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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 sun_tracking_filter_radiometer at Troll (NO0058G)" />
  <attribute name="keywords" value="aerosol_optical_depth, Troll, atmosphere_optical_thickness_due_to_ambient_aerosol_particles, NO0058G, aerosol, GAW-WDCA" />
  <attribute name="id" value="M5HR-2JWX.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="GAW-WDCA" />
  <attribute name="acknowledgement" value="Request acknowledgement details from WORCC-PMOD/WRC (worcc@pmodwrc.ch)" />
  <attribute name="doi" value="https://doi.org/10.48597/M5HR-2JWX" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Georg H. Hansen, Georg H. Hansen, Georg H. Hansen, Georg H. Hansen, aerosol_optical_depth - sun_tracking_filter_radiometer at Troll, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/M5HR-2JWX" />
  <attribute name="summary" value="Ground based in situ observations of sun_tracking_filter_radiometer at Troll (NO0058G). These measurements are gathered as a part of the following projects GAW-WDCA and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: aerosol_optical_depth in aerosol (atmosphere_optical_thickness_due_to_ambient_aerosol_particles), aerosol_optical_depth in aerosol (atmosphere_optical_thickness_due_to_ambient_aerosol_particles), aerosol_optical_depth in aerosol (atmosphere_optical_thickness_due_to_ambient_aerosol_particles)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="NO01L, Norwegian Institute for Air Research, NILU, Instituttveien 18, 2007, Kjeller, Norway" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2019-06-10T19:27:43 UTC" />
  <attribute name="date_metadata_modified" value="2019-06-10T19:27:43 UTC" />
  <attribute name="creator_name" value="Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Georg H. Hansen, Georg H. Hansen, Georg H. Hansen, Georg H. Hansen" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="Kerstin.Stebel@nilu.no, Kerstin.Stebel@nilu.no, Kerstin.Stebel@nilu.no, Kerstin.Stebel@nilu.no, Kerstin.Stebel@nilu.no, Kerstin.Stebel@nilu.no, Kerstin.Stebel@nilu.no, Kerstin.Stebel@nilu.no, Kerstin.Stebel@nilu.no, Kerstin.Stebel@nilu.no, Kerstin.Stebel@nilu.no, Kerstin.Stebel@nilu.no, Kerstin.Stebel@nilu.no, Kerstin.Stebel@nilu.no, Kerstin.Stebel@nilu.no, Kerstin.Stebel@nilu.no, Georg.H.Hansen@nilu.no, Georg.H.Hansen@nilu.no, Georg.H.Hansen@nilu.no, Georg.H.Hansen@nilu.no" />
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  <attribute name="contributor_name" value="Stelios Kazadzis, Natalia Kouremeti, Stelios Kazadzis, Natalia Kouremeti, Stelios Kazadzis, Natalia Kouremeti, Stelios Kazadzis, Natalia Kouremeti, Stelios Kazadzis, Natalia Kouremeti, Stelios Kazadzis, Natalia Kouremeti, Stelios Kazadzis, Natalia Kouremeti, Stelios Kazadzis, Natalia Kouremeti, Stelios Kazadzis, Natalia Kouremeti, Stelios Kazadzis, Natalia Kouremeti, Stelios Kazadzis, Natalia Kouremeti, Stelios Kazadzis, Natalia Kouremeti, Stelios Kazadzis, Natalia Kouremeti, Stelios Kazadzis, Natalia Kouremeti, Stelios Kazadzis, Natalia Kouremeti, Stelios Kazadzis, Natalia Kouremeti, Natalia Kouremeti, Stelios Kazadzis, Natalia Kouremeti, Stelios Kazadzis, Natalia Kouremeti, Stelios Kazadzis, Natalia Kouremeti, Stelios Kazadzis" />
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  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
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  <attribute name="ebas_citation" value="Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Kerstin Stebel, Georg H. Hansen, Georg H. Hansen, Georg H. Hansen, Georg H. Hansen, aerosol_optical_depth - sun_tracking_filter_radiometer at Troll, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/M5HR-2JWX" />
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  <attribute name="ebas_period_code" value="5y" />
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  <attribute name="ebas_sample_duration" value="1h" />
  <attribute name="ebas_orig_time_res" value="1mn" />
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  <attribute name="ebas_platform_code" value="NO0058S" />
  <attribute name="ebas_station_name" value="Troll" />
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  <attribute name="ebas_station_setting" value="Polar" />
  <attribute name="ebas_station_latitude" value="-72.016667" />
  <attribute name="ebas_station_longitude" value="2.533333" />
  <attribute name="ebas_station_altitude" value="1309.0 m" />
  <attribute name="ebas_measurement_height" value="1.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_unit" value="no unit" />
  <attribute name="ebas_matrix" value="aerosol" />
  <attribute name="ebas_laboratory_code" value="NO01L" />
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  <attribute name="ebas_standard_method" value="Sunphotometry_PFR_manual_2009" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_humidity_temperaure_control_description" value="in situ measurement, ambient conditions" />
  <attribute name="ebas_volume_std_temperature" value="ambient" />
  <attribute name="ebas_volume_std_pressure" value="ambient" />
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  <attribute name="ebas_originator" value="Hansen, Georg H., Georg.H.Hansen@nilu.no, Norwegian Institute for Air Research, NILU, ATMOS, P.O.Box 100, , 2027, Kjeller, Norway" />
  <attribute name="ebas_submitter" value="Kazadzis, Stelios, Stelios.Kazadzis@pmodwrc.ch, Physikalisch-Meteorologisches Observatorium Davos, PMOD/WRC, WORCC, Dorfstrasse 33, , 7260, Davos Dorf, Switzerland" />
  <attribute name="ebas_acknowledgement" value="Request acknowledgement details from WORCC-PMOD/WRC (worcc@pmodwrc.ch)" />
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    <attribute name="ebas_detection_limit_expl" value="0.001 optical depths" />
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    <attribute name="ebas_framework_description" value="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." />
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    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from WORCC-PMOD/WRC (worcc@pmodwrc.ch)" />
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  <variable name="aerosol_optical_depth_stddev_0_qc" shape="aerosol_optical_depth_stddev_0_qc_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
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  <variable name="aerosol_optical_depth_stddev_0_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="aerosol_optical_depth_stddev_1" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="no unit" />
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    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from WORCC-PMOD/WRC (worcc@pmodwrc.ch)" />
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  <variable name="aerosol_optical_depth_stddev_1_qc" shape="aerosol_optical_depth_stddev_1_qc_flags time" type="int">
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  </variable>
  <variable name="aerosol_optical_depth_stddev_1_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="aerosol_optical_depth_stddev_2" shape="time" type="double">
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    <attribute name="ebas_volume_std_pressure" value="ambient" />
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    <attribute name="ebas_detection_limit_expl" value="0.001 optical depths" />
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    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from WORCC-PMOD/WRC (worcc@pmodwrc.ch)" />
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  <variable name="aerosol_optical_depth_stddev_2_qc" shape="aerosol_optical_depth_stddev_2_qc_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
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  <variable name="aerosol_optical_depth_stddev_2_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="aerosol_optical_depth_stddev_3" shape="time" type="double">
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    <attribute name="standard_name" value="atmosphere_optical_thickness_due_to_ambient_aerosol_particles" />
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  <variable name="aerosol_optical_depth_stddev_3_qc" shape="aerosol_optical_depth_stddev_3_qc_flags time" type="int">
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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" />
    <attribute name="calendar" value="gregorian" />
    <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" />
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    <attribute name="units" value="days since 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
