<gmi:MI_Metadata xmlns:gmi="http://www.isotc211.org/2005/gmi" xmlns:gco="http://www.isotc211.org/2005/gco" xmlns:gmd="http://www.isotc211.org/2005/gmd" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:gmx="http://www.isotc211.org/2005/gmx" xmlns:gsr="http://www.isotc211.org/2005/gsr" xmlns:gss="http://www.isotc211.org/2005/gss" xmlns:gts="http://www.isotc211.org/2005/gts" xmlns:srv="http://www.isotc211.org/2005/srv" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.isotc211.org/2005/gmi https://data.noaa.gov/resources/iso19139/schema.xsd" uuid="954938ac-7088-4ae3-8985-67ac9f469aae">
  <gmd:fileIdentifier>
    <gco:CharacterString>gov.noaa.nodc:9400165</gco:CharacterString>
  </gmd:fileIdentifier>
  <gmd:language>
    <gmd:LanguageCode codeList="http://www.loc.gov/standards/iso639-2/php/code_list.php" codeListValue="eng">eng</gmd:LanguageCode>
  </gmd:language>
  <gmd:characterSet>
    <gmd:MD_CharacterSetCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_CharacterSetCode" codeListValue="utf8">utf8</gmd:MD_CharacterSetCode>
  </gmd:characterSet>
  <gmd:hierarchyLevel>
    <gmd:MD_ScopeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_ScopeCode" codeListValue="dataset">dataset</gmd:MD_ScopeCode>
  </gmd:hierarchyLevel>
  <gmd:contact>
    <gmd:CI_ResponsibleParty>
      <gmd:organisationName>
        <gco:CharacterString>NOAA National Centers for Environmental Information</gco:CharacterString>
      </gmd:organisationName>
      <gmd:contactInfo>
        <gmd:CI_Contact>
          <gmd:address>
            <gmd:CI_Address>
              <gmd:electronicMailAddress>
                <gco:CharacterString>ncei.info@noaa.gov</gco:CharacterString>
              </gmd:electronicMailAddress>
            </gmd:CI_Address>
          </gmd:address>
          <gmd:onlineResource>
            <gmd:CI_OnlineResource>
              <gmd:linkage>
                <gmd:URL>https://www.ncei.noaa.gov/contact</gmd:URL>
              </gmd:linkage>
              <gmd:protocol>
                <gco:CharacterString>HTTPS</gco:CharacterString>
              </gmd:protocol>
              <gmd:name>
                <gco:CharacterString>NOAA Contact Information</gco:CharacterString>
              </gmd:name>
              <gmd:description>
                <gco:CharacterString>Information for contacts at NCEI.</gco:CharacterString>
              </gmd:description>
              <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:onlineResource>
        </gmd:CI_Contact>
      </gmd:contactInfo>
      <gmd:role>
        <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="custodian">custodian</gmd:CI_RoleCode>
      </gmd:role>
    </gmd:CI_ResponsibleParty>
  </gmd:contact>
  <gmd:dateStamp>
    <gco:DateTime>2026-07-28T13:48:32Z</gco:DateTime>
  </gmd:dateStamp>
  <gmd:metadataStandardName>
    <gco:CharacterString>ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data</gco:CharacterString>
  </gmd:metadataStandardName>
  <gmd:metadataStandardVersion>
    <gco:CharacterString>ISO 19115-2:2009(E)</gco:CharacterString>
  </gmd:metadataStandardVersion>
  <gmd:identificationInfo>
    <gmd:MD_DataIdentification>
      <gmd:citation>
        <gmd:CI_Citation>
          <gmd:title>
            <gco:CharacterString>Fugacity of carbon dioxide and other variables collected from Surface underway observations using carbon dioxide (CO2) gas analyzer, showerhead equilibrator and other instruments from HUDSON, KNORR and others in the Alboran Sea, Arabian Sea and others from 1977-11-07 to 1990-04-16 (NCEI Accession 9400165)</gco:CharacterString>
          </gmd:title>
          <gmd:date>
            <gmd:CI_Date>
              <gmd:date>
                <gco:Date>2002-11-19</gco:Date>
              </gmd:date>
              <gmd:dateType>
                <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication">publication</gmd:CI_DateTypeCode>
              </gmd:dateType>
            </gmd:CI_Date>
          </gmd:date>
          <gmd:date>
            <gmd:CI_Date>
              <gmd:date>
                <gco:Date>2017-01-05</gco:Date>
              </gmd:date>
              <gmd:dateType>
                <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision">revision</gmd:CI_DateTypeCode>
              </gmd:dateType>
            </gmd:CI_Date>
          </gmd:date>
          <gmd:date>
            <gmd:CI_Date>
              <gmd:date>
                <gco:Date>1994</gco:Date>
              </gmd:date>
              <gmd:dateType>
                <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="creation">creation</gmd:CI_DateTypeCode>
              </gmd:dateType>
            </gmd:CI_Date>
          </gmd:date>
          <gmd:edition gco:nilReason="inapplicable" />
          <gmd:identifier>
            <gmd:MD_Identifier>
              <gmd:authority>
                <gmd:CI_Citation>
                  <gmd:title>
                    <gco:CharacterString>International DOI Foundation (IDF)</gco:CharacterString>
                  </gmd:title>
                  <gmd:date gco:nilReason="inapplicable" />
                </gmd:CI_Citation>
              </gmd:authority>
              <gmd:code>
                <gmx:Anchor xlink:href="https://doi.org/10.3334/cdiac/otg.ndp044" xlink:actuate="onRequest" xlink:title="DOI">10.3334/cdiac/otg.ndp044</gmx:Anchor>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmd:identifier>
          <gmd:identifier>
            <gmd:MD_Identifier>
              <gmd:authority>
                <gmd:CI_Citation>
                  <gmd:title>
                    <gco:CharacterString>NOAA National Centers for Environmental Information</gco:CharacterString>
                  </gmd:title>
                  <gmd:date gco:nilReason="inapplicable" />
                </gmd:CI_Citation>
              </gmd:authority>
              <gmd:code>
                <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/accession/9400165" xlink:actuate="onRequest" xlink:title="NCEI Dataset ID">gov.noaa.nodc:9400165</gmx:Anchor>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmd:identifier>
          <gmd:identifier>
            <gmd:MD_Identifier>
              <gmd:authority>
                <gmd:CI_Citation>
                  <gmd:title>
                    <gco:CharacterString>NCEI Archive Management System</gco:CharacterString>
                  </gmd:title>
                  <gmd:date gco:nilReason="inapplicable" />
                </gmd:CI_Citation>
              </gmd:authority>
              <gmd:code>
                <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/accession/9400165" xlink:actuate="onRequest" xlink:title="NCEI Accession ID">9400165</gmx:Anchor>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmd:identifier>
          <gmd:citedResponsibleParty>
            <gmd:CI_ResponsibleParty>
              <gmd:organisationName>
                <gmx:Anchor xlink:href="https://ror.org/04r0wrp59" xlink:actuate="onRequest">NOAA National Centers for Environmental Information</gmx:Anchor>
              </gmd:organisationName>
              <gmd:contactInfo>
                <gmd:CI_Contact>
                  <gmd:address>
                    <gmd:CI_Address>
                      <gmd:electronicMailAddress>
                        <gco:CharacterString>ncei.info@noaa.gov</gco:CharacterString>
                      </gmd:electronicMailAddress>
                    </gmd:CI_Address>
                  </gmd:address>
                  <gmd:onlineResource>
                    <gmd:CI_OnlineResource>
                      <gmd:linkage>
                        <gmd:URL>https://www.ncei.noaa.gov/contact</gmd:URL>
                      </gmd:linkage>
                      <gmd:protocol>
                        <gco:CharacterString>HTTPS</gco:CharacterString>
                      </gmd:protocol>
                      <gmd:name>
                        <gco:CharacterString>NCEI Contact Information</gco:CharacterString>
                      </gmd:name>
                      <gmd:description>
                        <gco:CharacterString>Information for contacts at NCEI.</gco:CharacterString>
                      </gmd:description>
                      <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:onlineResource>
                </gmd:CI_Contact>
              </gmd:contactInfo>
              <gmd:role>
                <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="publisher">publisher</gmd:CI_RoleCode>
              </gmd:role>
            </gmd:CI_ResponsibleParty>
          </gmd:citedResponsibleParty>
          <gmd:citedResponsibleParty>
            <gmd:CI_ResponsibleParty>
              <gmd:individualName>
                <gmx:Anchor xlink:href="https://orcid.org/0009-0008-0874-270X" xlink:actuate="onRequest">Alex Kozyr</gmx:Anchor>
              </gmd:individualName>
              <gmd:organisationName>
                <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/2149" xlink:actuate="onRequest">Cooperative Institute for Satellite Earth System Studies (CISESS)</gmx:Anchor>
              </gmd:organisationName>
              <gmd:contactInfo>
                <gmd:CI_Contact>
                  <gmd:address>
                    <gmd:CI_Address>
                      <gmd:electronicMailAddress>
                        <gco:CharacterString>Alex.Kozyr@noaa.gov</gco:CharacterString>
                      </gmd:electronicMailAddress>
                    </gmd:CI_Address>
                  </gmd:address>
                  <gmd:onlineResource>
                    <gmd:CI_OnlineResource>
                      <gmd:linkage>
                        <gmd:URL>https://cisess.umd.edu/</gmd:URL>
                      </gmd:linkage>
                      <gmd:protocol>
                        <gco:CharacterString>HTTPS</gco:CharacterString>
                      </gmd:protocol>
                      <gmd:name>
                        <gco:CharacterString>Cooperative Institute for Satellite Earth System Studies (CISESS) website</gco:CharacterString>
                      </gmd:name>
                      <gmd:description>
                        <gco:CharacterString>Institution web page</gco:CharacterString>
                      </gmd:description>
                      <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:onlineResource>
                </gmd:CI_Contact>
              </gmd:contactInfo>
              <gmd:role>
                <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="resourceProvider">resourceProvider</gmd:CI_RoleCode>
              </gmd:role>
            </gmd:CI_ResponsibleParty>
          </gmd:citedResponsibleParty>
          <gmd:citedResponsibleParty>
            <gmd:CI_ResponsibleParty>
              <gmd:organisationName>
                <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/179" xlink:actuate="onRequest">Carbon Dioxide Information Analysis Center (CDIAC)</gmx:Anchor>
              </gmd:organisationName>
              <gmd:role>
                <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="resourceProvider">resourceProvider</gmd:CI_RoleCode>
              </gmd:role>
            </gmd:CI_ResponsibleParty>
          </gmd:citedResponsibleParty>
          <gmd:citedResponsibleParty>
            <gmd:CI_ResponsibleParty>
              <gmd:individualName>
                <gmx:Anchor xlink:href="https://orcid.org/0000-0001-9551-7739" xlink:actuate="onRequest">Ray Weiss</gmx:Anchor>
              </gmd:individualName>
              <gmd:organisationName>
                <gmx:Anchor xlink:href="https://ror.org/04v7hvq31" xlink:actuate="onRequest">Scripps Institution of Oceanography (SIO)</gmx:Anchor>
              </gmd:organisationName>
              <gmd:contactInfo>
                <gmd:CI_Contact>
                  <gmd:address>
                    <gmd:CI_Address>
                      <gmd:electronicMailAddress>
                        <gco:CharacterString>scrippsnews@ucsd.edu</gco:CharacterString>
                      </gmd:electronicMailAddress>
                    </gmd:CI_Address>
                  </gmd:address>
                  <gmd:onlineResource>
                    <gmd:CI_OnlineResource>
                      <gmd:linkage>
                        <gmd:URL>https://scripps.ucsd.edu/</gmd:URL>
                      </gmd:linkage>
                      <gmd:protocol>
                        <gco:CharacterString>HTTPS</gco:CharacterString>
                      </gmd:protocol>
                      <gmd:name>
                        <gco:CharacterString>Scripps Institution of Oceanography (SIO) website</gco:CharacterString>
                      </gmd:name>
                      <gmd:description>
                        <gco:CharacterString>Institution web page</gco:CharacterString>
                      </gmd:description>
                      <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:onlineResource>
                </gmd:CI_Contact>
              </gmd:contactInfo>
              <gmd:role>
                <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="principalInvestigator">principalInvestigator</gmd:CI_RoleCode>
              </gmd:role>
            </gmd:CI_ResponsibleParty>
          </gmd:citedResponsibleParty>
          <gmd:citedResponsibleParty>
            <gmd:CI_ResponsibleParty>
              <gmd:individualName>
                <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/person/details/1843" xlink:actuate="onRequest">Peter K. Salameh</gmx:Anchor>
              </gmd:individualName>
              <gmd:organisationName>
                <gmx:Anchor xlink:href="https://ror.org/04v7hvq31" xlink:actuate="onRequest">Scripps Institution of Oceanography (SIO)</gmx:Anchor>
              </gmd:organisationName>
              <gmd:contactInfo>
                <gmd:CI_Contact>
                  <gmd:onlineResource>
                    <gmd:CI_OnlineResource>
                      <gmd:linkage>
                        <gmd:URL>https://scripps.ucsd.edu/</gmd:URL>
                      </gmd:linkage>
                      <gmd:protocol>
                        <gco:CharacterString>HTTPS</gco:CharacterString>
                      </gmd:protocol>
                      <gmd:name>
                        <gco:CharacterString>Scripps Institution of Oceanography (SIO) website</gco:CharacterString>
                      </gmd:name>
                      <gmd:description>
                        <gco:CharacterString>Institution web page</gco:CharacterString>
                      </gmd:description>
                      <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:onlineResource>
                </gmd:CI_Contact>
              </gmd:contactInfo>
              <gmd:role>
                <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="collaborator">collaborator</gmd:CI_RoleCode>
              </gmd:role>
            </gmd:CI_ResponsibleParty>
          </gmd:citedResponsibleParty>
          <gmd:citedResponsibleParty>
            <gmd:CI_ResponsibleParty>
              <gmd:individualName>
                <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/person/details/1947" xlink:actuate="onRequest">Frederick A. Van Woy</gmx:Anchor>
              </gmd:individualName>
              <gmd:organisationName>
                <gmx:Anchor xlink:href="https://ror.org/04v7hvq31" xlink:actuate="onRequest">Scripps Institution of Oceanography (SIO)</gmx:Anchor>
              </gmd:organisationName>
              <gmd:contactInfo>
                <gmd:CI_Contact>
                  <gmd:onlineResource>
                    <gmd:CI_OnlineResource>
                      <gmd:linkage>
                        <gmd:URL>https://scripps.ucsd.edu/</gmd:URL>
                      </gmd:linkage>
                      <gmd:protocol>
                        <gco:CharacterString>HTTPS</gco:CharacterString>
                      </gmd:protocol>
                      <gmd:name>
                        <gco:CharacterString>Scripps Institution of Oceanography (SIO) website</gco:CharacterString>
                      </gmd:name>
                      <gmd:description>
                        <gco:CharacterString>Institution web page</gco:CharacterString>
                      </gmd:description>
                      <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:onlineResource>
                </gmd:CI_Contact>
              </gmd:contactInfo>
              <gmd:role>
                <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="collaborator">collaborator</gmd:CI_RoleCode>
              </gmd:role>
            </gmd:CI_ResponsibleParty>
          </gmd:citedResponsibleParty>
          <gmd:citedResponsibleParty>
            <gmd:CI_ResponsibleParty>
              <gmd:individualName>
                <gmx:Anchor xlink:href="https://orcid.org/0000-0001-9551-7739" xlink:actuate="onRequest">Weiss, Ray F.</gmx:Anchor>
              </gmd:individualName>
              <gmd:organisationName>
                <gmx:Anchor xlink:href="https://ror.org/04v7hvq31" xlink:actuate="onRequest">Scripps Institution of Oceanography</gmx:Anchor>
              </gmd:organisationName>
              <gmd:contactInfo>
                <gmd:CI_Contact>
                  <gmd:onlineResource>
                    <gmd:CI_OnlineResource>
                      <gmd:linkage>
                        <gmd:URL>https://scripps.ucsd.edu/</gmd:URL>
                      </gmd:linkage>
                      <gmd:protocol>
                        <gco:CharacterString>HTTPS</gco:CharacterString>
                      </gmd:protocol>
                      <gmd:name>
                        <gco:CharacterString>Scripps Institution of Oceanography (SIO) website</gco:CharacterString>
                      </gmd:name>
                      <gmd:description>
                        <gco:CharacterString>Institution web page</gco:CharacterString>
                      </gmd:description>
                      <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:onlineResource>
                </gmd:CI_Contact>
              </gmd:contactInfo>
              <gmd:role>
                <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="author">author</gmd:CI_RoleCode>
              </gmd:role>
            </gmd:CI_ResponsibleParty>
          </gmd:citedResponsibleParty>
          <gmd:citedResponsibleParty>
            <gmd:CI_ResponsibleParty>
              <gmd:individualName>
                <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/person/details/1947" xlink:actuate="onRequest">Van Woy, Frederick A.</gmx:Anchor>
              </gmd:individualName>
              <gmd:organisationName>
                <gmx:Anchor xlink:href="https://ror.org/04v7hvq31" xlink:actuate="onRequest">Scripps Institution of Oceanography</gmx:Anchor>
              </gmd:organisationName>
              <gmd:contactInfo>
                <gmd:CI_Contact>
                  <gmd:onlineResource>
                    <gmd:CI_OnlineResource>
                      <gmd:linkage>
                        <gmd:URL>https://scripps.ucsd.edu/</gmd:URL>
                      </gmd:linkage>
                      <gmd:protocol>
                        <gco:CharacterString>HTTPS</gco:CharacterString>
                      </gmd:protocol>
                      <gmd:name>
                        <gco:CharacterString>Scripps Institution of Oceanography (SIO) website</gco:CharacterString>
                      </gmd:name>
                      <gmd:description>
                        <gco:CharacterString>Institution web page</gco:CharacterString>
                      </gmd:description>
                      <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:onlineResource>
                </gmd:CI_Contact>
              </gmd:contactInfo>
              <gmd:role>
                <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="author">author</gmd:CI_RoleCode>
              </gmd:role>
            </gmd:CI_ResponsibleParty>
          </gmd:citedResponsibleParty>
          <gmd:citedResponsibleParty>
            <gmd:CI_ResponsibleParty>
              <gmd:individualName>
                <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/person/details/1843" xlink:actuate="onRequest">Salameh, Peter K.</gmx:Anchor>
              </gmd:individualName>
              <gmd:organisationName>
                <gmx:Anchor xlink:href="https://ror.org/04v7hvq31" xlink:actuate="onRequest">Scripps Institution of Oceanography</gmx:Anchor>
              </gmd:organisationName>
              <gmd:contactInfo>
                <gmd:CI_Contact>
                  <gmd:onlineResource>
                    <gmd:CI_OnlineResource>
                      <gmd:linkage>
                        <gmd:URL>https://scripps.ucsd.edu/</gmd:URL>
                      </gmd:linkage>
                      <gmd:protocol>
                        <gco:CharacterString>HTTPS</gco:CharacterString>
                      </gmd:protocol>
                      <gmd:name>
                        <gco:CharacterString>Scripps Institution of Oceanography (SIO) website</gco:CharacterString>
                      </gmd:name>
                      <gmd:description>
                        <gco:CharacterString>Institution web page</gco:CharacterString>
                      </gmd:description>
                      <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:onlineResource>
                </gmd:CI_Contact>
              </gmd:contactInfo>
              <gmd:role>
                <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="author">author</gmd:CI_RoleCode>
              </gmd:role>
            </gmd:CI_ResponsibleParty>
          </gmd:citedResponsibleParty>
          <gmd:citedResponsibleParty>
            <gmd:CI_ResponsibleParty>
              <gmd:organisationName>
                <gmx:Anchor xlink:href="https://ror.org/04v7hvq31" xlink:actuate="onRequest">Scripps Institution of Oceanography (SIO)</gmx:Anchor>
              </gmd:organisationName>
              <gmd:contactInfo>
                <gmd:CI_Contact>
                  <gmd:onlineResource>
                    <gmd:CI_OnlineResource>
                      <gmd:linkage>
                        <gmd:URL>https://scripps.ucsd.edu/</gmd:URL>
                      </gmd:linkage>
                      <gmd:protocol>
                        <gco:CharacterString>HTTPS</gco:CharacterString>
                      </gmd:protocol>
                      <gmd:name>
                        <gco:CharacterString>Scripps Institution of Oceanography (SIO) website</gco:CharacterString>
                      </gmd:name>
                      <gmd:description>
                        <gco:CharacterString>Institution web page</gco:CharacterString>
                      </gmd:description>
                      <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:onlineResource>
                </gmd:CI_Contact>
              </gmd:contactInfo>
              <gmd:role>
                <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="contributor">contributor</gmd:CI_RoleCode>
              </gmd:role>
            </gmd:CI_ResponsibleParty>
          </gmd:citedResponsibleParty>
          <gmd:presentationForm>
            <gmd:CI_PresentationFormCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_PresentationFormCode" codeListValue="tableDigital">tableDigital</gmd:CI_PresentationFormCode>
          </gmd:presentationForm>
        </gmd:CI_Citation>
      </gmd:citation>
      <gmd:abstract>
        <gco:CharacterString>This dataset includes surface underway, chemical, meteorological and physical data collected from HUDSON, KNORR, NOAA Ship MALCOLM BALDRIGE, MELVILLE, POLARSTERN, THOMAS G. THOMPSON and WECOMA in the Alboran Sea, Arabian Sea, Caribbean Sea, Coastal Waters of Southeast Alaska and British Columbia, Davis Strait, East China Sea (Tung Hai), Gulf of Aden, Gulf of Suez, Hawaiian Islands Humpback Whale National Marine Sanctuary, Indian Ocean, Inner Sea - West Coast Scotland, Labrador Sea, Mediterranean Sea, Mediterranean Sea - Eastern Basin, Mediterranean Sea - Western Basin, North Atlantic Ocean, North Greenland Sea, North Pacific Ocean, Norwegian Sea, Olympic Coast National Marine Sanctuary, Papahānaumokuākea Marine National Monument, Philippine Sea, Red Sea, Rio de la Plata, South Atlantic Ocean, South Pacific Ocean, Southern Oceans, Strait of Gibraltar and Tasman Sea from 1977-11-07 to 1990-04-16. These data include BAROMETRIC PRESSURE, fugacity of carbon dioxide - atmosphere, fugacity of carbon dioxide - water, SEA SURFACE TEMPERATURE and nitrous oxide (N2O). The instruments used to collect these data include Carbon dioxide (CO2) gas analyzer, Shower head chamber equilibrator for autonomous carbon dioxide (CO2) measurement and Thin film type equilibrator for autonomous carbon dioxide (CO2) measurement.

These data were collected by Ray F. Weiss of Scripps Institution of Oceanography (SIO) as part of the ANT V/3, Ant V/2, CGC-90 Leg 1, CGC-90 Leg 2, HUDSON 82-001 Leg 2, Hudson 82-001 Leg 1, INDOMED Leg 11A, INDOMED Leg 12, INDOMED Leg 15, INDOMED Leg 15A, INDOMED Leg 2, INDOMED Leg 3, INDOMED Leg 4, INDOMED Leg 5, NORPAX Leg 13, NORPAX Leg 15, NORPAX Leg 7, NORPAX Leg 9, NORPAX Transit, SAVE Leg 1, SAVE Leg 2, SAVE Leg 3, SAVE Leg 4, SAVE Leg 5, SAVE Leg 6, SAVE Transit, TPS24 Leg 1, TPS24 Leg 2, TPS47 Leg 1, TTO/NAS Leg 1, TTO/NAS Leg 2, TTO/NAS Leg 3, TTO/NAS Leg 4, TTO/NAS Leg 5, TTO/NAS Leg 6, TTO/NAS Leg 7, TTO/TAS Leg 1, TTO/TAS Leg 2, TTO/TAS Leg 3, ajax1 and underway ajax2 dataset. CDIAC associated the following cruise ID(s) with this dataset: ANT V/3 #32, Ajax 1 #26, Ajax 2 #27, Ant V/2 #31, CGC-90 Leg 1 #40, CGC-90 Leg 2 #41, Hudson 82-001 Leg 1 #21, Hudson 82-001 Leg 2 #22, INDOMED Leg 11A #5, INDOMED Leg 12 #6, INDOMED Leg 15 #7, INDOMED Leg 15A #8, INDOMED Leg 2 #1, INDOMED Leg 3 #2, INDOMED Leg 4 #3, INDOMED Leg 5 #4, NORPAX Leg 13 #12, NORPAX Leg 15 #13, NORPAX Leg 7 #10, NORPAX Leg 9 #11, NORPAX Transit #9, SAVE Leg 1 #34, SAVE Leg 2 #35, SAVE Leg 3 #36, SAVE Leg 4 #37, SAVE Leg 5 # 38, SAVE Leg 6 #39, SAVE Transit #33, TPS24 Leg 1 #28, TPS24 Leg 2 #29, TPS47 Leg 1 #30, TTO/NAS Leg 1 #14, TTO/NAS Leg 2 #15, TTO/NAS Leg 3 #16, TTO/NAS Leg 4 #17, TTO/NAS Leg 5 #18, TTO/NAS Leg 6 #19, TTO/NAS Leg 7 #20, TTO/TAS Leg 1 #23, TTO/TAS Leg 2 #24 and TTO/TAS Leg 3 #25.</gco:CharacterString>
      </gmd:abstract>
      <gmd:purpose>
        <gco:CharacterString>This dataset is available to the public for a wide variety of uses including scientific research and analysis.</gco:CharacterString>
      </gmd:purpose>
      <gmd:status>
        <gmd:MD_ProgressCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_ProgressCode" codeListValue="completed">completed</gmd:MD_ProgressCode>
      </gmd:status>
      <gmd:status>
        <gmd:MD_ProgressCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_ProgressCode" codeListValue="historicalArchive">historicalArchive</gmd:MD_ProgressCode>
      </gmd:status>
      <gmd:pointOfContact>
        <gmd:CI_ResponsibleParty>
          <gmd:organisationName>
            <gmx:Anchor xlink:href="https://ror.org/04r0wrp59" xlink:actuate="onRequest">NOAA National Centers for Environmental Information</gmx:Anchor>
          </gmd:organisationName>
          <gmd:contactInfo>
            <gmd:CI_Contact>
              <gmd:address>
                <gmd:CI_Address>
                  <gmd:electronicMailAddress>
                    <gco:CharacterString>ncei.info@noaa.gov</gco:CharacterString>
                  </gmd:electronicMailAddress>
                </gmd:CI_Address>
              </gmd:address>
              <gmd:onlineResource>
                <gmd:CI_OnlineResource>
                  <gmd:linkage>
                    <gmd:URL>https://www.ncei.noaa.gov/contact</gmd:URL>
                  </gmd:linkage>
                  <gmd:protocol>
                    <gco:CharacterString>HTTPS</gco:CharacterString>
                  </gmd:protocol>
                  <gmd:name>
                    <gco:CharacterString>NCEI Contact Information</gco:CharacterString>
                  </gmd:name>
                  <gmd:description>
                    <gco:CharacterString>Information for contacts at NCEI.</gco:CharacterString>
                  </gmd:description>
                  <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:onlineResource>
            </gmd:CI_Contact>
          </gmd:contactInfo>
          <gmd:role>
            <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="pointOfContact">pointOfContact</gmd:CI_RoleCode>
          </gmd:role>
        </gmd:CI_ResponsibleParty>
      </gmd:pointOfContact>
      <gmd:resourceMaintenance>
        <gmd:MD_MaintenanceInformation>
          <gmd:maintenanceAndUpdateFrequency>
            <gmd:MD_MaintenanceFrequencyCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_MaintenanceFrequencyCode" codeListValue="asNeeded">asNeeded</gmd:MD_MaintenanceFrequencyCode>
          </gmd:maintenanceAndUpdateFrequency>
          <gmd:maintenanceNote>
            <gco:CharacterString>NCEI Accession 9400165 was revised and a new version of the archival package was published. Updates to existing archival packages may provide additional files or replace obsolete files. The latest version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession. Please see journal.txt in the /about directory for additional details on changes made.</gco:CharacterString>
          </gmd:maintenanceNote>
        </gmd:MD_MaintenanceInformation>
      </gmd:resourceMaintenance>
      <gmd:graphicOverview>
        <gmd:MD_BrowseGraphic>
          <gmd:fileName>
            <gco:CharacterString>https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:9400165</gco:CharacterString>
          </gmd:fileName>
          <gmd:fileDescription>
            <gco:CharacterString>Preview graphic</gco:CharacterString>
          </gmd:fileDescription>
          <gmd:fileType>
            <gco:CharacterString>PNG</gco:CharacterString>
          </gmd:fileType>
        </gmd:MD_BrowseGraphic>
      </gmd:graphicOverview>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/accession/9400165" xlink:actuate="onRequest">9400165</gmx:Anchor>
          </gmd:keyword>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>NCEI ACCESSION NUMBER</gco:CharacterString>
              </gmd:title>
              <gmd:date>
                <gmd:CI_Date>
                  <gmd:date>
                    <gco:Date>2017-01-05</gco:Date>
                  </gmd:date>
                  <gmd:dateType>
                    <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication">publication</gmd:CI_DateTypeCode>
                  </gmd:dateType>
                </gmd:CI_Date>
              </gmd:date>
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/38" xlink:actuate="onRequest">BAROMETRIC PRESSURE</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/566" xlink:actuate="onRequest">nitrous oxide (N2O)</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/71" xlink:actuate="onRequest">Partial pressure (or fugacity) of carbon dioxide - atmosphere</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/70" xlink:actuate="onRequest">partial pressure of carbon dioxide - water</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/319" xlink:actuate="onRequest">SEA SURFACE TEMPERATURE</gmx:Anchor>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="theme">theme</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>NODC DATA TYPES THESAURUS</gco:CharacterString>
              </gmd:title>
              <gmd:date gco:nilReason="inapplicable" />
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/insttype/details/183" xlink:actuate="onRequest">carbon dioxide (CO2) gas analyzer</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/insttype/details/184" xlink:actuate="onRequest">showerhead equilibrator</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/insttype/details/204" xlink:actuate="onRequest">thin film type equilibrator for autonomous carbon dioxide (CO2) measurement</gmx:Anchor>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="instrument">instrument</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>NODC INSTRUMENT TYPES THESAURUS</gco:CharacterString>
              </gmd:title>
              <gmd:date gco:nilReason="inapplicable" />
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/obstype/details/3" xlink:actuate="onRequest">chemical</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/obstype/details/12" xlink:actuate="onRequest">meteorological</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/obstype/details/14" xlink:actuate="onRequest">physical</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/obstype/details/27" xlink:actuate="onRequest">surface underway</gmx:Anchor>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="theme">theme</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>NODC OBSERVATION TYPES THESAURUS</gco:CharacterString>
              </gmd:title>
              <gmd:date gco:nilReason="inapplicable" />
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/platform/details/918" xlink:actuate="onRequest">HUDSON</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/platform/details/7003" xlink:actuate="onRequest">NOAA Ship Malcolm Baldrige</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/platform/details/2548" xlink:actuate="onRequest">R/V Knorr</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/platform/details/2618" xlink:actuate="onRequest">R/V Melville</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/platform/details/3785" xlink:actuate="onRequest">R/V THOMAS G. THOMPSON</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/platform/details/3457" xlink:actuate="onRequest">R/V WECOMA</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/platform/details/226" xlink:actuate="onRequest">RV Polarstern</gmx:Anchor>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="platform">platform</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>NODC PLATFORM NAMES THESAURUS</gco:CharacterString>
              </gmd:title>
              <gmd:date gco:nilReason="inapplicable" />
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/983" xlink:actuate="onRequest">Scripps Institution of Oceanography</gmx:Anchor>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="dataCentre">dataCentre</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>NODC COLLECTING INSTITUTION NAMES THESAURUS</gco:CharacterString>
              </gmd:title>
              <gmd:date gco:nilReason="inapplicable" />
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/179" xlink:actuate="onRequest">Carbon Dioxide Information Analysis Center</gmx:Anchor>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="dataCentre">dataCentre</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>NODC SUBMITTING INSTITUTION NAMES THESAURUS</gco:CharacterString>
              </gmd:title>
              <gmd:date gco:nilReason="inapplicable" />
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/197" xlink:actuate="onRequest">Alboran Sea</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/36" xlink:actuate="onRequest">Arabian Sea</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/50" xlink:actuate="onRequest">Caribbean Sea</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/54" xlink:actuate="onRequest">Coastal Waters of Southeast Alaska and British Columbia</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/56" xlink:actuate="onRequest">Davis Strait</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/57" xlink:actuate="onRequest">East China Sea (Tung Hai)</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/62" xlink:actuate="onRequest">Gulf of Aden</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/24" xlink:actuate="onRequest">Gulf of Suez</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/207" xlink:actuate="onRequest">Hawaiian Islands Humpback Whale National Marine Sanctuary</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/72" xlink:actuate="onRequest">Indian Ocean</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/73" xlink:actuate="onRequest">Inner Seas off the West Coast of Scotland</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/80" xlink:actuate="onRequest">Labrador Sea</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/117" xlink:actuate="onRequest">Mediterranean Sea</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/59" xlink:actuate="onRequest">Mediterranean Sea - Eastern Basin</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/116" xlink:actuate="onRequest">Mediterranean Sea - Western Basin</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/91" xlink:actuate="onRequest">North Atlantic Ocean</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/92" xlink:actuate="onRequest">North Greenland Sea</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/93" xlink:actuate="onRequest">North Pacific Ocean</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/96" xlink:actuate="onRequest">Norwegian Sea</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/211" xlink:actuate="onRequest">Olympic Coast National Marine Sanctuary</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/210" xlink:actuate="onRequest">Papahānaumokuākea Marine National Monument</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/97" xlink:actuate="onRequest">Philippine Sea</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/98" xlink:actuate="onRequest">Red Sea</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/1" xlink:actuate="onRequest">Rio de la Plata</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/105" xlink:actuate="onRequest">South Atlantic Ocean</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/107" xlink:actuate="onRequest">South Pacific Ocean</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/170" xlink:actuate="onRequest">Southern Ocean</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/4" xlink:actuate="onRequest">Strait of Gibraltar</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/112" xlink:actuate="onRequest">Tasman Sea</gmx:Anchor>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="place">place</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>NODC SEA AREA NAMES THESAURUS</gco:CharacterString>
              </gmd:title>
              <gmd:date gco:nilReason="inapplicable" />
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gco:CharacterString>oceanography</gco:CharacterString>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="theme">theme</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>WMO_CategoryCode</gco:CharacterString>
              </gmd:title>
              <gmd:date>
                <gmd:CI_Date>
                  <gmd:date>
                    <gco:Date>2012-09-15</gco:Date>
                  </gmd:date>
                  <gmd:dateType>
                    <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication">publication</gmd:CI_DateTypeCode>
                  </gmd:dateType>
                </gmd:CI_Date>
              </gmd:date>
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/086c68e5-1c94-4f2f-89d5-0453443ff249" xlink:actuate="onRequest">DOC/NOAA/NESDIS/NODC &gt; National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/772f5ac7-265f-46d3-842b-fd81e77eb8dc" xlink:actuate="onRequest">DOE/ORNL/ESD/CDIAC &gt; Carbon Dioxide Information Analysis Center, Environmental Sciences Division, Oak Ridge National Laboratory, U. S. Department of Energy</gmx:Anchor>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="dataCentre">dataCentre</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>Global Change Master Directory (GCMD) Data Center Keywords</gco:CharacterString>
              </gmd:title>
              <gmd:date>
                <gmd:CI_Date>
                  <gmd:date>
                    <gco:Date>2026</gco:Date>
                  </gmd:date>
                  <gmd:dateType>
                    <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision">revision</gmd:CI_DateTypeCode>
                  </gmd:dateType>
                </gmd:CI_Date>
              </gmd:date>
              <gmd:edition>
                <gco:CharacterString>24</gco:CharacterString>
              </gmd:edition>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:organisationName>
                    <gco:CharacterString>Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)</gco:CharacterString>
                  </gmd:organisationName>
                  <gmd:contactInfo>
                    <gmd:CI_Contact>
                      <gmd:address>
                        <gmd:CI_Address>
                          <gmd:city>
                            <gco:CharacterString>Greenbelt</gco:CharacterString>
                          </gmd:city>
                          <gmd:administrativeArea>
                            <gco:CharacterString>MD</gco:CharacterString>
                          </gmd:administrativeArea>
                        </gmd:CI_Address>
                      </gmd:address>
                      <gmd:onlineResource>
                        <gmd:CI_OnlineResource>
                          <gmd:linkage>
                            <gmd:URL>https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords</gmd:URL>
                          </gmd:linkage>
                          <gmd:protocol>
                            <gco:CharacterString>HTTPS</gco:CharacterString>
                          </gmd:protocol>
                          <gmd:name>
                            <gco:CharacterString>GCMD Keyword Forum Page</gco:CharacterString>
                          </gmd:name>
                          <gmd:description>
                            <gco:CharacterString>Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords</gco:CharacterString>
                          </gmd:description>
                          <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:onlineResource>
                    </gmd:CI_Contact>
                  </gmd:contactInfo>
                  <gmd:role>
                    <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="custodian">custodian</gmd:CI_RoleCode>
                  </gmd:role>
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gco:CharacterString>ANT V/3 #32</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>Ajax 1 #26</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>Ajax 2 #27</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>Ant V/2 #31</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>CGC-90 Leg 1 #40</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>CGC-90 Leg 2 #41</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>Hudson 82-001 Leg 1 #21</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>Hudson 82-001 Leg 2 #22</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>INDOMED Leg 11A #5</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>INDOMED Leg 12 #6</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>INDOMED Leg 15 #7</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>INDOMED Leg 15A #8</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>INDOMED Leg 2 #1</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>INDOMED Leg 3 #2</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>INDOMED Leg 4 #3</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>INDOMED Leg 5 #4</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>NORPAX Leg 13 #12</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>NORPAX Leg 15 #13</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>NORPAX Leg 7 #10</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>NORPAX Leg 9 #11</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>NORPAX Transit #9</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>SAVE Leg 1 #34</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>SAVE Leg 2 #35</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>SAVE Leg 3 #36</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>SAVE Leg 4 #37</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>SAVE Leg 5 # 38</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>SAVE Leg 6 #39</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>SAVE Transit #33</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TPS24 Leg 1 #28</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TPS24 Leg 2 #29</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TPS47 Leg 1 #30</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/NAS Leg 1 #14</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/NAS Leg 2 #15</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/NAS Leg 3 #16</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/NAS Leg 4 #17</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/NAS Leg 5 #18</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/NAS Leg 6 #19</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/NAS Leg 7 #20</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/TAS Leg 1 #23</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/TAS Leg 2 #24</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/TAS Leg 3 #25</gco:CharacterString>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="project">project</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>Cruise ID</gco:CharacterString>
              </gmd:title>
              <gmd:date gco:nilReason="inapplicable" />
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gco:CharacterString>Ocean Carbon and Acidification Data System (OCADS) Project</gco:CharacterString>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="project">project</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>Ocean Acidification Search Keywords</gco:CharacterString>
              </gmd:title>
              <gmd:date gco:nilReason="inapplicable" />
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gco:CharacterString>ANT V/3</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>Ajax1</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>Ajax2</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>Ant V/2</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>CGC-90 Leg 1</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>CGC-90 Leg 2</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>Hudson 82-001 Leg 1</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>Hudson 82-001 Leg 2</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>INDOMED Leg 11A</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>INDOMED Leg 12</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>INDOMED Leg 15</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>INDOMED Leg 15A</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>INDOMED Leg 2</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>INDOMED Leg 3</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>INDOMED Leg 4</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>INDOMED Leg 5</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>NORPAX Leg 13</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>NORPAX Leg 15</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>NORPAX Leg 7</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>NORPAX Leg 9</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>NORPAX Transit</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>SAVE Leg 1</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>SAVE Leg 2</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>SAVE Leg 3</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>SAVE Leg 5</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>SAVE Leg 6</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>SAVE Transit</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TPS24 Leg 1</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TPS24 Leg 2</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TPS47 Leg 1</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/NAS Leg 1</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/NAS Leg 2</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/NAS Leg 3</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/NAS Leg 4</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/NAS Leg 5</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/NAS Leg 6</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/NAS Leg 7</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/TAS Leg 1</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/TAS Leg 2</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>TTO/TAS Leg 3</gco:CharacterString>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="project">project</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>Reference Section ID</gco:CharacterString>
              </gmd:title>
              <gmd:date gco:nilReason="inapplicable" />
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/a65cfcfa-1028-4cc8-a4d5-9e78f487a612" xlink:actuate="onRequest">EARTH SCIENCE &gt; ATMOSPHERE &gt; ATMOSPHERIC CHEMISTRY &gt; CARBON AND HYDROCARBON COMPOUNDS &gt; ATMOSPHERIC CARBON DIOXIDE &gt; PARTIAL PRESSURE OF CARBON DIOXIDE</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/08fd82a1-4370-46a2-82ea-94c0f91498a7" xlink:actuate="onRequest">EARTH SCIENCE &gt; ATMOSPHERE &gt; ATMOSPHERIC PRESSURE</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/6eb3919b-85ce-4988-8b78-9d0018fd8089" xlink:actuate="onRequest">EARTH SCIENCE &gt; OCEANS &gt; OCEAN CHEMISTRY</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/26afa886-4866-4536-be3a-6f9db9aacd97" xlink:actuate="onRequest">EARTH SCIENCE &gt; OCEANS &gt; OCEAN CHEMISTRY &gt; CARBON DIOXIDE</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/bd24a9a9-7d52-4c29-b2a0-6cefd216ae78" xlink:actuate="onRequest">EARTH SCIENCE &gt; OCEANS &gt; OCEAN TEMPERATURE &gt; SEA SURFACE TEMPERATURE</gmx:Anchor>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="theme">theme</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>Global Change Master Directory (GCMD) Science Keywords</gco:CharacterString>
              </gmd:title>
              <gmd:date>
                <gmd:CI_Date>
                  <gmd:date>
                    <gco:Date>2026</gco:Date>
                  </gmd:date>
                  <gmd:dateType>
                    <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision">revision</gmd:CI_DateTypeCode>
                  </gmd:dateType>
                </gmd:CI_Date>
              </gmd:date>
              <gmd:edition>
                <gco:CharacterString>24</gco:CharacterString>
              </gmd:edition>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:organisationName>
                    <gco:CharacterString>Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)</gco:CharacterString>
                  </gmd:organisationName>
                  <gmd:contactInfo>
                    <gmd:CI_Contact>
                      <gmd:address>
                        <gmd:CI_Address>
                          <gmd:city>
                            <gco:CharacterString>Greenbelt</gco:CharacterString>
                          </gmd:city>
                          <gmd:administrativeArea>
                            <gco:CharacterString>MD</gco:CharacterString>
                          </gmd:administrativeArea>
                        </gmd:CI_Address>
                      </gmd:address>
                      <gmd:onlineResource>
                        <gmd:CI_OnlineResource>
                          <gmd:linkage>
                            <gmd:URL>https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords</gmd:URL>
                          </gmd:linkage>
                          <gmd:protocol>
                            <gco:CharacterString>HTTPS</gco:CharacterString>
                          </gmd:protocol>
                          <gmd:name>
                            <gco:CharacterString>GCMD Keyword Forum Page</gco:CharacterString>
                          </gmd:name>
                          <gmd:description>
                            <gco:CharacterString>Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords</gco:CharacterString>
                          </gmd:description>
                          <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:onlineResource>
                    </gmd:CI_Contact>
                  </gmd:contactInfo>
                  <gmd:role>
                    <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="custodian">custodian</gmd:CI_RoleCode>
                  </gmd:role>
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gco:CharacterString>Surface underway</gco:CharacterString>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="theme">theme</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>OCADS Study Type</gco:CharacterString>
              </gmd:title>
              <gmd:date gco:nilReason="inapplicable" />
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gco:CharacterString>ATM_PRE</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>SST</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>XCO2_AIR</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>XCO2_WAT</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>XN2O</gco:CharacterString>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="theme">theme</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>Provider Variable Abbreviations</gco:CharacterString>
              </gmd:title>
              <gmd:date gco:nilReason="inapplicable" />
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/7aecabfb-0047-484f-8396-efc0da16bc20" xlink:actuate="onRequest">CO2 ANALYZERS &gt; CO2 ANALYZERS</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/d8efbcb9-9ab3-4016-b7ff-6426cd0bf545" xlink:actuate="onRequest">EQUILIBRATORS</gmx:Anchor>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="instrument">instrument</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>Global Change Master Directory (GCMD) Instrument Keywords</gco:CharacterString>
              </gmd:title>
              <gmd:date>
                <gmd:CI_Date>
                  <gmd:date>
                    <gco:Date>2026</gco:Date>
                  </gmd:date>
                  <gmd:dateType>
                    <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision">revision</gmd:CI_DateTypeCode>
                  </gmd:dateType>
                </gmd:CI_Date>
              </gmd:date>
              <gmd:edition>
                <gco:CharacterString>24</gco:CharacterString>
              </gmd:edition>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:organisationName>
                    <gco:CharacterString>Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)</gco:CharacterString>
                  </gmd:organisationName>
                  <gmd:contactInfo>
                    <gmd:CI_Contact>
                      <gmd:address>
                        <gmd:CI_Address>
                          <gmd:city>
                            <gco:CharacterString>Greenbelt</gco:CharacterString>
                          </gmd:city>
                          <gmd:administrativeArea>
                            <gco:CharacterString>MD</gco:CharacterString>
                          </gmd:administrativeArea>
                        </gmd:CI_Address>
                      </gmd:address>
                      <gmd:onlineResource>
                        <gmd:CI_OnlineResource>
                          <gmd:linkage>
                            <gmd:URL>https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords</gmd:URL>
                          </gmd:linkage>
                          <gmd:protocol>
                            <gco:CharacterString>HTTPS</gco:CharacterString>
                          </gmd:protocol>
                          <gmd:name>
                            <gco:CharacterString>GCMD Keyword Forum Page</gco:CharacterString>
                          </gmd:name>
                          <gmd:description>
                            <gco:CharacterString>Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords</gco:CharacterString>
                          </gmd:description>
                          <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:onlineResource>
                    </gmd:CI_Contact>
                  </gmd:contactInfo>
                  <gmd:role>
                    <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="custodian">custodian</gmd:CI_RoleCode>
                  </gmd:role>
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/1bb21d0f-bf48-42b5-8e09-cc0d58407e4a" xlink:actuate="onRequest">Ships</gmx:Anchor>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="platform">platform</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>Global Change Master Directory (GCMD) Platform Keywords</gco:CharacterString>
              </gmd:title>
              <gmd:date>
                <gmd:CI_Date>
                  <gmd:date>
                    <gco:Date>2026</gco:Date>
                  </gmd:date>
                  <gmd:dateType>
                    <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision">revision</gmd:CI_DateTypeCode>
                  </gmd:dateType>
                </gmd:CI_Date>
              </gmd:date>
              <gmd:edition>
                <gco:CharacterString>24</gco:CharacterString>
              </gmd:edition>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:organisationName>
                    <gco:CharacterString>Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)</gco:CharacterString>
                  </gmd:organisationName>
                  <gmd:contactInfo>
                    <gmd:CI_Contact>
                      <gmd:address>
                        <gmd:CI_Address>
                          <gmd:city>
                            <gco:CharacterString>Greenbelt</gco:CharacterString>
                          </gmd:city>
                          <gmd:administrativeArea>
                            <gco:CharacterString>MD</gco:CharacterString>
                          </gmd:administrativeArea>
                        </gmd:CI_Address>
                      </gmd:address>
                      <gmd:onlineResource>
                        <gmd:CI_OnlineResource>
                          <gmd:linkage>
                            <gmd:URL>https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords</gmd:URL>
                          </gmd:linkage>
                          <gmd:protocol>
                            <gco:CharacterString>HTTPS</gco:CharacterString>
                          </gmd:protocol>
                          <gmd:name>
                            <gco:CharacterString>GCMD Keyword Forum Page</gco:CharacterString>
                          </gmd:name>
                          <gmd:description>
                            <gco:CharacterString>Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords</gco:CharacterString>
                          </gmd:description>
                          <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:onlineResource>
                    </gmd:CI_Contact>
                  </gmd:contactInfo>
                  <gmd:role>
                    <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="custodian">custodian</gmd:CI_RoleCode>
                  </gmd:role>
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://vocab.ices.dk/services/pox/GetCodeDetail/SHIPC/18HU" xlink:actuate="onRequest">HUDSON (call sign: CGDG, ICES code: 18HU, 1964-)</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://vocab.ices.dk/services/pox/GetCodeDetail/SHIPC/316N" xlink:actuate="onRequest">KNORR (call sign: KCEJ, ICES code: 316N, 1970-)</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://vocab.ices.dk/services/pox/GetCodeDetail/SHIPC/318M" xlink:actuate="onRequest">MELVILLE (call sign: WECB, ICES code: 318M, 1969-)</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://vocab.ices.dk/services/pox/GetCodeDetail/SHIPC/33MW" xlink:actuate="onRequest">Malcolm Baldrige (call sign: WTER, ICES code: 33MW, 1988-1996)</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://vocab.ices.dk/services/pox/GetCodeDetail/SHIPC/06AQ" xlink:actuate="onRequest">Polarstern (call sign: DBLK, ICES code: 06AQ, 1982-)</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://vocab.ices.dk/services/pox/GetCodeDetail/SHIPC/3250" xlink:actuate="onRequest">THOMAS G. THOMPSON (call sign: KTDQ, ICES code: 3250, 1991-)</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://vocab.ices.dk/services/pox/GetCodeDetail/SHIPC/32WC" xlink:actuate="onRequest">WECOMA (call sign: WSD7079, ICES code: 32WC, 1976-)</gmx:Anchor>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="platform">platform</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>ICES/SeaDataNet Ship Codes</gco:CharacterString>
              </gmd:title>
              <gmd:date gco:nilReason="inapplicable" />
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/1ed45273-3e2b-4586-b852-05578c04041b" xlink:actuate="onRequest">OCEAN &gt; ARCTIC OCEAN</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/a4202721-0cba-4fa1-853f-890f146b04f9" xlink:actuate="onRequest">OCEAN &gt; ATLANTIC OCEAN &gt; NORTH ATLANTIC OCEAN</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/eb176e48-13e2-413c-85d6-b37e16303573" xlink:actuate="onRequest">OCEAN &gt; ATLANTIC OCEAN &gt; NORTH ATLANTIC OCEAN &gt; CARIBBEAN SEA</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/29e79a9c-f1a9-4832-8813-e3a12dfddec6" xlink:actuate="onRequest">OCEAN &gt; ATLANTIC OCEAN &gt; NORTH ATLANTIC OCEAN &gt; DAVIS STRAIT</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/c322d007-8d19-451b-ba46-daa216782248" xlink:actuate="onRequest">OCEAN &gt; ATLANTIC OCEAN &gt; NORTH ATLANTIC OCEAN &gt; MEDITERRANEAN SEA</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/91dd3935-a1ae-48ca-b263-9b10ac732372" xlink:actuate="onRequest">OCEAN &gt; ATLANTIC OCEAN &gt; NORTH ATLANTIC OCEAN &gt; NORWEGIAN SEA</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/9ce6b6ba-8f9f-4585-9438-05619d768578" xlink:actuate="onRequest">OCEAN &gt; ATLANTIC OCEAN &gt; SOUTH ATLANTIC OCEAN</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/4b75a3a2-9811-43b9-8f8c-64d0ae4d9ca8" xlink:actuate="onRequest">OCEAN &gt; INDIAN OCEAN</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/a186eed4-d1b4-4d11-b218-b61708a9124c" xlink:actuate="onRequest">OCEAN &gt; INDIAN OCEAN &gt; ARABIAN SEA</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/d7808080-aea5-48f3-b0da-78141ef6324e" xlink:actuate="onRequest">OCEAN &gt; INDIAN OCEAN &gt; RED SEA</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/2006ec69-34f2-4ece-8823-6dc49f892b02" xlink:actuate="onRequest">OCEAN &gt; PACIFIC OCEAN &gt; CENTRAL PACIFIC OCEAN &gt; HAWAIIAN ISLANDS</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/5488b1cc-08b2-41cf-9bd2-4a2cdd0990de" xlink:actuate="onRequest">OCEAN &gt; PACIFIC OCEAN &gt; NORTH PACIFIC OCEAN</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/fa0ec8a7-ebed-4f2d-834b-1fa6a1c2e0ed" xlink:actuate="onRequest">OCEAN &gt; PACIFIC OCEAN &gt; SOUTH PACIFIC OCEAN</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/6d61eeb2-a5a6-4364-b974-e5b4d317327f" xlink:actuate="onRequest">OCEAN &gt; PACIFIC OCEAN &gt; WESTERN PACIFIC OCEAN &gt; EAST CHINA SEA</gmx:Anchor>
          </gmd:keyword>
          <gmd:keyword>
            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/b791f381-1c1c-4958-bc7d-b72a15da1174" xlink:actuate="onRequest">OCEAN &gt; SOUTHERN OCEAN</gmx:Anchor>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="place">place</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>Global Change Master Directory (GCMD) Location Keywords</gco:CharacterString>
              </gmd:title>
              <gmd:date>
                <gmd:CI_Date>
                  <gmd:date>
                    <gco:Date>2026</gco:Date>
                  </gmd:date>
                  <gmd:dateType>
                    <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision">revision</gmd:CI_DateTypeCode>
                  </gmd:dateType>
                </gmd:CI_Date>
              </gmd:date>
              <gmd:edition>
                <gco:CharacterString>24</gco:CharacterString>
              </gmd:edition>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:organisationName>
                    <gco:CharacterString>Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)</gco:CharacterString>
                  </gmd:organisationName>
                  <gmd:contactInfo>
                    <gmd:CI_Contact>
                      <gmd:address>
                        <gmd:CI_Address>
                          <gmd:city>
                            <gco:CharacterString>Greenbelt</gco:CharacterString>
                          </gmd:city>
                          <gmd:administrativeArea>
                            <gco:CharacterString>MD</gco:CharacterString>
                          </gmd:administrativeArea>
                        </gmd:CI_Address>
                      </gmd:address>
                      <gmd:onlineResource>
                        <gmd:CI_OnlineResource>
                          <gmd:linkage>
                            <gmd:URL>https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords</gmd:URL>
                          </gmd:linkage>
                          <gmd:protocol>
                            <gco:CharacterString>HTTPS</gco:CharacterString>
                          </gmd:protocol>
                          <gmd:name>
                            <gco:CharacterString>GCMD Keyword Forum Page</gco:CharacterString>
                          </gmd:name>
                          <gmd:description>
                            <gco:CharacterString>Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords</gco:CharacterString>
                          </gmd:description>
                          <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:onlineResource>
                    </gmd:CI_Contact>
                  </gmd:contactInfo>
                  <gmd:role>
                    <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="custodian">custodian</gmd:CI_RoleCode>
                  </gmd:role>
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gco:CharacterString>Atlantic Ocean</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>Indian Ocean</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>Mediterranean Sea</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>Pacific Ocean</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>Weddell Sea</gco:CharacterString>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="place">place</gmd:MD_KeywordTypeCode>
          </gmd:type>
          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>Provider Geographic Names</gco:CharacterString>
              </gmd:title>
              <gmd:date gco:nilReason="inapplicable" />
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:resourceConstraints>
        <gmd:MD_Constraints>
          <gmd:useLimitation>
            <gco:CharacterString>accessLevel: public</gco:CharacterString>
          </gmd:useLimitation>
        </gmd:MD_Constraints>
      </gmd:resourceConstraints>
      <gmd:resourceConstraints xlink:title="NCEI Data Citation Statement">
        <gmd:MD_LegalConstraints>
          <gmd:useConstraints>
            <gmd:MD_RestrictionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
          </gmd:useConstraints>
          <gmd:otherConstraints>
            <gco:CharacterString>Cite as: Weiss, Ray F.; Van Woy, Frederick A.; Salameh, Peter K. (2002). Fugacity of carbon dioxide and other variables collected from Surface underway observations using carbon dioxide (CO2) gas analyzer, showerhead equilibrator and other instruments from HUDSON, KNORR and others in the Alboran Sea, Arabian Sea and others from 1977-11-07 to 1990-04-16 (NCEI Accession 9400165). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.ndp044. Accessed [date].</gco:CharacterString>
          </gmd:otherConstraints>
        </gmd:MD_LegalConstraints>
      </gmd:resourceConstraints>
      <gmd:resourceConstraints>
        <gmd:MD_LegalConstraints>
          <gmd:useLimitation>
            <gco:CharacterString>Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.</gco:CharacterString>
          </gmd:useLimitation>
        </gmd:MD_LegalConstraints>
      </gmd:resourceConstraints>
      <gmd:resourceConstraints>
        <gmd:MD_LegalConstraints>
          <gmd:accessConstraints>
            <gmd:MD_RestrictionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
          </gmd:accessConstraints>
          <gmd:otherConstraints>
            <gco:CharacterString>Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.</gco:CharacterString>
          </gmd:otherConstraints>
        </gmd:MD_LegalConstraints>
      </gmd:resourceConstraints>
      <gmd:aggregationInfo>
        <gmd:MD_AggregateInformation>
          <gmd:aggregateDataSetName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>R.F. Weiss, F.A. Van Woy, and P.K. Salameh (1992). Surface water and atmospheric carbon dioxide and nitrous oxide observations by shipboard automated gas chromatography: Results from expeditions between 1977 and 1990. Scripps Institution of Oceanography Reference 92-11. ORNL/CDIAC-59, NDP-044. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, Tennessee, ANT V/3, Ant V/2, CGC-90 Leg 1, CGC-90 Leg 2, HUDSON 82-001 Leg 2, Hudson 82-001 Leg 1, INDOMED Leg 11A, INDOMED Leg 12, INDOMED Leg 15, INDOMED Leg 15A, INDOMED Leg 2, INDOMED Leg 3, INDOMED Leg 4, INDOMED Leg 5, NORPAX Leg 13, NORPAX Leg 15, NORPAX Leg 7, NORPAX Leg 9, NORPAX Transit, SAVE Leg 1, SAVE Leg 2, SAVE Leg 3, SAVE Leg 4, SAVE Leg 5, SAVE Leg 6, SAVE Transit, TPS24 Leg 1, TPS24 Leg 2, TPS47 Leg 1, TTO/NAS Leg 1, TTO/NAS Leg 2, TTO/NAS Leg 3, TTO/NAS Leg 4, TTO/NAS Leg 5, TTO/NAS Leg 6, TTO/NAS Leg 7, TTO/TAS Leg 1, TTO/TAS Leg 2, TTO/TAS Leg 3, ajax1, underway ajax2.</gco:CharacterString>
              </gmd:title>
              <gmd:date>
                <gmd:CI_Date>
                  <gmd:date>
                    <gco:Date>1992</gco:Date>
                  </gmd:date>
                  <gmd:dateType>
                    <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication">publication</gmd:CI_DateTypeCode>
                  </gmd:dateType>
                </gmd:CI_Date>
              </gmd:date>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>ANT V/3</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>Ant V/2</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>CGC-90 Leg 1</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>CGC-90 Leg 2</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>HUDSON 82-001 Leg 2</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>Hudson 82-001 Leg 1</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>INDOMED Leg 11A</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>INDOMED Leg 12</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>INDOMED Leg 15</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>INDOMED Leg 15A</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>INDOMED Leg 2</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>INDOMED Leg 3</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>INDOMED Leg 4</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>INDOMED Leg 5</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>NORPAX Leg 13</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>NORPAX Leg 15</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>NORPAX Leg 7</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>NORPAX Leg 9</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>NORPAX Transit</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>SAVE Leg 1</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>SAVE Leg 2</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>SAVE Leg 3</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>SAVE Leg 4</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>SAVE Leg 5</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>SAVE Leg 6</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>SAVE Transit</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>TPS24 Leg 1</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>TPS24 Leg 2</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>TPS47 Leg 1</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>TTO/NAS Leg 1</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>TTO/NAS Leg 2</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>TTO/NAS Leg 3</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>TTO/NAS Leg 4</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>TTO/NAS Leg 5</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>TTO/NAS Leg 6</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>TTO/NAS Leg 7</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>TTO/TAS Leg 1</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>TTO/TAS Leg 2</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>TTO/TAS Leg 3</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>ajax1</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:code>
                    <gco:CharacterString>underway ajax2</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:individualName>
                    <gco:CharacterString>R.F. Weiss, F.A. Van Woy, and P.K. Salameh</gco:CharacterString>
                  </gmd:individualName>
                  <gmd:role>
                    <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="author">author</gmd:CI_RoleCode>
                  </gmd:role>
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:organisationName>
                    <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/179" xlink:actuate="onRequest">Carbon Dioxide Information Analysis Center (CDIAC)</gmx:Anchor>
                  </gmd:organisationName>
                  <gmd:role>
                    <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="publisher">publisher</gmd:CI_RoleCode>
                  </gmd:role>
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
              <gmd:series>
                <gmd:CI_Series>
                  <gmd:name>
                    <gco:CharacterString>Ocean CO2</gco:CharacterString>
                  </gmd:name>
                </gmd:CI_Series>
              </gmd:series>
              <gmd:otherCitationDetails>
                <gco:CharacterString>[retrieved from http://cdiac.ornl.gov/ftp/ndp044/]</gco:CharacterString>
              </gmd:otherCitationDetails>
            </gmd:CI_Citation>
          </gmd:aggregateDataSetName>
          <gmd:associationType>
            <gmd:DS_AssociationTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#DS_AssociationTypeCode" codeListValue="crossReference">crossReference</gmd:DS_AssociationTypeCode>
          </gmd:associationType>
        </gmd:MD_AggregateInformation>
      </gmd:aggregationInfo>
      <gmd:aggregationInfo>
        <gmd:MD_AggregateInformation>
          <gmd:aggregateDataSetName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>NOAA National Centers for Environmental Information (2022). Ocean Carbon and Acidification Data System (OCADS). NOAA National Centers for Environmental Information. https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system</gco:CharacterString>
              </gmd:title>
              <gmd:date>
                <gmd:CI_Date>
                  <gmd:date>
                    <gco:Date>2022-04</gco:Date>
                  </gmd:date>
                  <gmd:dateType>
                    <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication">publication</gmd:CI_DateTypeCode>
                  </gmd:dateType>
                </gmd:CI_Date>
              </gmd:date>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:positionName gco:nilReason="unknown" />
                  <gmd:contactInfo>
                    <gmd:CI_Contact>
                      <gmd:onlineResource>
                        <gmd:CI_OnlineResource>
                          <gmd:linkage>
                            <gmd:URL>https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system</gmd:URL>
                          </gmd:linkage>
                          <gmd:protocol>
                            <gco:CharacterString>HTTPS</gco:CharacterString>
                          </gmd:protocol>
                          <gmd:name>
                            <gco:CharacterString>https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system</gco:CharacterString>
                          </gmd:name>
                          <gmd:description>
                            <gco:CharacterString>OCADS website</gco:CharacterString>
                          </gmd:description>
                          <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:onlineResource>
                    </gmd:CI_Contact>
                  </gmd:contactInfo>
                  <gmd:role gco:nilReason="unknown" />
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:organisationName>
                    <gmx:Anchor xlink:href="https://ror.org/04r0wrp59" xlink:actuate="onRequest">NOAA National Centers for Environmental Information</gmx:Anchor>
                  </gmd:organisationName>
                  <gmd:role>
                    <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="author">author</gmd:CI_RoleCode>
                  </gmd:role>
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:organisationName>
                    <gmx:Anchor xlink:href="https://ror.org/04r0wrp59" xlink:actuate="onRequest">NOAA National Centers for Environmental Information (NCEI)</gmx:Anchor>
                  </gmd:organisationName>
                  <gmd:role>
                    <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="publisher">publisher</gmd:CI_RoleCode>
                  </gmd:role>
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
              <gmd:presentationForm>
                <gmd:CI_PresentationFormCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_PresentationFormCode" codeListValue="documentDigital">documentDigital</gmd:CI_PresentationFormCode>
              </gmd:presentationForm>
              <gmd:otherCitationDetails>
                <gco:CharacterString>[accessed 2024-02-08]</gco:CharacterString>
              </gmd:otherCitationDetails>
            </gmd:CI_Citation>
          </gmd:aggregateDataSetName>
          <gmd:associationType>
            <gmd:DS_AssociationTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#DS_AssociationTypeCode" codeListValue="crossReference">crossReference</gmd:DS_AssociationTypeCode>
          </gmd:associationType>
          <gmd:initiativeType>
            <gmd:DS_InitiativeTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#DS_InitiativeTypeCode" codeListValue="program">program</gmd:DS_InitiativeTypeCode>
          </gmd:initiativeType>
        </gmd:MD_AggregateInformation>
      </gmd:aggregationInfo>
      <gmd:aggregationInfo>
        <gmd:MD_AggregateInformation>
          <gmd:aggregateDataSetName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>Brewer, Peter G.; Takahashi, Taro; Williams, Robert T. (2002). Dissolved inorganic carbon (DIC), total alkalinity, water temperature, salinity, dissolved oxygen concentration and other variables collected from discrete sample and profile observations during R/V Knorr TTO-NAS cruises in the North Atlantic Ocean from 1981-04-01 to 1981-10-19 (NCEI Accession 0000733). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.ndp004.</gco:CharacterString>
              </gmd:title>
              <gmd:date>
                <gmd:CI_Date>
                  <gmd:date>
                    <gco:Date>2002-06-17</gco:Date>
                  </gmd:date>
                  <gmd:dateType>
                    <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication">publication</gmd:CI_DateTypeCode>
                  </gmd:dateType>
                </gmd:CI_Date>
              </gmd:date>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:authority>
                    <gmd:CI_Citation>
                      <gmd:title>
                        <gco:CharacterString>International DOI Foundation (IDF)</gco:CharacterString>
                      </gmd:title>
                      <gmd:date gco:nilReason="inapplicable" />
                    </gmd:CI_Citation>
                  </gmd:authority>
                  <gmd:code>
                    <gco:CharacterString>https://doi.org/10.3334/cdiac/otg.ndp004</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:identifier>
                <gmd:MD_Identifier>
                  <gmd:authority>
                    <gmd:CI_Citation>
                      <gmd:title>
                        <gco:CharacterString>NOAA National Centers for Environmental Information</gco:CharacterString>
                      </gmd:title>
                      <gmd:date gco:nilReason="inapplicable" />
                    </gmd:CI_Citation>
                  </gmd:authority>
                  <gmd:code>
                    <gco:CharacterString>gov.noaa.nodc:0000733</gco:CharacterString>
                  </gmd:code>
                </gmd:MD_Identifier>
              </gmd:identifier>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:positionName gco:nilReason="unknown" />
                  <gmd:contactInfo>
                    <gmd:CI_Contact>
                      <gmd:onlineResource>
                        <gmd:CI_OnlineResource>
                          <gmd:linkage>
                            <gmd:URL>https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0000733.html</gmd:URL>
                          </gmd:linkage>
                          <gmd:protocol>
                            <gco:CharacterString>HTTPS</gco:CharacterString>
                          </gmd:protocol>
                          <gmd:name>
                            <gco:CharacterString>https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0000733.html</gco:CharacterString>
                          </gmd:name>
                          <gmd:description>
                            <gco:CharacterString>Related dataset</gco:CharacterString>
                          </gmd:description>
                          <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:onlineResource>
                    </gmd:CI_Contact>
                  </gmd:contactInfo>
                  <gmd:role gco:nilReason="unknown" />
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:individualName>
                    <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/person/details/748" xlink:actuate="onRequest">Brewer, Peter G.</gmx:Anchor>
                  </gmd:individualName>
                  <gmd:organisationName>
                    <gmx:Anchor xlink:href="https://ror.org/03zbnzt98" xlink:actuate="onRequest">Woods Hole Oceanographic Institution</gmx:Anchor>
                  </gmd:organisationName>
                  <gmd:contactInfo>
                    <gmd:CI_Contact>
                      <gmd:onlineResource>
                        <gmd:CI_OnlineResource>
                          <gmd:linkage>
                            <gmd:URL>http://www.whoi.edu</gmd:URL>
                          </gmd:linkage>
                          <gmd:protocol>
                            <gco:CharacterString>HTTP</gco:CharacterString>
                          </gmd:protocol>
                          <gmd:name>
                            <gco:CharacterString>Woods Hole Oceanographic Institution (WHOI) website</gco:CharacterString>
                          </gmd:name>
                          <gmd:description>
                            <gco:CharacterString>Institution web page</gco:CharacterString>
                          </gmd:description>
                          <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:onlineResource>
                    </gmd:CI_Contact>
                  </gmd:contactInfo>
                  <gmd:role>
                    <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="author">author</gmd:CI_RoleCode>
                  </gmd:role>
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:individualName>
                    <gmx:Anchor xlink:href="https://orcid.org/0000-0002-6730-6923" xlink:actuate="onRequest">Takahashi, Taro</gmx:Anchor>
                  </gmd:individualName>
                  <gmd:organisationName>
                    <gmx:Anchor xlink:href="https://ror.org/02e2tgs60" xlink:actuate="onRequest">Lamont-Doherty Earth Observatory</gmx:Anchor>
                  </gmd:organisationName>
                  <gmd:contactInfo>
                    <gmd:CI_Contact>
                      <gmd:onlineResource>
                        <gmd:CI_OnlineResource>
                          <gmd:linkage>
                            <gmd:URL>http://www.ldeo.columbia.edu/</gmd:URL>
                          </gmd:linkage>
                          <gmd:protocol>
                            <gco:CharacterString>HTTP</gco:CharacterString>
                          </gmd:protocol>
                          <gmd:name>
                            <gco:CharacterString>Lamont-Doherty Earth Observatory (LDEO) website</gco:CharacterString>
                          </gmd:name>
                          <gmd:description>
                            <gco:CharacterString>Institution web page</gco:CharacterString>
                          </gmd:description>
                          <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:onlineResource>
                    </gmd:CI_Contact>
                  </gmd:contactInfo>
                  <gmd:role>
                    <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="author">author</gmd:CI_RoleCode>
                  </gmd:role>
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:individualName>
                    <gmx:Anchor xlink:href="https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/person/details/712" xlink:actuate="onRequest">Williams, Robert T.</gmx:Anchor>
                  </gmd:individualName>
                  <gmd:organisationName>
                    <gmx:Anchor xlink:href="https://ror.org/04v7hvq31" xlink:actuate="onRequest">Scripps Institution of Oceanography</gmx:Anchor>
                  </gmd:organisationName>
                  <gmd:contactInfo>
                    <gmd:CI_Contact>
                      <gmd:onlineResource>
                        <gmd:CI_OnlineResource>
                          <gmd:linkage>
                            <gmd:URL>https://scripps.ucsd.edu/</gmd:URL>
                          </gmd:linkage>
                          <gmd:protocol>
                            <gco:CharacterString>HTTPS</gco:CharacterString>
                          </gmd:protocol>
                          <gmd:name>
                            <gco:CharacterString>Scripps Institution of Oceanography (SIO) website</gco:CharacterString>
                          </gmd:name>
                          <gmd:description>
                            <gco:CharacterString>Institution web page</gco:CharacterString>
                          </gmd:description>
                          <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:onlineResource>
                    </gmd:CI_Contact>
                  </gmd:contactInfo>
                  <gmd:role>
                    <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="author">author</gmd:CI_RoleCode>
                  </gmd:role>
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:organisationName>
                    <gmx:Anchor xlink:href="https://ror.org/04r0wrp59" xlink:actuate="onRequest">NOAA National Centers for Environmental Information (NCEI)</gmx:Anchor>
                  </gmd:organisationName>
                  <gmd:role>
                    <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="publisher">publisher</gmd:CI_RoleCode>
                  </gmd:role>
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
              <gmd:presentationForm>
                <gmd:CI_PresentationFormCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_PresentationFormCode" codeListValue="tableDigital">tableDigital</gmd:CI_PresentationFormCode>
              </gmd:presentationForm>
            </gmd:CI_Citation>
          </gmd:aggregateDataSetName>
          <gmd:associationType>
            <gmd:DS_AssociationTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#DS_AssociationTypeCode" codeListValue="crossReference">crossReference</gmd:DS_AssociationTypeCode>
          </gmd:associationType>
          <gmd:initiativeType>
            <gmd:DS_InitiativeTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#DS_InitiativeTypeCode" codeListValue="project">project</gmd:DS_InitiativeTypeCode>
          </gmd:initiativeType>
        </gmd:MD_AggregateInformation>
      </gmd:aggregationInfo>
      <gmd:aggregationInfo>
        <gmd:MD_AggregateInformation>
          <gmd:aggregateDataSetName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>Ships Of Opportunity Program (SOOP) Data</gco:CharacterString>
              </gmd:title>
              <gmd:date>
                <gmd:CI_Date>
                  <gmd:date>
                    <gco:Date>2022</gco:Date>
                  </gmd:date>
                  <gmd:dateType>
                    <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication">publication</gmd:CI_DateTypeCode>
                  </gmd:dateType>
                </gmd:CI_Date>
              </gmd:date>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:positionName gco:nilReason="unknown" />
                  <gmd:contactInfo>
                    <gmd:CI_Contact>
                      <gmd:onlineResource>
                        <gmd:CI_OnlineResource>
                          <gmd:linkage>
                            <gmd:URL>https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/VOS_Program/</gmd:URL>
                          </gmd:linkage>
                          <gmd:protocol>
                            <gco:CharacterString>HTTPS</gco:CharacterString>
                          </gmd:protocol>
                          <gmd:name>
                            <gco:CharacterString>https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/VOS_Program/</gco:CharacterString>
                          </gmd:name>
                          <gmd:description>
                            <gco:CharacterString>Related resource</gco:CharacterString>
                          </gmd:description>
                          <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:onlineResource>
                    </gmd:CI_Contact>
                  </gmd:contactInfo>
                  <gmd:role gco:nilReason="unknown" />
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:organisationName>
                    <gmx:Anchor xlink:href="https://ror.org/04r0wrp59" xlink:actuate="onRequest">NOAA National Centers for Environmental Information (NCEI)</gmx:Anchor>
                  </gmd:organisationName>
                  <gmd:role>
                    <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="publisher">publisher</gmd:CI_RoleCode>
                  </gmd:role>
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
              <gmd:presentationForm>
                <gmd:CI_PresentationFormCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_PresentationFormCode" codeListValue="documentDigital">documentDigital</gmd:CI_PresentationFormCode>
              </gmd:presentationForm>
            </gmd:CI_Citation>
          </gmd:aggregateDataSetName>
          <gmd:associationType>
            <gmd:DS_AssociationTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#DS_AssociationTypeCode" codeListValue="crossReference">crossReference</gmd:DS_AssociationTypeCode>
          </gmd:associationType>
          <gmd:initiativeType>
            <gmd:DS_InitiativeTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#DS_InitiativeTypeCode" codeListValue="project">project</gmd:DS_InitiativeTypeCode>
          </gmd:initiativeType>
        </gmd:MD_AggregateInformation>
      </gmd:aggregationInfo>
      <gmd:language>
        <gmd:LanguageCode codeList="http://www.loc.gov/standards/iso639-2/php/code_list.php" codeListValue="eng">eng; USA</gmd:LanguageCode>
      </gmd:language>
      <gmd:characterSet>
        <gmd:MD_CharacterSetCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_CharacterSetCode" codeListValue="utf8">utf8</gmd:MD_CharacterSetCode>
      </gmd:characterSet>
      <gmd:topicCategory>
        <gmd:MD_TopicCategoryCode>environment</gmd:MD_TopicCategoryCode>
      </gmd:topicCategory>
      <gmd:topicCategory>
        <gmd:MD_TopicCategoryCode>oceans</gmd:MD_TopicCategoryCode>
      </gmd:topicCategory>
      <gmd:topicCategory>
        <gmd:MD_TopicCategoryCode>climatologyMeteorologyAtmosphere</gmd:MD_TopicCategoryCode>
      </gmd:topicCategory>
      <gmd:extent>
        <gmd:EX_Extent id="boundingExtent">
          <gmd:geographicElement>
            <gmd:EX_GeographicBoundingBox id="boundingGeographicBoundingBox">
              <gmd:westBoundLongitude>
                <gco:Decimal>-104.357</gco:Decimal>
              </gmd:westBoundLongitude>
              <gmd:eastBoundLongitude>
                <gco:Decimal>-117.33</gco:Decimal>
              </gmd:eastBoundLongitude>
              <gmd:southBoundLatitude>
                <gco:Decimal>-77.177</gco:Decimal>
              </gmd:southBoundLatitude>
              <gmd:northBoundLatitude>
                <gco:Decimal>79.005</gco:Decimal>
              </gmd:northBoundLatitude>
            </gmd:EX_GeographicBoundingBox>
          </gmd:geographicElement>
          <gmd:temporalElement>
            <gmd:EX_TemporalExtent id="boundingTemporalExtent">
              <gmd:extent>
                <gml:TimePeriod gml:id="boundingTemporalExtentPeriod">
                  <gml:beginPosition>1977-11-07</gml:beginPosition>
                  <gml:endPosition>1990-04-16</gml:endPosition>
                </gml:TimePeriod>
              </gmd:extent>
            </gmd:EX_TemporalExtent>
          </gmd:temporalElement>
        </gmd:EX_Extent>
      </gmd:extent>
      <gmd:supplementalInformation>
        <gco:CharacterString>These data were acquired by NCEI from the Carbon Dioxide Information Analysis Center (CDIAC) in accordance with an archival submission agreement between CDIAC and NCEI.

In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number.</gco:CharacterString>
      </gmd:supplementalInformation>
    </gmd:MD_DataIdentification>
  </gmd:identificationInfo>
  <gmd:distributionInfo>
    <gmd:MD_Distribution>
      <gmd:distributor>
        <gmd:MD_Distributor>
          <gmd:distributorContact>
            <gmd:CI_ResponsibleParty>
              <gmd:organisationName>
                <gmx:Anchor xlink:href="https://ror.org/04r0wrp59" xlink:actuate="onRequest">NOAA National Centers for Environmental Information</gmx:Anchor>
              </gmd:organisationName>
              <gmd:contactInfo>
                <gmd:CI_Contact>
                  <gmd:phone>
                    <gmd:CI_Telephone>
                      <gmd:voice>
                        <gco:CharacterString>+1-301-713-3277</gco:CharacterString>
                      </gmd:voice>
                    </gmd:CI_Telephone>
                  </gmd:phone>
                  <gmd:address>
                    <gmd:CI_Address>
                      <gmd:electronicMailAddress>
                        <gco:CharacterString>ncei.info@noaa.gov</gco:CharacterString>
                      </gmd:electronicMailAddress>
                    </gmd:CI_Address>
                  </gmd:address>
                </gmd:CI_Contact>
              </gmd:contactInfo>
              <gmd:role>
                <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="pointOfContact">pointOfContact</gmd:CI_RoleCode>
              </gmd:role>
            </gmd:CI_ResponsibleParty>
          </gmd:distributorContact>
          <gmd:distributionOrderProcess>
            <gmd:MD_StandardOrderProcess>
              <gmd:fees>
                <gco:CharacterString>In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.</gco:CharacterString>
              </gmd:fees>
              <gmd:orderingInstructions>
                <gco:CharacterString>Contact NCEI for other distribution options and instructions.</gco:CharacterString>
              </gmd:orderingInstructions>
            </gmd:MD_StandardOrderProcess>
          </gmd:distributionOrderProcess>
          <gmd:distributorFormat>
            <gmd:MD_Format>
              <gmd:name>
                <gco:CharacterString>CSV</gco:CharacterString>
              </gmd:name>
              <gmd:version gco:nilReason="unknown" />
            </gmd:MD_Format>
          </gmd:distributorFormat>
          <gmd:distributorTransferOptions>
            <gmd:MD_DigitalTransferOptions>
              <gmd:transferSize>
                <gco:Real>13.516</gco:Real>
              </gmd:transferSize>
              <gmd:onLine>
                <gmd:CI_OnlineResource>
                  <gmd:linkage>
                    <gmd:URL>https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/9400165.html</gmd:URL>
                  </gmd:linkage>
                  <gmd:protocol>
                    <gco:CharacterString>HTTPS</gco:CharacterString>
                  </gmd:protocol>
                  <gmd:applicationProfile>
                    <gco:CharacterString>Web browser</gco:CharacterString>
                  </gmd:applicationProfile>
                  <gmd:name>
                    <gco:CharacterString>Project Metadata</gco:CharacterString>
                  </gmd:name>
                  <gmd:description>
                    <gco:CharacterString>Navigate directly to the URL for a descriptive web page with download links.</gco:CharacterString>
                  </gmd:description>
                  <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:onLine>
                <gmd:CI_OnlineResource>
                  <gmd:linkage>
                    <gmd:URL>https://doi.org/10.3334/cdiac/otg.ndp044</gmd:URL>
                  </gmd:linkage>
                  <gmd:protocol>
                    <gco:CharacterString>HTTPS</gco:CharacterString>
                  </gmd:protocol>
                  <gmd:applicationProfile>
                    <gco:CharacterString>Web browser</gco:CharacterString>
                  </gmd:applicationProfile>
                  <gmd:name>
                    <gco:CharacterString>NCEI Dataset Landing Page</gco:CharacterString>
                  </gmd:name>
                  <gmd:description>
                    <gco:CharacterString>Navigate directly to the URL for a descriptive web page with download links.</gco:CharacterString>
                  </gmd:description>
                  <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:onLine>
                <gmd:CI_OnlineResource>
                  <gmd:linkage>
                    <gmd:URL>https://www.ncei.noaa.gov/archive/accession/oas/9400165</gmd:URL>
                  </gmd:linkage>
                  <gmd:protocol>
                    <gco:CharacterString>HTTPS</gco:CharacterString>
                  </gmd:protocol>
                  <gmd:applicationProfile>
                    <gco:CharacterString>Web browser</gco:CharacterString>
                  </gmd:applicationProfile>
                  <gmd:name>
                    <gco:CharacterString>Descriptive Information</gco:CharacterString>
                  </gmd:name>
                  <gmd:description>
                    <gco:CharacterString>Navigate directly to the URL for a descriptive web page with download links.</gco:CharacterString>
                  </gmd:description>
                  <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:onLine>
                <gmd:CI_OnlineResource>
                  <gmd:linkage>
                    <gmd:URL>https://www.ncei.noaa.gov/archive/accession/download/9400165</gmd:URL>
                  </gmd:linkage>
                  <gmd:protocol>
                    <gco:CharacterString>HTTPS</gco:CharacterString>
                  </gmd:protocol>
                  <gmd:applicationProfile>
                    <gco:CharacterString>Web browser</gco:CharacterString>
                  </gmd:applicationProfile>
                  <gmd:name>
                    <gco:CharacterString>HTTPS</gco:CharacterString>
                  </gmd:name>
                  <gmd:description>
                    <gco:CharacterString>Navigate directly to the URL for data access and direct download.</gco:CharacterString>
                  </gmd:description>
                  <gmd:function>
                    <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="download">download</gmd:CI_OnLineFunctionCode>
                  </gmd:function>
                </gmd:CI_OnlineResource>
              </gmd:onLine>
              <gmd:onLine>
                <gmd:CI_OnlineResource>
                  <gmd:linkage>
                    <gmd:URL>ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0001/9400165/</gmd:URL>
                  </gmd:linkage>
                  <gmd:protocol>
                    <gco:CharacterString>FTP</gco:CharacterString>
                  </gmd:protocol>
                  <gmd:applicationProfile>
                    <gco:CharacterString>Any FTP client</gco:CharacterString>
                  </gmd:applicationProfile>
                  <gmd:name>
                    <gco:CharacterString>FTP</gco:CharacterString>
                  </gmd:name>
                  <gmd:description>
                    <gco:CharacterString>These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP).</gco:CharacterString>
                  </gmd:description>
                  <gmd:function>
                    <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="download">download</gmd:CI_OnLineFunctionCode>
                  </gmd:function>
                </gmd:CI_OnlineResource>
              </gmd:onLine>
            </gmd:MD_DigitalTransferOptions>
          </gmd:distributorTransferOptions>
        </gmd:MD_Distributor>
      </gmd:distributor>
    </gmd:MD_Distribution>
  </gmd:distributionInfo>
  <gmd:dataQualityInfo>
    <gmd:DQ_DataQuality>
      <gmd:scope>
        <gmd:DQ_Scope>
          <gmd:level>
            <gmd:MD_ScopeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ScopeCode" codeListValue="dataset">dataset</gmd:MD_ScopeCode>
          </gmd:level>
        </gmd:DQ_Scope>
      </gmd:scope>
      <gmd:lineage>
        <gmd:LI_Lineage>
          <gmd:processStep>
            <gmi:LE_ProcessStep>
              <gmd:description>
                <gco:CharacterString>NCEI Accession 9400165 v1.1 was published.</gco:CharacterString>
              </gmd:description>
              <gmd:dateTime>
                <gco:DateTime>2002-11-19T19:40:22Z</gco:DateTime>
              </gmd:dateTime>
              <gmi:output>
                <gmi:LE_Source>
                  <gmd:sourceCitation>
                    <gmd:CI_Citation>
                      <gmd:title>
                        <gco:CharacterString>NCEI Accession 9400165 v1.1</gco:CharacterString>
                      </gmd:title>
                      <gmd:date>
                        <gmd:CI_Date>
                          <gmd:date gco:nilReason="inapplicable" />
                          <gmd:dateType>
                            <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication">publication</gmd:CI_DateTypeCode>
                          </gmd:dateType>
                        </gmd:CI_Date>
                      </gmd:date>
                      <gmd:citedResponsibleParty>
                        <gmd:CI_ResponsibleParty>
                          <gmd:individualName gco:nilReason="inapplicable" />
                          <gmd:contactInfo>
                            <gmd:CI_Contact>
                              <gmd:onlineResource>
                                <gmd:CI_OnlineResource>
                                  <gmd:linkage>
                                    <gmd:URL>https://www.ncei.noaa.gov/archive/accession/9400165/1.1</gmd:URL>
                                  </gmd:linkage>
                                  <gmd:protocol>
                                    <gco:CharacterString>HTTPS</gco:CharacterString>
                                  </gmd:protocol>
                                  <gmd:name>
                                    <gco:CharacterString>NCEI Accession 9400165 v1.1</gco:CharacterString>
                                  </gmd:name>
                                  <gmd:description>
                                    <gco:CharacterString>published 2002-11-19T19:40:22Z</gco:CharacterString>
                                  </gmd:description>
                                  <gmd:function>
                                    <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="download">download</gmd:CI_OnLineFunctionCode>
                                  </gmd:function>
                                </gmd:CI_OnlineResource>
                              </gmd:onlineResource>
                            </gmd:CI_Contact>
                          </gmd:contactInfo>
                          <gmd:role gco:nilReason="inapplicable" />
                        </gmd:CI_ResponsibleParty>
                      </gmd:citedResponsibleParty>
                    </gmd:CI_Citation>
                  </gmd:sourceCitation>
                </gmi:LE_Source>
              </gmi:output>
            </gmi:LE_ProcessStep>
          </gmd:processStep>
          <gmd:processStep>
            <gmi:LE_ProcessStep>
              <gmd:description>
                <gco:CharacterString>NCEI Accession 9400165 was revised and v1.2 was published.</gco:CharacterString>
              </gmd:description>
              <gmd:rationale>
                <gco:CharacterString>Additional metadata files were received or created for this dataset. These updates were copied into the about/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.</gco:CharacterString>
              </gmd:rationale>
              <gmd:dateTime>
                <gco:DateTime>2013-03-19T15:39:07Z</gco:DateTime>
              </gmd:dateTime>
              <gmi:output>
                <gmi:LE_Source>
                  <gmd:sourceCitation>
                    <gmd:CI_Citation>
                      <gmd:title>
                        <gco:CharacterString>NCEI Accession 9400165 v1.2</gco:CharacterString>
                      </gmd:title>
                      <gmd:date>
                        <gmd:CI_Date>
                          <gmd:date gco:nilReason="inapplicable" />
                          <gmd:dateType>
                            <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication">publication</gmd:CI_DateTypeCode>
                          </gmd:dateType>
                        </gmd:CI_Date>
                      </gmd:date>
                      <gmd:citedResponsibleParty>
                        <gmd:CI_ResponsibleParty>
                          <gmd:individualName gco:nilReason="inapplicable" />
                          <gmd:contactInfo>
                            <gmd:CI_Contact>
                              <gmd:onlineResource>
                                <gmd:CI_OnlineResource>
                                  <gmd:linkage>
                                    <gmd:URL>https://www.ncei.noaa.gov/archive/accession/9400165/1.2</gmd:URL>
                                  </gmd:linkage>
                                  <gmd:protocol>
                                    <gco:CharacterString>HTTPS</gco:CharacterString>
                                  </gmd:protocol>
                                  <gmd:name>
                                    <gco:CharacterString>NCEI Accession 9400165 v1.2</gco:CharacterString>
                                  </gmd:name>
                                  <gmd:description>
                                    <gco:CharacterString>published 2013-03-19T15:39:07Z</gco:CharacterString>
                                  </gmd:description>
                                  <gmd:function>
                                    <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="download">download</gmd:CI_OnLineFunctionCode>
                                  </gmd:function>
                                </gmd:CI_OnlineResource>
                              </gmd:onlineResource>
                            </gmd:CI_Contact>
                          </gmd:contactInfo>
                          <gmd:role gco:nilReason="inapplicable" />
                        </gmd:CI_ResponsibleParty>
                      </gmd:citedResponsibleParty>
                    </gmd:CI_Citation>
                  </gmd:sourceCitation>
                </gmi:LE_Source>
              </gmi:output>
            </gmi:LE_ProcessStep>
          </gmd:processStep>
          <gmd:processStep>
            <gmi:LE_ProcessStep>
              <gmd:description>
                <gco:CharacterString>NCEI Accession 9400165 was revised and v2.3 was published.</gco:CharacterString>
              </gmd:description>
              <gmd:rationale>
                <gco:CharacterString>Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.</gco:CharacterString>
              </gmd:rationale>
              <gmd:dateTime>
                <gco:DateTime>2017-01-05T15:37:25Z</gco:DateTime>
              </gmd:dateTime>
              <gmi:output>
                <gmi:LE_Source>
                  <gmd:sourceCitation>
                    <gmd:CI_Citation>
                      <gmd:title>
                        <gco:CharacterString>NCEI Accession 9400165 v2.3</gco:CharacterString>
                      </gmd:title>
                      <gmd:date>
                        <gmd:CI_Date>
                          <gmd:date gco:nilReason="inapplicable" />
                          <gmd:dateType>
                            <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication">publication</gmd:CI_DateTypeCode>
                          </gmd:dateType>
                        </gmd:CI_Date>
                      </gmd:date>
                      <gmd:citedResponsibleParty>
                        <gmd:CI_ResponsibleParty>
                          <gmd:individualName gco:nilReason="inapplicable" />
                          <gmd:contactInfo>
                            <gmd:CI_Contact>
                              <gmd:onlineResource>
                                <gmd:CI_OnlineResource>
                                  <gmd:linkage>
                                    <gmd:URL>https://www.ncei.noaa.gov/archive/accession/9400165/2.3</gmd:URL>
                                  </gmd:linkage>
                                  <gmd:protocol>
                                    <gco:CharacterString>HTTPS</gco:CharacterString>
                                  </gmd:protocol>
                                  <gmd:name>
                                    <gco:CharacterString>NCEI Accession 9400165 v2.3</gco:CharacterString>
                                  </gmd:name>
                                  <gmd:description>
                                    <gco:CharacterString>published 2017-01-05T15:37:25Z</gco:CharacterString>
                                  </gmd:description>
                                  <gmd:function>
                                    <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="download">download</gmd:CI_OnLineFunctionCode>
                                  </gmd:function>
                                </gmd:CI_OnlineResource>
                              </gmd:onlineResource>
                            </gmd:CI_Contact>
                          </gmd:contactInfo>
                          <gmd:role gco:nilReason="inapplicable" />
                        </gmd:CI_ResponsibleParty>
                      </gmd:citedResponsibleParty>
                    </gmd:CI_Citation>
                  </gmd:sourceCitation>
                </gmi:LE_Source>
              </gmi:output>
            </gmi:LE_ProcessStep>
          </gmd:processStep>
        </gmd:LI_Lineage>
      </gmd:lineage>
    </gmd:DQ_DataQuality>
  </gmd:dataQualityInfo>
  <gmd:dataQualityInfo>
    <gmd:DQ_DataQuality>
      <gmd:scope>
        <gmd:DQ_Scope>
          <gmd:level>
            <gmd:MD_ScopeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ScopeCode" codeListValue="dataset">dataset</gmd:MD_ScopeCode>
          </gmd:level>
        </gmd:DQ_Scope>
      </gmd:scope>
      <gmd:lineage>
        <gmd:LI_Lineage>
          <gmd:processStep>
            <gmi:LE_ProcessStep>
              <gmd:description>
                <gco:CharacterString>Parameter or Variable: ATM_PRE;
Abbreviation: ATM_PRE;
Unit: MBAR;
Controlled vocabulary name: BAROMETRIC PRESSURE;
In-situ / Manipulation / Response variable: in-situ observation</gco:CharacterString>
              </gmd:description>
            </gmi:LE_ProcessStep>
          </gmd:processStep>
          <gmd:processStep>
            <gmi:LE_ProcessStep>
              <gmd:description>
                <gco:CharacterString>Parameter or Variable: SST;
Abbreviation: SST;
Unit: DEG_C;
Controlled vocabulary name: SEA SURFACE TEMPERATURE;
In-situ / Manipulation / Response variable: in-situ observation</gco:CharacterString>
              </gmd:description>
            </gmi:LE_ProcessStep>
          </gmd:processStep>
          <gmd:processStep>
            <gmi:LE_ProcessStep>
              <gmd:description>
                <gco:CharacterString>Parameter or Variable: XN2O;
Abbreviation: XN2O;
Unit: PPB;
Controlled vocabulary name: nitrous oxide (N2O);
In-situ / Manipulation / Response variable: in-situ observation</gco:CharacterString>
              </gmd:description>
            </gmi:LE_ProcessStep>
          </gmd:processStep>
          <gmd:processStep>
            <gmi:LE_ProcessStep>
              <gmd:description>
                <gco:CharacterString>Parameter or Variable: XCO2_AIR;
Abbreviation: XCO2_AIR;
Unit: PPM;
Controlled vocabulary name: Partial pressure (or fugacity) of carbon dioxide - atmosphere;
In-situ / Manipulation / Response variable: in-situ observation</gco:CharacterString>
              </gmd:description>
            </gmi:LE_ProcessStep>
          </gmd:processStep>
          <gmd:processStep>
            <gmi:LE_ProcessStep>
              <gmd:description>
                <gco:CharacterString>Parameter or Variable: XCO2_WAT;
Abbreviation: XCO2_WAT;
Unit: PPM;
Controlled vocabulary name: partial pressure of carbon dioxide - water;
In-situ / Manipulation / Response variable: in-situ observation</gco:CharacterString>
              </gmd:description>
            </gmi:LE_ProcessStep>
          </gmd:processStep>
        </gmd:LI_Lineage>
      </gmd:lineage>
    </gmd:DQ_DataQuality>
  </gmd:dataQualityInfo>
  <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="repository">repository</gmd:MD_ScopeCode>
          </gmd:level>
          <gmd:levelDescription>
            <gmd:MD_ScopeDescription>
              <gmd:other>
                <gco:CharacterString>NOAA National Centers for Environmental Information</gco:CharacterString>
              </gmd:other>
            </gmd:MD_ScopeDescription>
          </gmd:levelDescription>
        </gmd:DQ_Scope>
      </gmd:scope>
      <gmd:lineage>
        <gmd:LI_Lineage>
          <gmd:processStep>
            <gmi:LE_ProcessStep>
              <gmd:description>
                <gco:CharacterString>NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.</gco:CharacterString>
              </gmd:description>
              <gmd:dateTime>
                <gco:DateTime>2015-04-22T00:00:00</gco:DateTime>
              </gmd:dateTime>
            </gmi:LE_ProcessStep>
          </gmd:processStep>
        </gmd:LI_Lineage>
      </gmd:lineage>
    </gmd:DQ_DataQuality>
  </gmd:dataQualityInfo>
  <gmd:metadataMaintenance>
    <gmd:MD_MaintenanceInformation>
      <gmd:maintenanceAndUpdateFrequency>
        <gmd:MD_MaintenanceFrequencyCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_MaintenanceFrequencyCode" codeListValue="asNeeded">asNeeded</gmd:MD_MaintenanceFrequencyCode>
      </gmd:maintenanceAndUpdateFrequency>
      <gmd:maintenanceNote>
        <gco:CharacterString>Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness.</gco:CharacterString>
      </gmd:maintenanceNote>
      <gmd:contact>
        <gmd:CI_ResponsibleParty>
          <gmd:organisationName>
            <gco:CharacterString>NOAA National Centers for Environmental Information</gco:CharacterString>
          </gmd:organisationName>
          <gmd:role>
            <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="custodian">custodian</gmd:CI_RoleCode>
          </gmd:role>
        </gmd:CI_ResponsibleParty>
      </gmd:contact>
    </gmd:MD_MaintenanceInformation>
  </gmd:metadataMaintenance>
  <gmi:acquisitionInformation>
    <gmi:MI_AcquisitionInformation id="AMS">
      <gmi:instrument>
        <gmi:MI_Instrument id="inst_be58">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>carbon dioxide (CO2) gas analyzer</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:type>
            <gco:CharacterString>carbon dioxide (CO2) gas analyzer</gco:CharacterString>
          </gmi:type>
          <gmi:description>
            <gco:CharacterString>measures gaseous carbon dioxide

Carbon dioxide gas analyzer has often been referred to as LI-COR, because a lot of researchers choose to use products manufactured by LI-COR incorporation for their carbon dioxide measurement. The main component of a carbon dioxide analyzer is a nondispersive infrared (NDIR) spectroscopic sensors to detect CO2 in a gaseous environment by its characteristic absorption.

Carbon dioxide (CO2) gas analyzer works together with carbon dioxide (CO2) equilibrator (insttypes_id 184) to measure carbon dioxide in the water.

To measure water carbon dioxide, water needs to be continuously supplied to a showerhead inside an equilibrator. As the water flows through the equilibrator chamber, dissolved carbon dioxide exchanges quickly with air in the headspace. This air is then sampled by the carbon dioxide analyzer to determine the mole fraction of CO2 in water.</gco:CharacterString>
          </gmi:description>
        </gmi:MI_Instrument>
      </gmi:instrument>
      <gmi:instrument>
        <gmi:MI_Instrument id="inst_be57">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>showerhead equilibrator</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:type>
            <gco:CharacterString>showerhead equilibrator</gco:CharacterString>
          </gmi:type>
          <gmi:description>
            <gco:CharacterString>extracts dissolved CO2 from water

A carbon dioxide equilibrator is usually in the shape of a vertical tube, with a showerhead on the top, some headspace, a lot of beads to increase the surface exchange area between water and air, a water seal device at the bottom to allow water to overflow, but prevents air exchange between inside and outside.

Carbon dioxide (CO2) equilibrator works together with carbon dioxide (CO2) gas analyzer (insttypes_id 183) to measure carbon dioxide in the water.

To measure water carbon dioxide, water needs to be continuously supplied to a showerhead inside an equilibrator. As the water flows through the equilibrator chamber, dissolved carbon dioxide exchanges quickly with air in the headspace. This air is then sampled by the carbon dioxide analyzer to determine the mole fraction of CO2 in water.</gco:CharacterString>
          </gmi:description>
        </gmi:MI_Instrument>
      </gmi:instrument>
      <gmi:instrument>
        <gmi:MI_Instrument id="inst_be23">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>thin film type equilibrator for autonomous carbon dioxide (CO2) measurement</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:type>
            <gco:CharacterString>thin film type equilibrator for autonomous carbon dioxide (CO2) measurement</gco:CharacterString>
          </gmi:type>
          <gmi:description>
            <gco:CharacterString>Poisson et al. 1993</gco:CharacterString>
          </gmi:description>
        </gmi:MI_Instrument>
      </gmi:instrument>
      <gmi:platform>
        <gmi:MI_Platform id="plat_bd79">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>HUDSON</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:description>
            <gco:CharacterString>HUDSON</gco:CharacterString>
          </gmi:description>
          <gmi:instrument gco:nilReason="missing" />
        </gmi:MI_Platform>
      </gmi:platform>
      <gmi:platform>
        <gmi:MI_Platform id="plat_a5b4">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>NOAA Ship Malcolm Baldrige</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:description>
            <gco:CharacterString>Title: NOAA Ship
Flag: United States of America
Vessel Type: Research Vessel (Oceanographic)
DOB: 1968
IMO: 6901907
Hull Classification: OSS 03
Former Name: NOAA Ship RESEARCHER (1988)
Decommissioned by NOAA: 1996</gco:CharacterString>
          </gmi:description>
          <gmi:instrument gco:nilReason="missing" />
        </gmi:MI_Platform>
      </gmi:platform>
      <gmi:platform>
        <gmi:MI_Platform id="plat_b71b">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>R/V Knorr</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:description>
            <gco:CharacterString>Title: R/V
Flag: United States of America
Vessel Type: Research Vessel (Oceanographic)
DOB: 1970
IMO: 7738618
MMSI: 367246000</gco:CharacterString>
          </gmi:description>
          <gmi:instrument gco:nilReason="missing" />
        </gmi:MI_Platform>
      </gmi:platform>
      <gmi:platform>
        <gmi:MI_Platform id="plat_b4d5">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>R/V Melville</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:description>
            <gco:CharacterString>Hull Classification: AGOR-14.
It is a research vessel operated by Scripps Institution of Oceanography.
Commissioned on 10 July 1968 and the current status is active.

https://scripps.ucsd.edu/ships/melville</gco:CharacterString>
          </gmi:description>
          <gmi:instrument gco:nilReason="missing" />
        </gmi:MI_Platform>
      </gmi:platform>
      <gmi:platform>
        <gmi:MI_Platform id="plat_b026">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>R/V THOMAS G. THOMPSON</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:description>
            <gco:CharacterString>Use this platform for data attributed to R/V Thomas G. Thompson that were collected between July 1991 and present.

R/V Thomas G. Thompson (AGOR-23)
Owned by US Navy, leased to University of Washington.
Active dates: July 1991

(Source: http://www.navsource.org/archives/09/57/5723.htm, last accessed on 20 Dec 2011)</gco:CharacterString>
          </gmi:description>
          <gmi:instrument gco:nilReason="missing" />
        </gmi:MI_Platform>
      </gmi:platform>
      <gmi:platform>
        <gmi:MI_Platform id="plat_b36e">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>R/V WECOMA</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:description>
            <gco:CharacterString>R/V WECOMA is owned by the National Science Foundation and operated under a Cooperative Agreement by Oregon State University, College of Oceanic &amp; Atmospheric Sciences.</gco:CharacterString>
          </gmi:description>
          <gmi:instrument gco:nilReason="missing" />
        </gmi:MI_Platform>
      </gmi:platform>
      <gmi:platform>
        <gmi:MI_Platform id="plat_be0d">
          <gmi:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>RV Polarstern</gco:CharacterString>
              </gmd:code>
            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:description>
            <gco:CharacterString>Additional information provided by ICES on 7/9/2009:
Polarstern
Flag : GERMANY - DE (ISO Country Code)
Call Sign : DBLK
Title : Research vessel
IMO : 8013132
Commissioned Date : 1982-12-01
Current Length : 118
Built : 1982
Notes : Icebreaker rV
Information Source : http://www.awi.de/en/infrastructure/ships/polarstern/ ()
Lloyds URL : http://www.lloydsmiu.com/lmiu/vessels/overview.htm?vesselID=154010</gco:CharacterString>
          </gmi:description>
          <gmi:instrument gco:nilReason="missing" />
        </gmi:MI_Platform>
      </gmi:platform>
    </gmi:MI_AcquisitionInformation>
  </gmi:acquisitionInformation>
</gmi:MI_Metadata>