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                <ns2:CI_Date>
                  <ns2:date>
                    <ns3:Date>2007-08-27</ns3:Date>
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                <ns2:CI_ResponsibleParty>
                  <ns2:organisationName ns3:nilReason="withheld" />
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                    <ns2:CI_Contact>
                      <ns2:onlineResource>
                        <ns2:CI_OnlineResource>
                          <ns2:linkage>
                            <ns2:URL>https://epsg.org/crs_4326/WGS-84.html</ns2:URL>
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                            <ns3:CharacterString>GML of World Geodetic System 1984 coordinate reference system.</ns3:CharacterString>
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              <ns2:citedResponsibleParty ns4:title="EPSG Registry">
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                            <ns2:URL>https://epsg.org/home.html</ns2:URL>
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                            <ns3:CharacterString>Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations.</ns3:CharacterString>
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            <ns3:CharacterString>Vertical Datum: Unknown</ns3:CharacterString>
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          <ns2:title>
            <ns3:CharacterString>EM302 Water Column Sonar Data Collected During NA139</ns3:CharacterString>
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          <ns2:date>
            <ns2:CI_Date>
              <ns2:date>
                <ns3:Date>2022-05-06</ns3:Date>
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                <ns2:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="creation">creation</ns2:CI_DateTypeCode>
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          <ns2:date>
            <ns2:CI_Date>
              <ns2:date>
                <ns3:Date>2024-10-21</ns3:Date>
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                <ns2:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication">publication</ns2:CI_DateTypeCode>
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          <ns2:citedResponsibleParty ns4:title="principalInvestigator - OET Data Manager">
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          <ns2:citedResponsibleParty ns4:title="Rolling Deck to Repository">
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      <ns2:pointOfContact ns4:title="Water Column Sonar Data Manager (pointOfContact)">
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                <ns3:Decimal>20.69466</ns3:Decimal>
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          <ns2:temporalElement>
            <ns2:EX_TemporalExtent id="boundingTemporalExtent">
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                <ns5:TimePeriod ns5:id="time_span">
                  <ns5:beginPosition>2022-05-06T00:00:00</ns5:beginPosition>
                  <ns5:endPosition>2022-05-21T11:59:59</ns5:endPosition>
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        </ns2:EX_Extent>
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    </ns2:MD_DataIdentification>
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  <ns2:contentInfo>
    <ns0:MI_CoverageDescription>
      <ns2:attributeDescription>
        <ns3:RecordType>Trackline</ns3:RecordType>
      </ns2:attributeDescription>
      <ns2:contentType>
        <ns2:MD_CoverageContentTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_CoverageContentTypeCode" codeListValue="physicalMeasurement">physicalMeasurement</ns2:MD_CoverageContentTypeCode>
      </ns2:contentType>
    </ns0:MI_CoverageDescription>
  </ns2:contentInfo>
  <ns2:distributionInfo>
    <ns2:MD_Distribution>
      <ns2:distributor>
        <ns2:MD_Distributor>
          <ns2:distributorContact ns4:title="NCEI (distributor)">
            <ns2:CI_ResponsibleParty uuid="440b3ac2-64a5-46e2-9846-38305718b644">
              <ns2:organisationName>
                <ns3:CharacterString>NOAA National Centers for Environmental Information</ns3:CharacterString>
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              <ns2:contactInfo>
                <ns2:CI_Contact>
                  <ns2:address>
                    <ns2:CI_Address>
                      <ns2:electronicMailAddress>
                        <ns3:CharacterString>ncei.info@noaa.gov</ns3:CharacterString>
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                  <ns2:onlineResource>
                    <ns2:CI_OnlineResource>
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                        <ns2:URL>https://www.ncei.noaa.gov/contact</ns2:URL>
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                        <ns3:CharacterString>NCEI Contact Information</ns3:CharacterString>
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                      <ns2:description>
                        <ns3:CharacterString>Information for contacts at NCEI.</ns3:CharacterString>
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                      <ns2:function>
                        <ns2:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</ns2:CI_OnLineFunctionCode>
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                </ns2:CI_Contact>
              </ns2:contactInfo>
              <ns2:role>
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                <ns3:CharacterString>Free</ns3:CharacterString>
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              <ns2:orderingInstructions>
                <ns3:CharacterString>Contact the NCEI Water Column Sonar Data Manager to order data.</ns3:CharacterString>
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          <ns2:distributorFormat>
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                <ns3:CharacterString>EM302</ns3:CharacterString>
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              <ns2:version>
                <ns3:CharacterString>1</ns3:CharacterString>
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                <ns3:CharacterString />
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          <ns2:distributorTransferOptions>
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              <ns2:onLine>
                <ns2:CI_OnlineResource>
                  <ns2:linkage>
                    <ns2:URL>https://www.ncei.noaa.gov/maps/water-column-sonar/index.html?surveys=NA139&amp;instruments=EM302</ns2:URL>
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                  <ns2:protocol>
                    <ns3:CharacterString>HTTPS</ns3:CharacterString>
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                  <ns2:name>
                    <ns3:CharacterString>Water Column Sonar Data Map Viewer</ns3:CharacterString>
                  </ns2:name>
                  <ns2:description>
                    <ns3:CharacterString>Interactive map viewer to allow discovery and access to water column sonar data</ns3:CharacterString>
                  </ns2:description>
                  <ns2:function>
                    <ns2:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="search">search</ns2:CI_OnLineFunctionCode>
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                </ns2:CI_OnlineResource>
              </ns2:onLine>
            </ns2:MD_DigitalTransferOptions>
          </ns2:distributorTransferOptions>
          <ns2:distributorTransferOptions>
            <ns2:MD_DigitalTransferOptions>
              <ns2:onLine>
                <ns2:CI_OnlineResource>
                  <ns2:linkage>
                    <ns2:URL>https://registry.opendata.aws/ncei-wcsd-archive/</ns2:URL>
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                  <ns2:protocol>
                    <ns3:CharacterString>HTTPS</ns3:CharacterString>
                  </ns2:protocol>
                  <ns2:name>
                    <ns3:CharacterString>AWS Cloud Storage Bucket</ns3:CharacterString>
                  </ns2:name>
                  <ns2:description>
                    <ns3:CharacterString>AWS Cloud Storage to provide additional public access to water column sonar data through the NOAA Open Data Dissemination project (NODD)</ns3:CharacterString>
                  </ns2:description>
                  <ns2:function>
                    <ns2:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="download">download</ns2:CI_OnLineFunctionCode>
                  </ns2:function>
                </ns2:CI_OnlineResource>
              </ns2:onLine>
            </ns2:MD_DigitalTransferOptions>
          </ns2:distributorTransferOptions>
          <ns2:distributorTransferOptions>
            <ns2:MD_DigitalTransferOptions>
              <ns2:onLine>
                <ns2:CI_OnlineResource>
                  <ns2:linkage>
                    <ns2:URL>https://www.ngdc.noaa.gov/mgg/wcd/</ns2:URL>
                  </ns2:linkage>
                  <ns2:protocol>
                    <ns3:CharacterString>HTTPS</ns3:CharacterString>
                  </ns2:protocol>
                  <ns2:name>
                    <ns3:CharacterString>Water Column Sonar Data Archive Homepage</ns3:CharacterString>
                  </ns2:name>
                  <ns2:description>
                    <ns3:CharacterString>Web page containing information on the water column sonar data archive.</ns3:CharacterString>
                  </ns2:description>
                  <ns2:function>
                    <ns2:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</ns2:CI_OnLineFunctionCode>
                  </ns2:function>
                </ns2:CI_OnlineResource>
              </ns2:onLine>
            </ns2:MD_DigitalTransferOptions>
          </ns2:distributorTransferOptions>
        </ns2:MD_Distributor>
      </ns2:distributor>
    </ns2:MD_Distribution>
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                <ns3:CharacterString>Instrument calibration information</ns3:CharacterString>
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      <ns2:lineage>
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            <ns3:CharacterString>Unknown</ns3:CharacterString>
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            <ns3:CharacterString>Horizontal Positional Accuracy</ns3:CharacterString>
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            <ns2:DQ_ConformanceResult>
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                <ns3:CharacterString>Positional accuracy dependent on navigation GPS, ship motion correction, and sound velocity profile accuracy.</ns3:CharacterString>
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                <ns3:DateTime>2022-05-06T00:00:00</ns3:DateTime>
              </ns2:dateTime>
              <ns2:processor ns4:title="OET Data Manager">
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                  <ns2:organisationName>
                    <ns3:CharacterString>Ocean Exploration Trust</ns3:CharacterString>
                  </ns2:organisationName>
                  <ns2:positionName>
                    <ns3:CharacterString>Data Manager</ns3:CharacterString>
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                  <ns2:contactInfo>
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                        <ns2:CI_Telephone>
                          <ns2:voice>
                            <ns3:CharacterString />
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                      </ns2:phone>
                      <ns2:address>
                        <ns2:CI_Address>
                          <ns2:deliveryPoint>
                            <ns3:CharacterString />
                          </ns2:deliveryPoint>
                          <ns2:city>
                            <ns3:CharacterString />
                          </ns2:city>
                          <ns2:administrativeArea>
                            <ns3:CharacterString />
                          </ns2:administrativeArea>
                          <ns2:postalCode>
                            <ns3:CharacterString />
                          </ns2:postalCode>
                          <ns2:country>
                            <ns3:CharacterString />
                          </ns2:country>
                          <ns2:electronicMailAddress>
                            <ns3:CharacterString>datamanager@oet.org</ns3:CharacterString>
                          </ns2:electronicMailAddress>
                        </ns2:CI_Address>
                      </ns2:address>
                    </ns2:CI_Contact>
                  </ns2:contactInfo>
                  <ns2:role>
                    <ns2:CI_RoleCode codeList="http://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="principalInvestigator">principalInvestigator</ns2:CI_RoleCode>
                  </ns2:role>
                </ns2:CI_ResponsibleParty>
              </ns2:processor>
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          </ns2:processStep>
        </ns2:LI_Lineage>
      </ns2:lineage>
    </ns2:DQ_DataQuality>
  </ns2:dataQualityInfo>
  <ns0:acquisitionInformation>
    <ns0:MI_AcquisitionInformation>
      <ns0:instrument ns4:title="EM302">
        <ns0:MI_Instrument uuid="794feae0-679a-11e0-ae3e-0800200c9a66">
          <ns0:citation>
            <ns2:CI_Citation>
              <ns2:title>
                <ns3:CharacterString>Kongsberg EM302 Multibeam Echosounder</ns3:CharacterString>
              </ns2:title>
              <ns2:date ns3:nilReason="unknown" />
              <ns2:identifier>
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                  <ns2:code>
                    <ns3:CharacterString>EM302</ns3:CharacterString>
                  </ns2:code>
                </ns2:MD_Identifier>
              </ns2:identifier>
              <ns2:citedResponsibleParty>
                <ns2:CI_ResponsibleParty>
                  <ns2:organisationName>
                    <ns3:CharacterString>Kongsberg Maritime</ns3:CharacterString>
                  </ns2:organisationName>
                  <ns2:contactInfo>
                    <ns2:CI_Contact>
                      <ns2:phone>
                        <ns2:CI_Telephone>
                          <ns2:voice>
                            <ns3:CharacterString>+47 214 98 364</ns3:CharacterString>
                          </ns2:voice>
                          <ns2:facsimile>
                            <ns3:CharacterString>+47 322 85 014</ns3:CharacterString>
                          </ns2:facsimile>
                        </ns2:CI_Telephone>
                      </ns2:phone>
                      <ns2:address>
                        <ns2:CI_Address>
                          <ns2:deliveryPoint>
                            <ns3:CharacterString>P.O. Box 483</ns3:CharacterString>
                          </ns2:deliveryPoint>
                          <ns2:deliveryPoint>
                            <ns3:CharacterString>NO-3601</ns3:CharacterString>
                          </ns2:deliveryPoint>
                          <ns2:city>
                            <ns3:CharacterString>Kongsberg</ns3:CharacterString>
                          </ns2:city>
                          <ns2:country>
                            <ns3:CharacterString>Norway</ns3:CharacterString>
                          </ns2:country>
                          <ns2:electronicMailAddress>
                            <ns3:CharacterString>km.support@kongsberg.com</ns3:CharacterString>
                          </ns2:electronicMailAddress>
                        </ns2:CI_Address>
                      </ns2:address>
                      <ns2:onlineResource>
                        <ns2:CI_OnlineResource>
                          <ns2:linkage>
                            <ns2:URL>https://www.kongsberg.com/maritime/products/mapping-systems/mapping-systems/multibeam-echo-sounders/</ns2:URL>
                          </ns2:linkage>
                          <ns2:name>
                            <ns3:CharacterString>Kongsberg EM302 Multibeam Echosounder</ns3:CharacterString>
                          </ns2:name>
                          <ns2:description>
                            <ns3:CharacterString>Kongsberg EM302 Multibeam Echosounder information</ns3:CharacterString>
                          </ns2:description>
                          <ns2:function>
                            <ns2:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</ns2:CI_OnLineFunctionCode>
                          </ns2:function>
                        </ns2:CI_OnlineResource>
                      </ns2:onlineResource>
                    </ns2:CI_Contact>
                  </ns2:contactInfo>
                  <ns2:role>
                    <ns2:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="resourceProvider">resourceProvider</ns2:CI_RoleCode>
                  </ns2:role>
                </ns2:CI_ResponsibleParty>
              </ns2:citedResponsibleParty>
            </ns2:CI_Citation>
          </ns0:citation>
          <ns0:identifier>
            <ns2:MD_Identifier>
              <ns2:code>
                <ns3:CharacterString>Kongsberg EM302</ns3:CharacterString>
              </ns2:code>
            </ns2:MD_Identifier>
          </ns0:identifier>
          <ns0:type>
            <ns3:CharacterString>Multibeam Echosounder</ns3:CharacterString>
          </ns0:type>
          <ns0:description>
            <ns3:CharacterString>The state of the art 30 kHz EM 302 deep water multibeam sonar is manufactured by Kongsberg, Inc of Norway. The EM 302 transducers are modular linear arrays in a 
       Mills cross configuration with separate units for transmit and receive. This sonar offers significantly larger swath width, increased data density and resolution. Beam 
       focusing is applied both during reception and transmission. The system has up to 288 beams / 432 soundings per swath with pointing angles automatically adjusted 
       according to achievable coverage or operator defined limits. In multi-ping mode, 2 swaths are generated per ping cycle, with up to 864 soundings. With multi-ping the 
       transmit fan is duplicated and transmitted with a small difference in along track tilt. The applied tilt takes into account depth, coverage and vessel speed to give a 
       constant sounding separation along track. The beam spacing can be adjusted as equi-distant or equi-angular. EM 302 uses both CW pulses and FM sweep pulses with 
       pulse compression on reception, in order to increase the maximum useful swath width. The transmit fan is split in several individual sectors with independent active 
       steering according to accomplish compensation for the vessel movements: yaw, pitch and roll. The high density, high resolution, large coverage and water column 
       capability makes EM 302 an ideal system to explore the sea bed and the water column for detection and characterization of a broad spectrum of features.</ns3:CharacterString>
          </ns0:description>
        </ns0:MI_Instrument>
      </ns0:instrument>
      <ns0:operation>
        <ns0:MI_Operation>
          <ns0:identifier>
            <ns2:MD_Identifier>
              <ns2:code>
                <ns3:CharacterString>NA139_EM302</ns3:CharacterString>
              </ns2:code>
            </ns2:MD_Identifier>
          </ns0:identifier>
          <ns0:status>
            <ns2:MD_ProgressCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_ProgressCode" codeListValue="completed">completed</ns2:MD_ProgressCode>
          </ns0:status>
          <ns0:parentOperation ns3:nilReason="inapplicable" />
        </ns0:MI_Operation>
      </ns0:operation>
      <ns0:platform ns4:title="Nautilus">
        <ns0:MI_Platform xsi:schemaLocation="http://www.isotc211.org/2005/gmi https://data.noaa.gov/resources/iso19139/schema.xsd" uuid="c0ed39c0-225e-11e4-8c21-0800200c9a66">
          <ns0:citation>
            <ns2:CI_Citation>
              <ns2:title>
                <ns3:CharacterString>E/V Nautilus</ns3:CharacterString>
              </ns2:title>
              <ns2:date>
                <ns2:CI_Date>
                  <ns2:date>
                    <ns3:Date>1967</ns3:Date>
                  </ns2:date>
                  <ns2:dateType>
                    <ns2:CI_DateTypeCode codeListValue="creation" codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeSpace="001">creation</ns2:CI_DateTypeCode>
                  </ns2:dateType>
                </ns2:CI_Date>
              </ns2:date>
            </ns2:CI_Citation>
          </ns0:citation>
          <ns0:identifier>
            <ns2:MD_Identifier>
              <ns2:code>
                <ns3:CharacterString>Nautilus</ns3:CharacterString>
              </ns2:code>
            </ns2:MD_Identifier>
          </ns0:identifier>
          <ns0:description>
            <ns3:CharacterString>E/V Nautilus is a 64-meter exploration vessel with 17 permanent crew and berthing for a 31-member rotating Corps of Exploration. The ship carries with it two Remotely Operated Vehicles (ROVs) named Hercules and Argus that explore the seafloor in real-time online via our telepresence technology. Nautilus has a state-of-the-art hulled-mounted multibeam system. The ship also has a Data Lab and Wet Lab for processing digital data and physical samples. As part of our effort to share our expeditions with students and colleagues, we stream video from our ROVs and various locations on the ship live on our Nautilus Live website.</ns3:CharacterString>
          </ns0:description>
          <ns0:sponsor ns4:title="Bob Ballard (POC)">
            <ns2:CI_ResponsibleParty uuid="5625a792-dc58-4bf0-9f85-32ea61299479">
              <ns2:individualName>
                <ns3:CharacterString>Robert Ballard</ns3:CharacterString>
              </ns2:individualName>
              <ns2:contactInfo ns4:type="simple">
                <ns2:CI_Contact>
                  <ns2:phone ns4:type="simple">
                    <ns2:CI_Telephone>
                      <ns2:voice>
                        <ns3:CharacterString>401-874-6480</ns3:CharacterString>
                      </ns2:voice>
                      <ns2:facsimile>
                        <ns3:CharacterString>401-874-6169</ns3:CharacterString>
                      </ns2:facsimile>
                    </ns2:CI_Telephone>
                  </ns2:phone>
                  <ns2:address ns4:type="simple">
                    <ns2:CI_Address>
                      <ns2:deliveryPoint>
                        <ns3:CharacterString>URI</ns3:CharacterString>
                      </ns2:deliveryPoint>
                      <ns2:deliveryPoint>
                        <ns3:CharacterString>215 South Ferry Road</ns3:CharacterString>
                      </ns2:deliveryPoint>
                      <ns2:city>
                        <ns3:CharacterString>Narragansett</ns3:CharacterString>
                      </ns2:city>
                      <ns2:administrativeArea>
                        <ns3:CharacterString>RI</ns3:CharacterString>
                      </ns2:administrativeArea>
                      <ns2:postalCode>
                        <ns3:CharacterString>02882</ns3:CharacterString>
                      </ns2:postalCode>
                      <ns2:country>
                        <ns3:CharacterString>USA</ns3:CharacterString>
                      </ns2:country>
                      <ns2:electronicMailAddress>
                        <ns3:CharacterString>bballard@gso.uri.edu</ns3:CharacterString>
                      </ns2:electronicMailAddress>
                    </ns2:CI_Address>
                  </ns2:address>
                </ns2:CI_Contact>
              </ns2:contactInfo>
              <ns2:role>
                <ns2:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="principalInvestigator" codeSpace="008">principalInvestigator</ns2:CI_RoleCode>
              </ns2:role>
            </ns2:CI_ResponsibleParty>
          </ns0:sponsor>
          <ns0:instrument ns4:title="Kongsberg EM302 Multibeam Echosounder">
            <ns0:MI_Instrument uuid="794feae0-679a-11e0-ae3e-0800200c9a66">
              <ns0:citation>
                <ns2:CI_Citation>
                  <ns2:title>
                    <ns3:CharacterString>Kongsberg EM302 Multibeam Echosounder</ns3:CharacterString>
                  </ns2:title>
                  <ns2:date ns3:nilReason="unknown" />
                  <ns2:identifier>
                    <ns2:MD_Identifier>
                      <ns2:code>
                        <ns3:CharacterString>EM302</ns3:CharacterString>
                      </ns2:code>
                    </ns2:MD_Identifier>
                  </ns2:identifier>
                  <ns2:citedResponsibleParty>
                    <ns2:CI_ResponsibleParty>
                      <ns2:organisationName>
                        <ns3:CharacterString>Kongsberg Maritime</ns3:CharacterString>
                      </ns2:organisationName>
                      <ns2:contactInfo>
                        <ns2:CI_Contact>
                          <ns2:phone>
                            <ns2:CI_Telephone>
                              <ns2:voice>
                                <ns3:CharacterString>+47 214 98 364</ns3:CharacterString>
                              </ns2:voice>
                              <ns2:facsimile>
                                <ns3:CharacterString>+47 322 85 014</ns3:CharacterString>
                              </ns2:facsimile>
                            </ns2:CI_Telephone>
                          </ns2:phone>
                          <ns2:address>
                            <ns2:CI_Address>
                              <ns2:deliveryPoint>
                                <ns3:CharacterString>P.O. Box 483</ns3:CharacterString>
                              </ns2:deliveryPoint>
                              <ns2:deliveryPoint>
                                <ns3:CharacterString>NO-3601</ns3:CharacterString>
                              </ns2:deliveryPoint>
                              <ns2:city>
                                <ns3:CharacterString>Kongsberg</ns3:CharacterString>
                              </ns2:city>
                              <ns2:country>
                                <ns3:CharacterString>Norway</ns3:CharacterString>
                              </ns2:country>
                              <ns2:electronicMailAddress>
                                <ns3:CharacterString>km.support@kongsberg.com</ns3:CharacterString>
                              </ns2:electronicMailAddress>
                            </ns2:CI_Address>
                          </ns2:address>
                          <ns2:onlineResource>
                            <ns2:CI_OnlineResource>
                              <ns2:linkage>
                                <ns2:URL>https://www.kongsberg.com/maritime/products/mapping-systems/mapping-systems/multibeam-echo-sounders/</ns2:URL>
                              </ns2:linkage>
                              <ns2:name>
                                <ns3:CharacterString>Kongsberg EM302 Multibeam Echosounder</ns3:CharacterString>
                              </ns2:name>
                              <ns2:description>
                                <ns3:CharacterString>Kongsberg EM302 Multibeam Echosounder information</ns3:CharacterString>
                              </ns2:description>
                              <ns2:function>
                                <ns2:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</ns2:CI_OnLineFunctionCode>
                              </ns2:function>
                            </ns2:CI_OnlineResource>
                          </ns2:onlineResource>
                        </ns2:CI_Contact>
                      </ns2:contactInfo>
                      <ns2:role>
                        <ns2:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="resourceProvider">resourceProvider</ns2:CI_RoleCode>
                      </ns2:role>
                    </ns2:CI_ResponsibleParty>
                  </ns2:citedResponsibleParty>
                </ns2:CI_Citation>
              </ns0:citation>
              <ns0:identifier>
                <ns2:MD_Identifier>
                  <ns2:code>
                    <ns3:CharacterString>Kongsberg EM302</ns3:CharacterString>
                  </ns2:code>
                </ns2:MD_Identifier>
              </ns0:identifier>
              <ns0:type>
                <ns3:CharacterString>Multibeam Echosounder</ns3:CharacterString>
              </ns0:type>
              <ns0:description>
                <ns3:CharacterString>The state of the art 30 kHz EM 302 deep water multibeam sonar is manufactured by Kongsberg, Inc of Norway. The EM 302 transducers are modular linear arrays in a 
       Mills cross configuration with separate units for transmit and receive. This sonar offers significantly larger swath width, increased data density and resolution. Beam 
       focusing is applied both during reception and transmission. The system has up to 288 beams / 432 soundings per swath with pointing angles automatically adjusted 
       according to achievable coverage or operator defined limits. In multi-ping mode, 2 swaths are generated per ping cycle, with up to 864 soundings. With multi-ping the 
       transmit fan is duplicated and transmitted with a small difference in along track tilt. The applied tilt takes into account depth, coverage and vessel speed to give a 
       constant sounding separation along track. The beam spacing can be adjusted as equi-distant or equi-angular. EM 302 uses both CW pulses and FM sweep pulses with 
       pulse compression on reception, in order to increase the maximum useful swath width. The transmit fan is split in several individual sectors with independent active 
       steering according to accomplish compensation for the vessel movements: yaw, pitch and roll. The high density, high resolution, large coverage and water column 
       capability makes EM 302 an ideal system to explore the sea bed and the water column for detection and characterization of a broad spectrum of features.</ns3:CharacterString>
              </ns0:description>
            </ns0:MI_Instrument>
          </ns0:instrument>
        </ns0:MI_Platform>
      </ns0:platform>
    </ns0:MI_AcquisitionInformation>
  </ns0:acquisitionInformation>
</ns0:MI_Metadata>