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  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Pm10_mass at Hurghada" />
  <attribute name="summary" value="Pm10_mass at Hurghada. 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: ['pm10_mass in pm10 (mass_concentration_of_pm10_ambient_aerosol_particles_in_air)']" />
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  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="GAW-WDCA" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/4AEA-TNPA" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Elawadi, A., GAW-WDCA, 2018, Pm10_mass at Hurghada, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/4AEA-TNPA" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="EG01L &quot;Egyptian Meteorological Authority&quot; EMA &quot;El Khalifa El Maamoun St.&quot; &quot;Kobry El Koba&quot; Cairo Egypt" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2018-12-10T13:30:00.000000Z" />
  <attribute name="date_metadata_modified" value="2018-12-10T13:30:00Z" />
  <attribute name="creator_name" value="Abdelhamid Elawadi" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="hameedsuu@yahoo.com" />
  <attribute name="creator_institution" value="" />
  <attribute name="contributor_name" value="Zeinab Salah" />
  <attribute name="contributor_role" value="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 (33.749886111 27.28998889 7)" />
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  <attribute name="time_coverage_end" value="2016-09-23T00:00:00Z" />
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  <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="Elawadi, A., GAW-WDCA, 2018, Pm10_mass at Hurghada, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/4AEA-TNPA" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="4AEA-TNPA.nc" />
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  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/4AEA-TNPA" />
  <attribute name="ebas_file_creation" value="2026-05-08T04:05:13.114394Z" />
  <attribute name="ebas_export_state" value="2018-12-10T13:30:00.000000Z" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="2008-12-02T00:00:00.000000Z" />
  <attribute name="ebas_revision_date" value="2018-12-10T13:30:00.000000Z" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="8y" />
  <attribute name="ebas_resolution_code" value="1d" />
  <attribute name="ebas_station_code" value="EG0002U" />
  <attribute name="ebas_platform_code" value="EG0002S" />
  <attribute name="ebas_station_name" value="Hurghada" />
  <attribute name="ebas_station_gaw_id" value="HUR" />
  <attribute name="ebas_station_land_use" value="Residential" />
  <attribute name="ebas_station_setting" value="Coastal" />
  <attribute name="ebas_station_wmo_region" type="long" value="1" />
  <attribute name="ebas_station_latitude" type="double" value="27.28998889" />
  <attribute name="ebas_station_longitude" type="double" value="33.749886111" />
  <attribute name="ebas_station_altitude" value="7.0 m" />
  <attribute name="ebas_measurement_altitude" value="7.0 m" />
  <attribute name="ebas_measurement_height" value="2.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_component" value="pm10_mass" />
  <attribute name="ebas_unit" value="ug/m3" />
  <attribute name="ebas_matrix" value="pm10" />
  <attribute name="ebas_laboratory_code" value="EG01L" />
  <attribute name="ebas_instrument_type" value="high_vol_sampler" />
  <attribute name="ebas_instrument_name" value="high_vol_HUR" />
  <attribute name="ebas_instrument_manufacturer" value="Thermo" />
  <attribute name="ebas_instrument_model" value="VFC-PM10" />
  <attribute name="ebas_method_ref" value="EG01L_VFC-PM10" />
  <attribute name="ebas_organization" value="EG01L, Egyptian Meteorological Authority, EMA, , El Khalifa El Maamoun St., Kobry El Koba, , Cairo, Egypt" />
  <attribute name="ebas_framework_acronym" value="GAW-WDCA" />
  <attribute name="ebas_framework_name" value="World Data Centre for Aerosols" />
  <attribute name="ebas_framework_description" value="&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="Markus Fiebig" />
  <attribute name="ebas_framework_contact_email" value="Markus.Fiebig@nilu.no" />
  <attribute name="ebas_originator" value="&quot;Elawadi, Abdelhamid, hameedsuu@yahoo.com, , , , , , , , &quot;" />
  <attribute name="ebas_submitter" value="&quot;Salah, Zeinab, zeinabsalah@gmail.com, , , , , , , , &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 framework: GAW-WDCA." />
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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" />
  <attribute name="standard_name_vocabulary" value="CF-1.7, ACDD-1.3" />
  <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="2029" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="12" />
  <dimension name="qc_pm10_mass_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2008-12-02T12:00:00Z" />
    <attribute name="time_coverage_end" value="2016-09-22T12:00:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="121462.0" />
    <attribute name="time_coverage_duration" value="P0Y0M2851DT0H0M0.000S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-17" />
    <attribute name="nciso_version" value="2.4.8" />
  </group>
  <variable name="time_bnds" shape="time tbnds" type="double">
    <attribute name="long_name" value="time bounds for measurement" />
  </variable>
  <variable name="metadata_time_bnds" shape="metadata_time tbnds" type="double">
    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
  </variable>
  <variable name="v_pm10_mass" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_pm10_ambient_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_pm10_mass meta_pm10_mass" />
    <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="2018-12-10T13:30:00.000000Z" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="EG0002U" />
    <attribute name="ebas_platform_code" value="EG0002S" />
    <attribute name="ebas_station_name" value="Hurghada" />
    <attribute name="ebas_station_gaw_id" value="HUR" />
    <attribute name="ebas_station_land_use" value="Residential" />
    <attribute name="ebas_station_setting" value="Coastal" />
    <attribute name="ebas_station_wmo_region" type="long" value="1" />
    <attribute name="ebas_station_latitude" type="double" value="27.28998889" />
    <attribute name="ebas_station_longitude" type="double" value="33.749886111" />
    <attribute name="ebas_station_altitude" value="7.0 m" />
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    <attribute name="ebas_measurement_height" value="2.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="pm10_mass" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="EG01L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="high_vol_HUR" />
    <attribute name="ebas_instrument_manufacturer" value="Thermo" />
    <attribute name="ebas_instrument_model" value="VFC-PM10" />
    <attribute name="ebas_method_ref" value="EG01L_VFC-PM10" />
    <attribute name="ebas_organization" value="EG01L, Egyptian Meteorological Authority, EMA, , El Khalifa El Maamoun St., Kobry El Koba, , Cairo, Egypt" />
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    <attribute name="ebas_framework_description" value="&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="Markus Fiebig" />
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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 framework: GAW-WDCA." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="PM10" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
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    <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_pm10_mass" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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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="_CoordinateAxisType" value="Time" />
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