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  <attribute name="title" value="Attenuation_coefficient, bypass_fraction, equivalent_black_carbon, reference_beam_signal, reference_zero_signal, sensing_beam_signal and sensing_zero_signal at Zeppelin mountain (Ny-Ålesund)" />
  <attribute name="summary" value="Attenuation_coefficient, bypass_fraction, equivalent_black_carbon, reference_beam_signal, reference_zero_signal, sensing_beam_signal and sensing_zero_signal at Zeppelin mountain (Ny-Ålesund). 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: ['attenuation_coefficient in pm10 (mass_concentration_of_attenuation_coefficient_in_pm10_in_air)', 'bypass_fraction in pm10 (mass_concentration_of_bypass_fraction_in_pm10_in_air)', 'equivalent_black_carbon in pm10 (mass_concentration_of_equivalent_black_carbon_in_pm10_in_air)', 'reference_beam_signal in pm10 (mass_concentration_of_reference_beam_signal_in_pm10_in_air)', 'reference_zero_signal in pm10 (mass_concentration_of_reference_zero_signal_in_pm10_in_air)', 'sensing_beam_signal in pm10 (mass_concentration_of_sensing_beam_signal_in_pm10_in_air)', 'sensing_zero_signal in pm10 (mass_concentration_of_sensing_zero_signal_in_pm10_in_air)']" />
  <attribute name="keywords" value="&quot;Zeppelin mountain (Ny-Ålesund)&quot; NO0042G attenuation_coefficient bypass_fraction equivalent_black_carbon reference_beam_signal reference_zero_signal sensing_beam_signal sensing_zero_signal pm10 ACTRIS GAW-WDCA mass_concentration_of_attenuation_coefficient_in_pm10_in_air mass_concentration_of_bypass_fraction_in_pm10_in_air mass_concentration_of_equivalent_black_carbon_in_pm10_in_air mass_concentration_of_reference_beam_signal_in_pm10_in_air mass_concentration_of_reference_zero_signal_in_pm10_in_air mass_concentration_of_sensing_beam_signal_in_pm10_in_air mass_concentration_of_sensing_zero_signal_in_pm10_in_air" />
  <attribute name="id" value="EYAA-5G4S.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/EYAA-5G4S" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Eleftheriadis, K., Vratolis, S., ACTRIS, GAW-WDCA, 2013, Attenuation_coefficient, bypass_fraction, equivalent_black_carbon, reference_beam_signal, reference_zero_signal, sensing_beam_signal and sensing_zero_signal at Zeppelin mountain (Ny-Ålesund), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/EYAA-5G4S" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="GR05L &quot;National Centre of Scientific Research&quot; &quot;Demokritos, Athens, Greece&quot;" />
  <attribute name="date_created" value="2014-09-23T08:07:52.830000Z" />
  <attribute name="date_metadata_modified" value="2013-07-24T00:00:00Z" />
  <attribute name="creator_name" value="Konstantinos Eleftheriadis, Sterios Vratolis" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value=", " />
  <attribute name="creator_institution" value=", " />
  <attribute name="contributor_name" value="Konstantinos Eleftheriadis, Sterios Vratolis" />
  <attribute name="contributor_role" value="data submitter, data submitter" />
  <attribute name="publisher_type" value="institution" />
  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_institution" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_email" value="ebas@nilu.no" />
  <attribute name="publisher_url" value="https://www.nilu.no/" />
  <attribute name="geospatial_bounds" value="POINT Z (11.88668 78.90715 474)" />
  <attribute name="geospatial_lat_min" type="double" value="78.90715" />
  <attribute name="geospatial_lat_max" type="double" value="78.90715" />
  <attribute name="geospatial_lon_min" type="double" value="11.88668" />
  <attribute name="geospatial_lon_max" type="double" value="11.88668" />
  <attribute name="geospatial_vertical_min" type="double" value="474.0" />
  <attribute name="geospatial_vertical_max" type="double" value="474.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2012-01-01T00:00:00Z" />
  <attribute name="time_coverage_end" value="2013-01-01T00:00:00Z" />
  <attribute name="time_coverage_duration" value="P0001-00-00T00:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-00T00:00:00" />
  <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="Eleftheriadis, K., Vratolis, S., ACTRIS, GAW-WDCA, 2013, Attenuation_coefficient, bypass_fraction, equivalent_black_carbon, reference_beam_signal, reference_zero_signal, sensing_beam_signal and sensing_zero_signal at Zeppelin mountain (Ny-Ålesund), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/EYAA-5G4S" />
  <attribute name="ebas_set_type_code" value="TU" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="EYAA-5G4S.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/EYAA-5G4S" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/EYAA-5G4S" />
  <attribute name="ebas_file_creation" value="2026-05-17T14:50:25.297556Z" />
  <attribute name="ebas_export_state" value="2014-09-23T08:07:52.830000Z" />
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  <attribute name="ebas_startdate" value="2012-01-01T00:00:00.000000Z" />
  <attribute name="ebas_revision_date" value="2013-07-24T00:00:00.000000Z" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_period_code" value="1y" />
  <attribute name="ebas_resolution_code" value="30mn" />
  <attribute name="ebas_station_code" value="NO0042G" />
  <attribute name="ebas_platform_code" value="NO0042S" />
  <attribute name="ebas_station_name" value="Zeppelin mountain (Ny-Ålesund)" />
  <attribute name="ebas_station_wdca_id" value="GAWANO__ZEP" />
  <attribute name="ebas_station_gaw_id" value="ZEP" />
  <attribute name="ebas_station_gaw_name" value="Zeppelin Mountain (Ny Ålesund)" />
  <attribute name="ebas_station_land_use" value="Gravel and stone" />
  <attribute name="ebas_station_setting" value="Polar" />
  <attribute name="ebas_station_gaw_type" value="G" />
  <attribute name="ebas_station_wmo_region" type="long" value="6" />
  <attribute name="ebas_station_latitude" type="double" value="78.90715" />
  <attribute name="ebas_station_longitude" type="double" value="11.88668" />
  <attribute name="ebas_station_altitude" value="474.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="pm10" />
  <attribute name="ebas_laboratory_code" value="GR05L" />
  <attribute name="ebas_instrument_type" value="filter_absorption_photometer" />
  <attribute name="ebas_instrument_name" value="Magee31_NA01_1" />
  <attribute name="ebas_method_ref" value="GR05L_aethalometer_AE31_control_lev0_0_0_1" />
  <attribute name="ebas_organization" value="GR05L, National Centre of Scientific Research, , , &quot;Demokritos, Athens, Greece&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;Eleftheriadis, Konstantinos, , , , , , , , , &quot;, &quot;Vratolis, Sterios, , , , , , , , , &quot;" />
  <attribute name="ebas_submitter" value="&quot;Eleftheriadis, Konstantinos, , , , , , , , , &quot;, &quot;Vratolis, Sterios, , , , , , , , , &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." />
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  <attribute name="Metadata_Conventions" value="Unidata Dataset Discovery v1.0" />
  <attribute name="geospatial_lat_units" value="degrees_north" />
  <attribute name="geospatial_lon_units" value="degrees_east" />
  <attribute name="standard_name_vocabulary" value="CF-1.7, ACDD-1.3" />
  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="_CoordSysBuilder" value="ucar.nc2.internal.dataset.conv.CF1Convention" />
  <dimension name="time" length="17568" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <dimension name="d_Wavelength_d0" length="4" />
  <dimension name="qc_attenuation_coefficient_flags" length="2" />
  <dimension name="d_Wavelength_d1" length="3" />
  <dimension name="qc_bypass_fraction_flags" length="2" />
  <dimension name="qc_equivalent_black_carbon_flags" length="2" />
  <dimension name="qc_reference_beam_signal_flags" length="2" />
  <dimension name="qc_reference_zero_signal_flags" length="2" />
  <dimension name="qc_sensing_beam_signal_flags" length="2" />
  <dimension name="qc_sensing_zero_signal_flags" length="2" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2012-01-01T00:15:00Z" />
    <attribute name="time_coverage_end" value="2012-12-31T23:45:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="1800.0" />
    <attribute name="time_coverage_duration" value="P0Y0M365DT23H30M0.000S" />
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  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-18" />
    <attribute name="nciso_version" value="2.4.8" />
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  <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_attenuation_coefficient" shape="d_Wavelength_d0 time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_attenuation_coefficient_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="no unit" />
    <attribute name="ancillary_variables" value="qc_attenuation_coefficient meta_attenuation_coefficient" />
    <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="2013-07-24T00:00:00.000000Z" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_station_code" value="NO0042G" />
    <attribute name="ebas_platform_code" value="NO0042S" />
    <attribute name="ebas_station_name" value="Zeppelin mountain (Ny-Ålesund)" />
    <attribute name="ebas_station_wdca_id" value="GAWANO__ZEP" />
    <attribute name="ebas_station_gaw_id" value="ZEP" />
    <attribute name="ebas_station_gaw_name" value="Zeppelin Mountain (Ny Ålesund)" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Polar" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="78.90715" />
    <attribute name="ebas_station_longitude" type="double" value="11.88668" />
    <attribute name="ebas_station_altitude" value="474.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="attenuation_coefficient" />
    <attribute name="ebas_unit" value="no unit" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="GR05L" />
    <attribute name="ebas_instrument_type" value="filter_absorption_photometer" />
    <attribute name="ebas_instrument_name" value="Magee31_NA01_1" />
    <attribute name="ebas_method_ref" value="GR05L_aethalometer_AE31_control_lev0_0_0_1" />
    <attribute name="ebas_organization" value="GR05L, National Centre of Scientific Research, , , &quot;Demokritos, Athens, Greece&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;Eleftheriadis, Konstantinos, , , , , , , , , &quot;, &quot;Vratolis, Sterios, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Eleftheriadis, Konstantinos, , , , , , , , , &quot;, &quot;Vratolis, Sterios, , , , , , , , , &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." />
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    <attribute name="standard_name" value="status_flag" />
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    <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="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_bypass_fraction_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="no unit" />
    <attribute name="ancillary_variables" value="qc_bypass_fraction meta_bypass_fraction" />
    <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="2013-07-24T00:00:00.000000Z" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_station_code" value="NO0042G" />
    <attribute name="ebas_platform_code" value="NO0042S" />
    <attribute name="ebas_station_name" value="Zeppelin mountain (Ny-Ålesund)" />
    <attribute name="ebas_station_wdca_id" value="GAWANO__ZEP" />
    <attribute name="ebas_station_gaw_id" value="ZEP" />
    <attribute name="ebas_station_gaw_name" value="Zeppelin Mountain (Ny Ålesund)" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Polar" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="78.90715" />
    <attribute name="ebas_station_longitude" type="double" value="11.88668" />
    <attribute name="ebas_station_altitude" value="474.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="bypass_fraction" />
    <attribute name="ebas_unit" value="no unit" />
    <attribute name="ebas_matrix" value="pm10" />
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    <attribute name="ebas_organization" value="GR05L, National Centre of Scientific Research, , , &quot;Demokritos, Athens, Greece&quot;, , , , " />
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    <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" />
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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." />
  </variable>
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    <attribute name="units" value="1" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_equivalent_black_carbon" shape="d_Wavelength_d0 time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_equivalent_black_carbon_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_equivalent_black_carbon meta_equivalent_black_carbon" />
    <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="2013-07-24T00:00:00.000000Z" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_station_code" value="NO0042G" />
    <attribute name="ebas_platform_code" value="NO0042S" />
    <attribute name="ebas_station_name" value="Zeppelin mountain (Ny-Ålesund)" />
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    <attribute name="ebas_station_gaw_name" value="Zeppelin Mountain (Ny Ålesund)" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Polar" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="78.90715" />
    <attribute name="ebas_station_longitude" type="double" value="11.88668" />
    <attribute name="ebas_station_altitude" value="474.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="equivalent_black_carbon" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="GR05L" />
    <attribute name="ebas_instrument_type" value="filter_absorption_photometer" />
    <attribute name="ebas_instrument_name" value="Magee31_NA01_1" />
    <attribute name="ebas_method_ref" value="GR05L_aethalometer_AE31_control_lev0_0_0_1" />
    <attribute name="ebas_organization" value="GR05L, National Centre of Scientific Research, , , &quot;Demokritos, Athens, Greece&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" />
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</netcdf>
