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It was built from numerous global and regional data sets. This is the &#39;Ice Surface&#39; version, with the top of the Antarctic and Greenland ice sheets. The horizontal datum is WGS-84, the vertical datum is Mean Sea Level. Keywords: Bathymetry, Digital Elevation. This is the grid/node-registered version: the dataset&#39;s latitude and longitude values mark the centers of the cells.</gco:CharacterString>\n      </gmd:abstract>\n      <srv:serviceType>\n        <gco:LocalName>OPeNDAP</gco:LocalName>\n      </srv:serviceType>\n      <srv:extent>\n        <gmd:EX_Extent>\n          <gmd:geographicElement>\n            <gmd:EX_GeographicBoundingBox>\n              <gmd:extentTypeCode>\n                <gco:Boolean>1</gco:Boolean>\n              </gmd:extentTypeCode>\n              <gmd:westBoundLongitude>\n                <gco:Decimal>-180.0</gco:Decimal>\n              </gmd:westBoundLongitude>\n              <gmd:eastBoundLongitude>\n                <gco:Decimal>180.0</gco:Decimal>\n              </gmd:eastBoundLongitude>\n              <gmd:southBoundLatitude>\n                <gco:Decimal>-90.0</gco:Decimal>\n              </gmd:southBoundLatitude>\n              <gmd:northBoundLatitude>\n                <gco:Decimal>90.0</gco:Decimal>\n              </gmd:northBoundLatitude>\n            </gmd:EX_GeographicBoundingBox>\n          </gmd:geographicElement>\n        </gmd:EX_Extent>\n      </srv:extent>\n      <srv:couplingType>\n        <srv:SV_CouplingType codeList=\"https://data.noaa.gov/ISO19139/resources/codeList.xml#SV_CouplingType\" codeListValue=\"tight\">tight</srv:SV_CouplingType>\n      </srv:couplingType>\n      <srv:containsOperations>\n        <srv:SV_OperationMetadata>\n          <srv:operationName>\n            <gco:CharacterString>OPeNDAPDatasetQueryAndAccess</gco:CharacterString>\n          </srv:operationName>\n          <srv:DCP gco:nilReason=\"unknown\"/>\n          <srv:connectPoint>\n            <gmd:CI_OnlineResource>\n              <gmd:linkage>\n                <gmd:URL>https://gcoos5.geos.tamu.edu/erddap/griddap/etopo180</gmd:URL>\n              </gmd:linkage>\n              <gmd:protocol>\n                <gco:CharacterString>OPeNDAP:OPeNDAP</gco:CharacterString>\n              </gmd:protocol>\n              <gmd:name>\n                <gco:CharacterString>OPeNDAP</gco:CharacterString>\n              </gmd:name>\n              <gmd:description>\n                <gco:CharacterString>An OPeNDAP service for gridded data. Add different extensions (e.g., .html, .das, .dds) to the base URL for different purposes.</gco:CharacterString>\n              </gmd:description>\n              <gmd:function>\n                <gmd:CI_OnLineFunctionCode codeList=\"http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode\" codeListValue=\"download\">download</gmd:CI_OnLineFunctionCode>\n              </gmd:function>\n            </gmd:CI_OnlineResource>\n          </srv:connectPoint>\n        </srv:SV_OperationMetadata>\n      </srv:containsOperations>\n      <srv:operatesOn xlink:href=\"#DataIdentification\"/>\n    </srv:SV_ServiceIdentification>\n  </gmd:identificationInfo>\n  <gmd:identificationInfo>\n    <srv:SV_ServiceIdentification id=\"OGC-WMS\">\n      <gmd:citation>\n        <gmd:CI_Citation>\n          <gmd:title>\n            <gco:CharacterString>Topography, ETOPO1, 0.0166667 degrees, Global (longitude -180 to 180), (Ice Sheet Surface)</gco:CharacterString>\n          </gmd:title>\n          <gmd:date>\n            <gmd:CI_Date>\n              <gmd:date>\n                <gco:Date>2026-11-04</gco:Date>\n              </gmd:date>\n              <gmd:dateType>\n                <gmd:CI_DateTypeCode codeList=\"https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#gmd:CI_DateTypeCode\" codeListValue=\"creation\">creation</gmd:CI_DateTypeCode>\n              </gmd:dateType>\n            </gmd:CI_Date>\n          </gmd:date>\n          <gmd:citedResponsibleParty>\n            <gmd:CI_ResponsibleParty>\n              <gmd:individualName gco:nilReason=\"missing\"/>\n              <gmd:organisationName>\n                <gco:CharacterString>NOAA NGDC</gco:CharacterString>\n              </gmd:organisationName>\n              <gmd:contactInfo>\n                <gmd:CI_Contact>\n                  <gmd:address>\n                    <gmd:CI_Address>\n                      <gmd:electronicMailAddress>\n                        <gco:CharacterString>Barry.Eakins@noaa.gov </gco:CharacterString>\n                      </gmd:electronicMailAddress>\n                    </gmd:CI_Address>\n                  </gmd:address>\n                  <gmd:onlineResource>\n                    <gmd:CI_OnlineResource>\n                      <gmd:linkage>\n                        <gmd:URL>https://www.ngdc.noaa.gov/mgg/global/global.html</gmd:URL>\n                      </gmd:linkage>\n                      <gmd:protocol>\n                        <gco:CharacterString>information</gco:CharacterString>\n                      </gmd:protocol>\n                      <gmd:applicationProfile>\n                        <gco:CharacterString>web browser</gco:CharacterString>\n                      </gmd:applicationProfile>\n                      <gmd:name>\n                        <gco:CharacterString>Background Information</gco:CharacterString>\n                      </gmd:name>\n                      <gmd:description>\n                        <gco:CharacterString>Background information from the source</gco:CharacterString>\n                      </gmd:description>\n                      <gmd:function>\n                        <gmd:CI_OnLineFunctionCode codeList=\"https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#gmd:CI_OnLineFunctionCode\" codeListValue=\"information\">information</gmd:CI_OnLineFunctionCode>\n                      </gmd:function>\n                    </gmd:CI_OnlineResource>\n                  </gmd:onlineResource>\n                </gmd:CI_Contact>\n              </gmd:contactInfo>\n              <gmd:role>\n                <gmd:CI_RoleCode codeList=\"https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#gmd:CI_RoleCode\" codeListValue=\"originator\">originator</gmd:CI_RoleCode>\n              </gmd:role>\n            </gmd:CI_ResponsibleParty>\n          </gmd:citedResponsibleParty>\n          <gmd:citedResponsibleParty>\n            <gmd:CI_ResponsibleParty>\n              <gmd:individualName gco:nilReason=\"missing\"/>\n              <gmd:organisationName>\n                <gco:CharacterString>GLOBE, SRTM30, Baltic Sea Bathymetry, Caspian Sea Bathymetry, Great Lakes Bathymetry, Gulf of California Bathymetry, IBCAO, JODC Bathymetry, Mediterranean Sea Bathymetry, U.S. Coastal Relief Model (CRM), Antarctica RAMP Topography, Antarctic Digital Database, GSHHS</gco:CharacterString>\n              </gmd:organisationName>\n              <gmd:contactInfo gco:nilReason=\"missing\"/>\n              <gmd:role>\n                <gmd:CI_RoleCode codeList=\"https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#gmd:CI_RoleCode\" codeListValue=\"contributor\">contributor</gmd:CI_RoleCode>\n              </gmd:role>\n            </gmd:CI_ResponsibleParty>\n          </gmd:citedResponsibleParty>\n        </gmd:CI_Citation>\n      </gmd:citation>\n      <gmd:abstract>\n        <gco:CharacterString>ETOPO1 is a 1 arc-minute global relief model of Earth&#39;s surface that integrates land topography and ocean bathymetry. It was built from numerous global and regional data sets. This is the &#39;Ice Surface&#39; version, with the top of the Antarctic and Greenland ice sheets. The horizontal datum is WGS-84, the vertical datum is Mean Sea Level. Keywords: Bathymetry, Digital Elevation. This is the grid/node-registered version: the dataset&#39;s latitude and longitude values mark the centers of the cells.</gco:CharacterString>\n      </gmd:abstract>\n      <srv:serviceType>\n        <gco:LocalName>Open Geospatial Consortium Web Map Service (WMS)</gco:LocalName>\n      </srv:serviceType>\n      <srv:extent>\n        <gmd:EX_Extent>\n          <gmd:geographicElement>\n            <gmd:EX_GeographicBoundingBox>\n              <gmd:extentTypeCode>\n                <gco:Boolean>1</gco:Boolean>\n              </gmd:extentTypeCode>\n              <gmd:westBoundLongitude>\n                <gco:Decimal>-180.0</gco:Decimal>\n              </gmd:westBoundLongitude>\n              <gmd:eastBoundLongitude>\n                <gco:Decimal>180.0</gco:Decimal>\n              </gmd:eastBoundLongitude>\n              <gmd:southBoundLatitude>\n                <gco:Decimal>-90.0</gco:Decimal>\n              </gmd:southBoundLatitude>\n              <gmd:northBoundLatitude>\n                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gco:nilReason=\"unknown\"/>\n      <gmd:contentType>\n        <gmd:MD_CoverageContentTypeCode codeList=\"https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#gmd:MD_CoverageContentTypeCode\" codeListValue=\"physicalMeasurement\">physicalMeasurement</gmd:MD_CoverageContentTypeCode>\n      </gmd:contentType>\n      <gmd:dimension>\n        <gmd:MD_Band>\n          <gmd:sequenceIdentifier>\n            <gco:MemberName>\n              <gco:aName>\n                <gco:CharacterString>altitude</gco:CharacterString>\n              </gco:aName>\n              <gco:attributeType>\n                <gco:TypeName>\n                  <gco:aName>\n                    <gco:CharacterString>short</gco:CharacterString>\n                  </gco:aName>\n                </gco:TypeName>\n              </gco:attributeType>\n            </gco:MemberName>\n          </gmd:sequenceIdentifier>\n          <gmd:descriptor>\n            <gco:CharacterString>Altitude</gco:CharacterString>\n          </gmd:descriptor>\n          <gmd:units xlink:href=\"https://unitsofmeasure.org/ucum.html#m\"/>\n        </gmd:MD_Band>\n      </gmd:dimension>\n    </gmi:MI_CoverageDescription>\n  </gmd:contentInfo>\n  <gmd:distributionInfo>\n    <gmd:MD_Distribution>\n      <gmd:distributor>\n        <gmd:MD_Distributor>\n          <gmd:distributorContact>\n            <gmd:CI_ResponsibleParty>\n              <gmd:individualName>\n                <gco:CharacterString>Tuomo Saari</gco:CharacterString>\n              </gmd:individualName>\n              <gmd:organisationName>\n                <gco:CharacterString>TAMU</gco:CharacterString>\n              </gmd:organisationName>\n              <gmd:contactInfo>\n                <gmd:CI_Contact>\n                  <gmd:phone>\n                    <gmd:CI_Telephone>\n                      <gmd:voice>\n                        <gco:CharacterString>+1 979-979-9799</gco:CharacterString>\n         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</gmd:distributorFormat>\n          <gmd:distributorTransferOptions>\n            <gmd:MD_DigitalTransferOptions>\n              <gmd:onLine>\n                <gmd:CI_OnlineResource>\n                  <gmd:linkage>\n                    <gmd:URL>https://gcoos5.geos.tamu.edu/erddap/griddap/etopo180.html</gmd:URL>\n                  </gmd:linkage>\n                  <gmd:protocol>\n                    <gco:CharacterString>order</gco:CharacterString>\n                  </gmd:protocol>\n                  <gmd:name>\n                    <gco:CharacterString>Data Subset Form</gco:CharacterString>\n                  </gmd:name>\n                  <gmd:description>\n                    <gco:CharacterString>ERDDAP's version of the OPeNDAP .html web page for this dataset. 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Create an image with a map or graph of a subset of the data.</gco:CharacterString>\n                  </gmd:description>\n                  <gmd:function>\n                    <gmd:CI_OnLineFunctionCode codeList=\"http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode\" codeListValue=\"mapDigital\">mapDigital</gmd:CI_OnLineFunctionCode>\n                  </gmd:function>\n                </gmd:CI_OnlineResource>\n              </gmd:onLine>\n            </gmd:MD_DigitalTransferOptions>\n          </gmd:distributorTransferOptions>\n        </gmd:MD_Distributor>\n      </gmd:distributor>\n    </gmd:MD_Distribution>\n  </gmd:distributionInfo>\n  <gmd:dataQualityInfo>\n    <gmd:DQ_DataQuality>\n      <gmd:scope>\n        <gmd:DQ_Scope>\n          <gmd:level>\n            <gmd:MD_ScopeCode codeList=\"https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#gmd:MD_ScopeCode\" codeListValue=\"dataset\">dataset</gmd:MD_ScopeCode>\n          </gmd:level>\n        </gmd:DQ_Scope>\n      </gmd:scope>\n      <gmd:lineage>\n        <gmd:LI_Lineage>\n          <gmd:statement>\n            <gco:CharacterString>2011-03-14 Downloaded https://www.ngdc.noaa.gov/mgg/global/relief/ETOPO1/data/ice_surface/grid_registered/binary/etopo1_ice_g_i2.zip</gco:CharacterString>\n          </gmd:statement>\n        </gmd:LI_Lineage>\n      </gmd:lineage>\n    </gmd:DQ_DataQuality>\n  </gmd:dataQualityInfo>\n  <gmd:metadataMaintenance>\n    <gmd:MD_MaintenanceInformation>\n      <gmd:maintenanceAndUpdateFrequency gco:nilReason=\"unknown\"/>\n      <gmd:maintenanceNote>\n        <gco:CharacterString>This record was created from dataset metadata by ERDDAP Version 2.30.0</gco:CharacterString>\n      </gmd:maintenanceNote>\n    </gmd:MD_MaintenanceInformation>\n  </gmd:metadataMaintenance>\n</gmi:MI_Metadata>","notes_translation_method":{"en":""},"relationships_as_subject":[],"title_translation_method":{"en":""},"metadata-point-of-contact":[{"role":"pointOfContact","individual-name":"","organisation-name":"NOAA NGDC","contact-info_email":"Barry.Eakins@noaa.gov"}],"included_in_data_catalogue":[{"url":"https://catalogue.cioos.ca","name":"Seatalogue","description":""}],"keywords_translation_method":{"en":""}}}