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                    <gco:Date>2024</gco:Date>
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                    <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision">revision</gmd:CI_DateTypeCode>
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                        <gmd:CI_OnlineResource>
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                            <gmd:URL>https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords</gmd:URL>
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            <gmd:MD_RestrictionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
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          </gmd:otherConstraints>
        </gmd:MD_LegalConstraints>
      </gmd:resourceConstraints>
      <gmd:resourceConstraints xlink:title="Use Liability">
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            <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>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:resourceConstraints>
        <gmd:MD_LegalConstraints>
          <gmd:useLimitation>
            <gmd:MD_RestrictionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
          </gmd:useLimitation>
          <gmd:otherConstraints>
            <gco:CharacterString>Cite as: National Ocean Service (2013): NOAA/NOS and USCGS Seabed Descriptions from Hydrographic Surveys. NOAA National Centers for Environmental Information. doi:10.7289/V5BG2KWG [date of access]</gco:CharacterString>
          </gmd:otherConstraints>
        </gmd:MD_LegalConstraints>
      </gmd:resourceConstraints>
      <gmd:resourceConstraints>
        <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>Data are not to be used for navigation.</gco:CharacterString>
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        </gmd:MD_LegalConstraints>
      </gmd:resourceConstraints>
      <gmd:resourceConstraints>
        <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>The locations and descriptions for some surveys in this dataset that were digitized from smooth sheets are not the original values entered shipboard, they are approximations and are interpretations of the digitizer.</gco:CharacterString>
          </gmd:otherConstraints>
        </gmd:MD_LegalConstraints>
      </gmd:resourceConstraints>
      <gmd:resourceConstraints>
        <gmd:MD_LegalConstraints>
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          <gmd:otherConstraints>
            <gco:CharacterString>Access to this dataset is unrestricted.</gco:CharacterString>
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      </gmd:resourceConstraints>
      <gmd:resourceConstraints xlink:title="NCEI Copyright Statement">
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            <gco:CharacterString>Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States.</gco:CharacterString>
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      </gmd:resourceConstraints>
      <gmd:resourceConstraints>
        <gmd:MD_LegalConstraints>
          <gmd:useConstraints>
            <gmd:MD_RestrictionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
          </gmd:useConstraints>
          <gmd:otherConstraints>
            <gco:CharacterString>While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.</gco:CharacterString>
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        </gmd:MD_LegalConstraints>
      </gmd:resourceConstraints>
      <gmd:resourceConstraints>
        <gmd:MD_SecurityConstraints>
          <gmd:classification>
            <gmd:MD_ClassificationCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ClassificationCode" codeListValue="unclassified" codeSpace="">unclassified</gmd:MD_ClassificationCode>
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      <gmd:aggregationInfo>
        <gmd:MD_AggregateInformation>
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            <gmd:CI_Citation>
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                <gmd:CI_Date>
                  <gmd:date>
                    <gco:Date>2013-11-21</gco:Date>
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              </gmd:date>
              <gmd:citedResponsibleParty xlink:title="NCEI (publisher)">
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                <gmd:CI_Series>
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      <gmd:aggregationInfo>
        <gmd:MD_AggregateInformation>
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              </gmd:northBoundLatitude>
            </gmd:EX_GeographicBoundingBox>
          </gmd:geographicElement>
          <gmd:temporalElement>
            <gmd:EX_TemporalExtent id="boundingTemporalExtent">
              <gmd:extent>
                <gml:TimePeriod gml:id="TimePeriodID">
                  <gml:description>Sampling Dates</gml:description>
                  <gml:beginPosition>1837-01-01</gml:beginPosition>
                  <gml:endPosition>2013-11-21</gml:endPosition>
                </gml:TimePeriod>
              </gmd:extent>
            </gmd:EX_TemporalExtent>
          </gmd:temporalElement>
          <gmd:verticalElement>
            <gmd:EX_VerticalExtent id="boundingVerticalExtent">
              <gmd:minimumValue>
                <gco:Real>-200</gco:Real>
              </gmd:minimumValue>
              <gmd:maximumValue>
                <gco:Real>0</gco:Real>
              </gmd:maximumValue>
              <gmd:verticalCRS gco:nilReason="missing" />
            </gmd:EX_VerticalExtent>
          </gmd:verticalElement>
        </gmd:EX_Extent>
      </gmd:extent>
      <gmd:supplementalInformation>
        <gco:CharacterString>Historic data include survey id, sample number, latitude/longitude, original datum, and a brief description. Data for samples taken or coded after 2011, include the International Hydrographic Organization IHO S-57 descriptive attributes as described in the NOAA Office of the Coast Survey Specifications and Deliverables (see Appendix 10).</gco:CharacterString>
      </gmd:supplementalInformation>
    </gmd:MD_DataIdentification>
  </gmd:identificationInfo>
  <gmd:identificationInfo xlink:title="NOS Seabed Descriptions from Hydrographic Surveys ArcGIS Map Service">
    <srv:SV_ServiceIdentification xmlns:srv="http://www.isotc211.org/2005/srv" xsi:schemaLocation="http://www.isotc211.org/2005/gmi https://data.noaa.gov/resources/iso19139/schema.xsd" uuid="403c6eb1-3cbd-4d0d-a895-63578418f954">
      <gmd:citation>
        <gmd:CI_Citation>
          <gmd:title>
            <gco:CharacterString>NOS Seabed Descriptions from Hydrographic Surveys ArcGIS Map Service</gco:CharacterString>
          </gmd:title>
          <gmd:date>
            <gmd:CI_Date>
              <gmd:date>
                <gco:Date>2015-04-21</gco:Date>
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                <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="creation">creation</gmd:CI_DateTypeCode>
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          </gmd:date>
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            <gmd:CI_ResponsibleParty>
              <gmd:organisationName>
                <gco:CharacterString>NOAA National Centers for Environmental Information</gco:CharacterString>
              </gmd:organisationName>
              <gmd:contactInfo>
                <gmd:CI_Contact>
                  <gmd:onlineResource>
                    <gmd:CI_OnlineResource>
                      <gmd:linkage>
                        <gmd:URL>https://doi.org/10.7289/V5BG2KWG</gmd:URL>
                      </gmd:linkage>
                      <gmd:name>
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                      </gmd:name>
                      <gmd:description>
                        <gco:CharacterString>Please see website for more information about the data.</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>
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            </gmd:CI_ResponsibleParty>
          </gmd:citedResponsibleParty>
          <gmd:citedResponsibleParty>
            <gmd:CI_ResponsibleParty>
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                <gco:CharacterString>NOAA National Centers for Environmental Information</gco:CharacterString>
              </gmd:organisationName>
              <gmd:contactInfo>
                <gmd:CI_Contact>
                  <gmd:onlineResource>
                    <gmd:CI_OnlineResource>
                      <gmd:linkage>
                        <gmd:URL>https://noaa.maps.arcgis.com/home/item.html?id=ae8fee686cb640cb8c6edc047620c0ed</gmd:URL>
                      </gmd:linkage>
                      <gmd:name>
                        <gco:CharacterString>NOAA GeoPlatform Entry for NOS Seabed Descriptions from Hydrographic Surveys (dynamic map service)</gco:CharacterString>
                      </gmd:name>
                      <gmd:description>
                        <gco:CharacterString>NOAA GeoPlatform listing for NOS Seabed Descriptions from Hydrographic Surveys (dynamic map service)</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>
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                </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>
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            </gmd:CI_ResponsibleParty>
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          <gmd:citedResponsibleParty>
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                <gco:CharacterString>NOAA National Centers for Environmental Information</gco:CharacterString>
              </gmd:organisationName>
              <gmd:contactInfo>
                <gmd:CI_Contact>
                  <gmd:onlineResource>
                    <gmd:CI_OnlineResource>
                      <gmd:linkage>
                        <gmd:URL>https://noaa.maps.arcgis.com/home/item.html?id=a3993b18d46a498392d5052ec86a478e</gmd:URL>
                      </gmd:linkage>
                      <gmd:name>
                        <gco:CharacterString>NOAA GeoPlatform Entry for NOS Seabed Descriptions from Hydrographic Surveys (tile layer)</gco:CharacterString>
                      </gmd:name>
                      <gmd:description>
                        <gco:CharacterString>NOAA GeoPlatform listing for NOS Seabed Descriptions from Hydrographic Surveys (tile layer)</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>
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              <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>
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            </gmd:CI_ResponsibleParty>
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          <gmd:citedResponsibleParty>
            <gmd:CI_ResponsibleParty>
              <gmd:organisationName>
                <gco:CharacterString>NOAA National Centers for Environmental Information</gco:CharacterString>
              </gmd:organisationName>
              <gmd:contactInfo>
                <gmd:CI_Contact>
                  <gmd:onlineResource>
                    <gmd:CI_OnlineResource>
                      <gmd:linkage>
                        <gmd:URL>https://maps.ngdc.noaa.gov/viewers/marine_geology</gmd:URL>
                      </gmd:linkage>
                      <gmd:name>
                        <gco:CharacterString>Marine Geology Map Viewer</gco:CharacterString>
                      </gmd:name>
                      <gmd:description>
                        <gco:CharacterString>The interactive map viewer provides an interface to display and query the data.</gco:CharacterString>
                      </gmd:description>
                      <gmd:function>
                        <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="search">search</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:CI_Citation>
      </gmd:citation>
      <gmd:abstract>
        <gco:CharacterString>The NOS Seabed Map Service provides access to brief descriptions of the composition of the sea floor from over 200,000 locations, primarily in U.S. coastal areas. The descriptions were produced by the NOAA National Ocean Service (NOS), and its predecessor, the U.S. Coast and Geodetic Survey (USCGS), from small geologic samples that were collected during hydrographic surveys to determine bottom type for charting purposes.</gco:CharacterString>
      </gmd:abstract>
      <gmd:pointOfContact xlink:title="NCEI GIS Team">
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            <gco:CharacterString>NCEI GIS Team</gco:CharacterString>
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          <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.gis@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:pointOfContact>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gco:CharacterString>DATA ANALYSIS AND VISUALIZATION &gt; GEOGRAPHIC INFORMATION SYSTEMS &gt; WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>DATA MANAGEMENT/DATA HANDLING &gt; DATA SEARCH AND RETRIEVAL</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>DATA ANALYSIS AND VISUALIZATION &gt; VISUALIZATION/IMAGE PROCESSING</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 xlink:title="NASA/Global Change Master Directory (GCMD) Earth Science Services Keywords">
            <gmd:CI_Citation uuid="9f0de6e7-428b-11df-9879-0800200c9a66">
              <gmd:title>
                <gco:CharacterString>Global Change Master Directory (GCMD) Service Keywords</gco:CharacterString>
              </gmd:title>
              <gmd:date>
                <gmd:CI_Date>
                  <gmd:date>
                    <gco:Date>2020-01-09</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>
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                </gmd:CI_Date>
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              </gmd:edition>
              <gmd:citedResponsibleParty xlink:title="GCMD Landing Page">
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                  <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:onlineResource>
                        <gmd:CI_OnlineResource>
                          <gmd:linkage>
                            <gmd:URL>https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords</gmd:URL>
                          </gmd:linkage>
                          <gmd:name>
                            <gco:CharacterString>GCMD Keyword Forum Page</gco:CharacterString>
                          </gmd:name>
                          <gmd:description>
                            <gco:CharacterString>Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. 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>
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                </gmd:CI_ResponsibleParty>
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            </gmd:CI_Citation>
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      </gmd:descriptiveKeywords>
      <gmd:resourceConstraints>
        <gmd:MD_Constraints>
          <gmd:useLimitation>
            <gco:CharacterString>Please credit individual participating institutions for underlying data and images and the NOAA National Centers for Environmental Information (NCEI) for the database and map viewer.</gco:CharacterString>
          </gmd:useLimitation>
        </gmd:MD_Constraints>
      </gmd:resourceConstraints>
      <srv:serviceType>
        <gco:LocalName>ArcGIS Map Service</gco:LocalName>
      </srv:serviceType>
      <srv:serviceTypeVersion>
        <gco:CharacterString>10.7</gco:CharacterString>
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      <srv:extent>
        <gmd:EX_Extent>
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            <gmd:EX_GeographicBoundingBox>
              <gmd:extentTypeCode>
                <gco:Boolean>1</gco:Boolean>
              </gmd:extentTypeCode>
              <gmd:westBoundLongitude>
                <gco:Decimal>-180</gco:Decimal>
              </gmd:westBoundLongitude>
              <gmd:eastBoundLongitude>
                <gco:Decimal>180</gco:Decimal>
              </gmd:eastBoundLongitude>
              <gmd:southBoundLatitude>
                <gco:Decimal>-90</gco:Decimal>
              </gmd:southBoundLatitude>
              <gmd:northBoundLatitude>
                <gco:Decimal>90</gco:Decimal>
              </gmd:northBoundLatitude>
            </gmd:EX_GeographicBoundingBox>
          </gmd:geographicElement>
        </gmd:EX_Extent>
      </srv:extent>
      <srv:couplingType>
        <srv:SV_CouplingType codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#SV_CouplingType" codeListValue="tight">tight</srv:SV_CouplingType>
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        <srv:SV_OperationMetadata>
          <srv:operationName>
            <gco:CharacterString>ArcGIS Server REST endpoint for tile layer</gco:CharacterString>
          </srv:operationName>
          <srv:DCP gco:nilReason="unknown" />
          <srv:connectPoint>
            <gmd:CI_OnlineResource>
              <gmd:linkage>
                <gmd:URL>https://tiles.arcgis.com/tiles/C8EMgrsFcRFL6LrL/arcgis/rest/services/nos_seabed/MapServer</gmd:URL>
              </gmd:linkage>
              <gmd:protocol>
                <gco:CharacterString>https</gco:CharacterString>
              </gmd:protocol>
              <gmd:applicationProfile>
                <gco:CharacterString>http://www.geoplatform.gov/spec/esri-map-rest</gco:CharacterString>
              </gmd:applicationProfile>
              <gmd:name>
                <gco:CharacterString>NOS Seabed Descriptions from Hydrographic Surveys ArcGIS tile layer</gco:CharacterString>
              </gmd:name>
              <gmd:description>
                <gco:CharacterString>REST endpoint for NOS Seabed Descriptions from Hydrographic Surveys ArcGIS tile layer (Web Mercator projection)</gco:CharacterString>
              </gmd:description>
              <gmd:function>
                <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="search">search</gmd:CI_OnLineFunctionCode>
              </gmd:function>
            </gmd:CI_OnlineResource>
          </srv:connectPoint>
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      </srv:containsOperations>
      <srv:containsOperations>
        <srv:SV_OperationMetadata>
          <srv:operationName>
            <gco:CharacterString>ArcGIS Server REST endpoint for dynamic map service</gco:CharacterString>
          </srv:operationName>
          <srv:DCP gco:nilReason="unknown" />
          <srv:connectPoint>
            <gmd:CI_OnlineResource>
              <gmd:linkage>
                <gmd:URL>https://gis.ngdc.noaa.gov/arcgis/rest/services/web_mercator/nos_seabed_dynamic/MapServer</gmd:URL>
              </gmd:linkage>
              <gmd:protocol>
                <gco:CharacterString>https</gco:CharacterString>
              </gmd:protocol>
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                <gco:CharacterString>http://www.geoplatform.gov/spec/esri-map-rest</gco:CharacterString>
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              </gmd:name>
              <gmd:description>
                <gco:CharacterString>REST endpoint for NOS Seabed Descriptions from Hydrographic Surveys ArcGIS dynamic map service</gco:CharacterString>
              </gmd:description>
              <gmd:function>
                <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="search">search</gmd:CI_OnLineFunctionCode>
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            </gmd:CI_OnlineResource>
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      <srv:containsOperations>
        <srv:SV_OperationMetadata>
          <srv:operationName>
            <gco:CharacterString>WMS Get Capabilities</gco:CharacterString>
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          <srv:DCP />
          <srv:connectPoint>
            <gmd:CI_OnlineResource>
              <gmd:linkage>
                <gmd:URL>https://gis.ngdc.noaa.gov/arcgis/services/web_mercator/nos_seabed_dynamic/MapServer/WMSServer?request=GetCapabilities&amp;service=WMS</gmd:URL>
              </gmd:linkage>
              <gmd:protocol>
                <gco:CharacterString>http</gco:CharacterString>
              </gmd:protocol>
              <gmd:applicationProfile>
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              </gmd:applicationProfile>
              <gmd:name>
                <gco:CharacterString>NOS Seabed Descriptions from Hydrographic Surveys Web Map Service (WMS)</gco:CharacterString>
              </gmd:name>
              <gmd:description>
                <gco:CharacterString>Capabilities document for Open Geospatial Consortium Web Map Service for NOS Seabed Descriptions from Hydrographic Surveys</gco:CharacterString>
              </gmd:description>
              <gmd:function>
                <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="search">search</gmd:CI_OnLineFunctionCode>
              </gmd:function>
            </gmd:CI_OnlineResource>
          </srv:connectPoint>
        </srv:SV_OperationMetadata>
      </srv:containsOperations>
    </srv:SV_ServiceIdentification>
  </gmd:identificationInfo>
  <!-- decimal latitude/longitude, xy position of sample collection location -->
  <gmd:contentInfo xlink:title="point">
    <gmd:MD_CoverageDescription xsi:schemaLocation="http://www.isotc211.org/2005/gmi https://data.noaa.gov/resources/iso19139/schema.xsd" id="samplingLatitudeLongitude" uuid="4e41adb1-b94c-431c-abbe-e1bdcffa8953">
      <gmd:attributeDescription>
        <gco:RecordType>The Latitude and Longitude (point) from which a sample of sediment or rock was collected from the sea floor or a lakebed.</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType>
        <gmd:MD_CoverageContentTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_CoverageContentTypeCode" codeListValue="point">point</gmd:MD_CoverageContentTypeCode>
      </gmd:contentType>
      <gmd:dimension>
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            <gco:MemberName>
              <gco:aName>
                <gco:CharacterString>Latitude</gco:CharacterString>
              </gco:aName>
              <gco:attributeType gco:nilReason="unknown" />
            </gco:MemberName>
          </gmd:sequenceIdentifier>
          <gmd:descriptor>
            <gco:CharacterString>Distance measured north or south from the equator. Distance north is positive, distance south is negative.</gco:CharacterString>
          </gmd:descriptor>
          <gmd:maxValue>
            <gco:Real>90.00000</gco:Real>
          </gmd:maxValue>
          <gmd:minValue>
            <gco:Real>-90.00000</gco:Real>
          </gmd:minValue>
          <gmd:units>
            <gml:UnitDefinition gml:id="d1e1680">
              <gml:identifier codeSpace="local">decimal degrees</gml:identifier>
              <gml:name>decimal degrees</gml:name>
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          </gmd:units>
        </gmd:MD_Band>
      </gmd:dimension>
      <gmd:dimension>
        <gmd:MD_Band>
          <gmd:sequenceIdentifier>
            <gco:MemberName>
              <gco:aName>
                <gco:CharacterString>Longitude</gco:CharacterString>
              </gco:aName>
              <gco:attributeType gco:nilReason="unknown" />
            </gco:MemberName>
          </gmd:sequenceIdentifier>
          <gmd:descriptor>
            <gco:CharacterString>Longitude is measured from the Prime Meridian (which is the north/south line that runs through Greenwich, England), values measured east are positive and values measured west are negative.</gco:CharacterString>
          </gmd:descriptor>
          <gmd:maxValue>
            <gco:Real>180.00000</gco:Real>
          </gmd:maxValue>
          <gmd:minValue>
            <gco:Real>-180.00000</gco:Real>
          </gmd:minValue>
          <gmd:units>
            <gml:UnitDefinition gml:id="d1e1958">
              <gml:identifier codeSpace="local">decimal degrees</gml:identifier>
              <gml:name>decimal degrees</gml:name>
            </gml:UnitDefinition>
          </gmd:units>
        </gmd:MD_Band>
      </gmd:dimension>
    </gmd:MD_CoverageDescription>
  </gmd:contentInfo>
  <gmd:contentInfo>
    <gmi:MI_CoverageDescription>
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