Zero/negative values code&quot;: &quot;Zero possible&quot;,&#xA;    &quot;Zero/negative values&quot;: &quot;Zero values may appear due to statistical variations at very low concentrations&quot;,&#xA;    &quot;Organization&quot;: &quot;BO01L, \&quot;Atmospheric Physics Laboratory, ALP, UMSA, Campus Cota Cota calle 27, Endifico FCPN piso 3, , La Paz, Bolivia\&quot;, , , , , , , &quot;,&#xA;    &quot;Framework acronym&quot;: &quot;ACTRIS, GAW-WDCA, GUAN&quot;,&#xA;    &quot;Framework name&quot;: &quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols, German Ultrafine Aerosol Networ&quot;,&#xA;    &quot;Framework description&quot;: &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., 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., 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;,&#xA;    &quot;Framework contact name&quot;: &quot;Cathrine Lund Myhre, Markus Fiebig, Ann Mari Fjaeraa&quot;,&#xA;    &quot;Framework contact email&quot;: &quot;clm@nilu.no, Markus.Fiebig@nilu.no, amf@nilu.no&quot;,&#xA;    &quot;Originator&quot;: &quot;Zaratti, Francesco, fzaratti@umsa.bo, Laboratory for Atmospheric Physics, LAP, , Campus Cota Cota calle 27 FCPN Building piso 3, , 4680, La Paz, Bolivia&quot;,&#xA;    &quot;Submitter&quot;: &quot;Velarde, Fernando, fvelarde@chacaltaya.edu.bo, Laboratory for Atmospheric Physics, LAP, , Campus Cota Cota calle 27 FCPN Building piso 3, , 4680, La Paz, Bolivia&quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, GAW-WDCA, GUAN. Request acknowledgement details from data originator&quot;,&#xA;    &quot;Comment&quot;: &quot;None&quot;&#xA;}" />
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  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2012-01-01T00:30:00Z" />
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    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="4199.0" />
    <attribute name="time_coverage_duration" value="P0Y0M2556DT22H0M0.049S" />
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  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-04-12" />
    <attribute name="nciso_version" value="2.4.7" />
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    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
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  <variable name="pressure" shape="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="pressure_qc pressure_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="initial revision, DMPS_control_lev2 v.0.0_1" />
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    <attribute name="ebas_measuremenet_latitude" value="-16.35" />
    <attribute name="ebas_measurement_longitude" value="-68.13" />
    <attribute name="ebas_measurement_altitude" value="5240.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="pressure" />
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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_contact_name" value="Cathrine Lund Myhre, Markus Fiebig, Ann Mari Fjaeraa" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, GAW-WDCA, GUAN. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="None" />
  </variable>
  <variable name="pressure_qc" shape="pressure_qc_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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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="standard_name" value="relative_humidity" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="%" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="BO01L, &quot;Atmospheric Physics Laboratory, ALP, UMSA, Campus Cota Cota calle 27, Endifico FCPN piso 3, , La Paz, Bolivia&quot;, , , , , , , " />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA, GUAN" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols, German Ultrafine Aerosol Networ" />
    <attribute name="ebas_framework_description" value="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., 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., 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." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig, Ann Mari Fjaeraa" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no, amf@nilu.no" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, GAW-WDCA, GUAN. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="None" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <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="temperature_qc temperature_ebasmetadata" />
    <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="20190918094000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, DMPS_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="5mn" />
    <attribute name="ebas_station_code" value="BO0001R" />
    <attribute name="ebas_platform_code" value="BO0001S" />
    <attribute name="ebas_station_name" value="Mount Chacaltaya" />
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    <attribute name="ebas_station_longitude" value="-68.0999984741211" />
    <attribute name="ebas_station_altitude" value="5320.0 m" />
    <attribute name="ebas_measuremenet_latitude" value="-16.35" />
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    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="temperature" />
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    <attribute name="ebas_matrix" value="instrument" />
    <attribute name="ebas_laboratory_code" value="BO01L" />
    <attribute name="ebas_instrument_type" value="smps" />
    <attribute name="ebas_instrument_name" value="SMPS_UMSA-LAP_CHACALTAYA_BOLIVIA" />
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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="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="units" value="1/cm3" />
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    <attribute name="ebas_version_description" value="initial revision, DMPS_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" />
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    <attribute name="ebas_station_code" value="BO0001R" />
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    <attribute name="ebas_station_longitude" value="-68.0999984741211" />
    <attribute name="ebas_station_altitude" value="5320.0 m" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="particle_number_size_distribution" />
    <attribute name="ebas_unit" value="1/cm3" />
    <attribute name="ebas_matrix" value="aerosol" />
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    <attribute name="ebas_comment" value="None" />
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