<?xml version="1.0" encoding="UTF-8"?><ns1:descriptiveReportMemo xmlns:ns1="http://svn.pydro.noaa.gov/2017/01/DR_Memo" xmlns:ns2="http://svn.pydro.noaa.gov/2017/01/AllGlobalTypes" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://svn.pydro.noaa.gov/2017/01/DR_Memo http://svn.pydro.noaa.gov/2017/01/DRMemo.xsd"><ns1:memoTitle><ns1:date>2018-02-02</ns1:date><ns1:verifier>Atlantic Hydrographic Branch</ns1:verifier><ns1:hydrographer>Scott Donahue</ns1:hydrographer><ns1:jobTitle>Chief Scientist</ns1:jobTitle></ns1:memoTitle><ns1:memoBody><ns1:memoPurpose>This survey was conducted for seafloor mapping purposes.</ns1:memoPurpose><ns1:products productSubmitted="true"><ns1:discussion>No products were created for this survey by the field unit. Additional products have been created by the Atlantic Hydrographic Branch (AHB) and are archived at the National Centers for Environmental Information (NCEI).</ns1:discussion></ns1:products><ns1:dataAcquisitionAndProcessing>This report does not include data acquisition and processing information.</ns1:dataAcquisitionAndProcessing><ns1:verticalControl>Verified zoned tides were applied to the data where possible. All submitted data have been reduced to MLLW and are considered suitable for charting purposes.</ns1:verticalControl><ns1:dtons reportSubmitted="false"><ns1:discussion>There were no DTONs created for this survey.</ns1:discussion></ns1:dtons><ns1:externalSourceData productSubmitted="true"><ns1:discussion>NOAA Ship Nancy Foster</ns1:discussion><ns1:dataLocation>https://www.ngdc.noaa.gov/ships/nancy_foster/NF-11-06-FKNMS_mb.html</ns1:dataLocation></ns1:externalSourceData><ns1:resultsAndRecommendations>This survey will be used to update NOAA navigational products where possible.</ns1:resultsAndRecommendations><ns1:approval><ns1:adequacy>The survey is partially adequate to supersede previous data.</ns1:adequacy><ns1:discussion>This survey will be used to update NOAA navigational products where possible. Retain all charted features unless otherwise specified in the accompanying final feature file.</ns1:discussion></ns1:approval></ns1:memoBody><ns1:metadataTable><ns2:number>OSD-AHB-17</ns2:number><ns2:registryNumber>W00422</ns2:registryNumber><ns2:stateOrTerritory>Florida</ns2:stateOrTerritory><ns2:generalLocality>Dry Tortugas</ns2:generalLocality><ns2:sublocality>Tortugas Bank Vicinity</ns2:sublocality><ns2:scale>180000</ns2:scale><ns2:equipmentTypes><ns2:manufacturer>Kongsberg</ns2:manufacturer><ns2:model>EM710</ns2:model><ns2:type>Multibeam Echo Sounder</ns2:type></ns2:equipmentTypes><ns2:horizontalDatum>North American Datum 1983</ns2:horizontalDatum><ns2:verticalDatum>Mean Lower Low Water</ns2:verticalDatum><ns2:verticalDatumCorrection><ns2:methodsUsed>Discrete Zoning</ns2:methodsUsed></ns2:verticalDatumCorrection><ns2:projection>UTM Zone 17N</ns2:projection><ns2:fieldUnit>NOAA Ship NANCY FOSTER</ns2:fieldUnit><ns2:datesOfSurvey><ns2:start>2011-07-31</ns2:start><ns2:end>2011-08-03</ns2:end></ns2:datesOfSurvey><ns2:chiefOfParty>Scott Donahue</ns2:chiefOfParty><ns2:submission>2018-02-02</ns2:submission></ns1:metadataTable></ns1:descriptiveReportMemo>