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                    <gco:CharacterString>Email: alex.zhang@noaa.gov</gco:CharacterString>
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                        <gmd:URL>http://www.gfdl.noaa.gov</gmd:URL>
                      </gmd:linkage>
                    </gmd:CI_OnlineResource>
                  </gmd:onlineResource>
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                    <gco:CharacterString>Email: yujin.zeng@noaa.gov</gco:CharacterString>
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        <gco:CharacterString>These data include the subset used by IPCC AR6 WGI authors of the datasets originally published in ESGF for 'CMIP6.AerChemMIP.NOAA-GFDL.GFDL-ESM4' with the full Data Reference Syntax following the template 'mip_era.activity_id.institution_id.source_id.experiment_id.member_id.table_id.variable_id.grid_label.version'. The GFDL-ESM4 climate model, released in 2018, includes the following components: aerosol: interactive, atmos: GFDL-AM4.1 (Cubed-sphere (c96) - 1 degree nominal horizontal resolution; 360 x 180 longitude/latitude; 49 levels; top level 1 Pa), atmosChem: GFDL-ATMCHEM4.1 (full atmospheric chemistry), land: GFDL-LM4.1, landIce: GFDL-LM4.1, ocean: GFDL-OM4p5 (GFDL-MOM6, tripolar - nominal 0.5 deg; 720 x 576 longitude/latitude; 75 levels; top grid cell 0-2 m), ocnBgchem: GFDL-COBALTv2, seaIce: GFDL-SIM4p5 (GFDL-SIS2.0, tripolar - nominal 0.5 deg; 720 x 576 longitude/latitude; 5 layers; 5 thickness categories). The model was run by the National Oceanic and Atmospheric Administration, Geophysical Fluid Dynamics Laboratory, Princeton, NJ 08540, USA (NOAA-GFDL) in native nominal resolutions: aerosol: 100 km, atmos: 100 km, atmosChem: 100 km, land: 100 km, landIce: 100 km, ocean: 50 km, ocnBgchem: 50 km, seaIce: 50 km.</gco:CharacterString>
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            <gmd:CI_Contact>
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                <gmd:CI_OnlineResource>
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                    <gmd:URL>http://www.gfdl.noaa.gov</gmd:URL>
                  </gmd:linkage>
                </gmd:CI_OnlineResource>
              </gmd:onlineResource>
            </gmd:CI_Contact>
          </gmd:contactInfo>
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            <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="pointOfContact">pointOfContact</gmd:CI_RoleCode>
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            <gmd:EX_GeographicBoundingBox>
              <gmd:westBoundLongitude>
                <gco:Decimal>0.0</gco:Decimal>
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  </gmd:identificationInfo>
  <gmd:contentInfo>
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      <gmd:attributeDescription>
        <gco:RecordType>mass_fraction_of_sulfate_dry_aerosol_particles_in_air</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType gco:nilReason="unknown" />
      <gmd:dimension uuidref="temporal_extent_20150116_20991216">
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Comment: Dry mass of sulfate (SO4) in aerosol particles as a fraction of air mass.
Used for mip era 'CMIP6' in CMOR MIP table(s): Table AERmon, provided in frequency(s): mon, and for Realm(s): aerosol.
Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg kg-1</gco:CharacterString>
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          </gmd:descriptor>
        </gmd:MD_RangeDimension>
      </gmd:dimension>
    </gmd:MD_CoverageDescription>
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    <gmd:MD_CoverageDescription>
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        <gco:RecordType>mole_fraction_of_ozone_in_air</gco:RecordType>
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      <gmd:contentType gco:nilReason="unknown" />
      <gmd:dimension uuidref="temporal_extent_20150116_20991216">
        <gmd:MD_RangeDimension>
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            <gco:CharacterString>Mole fraction is used in the construction mole_fraction_of_X_in_Y, where X is a material constituent of Y. [CF-Standard Name]; unit: mol mol-1</gco:CharacterString>
          </gmd:descriptor>
        </gmd:MD_RangeDimension>
      </gmd:dimension>
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  <gmd:contentInfo>
    <gmd:MD_CoverageDescription>
      <gmd:attributeDescription>
        <gco:RecordType>mass_fraction_of_dust_dry_aerosol_particles_in_air</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType gco:nilReason="unknown" />
      <gmd:dimension uuidref="temporal_extent_20150116_20991216">
        <gmd:MD_RangeDimension>
          <gmd:descriptor>
            <gco:CharacterString>Dust Aerosol Mass Mixing Ratio
Comment: Dry mass fraction of dust aerosol particles in air.
Used for mip era 'CMIP6' in CMOR MIP table(s): Table AERmon, provided in frequency(s): mon, and for Realm(s): aerosol.
Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg kg-1</gco:CharacterString>
          </gmd:descriptor>
        </gmd:MD_RangeDimension>
      </gmd:dimension>
    </gmd:MD_CoverageDescription>
  </gmd:contentInfo>
  <gmd:contentInfo>
    <gmd:MD_CoverageDescription>
      <gmd:attributeDescription>
        <gco:RecordType>mass_fraction_of_pm2p5_dry_aerosol_particles_in_air</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType gco:nilReason="unknown" />
      <gmd:dimension uuidref="temporal_extent_20150116_20991216">
        <gmd:MD_RangeDimension>
          <gmd:descriptor>
            <gco:CharacterString>PM2.5 Mass Mixing Ratio
Comment: Mass fraction atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 2.5 micrometers
Used for mip era 'CMIP6' in CMOR MIP table(s): Table AERmon, provided in frequency(s): mon, and for Realm(s): aerosol.
Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg kg-1</gco:CharacterString>
          </gmd:descriptor>
        </gmd:MD_RangeDimension>
      </gmd:dimension>
    </gmd:MD_CoverageDescription>
  </gmd:contentInfo>
  <gmd:contentInfo>
    <gmd:MD_CoverageDescription>
      <gmd:attributeDescription>
        <gco:RecordType>mass_fraction_of_elemental_carbon_dry_aerosol_particles_in_air</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType gco:nilReason="unknown" />
      <gmd:dimension uuidref="temporal_extent_20150116_20591216">
        <gmd:MD_RangeDimension>
          <gmd:descriptor>
            <gco:CharacterString>Elemental Carbon Mass Mixing Ratio
Comment: Dry mass fraction of black carbon aerosol particles in air.
Used for mip era 'CMIP6' in CMOR MIP table(s): Table AERmon, provided in frequency(s): mon, and for Realm(s): aerosol.
Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg kg-1</gco:CharacterString>
          </gmd:descriptor>
        </gmd:MD_RangeDimension>
      </gmd:dimension>
    </gmd:MD_CoverageDescription>
  </gmd:contentInfo>
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    <gmd:MD_CoverageDescription>
      <gmd:attributeDescription>
        <gco:RecordType>mass_fraction_of_sea_salt_dry_aerosol_particles_in_air</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType gco:nilReason="unknown" />
      <gmd:dimension uuidref="temporal_extent_20150116_20591216">
        <gmd:MD_RangeDimension>
          <gmd:descriptor>
            <gco:CharacterString>sea-salt aerosol Mass Mixing Ratio
Comment: Mass fraction in the atmosphere of sea salt aerosol (dry mass).
Used for mip era 'CMIP6' in CMOR MIP table(s): Table AERmon, provided in frequency(s): mon, and for Realm(s): aerosol.
Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg kg-1</gco:CharacterString>
          </gmd:descriptor>
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    </gmd:MD_CoverageDescription>
  </gmd:contentInfo>
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    <gmd:MD_CoverageDescription>
      <gmd:attributeDescription>
        <gco:RecordType>mass_fraction_of_dust_dry_aerosol_particles_in_air</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType gco:nilReason="unknown" />
      <gmd:dimension uuidref="temporal_extent_20150116_20591216">
        <gmd:MD_RangeDimension>
          <gmd:descriptor>
            <gco:CharacterString>Dust Aerosol Mass Mixing Ratio
Comment: Dry mass fraction of dust aerosol particles in air.
Used for mip era 'CMIP6' in CMOR MIP table(s): Table AERmon, provided in frequency(s): mon, and for Realm(s): aerosol.
Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg kg-1</gco:CharacterString>
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    <gmd:MD_CoverageDescription>
      <gmd:attributeDescription>
        <gco:RecordType>toa_outgoing_longwave_flux</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType gco:nilReason="unknown" />
      <gmd:dimension uuidref="temporal_extent_18500116_20141216">
        <gmd:MD_RangeDimension>
          <gmd:descriptor>
            <gco:CharacterString>"longwave" means longwave radiation. "toa" means top of atmosphere. The TOA outgoing longwave flux is the upwelling thermal radiative flux, often called the "outgoing longwave radiation" or "OLR". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: W m-2</gco:CharacterString>
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      </gmd:dimension>
    </gmd:MD_CoverageDescription>
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    <gmd:MD_CoverageDescription>
      <gmd:attributeDescription>
        <gco:RecordType>mass_fraction_of_sea_salt_dry_aerosol_particles_in_air</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType gco:nilReason="unknown" />
      <gmd:dimension uuidref="temporal_extent_20150116_20991216">
        <gmd:MD_RangeDimension>
          <gmd:descriptor>
            <gco:CharacterString>sea-salt aerosol Mass Mixing Ratio
Comment: Mass fraction in the atmosphere of sea salt aerosol (dry mass).
Used for mip era 'CMIP6' in CMOR MIP table(s): Table AERmon, provided in frequency(s): mon, and for Realm(s): aerosol.
Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg kg-1</gco:CharacterString>
          </gmd:descriptor>
        </gmd:MD_RangeDimension>
      </gmd:dimension>
    </gmd:MD_CoverageDescription>
  </gmd:contentInfo>
  <gmd:contentInfo>
    <gmd:MD_CoverageDescription>
      <gmd:attributeDescription>
        <gco:RecordType>mass_fraction_of_particulate_organic_matter_dry_aerosol_particles_in_air</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType gco:nilReason="unknown" />
      <gmd:dimension uuidref="temporal_extent_20150116_20591216">
        <gmd:MD_RangeDimension>
          <gmd:descriptor>
            <gco:CharacterString>Total Organic Aerosol Mass Mixing Ratio
Comment: We recommend a scale factor of POM=1.4*OC, unless your model has more detailed info available.
Used for mip era 'CMIP6' in CMOR MIP table(s): Table AERmon, provided in frequency(s): mon, and for Realm(s): aerosol.
Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg kg-1</gco:CharacterString>
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  </gmd:contentInfo>
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      <gmd:attributeDescription>
        <gco:RecordType>mass_fraction_of_particulate_organic_matter_dry_aerosol_particles_in_air</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType gco:nilReason="unknown" />
      <gmd:dimension uuidref="temporal_extent_20150116_20991216">
        <gmd:MD_RangeDimension>
          <gmd:descriptor>
            <gco:CharacterString>Total Organic Aerosol Mass Mixing Ratio
Comment: We recommend a scale factor of POM=1.4*OC, unless your model has more detailed info available.
Used for mip era 'CMIP6' in CMOR MIP table(s): Table AERmon, provided in frequency(s): mon, and for Realm(s): aerosol.
Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg kg-1</gco:CharacterString>
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    </gmd:MD_CoverageDescription>
  </gmd:contentInfo>
  <gmd:contentInfo>
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      <gmd:attributeDescription>
        <gco:RecordType>air_temperature</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType gco:nilReason="unknown" />
      <gmd:dimension uuidref="temporal_extent_20150116_20991216">
        <gmd:MD_RangeDimension>
          <gmd:descriptor>
            <gco:CharacterString>Air temperature is the bulk temperature of the air, not the surface (skin) temperature. [CF-Standard Name]; unit: K</gco:CharacterString>
          </gmd:descriptor>
        </gmd:MD_RangeDimension>
      </gmd:dimension>
    </gmd:MD_CoverageDescription>
  </gmd:contentInfo>
  <gmd:contentInfo>
    <gmd:MD_CoverageDescription>
      <gmd:attributeDescription>
        <gco:RecordType>mass_fraction_of_elemental_carbon_dry_aerosol_particles_in_air</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType gco:nilReason="unknown" />
      <gmd:dimension uuidref="temporal_extent_20150116_20991216">
        <gmd:MD_RangeDimension>
          <gmd:descriptor>
            <gco:CharacterString>Elemental Carbon Mass Mixing Ratio
Comment: Dry mass fraction of black carbon aerosol particles in air.
Used for mip era 'CMIP6' in CMOR MIP table(s): Table AERmon, provided in frequency(s): mon, and for Realm(s): aerosol.
Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg kg-1</gco:CharacterString>
          </gmd:descriptor>
        </gmd:MD_RangeDimension>
      </gmd:dimension>
    </gmd:MD_CoverageDescription>
  </gmd:contentInfo>
  <gmd:contentInfo>
    <gmd:MD_CoverageDescription>
      <gmd:attributeDescription>
        <gco:RecordType>mole_fraction_of_ozone_in_air</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType gco:nilReason="unknown" />
      <gmd:dimension uuidref="temporal_extent_20150116_20591216">
        <gmd:MD_RangeDimension>
          <gmd:descriptor>
            <gco:CharacterString>Mole fraction is used in the construction mole_fraction_of_X_in_Y, where X is a material constituent of Y. [CF-Standard Name]; unit: mol mol-1</gco:CharacterString>
          </gmd:descriptor>
        </gmd:MD_RangeDimension>
      </gmd:dimension>
    </gmd:MD_CoverageDescription>
  </gmd:contentInfo>
  <gmd:contentInfo>
    <gmd:MD_CoverageDescription>
      <gmd:attributeDescription>
        <gco:RecordType>mass_fraction_of_sulfate_dry_aerosol_particles_in_air</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType gco:nilReason="unknown" />
      <gmd:dimension uuidref="temporal_extent_20150116_20591216">
        <gmd:MD_RangeDimension>
          <gmd:descriptor>
            <gco:CharacterString>Aerosol Sulfate Mass Mixing Ratio
Comment: Dry mass of sulfate (SO4) in aerosol particles as a fraction of air mass.
Used for mip era 'CMIP6' in CMOR MIP table(s): Table AERmon, provided in frequency(s): mon, and for Realm(s): aerosol.
Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg kg-1</gco:CharacterString>
          </gmd:descriptor>
        </gmd:MD_RangeDimension>
      </gmd:dimension>
    </gmd:MD_CoverageDescription>
  </gmd:contentInfo>
  <gmd:contentInfo>
    <gmd:MD_CoverageDescription>
      <gmd:attributeDescription>
        <gco:RecordType>air_temperature</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType gco:nilReason="unknown" />
      <gmd:dimension uuidref="temporal_extent_18500116_20141216">
        <gmd:MD_RangeDimension>
          <gmd:descriptor>
            <gco:CharacterString>Air temperature is the bulk temperature of the air, not the surface (skin) temperature. [CF-Standard Name]; unit: K</gco:CharacterString>
          </gmd:descriptor>
        </gmd:MD_RangeDimension>
      </gmd:dimension>
    </gmd:MD_CoverageDescription>
  </gmd:contentInfo>
  <gmd:contentInfo>
    <gmd:MD_CoverageDescription>
      <gmd:attributeDescription>
        <gco:RecordType>toa_outgoing_shortwave_flux</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType gco:nilReason="unknown" />
      <gmd:dimension uuidref="temporal_extent_18500116_20141216">
        <gmd:MD_RangeDimension>
          <gmd:descriptor>
            <gco:CharacterString>"shortwave" means shortwave radiation. "toa" means top of atmosphere. The TOA outgoing shortwave flux is the reflected and scattered solar radiative flux i.e. the "upwelling" TOA shortwave flux, sometimes called the "outgoing shortwave radiation" or "OSR". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: W m-2</gco:CharacterString>
          </gmd:descriptor>
        </gmd:MD_RangeDimension>
      </gmd:dimension>
    </gmd:MD_CoverageDescription>
  </gmd:contentInfo>
  <gmd:distributionInfo>
    <gmd:MD_Distribution>
      <gmd:distributionFormat>
        <gmd:MD_Format>
          <gmd:name>
            <gco:CharacterString>NetCDF</gco:CharacterString>
          </gmd:name>
          <gmd:version gco:nilReason="unknown" />
        </gmd:MD_Format>
      </gmd:distributionFormat>
      <gmd:transferOptions>
        <gmd:MD_DigitalTransferOptions>
          <gmd:transferSize>
            <gco:Real>86446</gco:Real>
          </gmd:transferSize>
          <gmd:onLine>
            <gmd:CI_OnlineResource>
              <gmd:linkage>
                <gmd:URL>https://www.wdc-climate.de/ui/entry?acronym=C6ACNGGFE</gmd:URL>
              </gmd:linkage>
              <gmd:function>
                <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</gmd:CI_OnLineFunctionCode>
              </gmd:function>
            </gmd:CI_OnlineResource>
          </gmd:onLine>
        </gmd:MD_DigitalTransferOptions>
      </gmd:transferOptions>
    </gmd:MD_Distribution>
  </gmd:distributionInfo>
  <gmd:dataQualityInfo>
    <gmd:DQ_DataQuality>
      <gmd:scope>
        <gmd:DQ_Scope>
          <gmd:level>
            <gmd:MD_ScopeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_ScopeCode" codeListValue="collection">collection</gmd:MD_ScopeCode>
          </gmd:level>
        </gmd:DQ_Scope>
      </gmd:scope>
    </gmd:DQ_DataQuality>
  </gmd:dataQualityInfo>
</gmd:MD_Metadata>

