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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: ['temperature in instrument', 'aerosol_absorption_coefficient in pm10']" />
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  <attribute name="project" value="ACTRIS, GAW-WDCA, NOAA-ESRL" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/SSNZ-HZB7" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Kulmala, M., Petaja, T., Virkkula, A., Luoma, K., 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/SSNZ-HZB7" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="FI03L &quot;University of Helsinki&quot; UHEL &quot;Institute for Atmospheric and Earth System Research (INAR)&quot; &quot;PO BOX 64&quot; FI-00014 &quot;University of Helsinki&quot; Finland" />
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  <attribute name="date_created" value="2026-03-23T07:36:12.257187Z" />
  <attribute name="date_metadata_modified" value="2026-01-21T13:21:10Z" />
  <attribute name="creator_name" value="Markku Kulmala, Tuukka Petaja, Aki Virkkula, Krista Luoma, Tuukka Petäjä, Tapio Elomaa" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value=", tuukka.petaja@helsinki.fi, aki.virkkula@helsinki.fi, krista.q.luoma@helsinki.fi, tuukka.petaja@helsinki.fi, tapio.elomaa@helsinki.com" />
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  <attribute name="contributor_name" value="Krista Luoma, Tapio Elomaa, Markku Kulmala, Tuukka Petäjä, Elomaa Tapio, Derek Hageman" />
  <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="MULTIPOINT Z ((24.29478 61.847384 181), (24.283333 61.85 181))" />
  <attribute name="geospatial_lat_min" type="double" value="61.847384" />
  <attribute name="geospatial_lat_max" type="double" value="61.85" />
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  <attribute name="time_coverage_start" value="2018-01-01T00:00:00Z" />
  <attribute name="time_coverage_end" value="2026-01-01T00:00:00Z" />
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  <attribute name="timezone" value="UTC" />
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  <attribute name="ebas_citation" value="Kulmala, M., Petaja, T., Virkkula, A., Luoma, K., 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/SSNZ-HZB7" />
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  <attribute name="ebas_originator" value="&quot;Kulmala, Markku, , , , , , , , , &quot;, &quot;Petaja, 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, Helsinki, Finland&quot;, &quot;Virkkula, Aki, aki.virkkula@helsinki.fi, University of Helsinki, UHEL, Division of Atmospheric Sciences, PO BOX 64, , FI-00014, Helsinki, Finland&quot;, &quot;Luoma, Krista, krista.q.luoma@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;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;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="ebas_submitter" value="&quot;Luoma, Krista, krista.q.luoma@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;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;, &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;" />
  <attribute name="ebas_comment" value="Standard Bond et al. 1999 values for K1 and K2 used at all wavelengths" />
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  <attribute name="creator_url" value="ebas.nilu.no" />
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  <dimension name="time" length="61344" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="7" />
  <dimension name="d_Location" length="1" />
  <dimension name="qc_temperature_flags" length="2" />
  <dimension name="d_Wavelength" length="3" />
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    <attribute name="time_coverage_start" value="2018-01-01T00:30:00Z" />
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    <attribute name="long_name" value="time bounds for measurement" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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