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  <attribute name="title" value="Aerosol_absorption_coefficient at Pallas (Sammaltunturi)" />
  <attribute name="summary" value="Aerosol_absorption_coefficient at Pallas (Sammaltunturi). 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: ['aerosol_absorption_coefficient in aerosol (volume_absorption_coefficient_in_air_due_to_dried_aerosol_particles)']" />
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  <attribute name="doi" value="https://doi.org/10.48597/NBTZ-ST29" />
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  <attribute name="citation" value="Asmi, E., ACTRIS, GAW-WDCA, 2026, Aerosol_absorption_coefficient at Pallas (Sammaltunturi), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/NBTZ-ST29" />
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  <attribute name="institution" value="FI01L &quot;Finnish Meteorological Institute&quot; FMI/IKO &quot;Atmospheric Composition Unit (IKO)&quot; &quot;Erik Palménin aukio&quot; FI-00560 Helsinki Finland" />
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  <attribute name="creator_name" value="Eija Asmi" />
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  <attribute name="creator_institution" value="&quot;Finnish Meteorological Institute, FMI&quot;" />
  <attribute name="contributor_name" value="John Backman" />
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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" />
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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_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;Asmi, Eija, eija.asmi@fmi.fi, Finnish Meteorological Institute, FMI, , Erik Palmenin aukio 1, , FI-00560, Helsinki, Finland&quot;" />
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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. Request acknowledgment details from data originator" />
    <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" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlephase" />
    <attribute name="actris_matrix_preferred_term" value="aerosol particle phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="filter absorption photometer" />
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    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_aerosol_absorption_coefficient_prec1587" shape="d_Wavelength qc_aerosol_absorption_coefficient_prec1587_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_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="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="qc_aerosol_absorption_coefficient_perc8413 meta_aerosol_absorption_coefficient_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="2026-03-24T08:11:15.850667Z" />
    <attribute name="ebas_version" value="1.0" />
    <attribute name="ebas_version_description" value="initial submission to ebas" />
    <attribute name="ebas_statistics" value="percentile:84.13" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
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    <attribute name="ebas_platform_code" value="FI0096S" />
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    <attribute name="ebas_station_gaw_name" value="Pallas" />
    <attribute name="ebas_station_other_ids" value="FIPALL (SYLVA)" />
    <attribute name="ebas_station_land_use" value="Forest" />
    <attribute name="ebas_station_setting" value="Rural" />
    <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="67.973333333" />
    <attribute name="ebas_station_longitude" type="double" value="24.116111111" />
    <attribute name="ebas_station_altitude" value="565.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="67.97361" />
    <attribute name="ebas_measurement_longitude" type="double" value="24.11583" />
    <attribute name="ebas_measurement_altitude" value="560.0 m" />
    <attribute name="ebas_measurement_height" value="7.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="aerosol_absorption_coefficient" />
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    <attribute name="ebas_matrix" value="aerosol" />
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    <attribute name="ebas_instrument_name" value="Magee_AE33_PAL" />
    <attribute name="ebas_instrument_manufacturer" value="Magee" />
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    <attribute name="ebas_method_ref" value="FI01L_abs_coef_AE33_v2" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Total air heated inlet" />
    <attribute name="ebas_flow_rate" value="4.0 l/min" />
    <attribute name="ebas_humidity_temperaure_control" value="Temperature controlled" />
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    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_detection_limit_expl" value="signal for reference zero + 3 times stdev with filtered air" />
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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_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. Request acknowledgment details from data originator" />
    <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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    <attribute name="actris_matrix_preferred_term" value="aerosol particle phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="filter absorption photometer" />
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    <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" />
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  <variable name="qc_aerosol_absorption_coefficient_perc8413" shape="d_Wavelength qc_aerosol_absorption_coefficient_perc8413_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
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  <variable name="meta_aerosol_absorption_coefficient_perc8413" shape="d_Wavelength metadata_time" type="String">
    <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 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
  <variable name="metadata_time" shape="metadata_time" type="double">
    <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" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
  <variable name="d_Wavelength" shape="d_Wavelength" type="double" />
</netcdf>
