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  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Ground based in situ observations of aerosol_absorption_coefficient at BEO Moussala (BG0001R) using filter_absorption_photometer" />
  <attribute name="keywords" value="NOAA-ESRL, aerosol, BEO Moussala, GAW-WDCA, ACTRIS, BG0001R, aerosol_absorption_coefficient" />
  <attribute name="id" value="5EWB-Y7N3.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, GAW-WDCA, NOAA-ESRL" />
  <attribute name="acknowledgement" type="double" />
  <attribute name="doi" value="https://doi.org/10.48597/5EWB-Y7N3" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Ivo Emilov Kalapov, aerosol_absorption_coefficient - filter_absorption_photometer at BEO Moussala, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/5EWB-Y7N3" />
  <attribute name="summary" value="Ground based in situ observations of aerosol_absorption_coefficient at BEO Moussala (BG0001R) using filter_absorption_photometer. These measurements are gathered as a part of the following projects ACTRIS, GAW-WDCA, NOAA-ESRL and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: aerosol_absorption_coefficient in aerosol" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="BG02L, Name not reported" />
  <attribute name="date_created" value="2014-12-19T10:04:30 UTC" />
  <attribute name="date_metadata_modified" value="2014-12-19T10:04:30 UTC" />
  <attribute name="creator_name" value="Ivo Emilov Kalapov" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="" />
  <attribute name="creator_institution" value="" />
  <attribute name="contributor_name" value="Ivo Emilov Kalapov" />
  <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="POINT Z (42.166667 23.583333 2971.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="42.166667" />
  <attribute name="geospatial_lat_max" type="double" value="42.166667" />
  <attribute name="geospatial_lon_min" type="double" value="23.583333" />
  <attribute name="geospatial_lon_max" type="double" value="23.583333" />
  <attribute name="geospatial_vertical_min" type="double" value="2971.0" />
  <attribute name="geospatial_vertical_max" type="double" value="2971.0" />
  <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="2013-01-01T00:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0001-00-00T00:00:00" />
  <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="Ivo Emilov Kalapov, aerosol_absorption_coefficient - filter_absorption_photometer at BEO Moussala, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/5EWB-Y7N3" />
  <attribute name="ebas_set_type_code" value="TU" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="5EWB-Y7N3.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/5EWB-Y7N3" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/5EWB-Y7N3" />
  <attribute name="ebas_file_creation" value="2023-12-08T10:29:15.941951 UTC" />
  <attribute name="ebas_export_state" value="2014-12-19T10:04:28.467000 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="20120101000000" />
  <attribute name="ebas_revision_date" value="20141219100430" />
  <attribute name="ebas_statistics" value="percentile:84.13" />
  <attribute name="ebas_period_code" value="1y" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_station_code" value="BG0001R" />
  <attribute name="ebas_platform_code" value="BG0001S" />
  <attribute name="ebas_station_name" value="BEO Moussala" />
  <attribute name="ebas_station_latitude" value="42.166667" />
  <attribute name="ebas_station_longitude" value="23.583333" />
  <attribute name="ebas_station_altitude" value="2971.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_component" value="aerosol_absorption_coefficient" />
  <attribute name="ebas_unit" value="1/Mm" />
  <attribute name="ebas_matrix" value="aerosol" />
  <attribute name="ebas_laboratory_code" value="BG02L" />
  <attribute name="ebas_instrument_type" value="filter_absorption_photometer" />
  <attribute name="ebas_instrument_name" value="GMD_CLAP-3W_BEO" />
  <attribute name="ebas_method_ref" value="BG02L_abs_coef" />
  <attribute name="ebas_organization" value="BG02L, Name not reported, , , , , , , " />
  <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA, NOAA-ESRL" />
  <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols, " />
  <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., " />
  <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig, Markus Fiebig" />
  <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no, Markus.Fiebig@nilu.no" />
  <attribute name="ebas_originator" value="Kalapov, Ivo Emilov, , , , , , , , , " />
  <attribute name="ebas_submitter" value="Kalapov, Ivo Emilov, , , , , , , , , " />
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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="comment" value="{&#xA;    &quot;Data definition&quot;: &quot;EBAS_1.1&quot;,&#xA;    &quot;Data license&quot;: &quot;https://creativecommons.org/licenses/by/4.0/&quot;,&#xA;    &quot;Citation&quot;: &quot;Ivo Emilov Kalapov, aerosol_absorption_coefficient - filter_absorption_photometer at BEO Moussala, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/5EWB-Y7N3&quot;,&#xA;    &quot;Set type code&quot;: &quot;TU&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;5EWB-Y7N3.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/5EWB-Y7N3&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/5EWB-Y7N3&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-08T10:29:15.941951 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2014-12-19T10:04:28.467000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20120101000000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20141219100430&quot;,&#xA;    &quot;Statistics&quot;: &quot;percentile:84.13&quot;,&#xA;    &quot;Period code&quot;: &quot;1y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1h&quot;,&#xA;    &quot;Station code&quot;: &quot;BG0001R&quot;,&#xA;    &quot;Platform code&quot;: &quot;BG0001S&quot;,&#xA;    &quot;Station name&quot;: &quot;BEO Moussala&quot;,&#xA;    &quot;Station latitude&quot;: &quot;42.166667&quot;,&#xA;    &quot;Station longitude&quot;: &quot;23.583333&quot;,&#xA;    &quot;Station altitude&quot;: &quot;2971.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Component&quot;: &quot;aerosol_absorption_coefficient&quot;,&#xA;    &quot;Unit&quot;: &quot;1/Mm&quot;,&#xA;    &quot;Matrix&quot;: &quot;aerosol&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;BG02L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;filter_absorption_photometer&quot;,&#xA;    &quot;Instrument name&quot;: &quot;GMD_CLAP-3W_BEO&quot;,&#xA;    &quot;Method ref&quot;: &quot;BG02L_abs_coef&quot;,&#xA;    &quot;Organization&quot;: &quot;BG02L, Name not reported, , , , , , , &quot;,&#xA;    &quot;Framework acronym&quot;: &quot;ACTRIS, GAW-WDCA, NOAA-ESRL&quot;,&#xA;    &quot;Framework name&quot;: &quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols, &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., &quot;,&#xA;    &quot;Framework contact name&quot;: &quot;Cathrine Lund Myhre, Markus Fiebig, Markus Fiebig&quot;,&#xA;    &quot;Framework contact email&quot;: &quot;clm@nilu.no, Markus.Fiebig@nilu.no, Markus.Fiebig@nilu.no&quot;,&#xA;    &quot;Originator&quot;: &quot;Kalapov, Ivo Emilov, , , , , , , , , &quot;,&#xA;    &quot;Submitter&quot;: &quot;Kalapov, Ivo Emilov, , , , , , , , , &quot;&#xA;}" />
  <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="8784" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <dimension name="aerosol_absorption_coefficient_qc_flags" length="2" />
  <group name="CFMetadata">
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    <attribute name="time_coverage_end" value="2012-12-31T23:30:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="3600.0" />
    <attribute name="time_coverage_duration" value="P0Y0M365DT23H0M0.000S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-18" />
    <attribute name="nciso_version" value="2.4.8" />
  </group>
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    <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>
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="volume_absorption_coefficient_in_air_due_to_dried_aerosol_particles" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="1/Mm" />
    <attribute name="ancillary_variables" value="aerosol_absorption_coefficient_qc aerosol_absorption_coefficient_ebasmetadata" />
    <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="20141219100430" />
    <attribute name="ebas_statistics" value="percentile:84.13" />
    <attribute name="ebas_station_code" value="BG0001R" />
    <attribute name="ebas_platform_code" value="BG0001S" />
    <attribute name="ebas_station_name" value="BEO Moussala" />
    <attribute name="ebas_station_latitude" value="42.166667" />
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    <attribute name="ebas_station_altitude" value="2971.0 m" />
    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="ebas_unit" value="1/Mm" />
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    <attribute name="ebas_organization" value="BG02L, Name not reported, , , , , , , " />
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    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols, " />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig, Markus Fiebig" />
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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="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 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
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    <attribute name="_CoordinateAxisType" value="Time" />
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    <attribute name="standard_name" value="time" />
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    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
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    <attribute name="_CoordinateAxisType" value="Time" />
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