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</Binary>
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<languageCode value="eng"/>
<countryCode Sync="TRUE" value="USA"/>
</mdLang>
<mdChar>
<CharSetCd value="004"/>
</mdChar>
<mdHrLv>
<ScopeCd value="005"/>
</mdHrLv>
<mdContact>
<rpIndName>Oceanographer</rpIndName>
<rpOrgName>U.S. Department of Interior, Bureau of Ocean Energy Management, Marine Minerals Program</rpOrgName>
<rpCntInfo>
<cntPhone>
<voiceNum>(703) 787-1747</voiceNum>
</cntPhone>
<cntAddress addressType="both">
<delPoint>45600 Woodland Road, VAM-LD</delPoint>
<city>Sterling</city>
<adminArea>VA</adminArea>
<postCode>20166</postCode>
<country>US</country>
<eMailAdd>marineminerals@boem.gov</eMailAdd>
</cntAddress>
<cntHours>Monday through Friday 8:00 AM to 5:00 PM (Eastern Time)</cntHours>
<cntInstr>http://www.boem.gov/Marine-Minerals-Program</cntInstr>
</rpCntInfo>
<role>
<RoleCd value="007"/>
</role>
</mdContact>
<mdDateSt Sync="TRUE">20210210</mdDateSt>
<mdStanName>ArcGIS Metadata</mdStanName>
<mdStanVer>1.0</mdStanVer>
<distInfo>
<distTranOps>
<onLineSrc>
<linkage>https://mmis.doi.gov/arcgis/rest/services/MMIS/SurveyMeasurements/MapServer/0</linkage>
</onLineSrc>
</distTranOps>
<distFormat>
<formatName Sync="FALSE">Feature Class</formatName>
</distFormat>
</distInfo>
<dataIdInfo>
<idCitation>
<resTitle Sync="FALSE">StudyAreaTracklines</resTitle>
<date>
<pubDate>2021-02-10</pubDate>
</date>
<citRespParty>
<rpOrgName>U.S. Department of Interior, Bureau of Ocean Energy Management, Marine Minerals Program</rpOrgName>
<rpCntInfo>
<cntAddress>
<delPoint>Sterling, VA</delPoint>
</cntAddress>
</rpCntInfo>
<role>
<RoleCd value="010"/>
</role>
</citRespParty>
<citRespParty>
<rpOrgName>U.S. Department of Interior, Bureau of Ocean Energy Management, Marine Minerals Program</rpOrgName>
<role>
<RoleCd value="006"/>
</role>
</citRespParty>
<presForm>
<PresFormCd value="005"/>
</presForm>
<presForm>
<fgdcGeoform>vector digital data</fgdcGeoform>
</presForm>
</idCitation>
<idAbs>The Study Area Tracklines layer is a compilation of tracklines of vessels conducting geophysical surveys or other data acquisition efforts (e.g. trawling surveys, observational video transect, etc.) from studies relevant to outer continental shelf (OCS) non-energy mineral resource (e.g. sand, gravel, shell) management. Many of these efforts were funded at least partially by the Bureau of Ocean Energy Management (BOEM) (formerly known as the Minerals Management Service). Attributes for each trackline include, but are not limited to, cruise/project ID, line ID, date, time, type(s) of data collected, and links to related content or imagery. The attributes also indicate whether or not the raw data are available for request from the BOEM's Marine Minerals Program. Additional information related to each trackline is provided in the related tables within the MMIS geodatabase: Link Documents table - links tracklines to associated study report(s), Equipment table - list of specific equipment types used for data acquisition along each trackline. The tracklines layer and its related tables will be updated periodically as new and existing data are incorporated in to the MMIS geodatabase.</idAbs>
<idPurp>This dataset supports the Bureau of Ocean Energy Management's (BOEM) Marine Minerals Program (MMP) mission of managing non-energy minerals (primarily sand and gravel) on the OCS. The data and information gleaned from these surveys helps facilitate these management efforts via the identification of potential OCS sand resources that are a critical component of ensuring the long-term success and cost-effectiveness of many shore protection, beach nourishment, and coastal habitat restoration projects along the Gulf of Mexico and Atlantic Ocean coasts.</idPurp>
<idStatus>
<ProgCd value="007"/>
</idStatus>
<resMaint>
<maintFreq>
<MaintFreqCd value="009"/>
</maintFreq>
</resMaint>
<placeKeys>
<keyword>GULF OF MEXICO</keyword>
<keyword>NORTH ATLANTIC OCEAN</keyword>
<keyword>ATLANTIC OCEAN</keyword>
<keyword>GLOBAL OCEAN</keyword>
<keyword>SEA FLOOR</keyword>
<thesaName>
<resTitle>NASA/GCMD Location Keywords</resTitle>
</thesaName>
</placeKeys>
<themeKeys>
<keyword>Bathymetric Survey</keyword>
<keyword>Geophysical Survey</keyword>
<keyword>Geophysical Trackline</keyword>
<keyword>Survey Trackline</keyword>
<keyword>Trawl</keyword>
<keyword>Offshore</keyword>
<keyword>Side Scan Sonar</keyword>
<keyword>OCS</keyword>
<keyword>Cruise</keyword>
<keyword>Seismic Survey</keyword>
</themeKeys>
<searchKeys>
<keyword>GULF OF MEXICO</keyword>
<keyword>Bathymetric Survey</keyword>
<keyword>NORTH ATLANTIC OCEAN</keyword>
<keyword>Geophysical Survey</keyword>
<keyword>Geophysical Trackline</keyword>
<keyword>Survey Trackline</keyword>
<keyword>ATLANTIC OCEAN</keyword>
<keyword>Trawl</keyword>
<keyword>Offshore</keyword>
<keyword>Side Scan Sonar</keyword>
<keyword>GLOBAL OCEAN</keyword>
<keyword>OCS</keyword>
<keyword>SEA FLOOR</keyword>
<keyword>Cruise</keyword>
<keyword>Seismic Survey</keyword>
</searchKeys>
<resConst>
<LegConsts>
<othConsts>This data is in the public domain and has no access restrictions.</othConsts>
</LegConsts>
</resConst>
<resConst>
<SecConsts>
<classSys>FIPS 199 Security Classification</classSys>
<handDesc>There are no restrictions; the data is releasable to the public.</handDesc>
</SecConsts>
</resConst>
<resConst>
<Consts>
<useLimit>The Bureau of Ocean Energy Management (BOEM) provides the data for use "as is". BOEM provides this information with the understanding that it is not guaranteed to be accurate, correct or complete and conclusions drawn from such information are the responsibility of the user. While every effort has been made to ensure the accuracy, correctness and timeliness of materials presented within the limits of the current state of the art, BOEM assumes no responsibility for errors or omissions, nor as a result of the failure of the data to function on a particular system. BOEM makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. Users are cautioned to consider carefully the provisional nature of these data and information before using them for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Conclusions drawn from or actions undertaken on the basis of, such data and information are the sole responsibility of the user. The maps shown here are for illustration and planning purposes only and are not suitable for site-specific decision making. The data are not suitable for navigational purposes. Information found here should not be used for making financial or any other commitments. This data was developed by the U.S. Government; no other proprietary rights may be attached to them nor may they be sold to the U.S. Government as part of any procurement of products or services. Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the Bureau of Ocean Energy Management (BOEM) as the source of this information.</useLimit>
</Consts>
</resConst>
<spatRpType>
<SpatRepTypCd value="001"/>
</spatRpType>
<dataLang>
<languageCode value="eng"/>
<countryCode Sync="TRUE" value="USA"/>
</dataLang>
<envirDesc Sync="TRUE"> Version 6.2 (Build 9200) ; Esri ArcGIS 10.6.1.9270</envirDesc>
<dataExt>
<geoEle>
<GeoBndBox>
<westBL>-92.276867</westBL>
<eastBL>-69.876444</eastBL>
<southBL>26.0812</southBL>
<northBL>43.51108</northBL>
</GeoBndBox>
</geoEle>
</dataExt>
<dataExt>
<exDesc>publication date</exDesc>
<tempEle>
<TempExtent>
<exTemp>
<TM_Instant>
<tmPosition>2021-02-10</tmPosition>
</TM_Instant>
</exTemp>
</TempExtent>
</tempEle>
<geoEle/>
</dataExt>
<suppInfo>The most current version of this dataset can be downloaded via the Marine Minerals Information System (MMIS) viewer at https://mmis.doi.gov/boemmmis/. PDF versions of associated reports can be provided upon request. For additional information pertaining to BOEM's marine minerals program and OCS resource management please visit https://www.boem.gov/Marine-Minerals-Program/.</suppInfo>
<dataExt>
<geoEle>
<GeoBndBox esriExtentType="search">
<exTypeCode Sync="TRUE">1</exTypeCode>
<westBL Sync="TRUE">-400.000000</westBL>
<eastBL Sync="TRUE">-69.876444</eastBL>
<northBL Sync="TRUE">43.511080</northBL>
<southBL Sync="TRUE">-400.000000</southBL>
</GeoBndBox>
</geoEle>
</dataExt>
</dataIdInfo>
<mdMaint>
<maintFreq>
<MaintFreqCd value="012"/>
</maintFreq>
<dateNext>20220210</dateNext>
</mdMaint>
<dqInfo>
<dqScope>
<scpLvl>
<ScopeCd value="005"/>
</scpLvl>
</dqScope>
<report type="DQConcConsis">
<measDesc>The MMIS data model utilizes a hierarchical structure where an ESRI enterprise geodatabase represents the top tier, and feature datasets and raster catalogs are the secondary tiers which contain groupings of similar data layers. These individual data layers were identified by MMP as important, and they make up the bottom tier. Most individual vector layers and tables are collections of data from multiple sources and across multiple dates. Extensive research went into the construction of (1) the hierarchical groupings of data (primarily by subject matter and file format) and (2) technical aspects of the data model. Data within the geodatabase was consolidated to reduce redundancy, resulting in several stand-alone tables. Relationship classes utilizing global IDs were built between vector layers and stand-alone tables in order to link disparate data. The entire MMIS data model was originally constructed using ESRI ArcGIS Diagrammer, a tool that creates and edits a geodatabase schema. The resulting geodatabase structure, data, and relationship classes were reviewed thoroughly by multiple individuals using ESRI Geodatabase Diagrammer Add-In, ESRI ArcGIS, and Microsoft Visio. ESRI Geodatabase Diagrammer Add-In creates a detailed break-down of the geodatabase and a Visio data model poster.</measDesc>
</report>
<report type="DQCompOm">
<measDesc>The spatial data and attribute tables loaded into the MMIS data model are believed to be complete, in regards to maintaining each data layer/table after retrieving it from its source. Please refer to the scientific reports, as well as BOEM MMP Leases, negotiated agreements, Memoranda of Agreements, and project completion reports, for discussions of the results on the corresponding source data. Most individual vector layers and tables in the MMIS data model are collections of data from multiple sources and across multiple dates. Most likely, these MMIS layers/tables will continue to have more data loaded in the future, therefore expanding upon the list of sources and dates. Additionally, the Pacific Outer Continental Shelf (OCS) and Alaska OCS regions may eventually be added to the data model, aside from the Atlantic and Gulf of Mexico OCS regions.</measDesc>
</report>
<report type="DQQuanAttAcc">
<measDesc>Please refer to the scientific reports, as well as Bureau of Ocean Energy Management (BOEM) Marine Minerals Program (MMP) Leases, negotiated agreements, cooperative agreements, Memoranda of Agreements, and project completion reports, for accuracy statements on the corresponding source data. These documents are referenced in the attribute tables, where appropriate. In regards to attribute assignment in the Marine Minerals Information Systems (MMIS) data model, every effort was made to load source data into MMIS without error or modification. Some attributes contain domain restrictions in an effort to standardize the field entries and to decrease potential inconsistent entries (e.g., spelling, grammar, typographical errors, and subject matter) in the attribute.</measDesc>
</report>
<report dimension="horizontal" type="DQAbsExtPosAcc">
<measDesc>unknown</measDesc>
</report>
<report dimension="vertical" type="DQAbsExtPosAcc">
<measDesc>unknown</measDesc>
</report>
<dataLineage>
<prcStep>
<stepDesc>The spatial and tabular data presented in this dataset was identified by the Bureau of Ocean Energy Management (BOEM) Marine Minerals Program (MMP) for the MMIS project as being critical for MMP's decision making and management responsibilities of federal Outer Continental Shelf (OCS) mineral exploration and federal non-energy sand/gravel lease activities. The data was retrieved directly from BOEM, or another government entity, in the form of one or more ArcGIS shapefiles, Microsoft Excel spreadsheets, XYZ files, field logs, project reports, PDF tables, and maps. This data was linked to source documents including resource characterization studies, environmental study reports, and data deliverables associated with Negotiated Non-Competitive Leases or Memorandum of Agreements between BOEM and partnering agencies or contractors. First, the source data was reformatted, if needed, into an ESRI ArcGIS compatible format and then loaded into a project-specific geodatabase in its native projection. Second, the data was reprojected into the NAD83 geodetic reference system and then loaded into corresponding layers and tables in the MMIS enterprise geodatabase. Relationship classes were made between disparate layers and tables to join related data. Lastly, for use in the web application, a duplicate "publishable" MMIS enterprise geodatabase was created in a Web Mercator (Auxiliary Sphere) projection. For specific process information regarding acquisition, please reference the individual study reports.</stepDesc>
<stepDateTm>2021-02-10</stepDateTm>
</prcStep>
<dataSource>
<srcDesc>Lineage varies by data source. Some data was contributed, some was mapped/reformatted from scientific and technical reports for MMIS.</srcDesc>
<srcCitatn>
<resTitle>BOEM Archives</resTitle>
<resAltTitle>BOEM Archives</resAltTitle>
<date>
<pubDate>2021-02-10</pubDate>
</date>
<citRespParty>
<rpOrgName>Multiple investigators and projects</rpOrgName>
<role>
<RoleCd value="006"/>
</role>
</citRespParty>
<citRespParty>
<rpOrgName>U.S. Department of Interior, Bureau of Ocean Energy Management, Marine Minerals Program</rpOrgName>
<role>
<RoleCd value="006"/>
</role>
</citRespParty>
<presForm>
<PresFormCd value="002"/>
</presForm>
<presForm>
<fgdcGeoform>document</fgdcGeoform>
</presForm>
</srcCitatn>
<srcExt>
<exDesc>publication date</exDesc>
<tempEle>
<TempExtent>
<exTemp>
<TM_Period>
<tmBegin>1963-06-19</tmBegin>
<tmEnd>2021-02-10</tmEnd>
</TM_Period>
</exTemp>
</TempExtent>
</tempEle>
</srcExt>
</dataSource>
</dataLineage>
</dqInfo>
<spatRepInfo>
<VectSpatRep>
<geometObjs Name="StudyAreaTracklines">
<geoObjTyp>
<GeoObjTypCd Sync="TRUE" value="002"/>
</geoObjTyp>
<geoObjCnt Sync="TRUE">19947</geoObjCnt>
</geometObjs>
<topLvl>
<TopoLevCd Sync="TRUE" value="001"/>
</topLvl>
</VectSpatRep>
</spatRepInfo>
<eainfo>
<detailed Name="StudyAreaTracklines">
<enttyp>
<enttypl Sync="FALSE">StudyAreaTracklines</enttypl>
<enttypd>Trackline of a seismic/sidescan/bathymetry survey. Houses imagery associated with the survey</enttypd>
<enttypds>BOEM</enttypds>
<enttypt Sync="TRUE">Feature Class</enttypt>
<enttypc Sync="TRUE">19947</enttypc>
</enttyp>
<attr>
<attrlabl>Date</attrlabl>
<attrdef>Date of survey (use first or last day of survey if data acquisition occurred over multiple days)</attrdef>
<attrdefs>BOEM</attrdefs>
<attrdomv>
<udom>Date of survey (use first or last day of survey if data acquisition occurred over multiple days)</udom>
</attrdomv>
<attalias Sync="TRUE">Date</attalias>
<attrtype Sync="TRUE">Date</attrtype>
<attwidth Sync="TRUE">8</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
<attr>
<attrlabl>Seismic</attrlabl>
<attrdef>Hyperlink to the imagery of the seismic survey collected on the associated line, held in the imagery folder of the study area directory</attrdef>
<attrdefs>BOEM</attrdefs>
<attrdomv>
<udom>Hyperlink to the imagery of the seismic survey collected on the associated line, held in the imagery folder of the study area directory</udom>
</attrdomv>
<attalias Sync="TRUE">Seismic profile pdf/jpg</attalias>
<attrtype Sync="TRUE">String</attrtype>
<attwidth Sync="TRUE">250</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
<attr>
<attrlabl>SHAPE.STLength()</attrlabl>
<attrdef>Length of feature in internal units</attrdef>
<attrdefs>Esri</attrdefs>
<attrdomv>
<udom>Length of feature in internal units</udom>
</attrdomv>
<attalias Sync="TRUE">SHAPE.STLength()</attalias>
<attrtype Sync="TRUE">Double</attrtype>
<attwidth Sync="TRUE">0</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
<attr>
<attrlabl>Override</attrlabl>
<attrdef>Overrides Cartographic Representation</attrdef>
<attrdefs>Esri</attrdefs>
<attrdomv>
<udom>Overrides Cartographic Representation</udom>
</attrdomv>
<attalias Sync="TRUE">Override</attalias>
<attrtype Sync="TRUE">Blob</attrtype>
<attwidth Sync="TRUE">0</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
<attr>
<attrlabl>Time</attrlabl>
<attrdef>Start time of trackline</attrdef>
<attrdefs>BOEM</attrdefs>
<attrdomv>
<udom>Start time of trackline</udom>
</attrdomv>
<attalias Sync="TRUE">Time</attalias>
<attrtype Sync="TRUE">String</attrtype>
<attwidth Sync="TRUE">10</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
<attr>
<attrlabl>StudyLines_GlobalEquipID</attrlabl>
<attrdef>Unique identifier to links the feature to the equipment and device information</attrdef>
<attrdefs>BOEM</attrdefs>
<attrdomv>
<udom>Unique identifier to links the feature to the equipment and device information</udom>
</attrdomv>
<attalias Sync="TRUE">Global Equipment ID</attalias>
<attrtype Sync="TRUE">GUID</attrtype>
<attwidth Sync="TRUE">38</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
<attr>
<attrlabl>LineID</attrlabl>
<attrdef>Unique line identifier</attrdef>
<attrdefs>BOEM</attrdefs>
<attrdomv>
<udom>Unique line identifier</udom>
</attrdomv>
<attalias Sync="TRUE">Line ID</attalias>
<attrtype Sync="TRUE">String</attrtype>
<attwidth Sync="TRUE">50</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
<attr>
<attrlabl>RawData</attrlabl>
<attrdef>Is additional data, not maintained in the MMIS system, available in the BOEM MMP archive? Values "Y","N" or null</attrdef>
<attrdefs>BOEM</attrdefs>
<attrdomv>
<edom>
<edomv>Y</edomv>
<edomvd>Yes</edomvd>
<edomvds>BOEM</edomvds>
</edom>
<edom>
<edomv>N</edomv>
<edomvd>No</edomvd>
<edomvds>BOEM</edomvds>
</edom>
</attrdomv>
<attalias Sync="TRUE">Raw Data Available</attalias>
<attrtype Sync="TRUE">String</attrtype>
<attwidth Sync="TRUE">5</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
<attr>
<attrlabl>OBJECTID</attrlabl>
<attrdef>Internal feature number</attrdef>
<attrdefs>Esri</attrdefs>
<attrdomv>
<udom>Internal feature number</udom>
</attrdomv>
<attalias Sync="TRUE">OBJECTID</attalias>
<attrtype Sync="TRUE">OID</attrtype>
<attwidth Sync="TRUE">4</attwidth>
<atprecis Sync="TRUE">10</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
<attr>
<attrlabl>SHAPE</attrlabl>
<attrdef>Feature geometry</attrdef>
<attrdefs>Esri</attrdefs>
<attrdomv>
<udom>Feature geometry</udom>
</attrdomv>
<attalias Sync="TRUE">SHAPE</attalias>
<attrtype Sync="TRUE">Geometry</attrtype>
<attwidth Sync="TRUE">4</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
<attr>
<attrlabl>WebLink</attrlabl>
<attrdef>Web Link</attrdef>
<attrdefs>BOEM</attrdefs>
<attrdomv>
<udom>Web Link</udom>
</attrdomv>
<attalias Sync="TRUE">Web Link</attalias>
<attrtype Sync="TRUE">String</attrtype>
<attwidth Sync="TRUE">250</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
<attr>
<attrlabl>RuleID</attrlabl>
<attrdef>Assigns Cartographic Representation</attrdef>
<attrdefs>Esri</attrdefs>
<attrdomv>
<edom>
<edomv>-1</edomv>
<edomvd>Free Representation</edomvd>
<edomvds>BOEM</edomvds>
</edom>
<edom>
<edomv>1</edomv>
<edomvd>StudyAreaTracklines</edomvd>
<edomvds>BOEM</edomvds>
</edom>
</attrdomv>
<attalias Sync="TRUE">RuleID</attalias>
<attrtype Sync="TRUE">Integer</attrtype>
<attwidth Sync="TRUE">4</attwidth>
<atprecis Sync="TRUE">10</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
<attr>
<attrlabl>Video</attrlabl>
<attrdef>Link to video</attrdef>
<attrdefs>BOEM</attrdefs>
<attrdomv>
<udom>Link to video</udom>
</attrdomv>
<attalias Sync="TRUE">Video link</attalias>
<attrtype Sync="TRUE">String</attrtype>
<attwidth Sync="TRUE">250</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
<attr>
<attrlabl>StudyID</attrlabl>
<attrdef>Study ID of the study in which the feature was identified. Study ID following the convention noted in the Data Management Plan</attrdef>
<attrdefs>BOEM</attrdefs>
<attrdomv>
<udom>Study ID of the study in which the feature was identified. Study ID following the convention noted in the Data Management Plan</udom>
</attrdomv>
<attalias Sync="TRUE">Study ID</attalias>
<attrtype Sync="TRUE">String</attrtype>
<attwidth Sync="TRUE">250</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
<attr>
<attrlabl>State</attrlabl>
<attrdef>Location relative to closest state; state funded for OCS study, two letter postal code</attrdef>
<attrdefs>BOEM</attrdefs>
<attrdomv>
<udom>Location relative to closest state; state funded for OCS study, two letter postal code</udom>
</attrdomv>
<attalias Sync="TRUE">State</attalias>
<attrtype Sync="TRUE">String</attrtype>
<attwidth Sync="TRUE">2</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
<attr>
<attrlabl>Tracklines_GlobalLinkID</attrlabl>
<attrdef>Unique identifier that links the feature to the study report</attrdef>
<attrdefs>BOEM</attrdefs>
<attrdomv>
<udom>Unique identifier that links the feature to the study report</udom>
</attrdomv>
<attalias Sync="TRUE">Global Link ID</attalias>
<attrtype Sync="TRUE">GUID</attrtype>
<attwidth Sync="TRUE">38</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
<attr>
<attrlabl>Length</attrlabl>
<attrdef>Length of trackline in nautical miles</attrdef>
<attrdefs>BOEM</attrdefs>
<attrdomv>
<udom>Length of trackline in nautical miles</udom>
</attrdomv>
<attalias Sync="TRUE">Length (nm)</attalias>
<attrtype Sync="TRUE">Double</attrtype>
<attwidth Sync="TRUE">8</attwidth>
<atprecis Sync="TRUE">38</atprecis>
<attscale Sync="TRUE">8</attscale>
</attr>
<attr>
<attrlabl>DataTypes</attrlabl>
<attrdef>Data types collected during survey</attrdef>
<attrdefs>BOEM</attrdefs>
<attrdomv>
<udom>Data types collected during survey</udom>
</attrdomv>
<attalias Sync="TRUE">Data collected during Survey</attalias>
<attrtype Sync="TRUE">String</attrtype>
<attwidth Sync="TRUE">100</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
<attr>
<attrlabl>CruiseID</attrlabl>
<attrdef>Identifier for the cruise being run</attrdef>
<attrdefs>BOEM</attrdefs>
<attrdomv>
<udom>Identifier for the cruise being run</udom>
</attrdomv>
<attalias Sync="TRUE">Cruise ID</attalias>
<attrtype Sync="TRUE">String</attrtype>
<attwidth Sync="TRUE">50</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
<attr>
<attrlabl>GlobalID</attrlabl>
<attrdef>Globally Unique Identifier</attrdef>
<attrdefs>Esri</attrdefs>
<attrdomv>
<udom>Globally Unique Identifier</udom>
</attrdomv>
<attalias Sync="TRUE">GlobalID</attalias>
<attrtype Sync="TRUE">GlobalID</attrtype>
<attwidth Sync="TRUE">38</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
<attr>
<attrlabl>SidescanSonar</attrlabl>
<attrdef>Link to side scan sonar imagery</attrdef>
<attrdefs>BOEM</attrdefs>
<attrdomv>
<udom>Link to side scan sonar imagery</udom>
</attrdomv>
<attalias Sync="TRUE">Sidescan Sonar pdf/jpg</attalias>
<attrtype Sync="TRUE">String</attrtype>
<attwidth Sync="TRUE">250</attwidth>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
</attr>
</detailed>
<overview>
<eaover>The Study Area Tracklines layer is a compilation of tracklines of vessels conducting geophysical surveys or other data acquisition efforts (e.g. trawling surveys, observational video transect, etc.) from studies relevant to outer continental shelf (OCS) non-energy mineral resource (e.g. sand, gravel, shell) management. Many of these efforts were funded at least partially by the Bureau of Ocean Energy Management (BOEM) (formerly known as the Minerals Management Service). Attributes for each trackline include, but are not limited to, cruise/project ID, line ID, date, time, type(s) of data collected, and links to related content or imagery. The attributes also indicate whether or not the raw data are available for request from the BOEM's Marine Minerals Program. Additional information related to each trackline is provided in the related tables within the MMIS geodatabase: Link Documents table - links tracklines to associated study report(s), Equipment table - list of specific equipment types used for data acquisition along each trackline. The tracklines layer and its related tables will be updated periodically as new and existing data are incorporated in to the MMIS geodatabase.</eaover>
<eadetcit>BOEM</eadetcit>
</overview>
</eainfo>
<mdHrLvName Sync="TRUE">dataset</mdHrLvName>
<refSysInfo>
<RefSystem>
<refSysID>
<identCode Sync="TRUE" code="4269"/>
<idCodeSpace Sync="TRUE">EPSG</idCodeSpace>
<idVersion Sync="TRUE">6.12(3.0.1)</idVersion>
</refSysID>
</RefSystem>
</refSysInfo>
<spdoinfo>
<ptvctinf>
<esriterm Name="StudyAreaTracklines">
<efeatyp Sync="TRUE">Simple</efeatyp>
<efeageom Sync="TRUE" code="3"/>
<esritopo Sync="TRUE">FALSE</esritopo>
<efeacnt Sync="TRUE">19947</efeacnt>
<spindex Sync="TRUE">TRUE</spindex>
<linrefer Sync="TRUE">FALSE</linrefer>
</esriterm>
</ptvctinf>
</spdoinfo>
</metadata>
