Identification_Information: Citation: Citation_Information: Originator: David Twichell Publication_Date: 2005 Title: GLORIA_BRIGHT_NAD83.SHP - Areas of high-backscatter on the GLORIA sidescan sonar image Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 2005-1071 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2005/1071/data/sidescan/interpretation/gloria/gloria_bright_nad83.zip Larger_Work_Citation: Citation_Information: Originator: Twichell D.C. Originator: Cross V.A. Originator: Paskevich, V.F. Originator: Hutchinson, D.R. Originator: Winters, W.J. Originator: Hart, P.E. Publication_Date: 2005 Title: GIS of selected geophysical and core data in the northern Gulf of Mexico continental slope collected by the U.S. Geological Survey Edition: 1.0 Series_Information: Series_Name: Open-File report Issue_Identification: 2005-1071 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Other_Citation_Details: 1 DVD-ROM Online_Linkage: http://pubs.usgs.gov/of/2005/1071 Description: Abstract: This GIS overlay is a component of the U.S. Geological Survey, Woods Hole Science Center's, Gulf of Mexico GIS database. The Gulf of Mexico GIS database is intended to organize and display USGS held data and provide on-line (WWW) access to the data and/or metadata. Purpose: This GIS data layer shows the areas of high acoustic backscatter on the GLORIA sidescan sonar image form the Gulf of Mexico. The interpretation was completed by David Twichell using the GLORIA image in concert with the multibeam bathymetry to identify areas of high backscatter that are not associated with steep slopes. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19820202 Ending_Date: 19851022 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -93.592427 East_Bounding_Coordinate: -88.067145 North_Bounding_Coordinate: 28.644747 South_Bounding_Coordinate: 26.408149 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: Woods Hole Science Center Theme_Keyword: WHSC Theme_Keyword: Gulf of Mexico GIS database Theme_Keyword: polyline Theme_Keyword: ArcView Theme_Keyword: shapefile Theme_Keyword: U.S. Exclusive Economic Zone Theme_Keyword: EEZ Theme_Keyword: GLORIA Theme_Keyword: Geologic LOng-Range Inclined Asdic Theme_Keyword: vectors Theme_Keyword: sidescan sonar interpretation Theme_Keyword: sidescan sonar mosaic Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans and estuaries Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: General Place_Keyword: Gulf of Mexico Access_Constraints: None Use_Constraints: Public domain data from the U.S. government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: David Twichell Contact_Organization: U.S. Geological Survey Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2266 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: dtwichell@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2005/1071/data/sidescan/interpretation/gloria/gloria_bright_nad83.gif Browse_Graphic_File_Description: Overview image showing the extent and coverage of the data layer. Browse_Graphic_File_Type: GIF Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2005/1071/data/sidescan/interpretation/gloria/gloria_bright_nad83-thumb.gif Browse_Graphic_File_Description: Thumbnail image showing the extent and coverage of the data layer. Browse_Graphic_File_Type: GIF Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535 Data_Quality_Information: Logical_Consistency_Report: The data layer has been checked for topological consisitency (Clean and Build completed). Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Paskevich, V. Publication_Date: 2000 Title: Gulf of Mexico GLORIA sidescan sonar geologic interpretation: ArcView data coverages Edition: 1.0 Geospatial_Data_Presentation_Form: remote-sensing image Series_Information: Series_Name: Open-File Report Issue_Identification: 00-019 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological SUrvey, COastal and Marine Geology Program Other_Citation_Details: 1 CD-ROM Online_Linkage: http://pubs.usgs.gov/of/of00-019/ Process_Step: Process_Description: This interpretive layer shows the areas of high backscatter on the GLORIA image that are not associated with steep topography or mass-wasting deposits. The shapefile was created in ArcView using 250 m GLORIA sidescan image (gloria.tif) to identify areas of high backscatter. Only those areas that were not associated with steep slopes (derived from comparing This GIS data layer with a slope steepness map derived from the multibeam bathymetry) nor mass-wasting deposits (derived from comparing This GIS data layer with the masswasting shapefile) were included in This GIS data layer. Source_Used_Citation_Abbreviation: gloria.tif Process_Date: Unknown Source_Produced_Citation_Abbreviation: gloria_bright.shp Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: David Twichell Contact_Organization: U.S. Geological Survey Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2266 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: dtwichell@usgs.gov Process_Step: Process_Description: Metadata imported. Source_Used_Citation_Abbreviation: C:\GOMGIS\data\sidescan\interpretation\gloria\gloria_coverage.shp.xml Process_Step: Process_Description: Dataset projected froom NAD27 to NAD83 using Arctoolbox 9.0. Source_Used_Citation_Abbreviation: gloria_bright.shp Source_Produced_Citation_Abbreviation: gloria_bright_nad83.shp Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: G-polygon Point_and_Vector_Object_Count: 131 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.005 Longitude_Resolution: 0.005 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257222 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: gloria_bright_nad83 Entity_Type_Definition: Shapefile Attribute Table Entity_Type_Definition_Source: ESRI Attribute: Attribute_Label: FID Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Shape Attribute_Definition: polygon Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: ID Attribute_Definition: Internal Feature Number Attribute_Definition_Source: ESRI Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: David Twichell Contact_Organization: U.S. Geological Survey Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2266 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: dtwichell@usgs.gov Resource_Description: Downloadable Data Distribution_Liability: Although this data set has been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: SHP Format_Version_Number: 3.3 Format_Specification: ESRI polygon shapefile Format_Information_Content: The SHP file contains the geospatial data. The SHX file contains the index of the geospatial data. The DBF file contains the attribute data in dBASE format. The PRJ file contains the coordinate system information (optional). The AVL file contains the legend information (optional). The SBN and SBX files contain the spatial index of the geospatial data (optional). The XML file contains the metadata describing the data set .shp.xml. An ASCII version of the metadata file. A browse graphic showing the data layer coverage and extent (optional). File_Decompression_Technique: zip archive Transfer_Size: 0.029 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2005/1071/data/sidescan/interpretation/gloria/gloria_bright.zip Access_Instructions: Data may be retrieved via any WWW browser. Offline_Option: Offline_Media: DVD-ROM Recording_Capacity: Recording_Density: 4.75 Recording_Density_Units: Gbytes Recording_Format: UDF Fees: None Technical_Prerequisites: The data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS® or ArcView® 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing data. A free data viewer, arcexplorer, capable of displaying the data is available from ESRI at www.esri.com. Metadata_Reference_Information: Metadata_Date: 20051213 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: David Twichell Contact_Organization: U.S. Geological Survey Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2266 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: dtwichell@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Access_Constraints: None Metadata_Use_Constraints: None Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile