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  <attribute name="title" value="Aerosol_absorption_coefficient at Hyytiälä" />
  <attribute name="summary" value="Aerosol_absorption_coefficient at Hyytiälä. 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 pm10']" />
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  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/P9R4-M3PK" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Kulmala, M., Petäjä, T., Elomaa, T., ACTRIS, GAW-WDCA, NOAA-ESRL, 2026, Aerosol_absorption_coefficient at Hyytiälä, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/P9R4-M3PK" />
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  <attribute name="date_created" value="2026-03-26T13:02:04.562794Z" />
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  <attribute name="creator_name" value="Markku Kulmala, Tuukka Petäjä, Tapio Elomaa" />
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  <attribute name="contributor_name" value="Markku Kulmala, Tuukka Petäjä, Elomaa Tapio, Derek Hageman, Tapio Elomaa" />
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  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
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  <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig, Markus Fiebig" />
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    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_submitter" value="&quot;Kulmala, Markku, , , , , , , , , &quot;, &quot;Petäjä, Tuukka, tuukka.petaja@helsinki.fi, University of Helsinki, UHEL, &quot;&quot;Division of Atmospheric Sciences, Department of Physics&quot;&quot;, PO BOX 64, , FI-00014, University of Helsinki, Finland&quot;, &quot;Tapio, Elomaa, tapio.elomaa@helsinki.fi, University of Helsinki, UHEL, Institute for Atmospheric and Earth System Research, Gustaf Hällströmin katu 2, , FI-00560, Helsinki, Finland&quot;, &quot;Hageman, Derek, derek.hageman@helsinki.fi, University of Helsinki, UHEL, Institute for Atmospheric and Earth System Research, Gustaf Hällströmin katu 2, , FI-00560, Helsinki, Finland&quot;, &quot;Elomaa, Tapio, tapio.elomaa@helsinki.com, University of Helsinki, UHEL, Institute for Atmospheric and Earth System Research, Gustaf Hällströmin katu 2, , FI-00560, Helsinki, Finland&quot;" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlelightabsorptioncoefficient" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle light absorption coefficient" />
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  <variable name="meta_aerosol_absorption_coefficient_prec1587" shape="d_Wavelength metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_aerosol_absorption_coefficient_perc8413" shape="d_Wavelength time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_station_name" value="Hyytiälä" />
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    <attribute name="ebas_station_state_province" value="Pirka" />
    <attribute name="ebas_station_land_use" value="Forest" />
    <attribute name="ebas_station_setting" value="Rural" />
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    <attribute name="ebas_station_longitude" type="double" value="24.283333" />
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    <attribute name="ebas_measurement_longitude" type="double" value="24.29478" />
    <attribute name="ebas_measurement_altitude" value="181.0 m" />
    <attribute name="ebas_measurement_height" value="4.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="aerosol_absorption_coefficient" />
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    <attribute name="ebas_submitter" value="&quot;Kulmala, Markku, , , , , , , , , &quot;, &quot;Petäjä, Tuukka, tuukka.petaja@helsinki.fi, University of Helsinki, UHEL, &quot;&quot;Division of Atmospheric Sciences, Department of Physics&quot;&quot;, PO BOX 64, , FI-00014, University of Helsinki, Finland&quot;, &quot;Tapio, Elomaa, tapio.elomaa@helsinki.fi, University of Helsinki, UHEL, Institute for Atmospheric and Earth System Research, Gustaf Hällströmin katu 2, , FI-00560, Helsinki, Finland&quot;, &quot;Hageman, Derek, derek.hageman@helsinki.fi, University of Helsinki, UHEL, Institute for Atmospheric and Earth System Research, Gustaf Hällströmin katu 2, , FI-00560, Helsinki, Finland&quot;, &quot;Elomaa, Tapio, tapio.elomaa@helsinki.com, University of Helsinki, UHEL, Institute for Atmospheric and Earth System Research, Gustaf Hällströmin katu 2, , FI-00560, Helsinki, Finland&quot;" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="long_name" value="time of measurement" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01T00:00:00Z" />
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    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
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    <attribute name="long_name" value="time of ebas metadata intervals" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01T00:00:00Z" />
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    <attribute name="_CoordinateAxisType" value="Time" />
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  <variable name="d_Wavelength" shape="d_Wavelength" type="double" />
</netcdf>
