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  <attribute name="title" value="Aerosol_absorption_coefficient at Izana" />
  <attribute name="summary" value="Aerosol_absorption_coefficient at Izana. 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: ['pressure in instrument', 'relative_humidity in instrument (relative_humidity)', 'temperature in instrument', 'aerosol_absorption_coefficient in pm10']" />
  <attribute name="keywords" value="Izana ES0018G aerosol_absorption_coefficient pm10 ACTRIS GAW-WDCA relative_humidity" />
  <attribute name="id" value="GMH5-M8MR.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, GAW-WDCA" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/GMH5-M8MR" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Rodríguez, S., Prats, N., Barreto, A., ACTRIS, GAW-WDCA, 2025, Aerosol_absorption_coefficient at Izana, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/GMH5-M8MR" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="ES07L &quot;Agencia Estatal de Meteorologia, Izana Atmospheric Research Center&quot; AEMET &quot;La Marina 20 planta 6&quot; E-38071 &quot;Santa Cruz de Tenerife&quot; Spain" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2025-05-07T07:39:12.772944Z" />
  <attribute name="date_metadata_modified" value="2025-05-07T07:39:12Z" />
  <attribute name="creator_name" value="Sergio Rodríguez, Natalia Prats, Africa Barreto" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="abarretov@aemet.es, npratsp@aemet.es, abarretov@aemet.es" />
  <attribute name="creator_institution" value="&quot;Agencia Estatal de Meteorologia, Izana Atmospheric Research Centre, AEMET&quot;, &quot;Agencia Estatal de Meteorologia, Izaña Atmospheric Research Centre, AEMET&quot;, &quot;Agencia Estatal de Meteorologia, Izana Atmospheric Research Centre, AEMET&quot;" />
  <attribute name="contributor_name" value="Africa Barreto, Natalia Prats" />
  <attribute name="contributor_role" value="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="POINT Z (-16.4994 28.309 2373)" />
  <attribute name="geospatial_lat_min" type="double" value="28.309" />
  <attribute name="geospatial_lat_max" type="double" value="28.309" />
  <attribute name="geospatial_lon_min" type="double" value="-16.4994" />
  <attribute name="geospatial_lon_max" type="double" value="-16.4994" />
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  <attribute name="time_coverage_start" value="2006-01-01T00:00:00Z" />
  <attribute name="time_coverage_end" value="2025-01-01T00:00:00Z" />
  <attribute name="time_coverage_duration" value="P0019-00-00T00:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-00T01:00:00" />
  <attribute name="timezone" value="UTC" />
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  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Rodríguez, S., Prats, N., Barreto, A., ACTRIS, GAW-WDCA, 2025, Aerosol_absorption_coefficient at Izana, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/GMH5-M8MR" />
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  <attribute name="ebas_timezone" value="UTC" />
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  <attribute name="ebas_file_creation" value="2026-05-08T06:41:16.558311Z" />
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  <attribute name="ebas_startdate" value="2006-01-01T00:00:00.000000Z" />
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  <attribute name="ebas_version" value="1.0" />
  <attribute name="ebas_version_description" value="initial revision." />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="19y" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_sample_duration" value="1h" />
  <attribute name="ebas_orig_time_res" value="1mn" />
  <attribute name="ebas_station_code" value="ES0018G" />
  <attribute name="ebas_platform_code" value="ES0018S" />
  <attribute name="ebas_station_name" value="Izana" />
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  <attribute name="ebas_station_gaw_id" value="IZO" />
  <attribute name="ebas_station_gaw_name" value="Izaña (Tenerife)" />
  <attribute name="ebas_station_land_use" value="Gravel and stone" />
  <attribute name="ebas_station_setting" value="Mountain" />
  <attribute name="ebas_station_gaw_type" value="G" />
  <attribute name="ebas_station_wmo_region" type="long" value="1" />
  <attribute name="ebas_station_latitude" type="double" value="28.309" />
  <attribute name="ebas_station_longitude" type="double" value="-16.4994" />
  <attribute name="ebas_station_altitude" value="2373.0 m" />
  <attribute name="ebas_measurement_height" value="8.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_laboratory_code" value="ES07L" />
  <attribute name="ebas_instrument_type" value="filter_absorption_photometer" />
  <attribute name="ebas_instrument_name" value="Thermo_MAAP_SN050-PM10amb" />
  <attribute name="ebas_instrument_manufacturer" value="Thermo" />
  <attribute name="ebas_instrument_model" value="5012" />
  <attribute name="ebas_instrument_serial_number" value="050" />
  <attribute name="ebas_method_ref" value="ES07L_abs_coef_PM10amb_MAAP_v1" />
  <attribute name="ebas_standard_method" value="Multi-angle_Correction=Petzold2004" />
  <attribute name="ebas_inlet_type" value="Impactor--direct" />
  <attribute name="ebas_inlet_description" value="PM10 impactor (digitel, 16.67 l/m)." />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_humidity_temperaure_control_description" value="none" />
  <attribute name="ebas_volume_std_temperature" value="273.15 K" />
  <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
  <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
  <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_acronym" value="ACTRIS, GAW-WDCA" />
  <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
  <attribute name="ebas_framework_description" value="&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.&quot;, &quot;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;" />
  <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;Rodríguez, Sergio, abarretov@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izana Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;, &quot;Prats, Natalia, npratsp@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izaña Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;, &quot;Barreto, Africa, abarretov@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izana Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;" />
  <attribute name="ebas_submitter" value="&quot;Barreto, Africa, abarretov@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izana Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;, &quot;Prats, Natalia, npratsp@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izaña Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;" />
  <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 acknowledgement details from data originator" />
  <attribute name="ebas_comment" value="Data processed according to Standard method.The correction proposed by Muller et al. (Atmos. Meas. Tech., 4, 245-268, 2011) was not performed in this version. Flag &quot;110&quot; is used for those events where PM10 is higher than 30 ug/m3 mostly asociated to Saharan dust. However dust events with PM10 lower than 30 ug/m3 are also observed" />
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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" />
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  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
  <attribute name="_CoordSysBuilder" value="ucar.nc2.internal.dataset.conv.CF1Convention" />
  <dimension name="time" length="159264" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="19" />
  <dimension name="d_Location" length="1" />
  <dimension name="qc_pressure_flags" length="4" />
  <dimension name="qc_relative_humidity_flags" length="4" />
  <dimension name="qc_temperature_flags" length="4" />
  <dimension name="d_Wavelength" length="1" />
  <dimension name="qc_aerosol_absorption_coefficient_amean_flags" length="4" />
  <dimension name="qc_aerosol_absorption_coefficient_prec1587_flags" length="4" />
  <dimension name="qc_aerosol_absorption_coefficient_perc8413_flags" length="4" />
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    <attribute name="time_coverage_start" value="2006-01-01T00:30:00Z" />
    <attribute name="time_coverage_end" value="2024-12-31T23:30:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="3764.0" />
    <attribute name="time_coverage_duration" value="P0Y0M6939DT23H0M0.000S" />
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    <attribute name="metadata_creation" value="2026-05-18" />
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    <attribute name="long_name" value="time bounds for measurement" />
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    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
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  <variable name="v_pressure" shape="d_Location time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="hPa" />
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    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" type="long" value="1" />
    <attribute name="ebas_station_latitude" type="double" value="28.309" />
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    <attribute name="ebas_laboratory_code" value="ES07L" />
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    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM10 impactor (digitel, 16.67 l/m)." />
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    <attribute name="ebas_humidity_temperaure_control_description" value="none" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&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.&quot;, &quot;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;" />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
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    <attribute name="ebas_originator" value="&quot;Rodríguez, Sergio, abarretov@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izana Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;, &quot;Prats, Natalia, npratsp@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izaña Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;, &quot;Barreto, Africa, abarretov@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izana Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data processed according to Standard method.The correction proposed by Muller et al. (Atmos. Meas. Tech., 4, 245-268, 2011) was not performed in this version. Flag &quot;110&quot; is used for those events where PM10 is higher than 30 ug/m3 mostly asociated to Saharan dust. However dust events with PM10 lower than 30 ug/m3 are also observed" />
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    <attribute name="ancillary_variables" value="qc_relative_humidity meta_relative_humidity" />
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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;Rodríguez, Sergio, abarretov@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izana Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;, &quot;Prats, Natalia, npratsp@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izaña Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;, &quot;Barreto, Africa, abarretov@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izana Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;" />
    <attribute name="ebas_submitter" value="&quot;Barreto, Africa, abarretov@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izana Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;, &quot;Prats, Natalia, npratsp@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izaña Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;" />
    <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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data processed according to Standard method.The correction proposed by Muller et al. (Atmos. Meas. Tech., 4, 245-268, 2011) was not performed in this version. Flag &quot;110&quot; is used for those events where PM10 is higher than 30 ug/m3 mostly asociated to Saharan dust. However dust events with PM10 lower than 30 ug/m3 are also observed" />
  </variable>
  <variable name="qc_relative_humidity" shape="d_Location qc_relative_humidity_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" />
  </variable>
  <variable name="meta_relative_humidity" shape="d_Location metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_temperature" shape="d_Location time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="K" />
    <attribute name="ancillary_variables" value="qc_temperature meta_temperature" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2025-05-07T07:39:12.772944Z" />
    <attribute name="ebas_version" value="1.0" />
    <attribute name="ebas_version_description" value="initial revision." />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0018G" />
    <attribute name="ebas_platform_code" value="ES0018S" />
    <attribute name="ebas_station_name" value="Izana" />
    <attribute name="ebas_station_wdca_id" value="GAWAES__IZO" />
    <attribute name="ebas_station_gaw_id" value="IZO" />
    <attribute name="ebas_station_gaw_name" value="Izaña (Tenerife)" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" type="long" value="1" />
    <attribute name="ebas_station_latitude" type="double" value="28.309" />
    <attribute name="ebas_station_longitude" type="double" value="-16.4994" />
    <attribute name="ebas_station_altitude" value="2373.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="temperature" />
    <attribute name="ebas_unit" value="K" />
    <attribute name="ebas_matrix" value="instrument" />
    <attribute name="ebas_laboratory_code" value="ES07L" />
    <attribute name="ebas_instrument_type" value="filter_absorption_photometer" />
    <attribute name="ebas_instrument_name" value="Thermo_MAAP_SN050-PM10amb" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
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    <attribute name="ebas_instrument_serial_number" value="050" />
    <attribute name="ebas_method_ref" value="ES07L_abs_coef_PM10amb_MAAP_v1" />
    <attribute name="ebas_standard_method" value="Multi-angle_Correction=Petzold2004" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM10 impactor (digitel, 16.67 l/m)." />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="none" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="ES07L, &quot;Agencia Estatal de Meteorologia, Izana Atmospheric Research Center&quot;, AEMET, , La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&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.&quot;, &quot;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;" />
    <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;Rodríguez, Sergio, abarretov@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izana Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;, &quot;Prats, Natalia, npratsp@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izaña Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;, &quot;Barreto, Africa, abarretov@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izana Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;" />
    <attribute name="ebas_submitter" value="&quot;Barreto, Africa, abarretov@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izana Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;, &quot;Prats, Natalia, npratsp@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izaña Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;" />
    <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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data processed according to Standard method.The correction proposed by Muller et al. (Atmos. Meas. Tech., 4, 245-268, 2011) was not performed in this version. Flag &quot;110&quot; is used for those events where PM10 is higher than 30 ug/m3 mostly asociated to Saharan dust. However dust events with PM10 lower than 30 ug/m3 are also observed" />
  </variable>
  <variable name="qc_temperature" shape="d_Location qc_temperature_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" />
  </variable>
  <variable name="meta_temperature" shape="d_Location metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_aerosol_absorption_coefficient_amean" shape="d_Wavelength time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="1/Mm" />
    <attribute name="ancillary_variables" value="qc_aerosol_absorption_coefficient_amean meta_aerosol_absorption_coefficient_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2025-05-07T07:39:12.772944Z" />
    <attribute name="ebas_version" value="1.0" />
    <attribute name="ebas_version_description" value="initial revision." />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0018G" />
    <attribute name="ebas_platform_code" value="ES0018S" />
    <attribute name="ebas_station_name" value="Izana" />
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    <attribute name="ebas_station_gaw_id" value="IZO" />
    <attribute name="ebas_station_gaw_name" value="Izaña (Tenerife)" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" type="long" value="1" />
    <attribute name="ebas_station_latitude" type="double" value="28.309" />
    <attribute name="ebas_station_longitude" type="double" value="-16.4994" />
    <attribute name="ebas_station_altitude" value="2373.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="aerosol_absorption_coefficient" />
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    <attribute name="ebas_matrix" value="pm10" />
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    <attribute name="ebas_inlet_description" value="PM10 impactor (digitel, 16.67 l/m)." />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
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    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
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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;Barreto, Africa, abarretov@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izana Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;, &quot;Prats, Natalia, npratsp@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izaña Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;" />
    <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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data processed according to Standard method.The correction proposed by Muller et al. (Atmos. Meas. Tech., 4, 245-268, 2011) was not performed in this version. Flag &quot;110&quot; is used for those events where PM10 is higher than 30 ug/m3 mostly asociated to Saharan dust. However dust events with PM10 lower than 30 ug/m3 are also observed" />
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    <attribute name="actris_variable_preferred_term" value="aerosol particle light absorption coefficient" />
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    <attribute name="actris_matrix_preferred_term" value="PM10" />
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    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_aerosol_absorption_coefficient_amean" shape="d_Wavelength qc_aerosol_absorption_coefficient_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_aerosol_absorption_coefficient_amean" 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_prec1587" 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="ancillary_variables" value="qc_aerosol_absorption_coefficient_prec1587 meta_aerosol_absorption_coefficient_prec1587" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="initial revision." />
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    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_station_gaw_type" value="G" />
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    <attribute name="ebas_station_latitude" type="double" value="28.309" />
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    <attribute name="ebas_component" value="aerosol_absorption_coefficient" />
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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 acknowledgement details from data originator" />
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    <attribute name="actris_variable_preferred_term" value="aerosol particle light absorption coefficient" />
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    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/filterabsorptionphotometer" />
    <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" />
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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" />
    <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="2025-05-07T07:39:12.772944Z" />
    <attribute name="ebas_version" value="1.0" />
    <attribute name="ebas_version_description" value="initial revision." />
    <attribute name="ebas_statistics" value="percentile:84.13" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0018G" />
    <attribute name="ebas_platform_code" value="ES0018S" />
    <attribute name="ebas_station_name" value="Izana" />
    <attribute name="ebas_station_wdca_id" value="GAWAES__IZO" />
    <attribute name="ebas_station_gaw_id" value="IZO" />
    <attribute name="ebas_station_gaw_name" value="Izaña (Tenerife)" />
    <attribute name="ebas_station_land_use" value="Gravel and stone" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_gaw_type" value="G" />
    <attribute name="ebas_station_wmo_region" type="long" value="1" />
    <attribute name="ebas_station_latitude" type="double" value="28.309" />
    <attribute name="ebas_station_longitude" type="double" value="-16.4994" />
    <attribute name="ebas_station_altitude" value="2373.0 m" />
    <attribute name="ebas_measurement_height" value="8.0 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="pm10" />
    <attribute name="ebas_laboratory_code" value="ES07L" />
    <attribute name="ebas_instrument_type" value="filter_absorption_photometer" />
    <attribute name="ebas_instrument_name" value="Thermo_MAAP_SN050-PM10amb" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="5012" />
    <attribute name="ebas_instrument_serial_number" value="050" />
    <attribute name="ebas_method_ref" value="ES07L_abs_coef_PM10amb_MAAP_v1" />
    <attribute name="ebas_standard_method" value="Multi-angle_Correction=Petzold2004" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM10 impactor (digitel, 16.67 l/m)." />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="none" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.033 1/Mm" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument noise characteristics, no detection limit flag used" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="ES07L, &quot;Agencia Estatal de Meteorologia, Izana Atmospheric Research Center&quot;, AEMET, , La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="&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.&quot;, &quot;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;" />
    <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;Rodríguez, Sergio, abarretov@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izana Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;, &quot;Prats, Natalia, npratsp@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izaña Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;, &quot;Barreto, Africa, abarretov@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izana Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;" />
    <attribute name="ebas_submitter" value="&quot;Barreto, Africa, abarretov@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izana Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;, &quot;Prats, Natalia, npratsp@aemet.es, Agencia Estatal de Meteorologia, AEMET, Izaña Atmospheric Research Centre, La Marina 20 planta 6, , E-38071, Santa Cruz de Tenerife, Spain&quot;" />
    <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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data processed according to Standard method.The correction proposed by Muller et al. (Atmos. Meas. Tech., 4, 245-268, 2011) was not performed in this version. Flag &quot;110&quot; is used for those events where PM10 is higher than 30 ug/m3 mostly asociated to Saharan dust. However dust events with PM10 lower than 30 ug/m3 are also observed" />
    <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/PM10" />
    <attribute name="actris_matrix_preferred_term" value="PM10" />
    <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_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">
    <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_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_Location" shape="d_Location" type="String" />
  <variable name="d_Wavelength" shape="d_Wavelength" type="double" />
</netcdf>
