Areas of high acoustic backscatter on the SIS-1000 1999 USGS sidescan sonar image of the Upper Continental Slope study area offshore of Louisiana (HIGHBACKSCATTER.SHP)

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: David Twichell
Publication_Date: 2005
Title:

Areas of high acoustic backscatter on the SIS-1000 1999 USGS sidescan sonar image of the Upper Continental Slope study area offshore of Louisiana (HIGHBACKSCATTER.SHP)

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 Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: https://doi.org/10.3133/ofr20051071
Online_Linkage:

https://pubs.usgs.gov/of/2005/1071/data/sidescan/interpretation/sis1000/highbackscatter.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: Reston, VA
Publisher: U.S. Geological Survey

Other_Citation_Details: 1 DVD-ROM
Online_Linkage: https://pubs.usgs.gov/of/2005/1071/

Description:

Abstract:

This GIS is a component of the U.S. Geological Survey, Woods Hole Science Center's Gulf of Mexico GIS database for gas hydrates. This database is intended to organize and display sidescan sonar, seismic-reflection, and sediment sample information collected by the USGS as well as derivative interpretations that are relevant to ongoing hydrate studies in the Gulf of Mexico.

Purpose:

This GIS data layer outlines the distribution of areas of high backscatter on the SIS-1000 sidescan sonar image. High-backscatter areas were those areas on the unenhanced sidescan image that were dominated by values exceeding 55.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19990412
Beginning_Time: 0941
Ending_Date: 19990414
Ending_Time: 1544

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -91.795960
East_Bounding_Coordinate: -91.584547
North_Bounding_Coordinate: 27.821649
South_Bounding_Coordinate: 27.714290

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:db78df56-02bc-4744-83b3-5c3faa216c8a

Theme:

Theme_Keyword_Thesaurus: None
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: polygon
Theme_Keyword: ArcView
Theme_Keyword: Shapefile
Theme_Keyword: U.S. Exclusive Economic Zone
Theme_Keyword: EEZ
Theme_Keyword: SIS-1000 sidescan sonar
Theme_Keyword: sidescan sonar
Theme_Keyword: sidescan sonar mosaic
Theme_Keyword: geology
Theme_Keyword: interpretation
Theme_Keyword: Information Archives Field Activity 99002
Theme_Keyword: high backscatter interpretation

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: geoscientificInformation

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: scientific interpretation
Theme_Keyword: sea-floor characteristics
Theme_Keyword: geospatial datasets

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: Louisiana Continental Slope
Place_Keyword: Gulf of Mexico
Place_Keyword: North America
Place_Keyword: United States

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:

https://pubs.usgs.gov/of/2005/1071/data/sidescan/interpretation/sis1000/highbackscatter-thumb.gif

Browse_Graphic_File_Description:

Thumbnail image showing the extent and content of the data layer.

Browse_Graphic_File_Type: GIF

Browse_Graphic:

Browse_Graphic_File_Name:

https://pubs.usgs.gov/of/2005/1071/data/sidescan/interpretation/sis1000/highbackscatter.gif

Browse_Graphic_File_Description:

Overview image showing the extent and content 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 consistency.
Completeness_Report: Information unavailable from original metadata.
Lineage:

Process_Step:

Process_Description:

The unenhanced version of the SIS-1000 sidescan sonar image was viewed in ArcView, and an interpretation was completed in which areas of the sidescan mosaic with a pixel (dn) values exceeding 55 are present.

Source_Used_Citation_Abbreviation: sis1000un_geog.tif
Process_Date: unknown
Source_Produced_Citation_Abbreviation: highbackscatter.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:

Edits to the metadata were made to fix any errors that MP v 2.9.36 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). The link to the data in the Distribution_Information section had to be fixed. Attempted to modify http to https where appropriate. The link to the larger work citation had to be fixed. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent.

Process_Date: 20170307
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

Process_Step:

Process_Description: USGS Thesaurus keywords added to the keyword section.
Process_Date: 20180720
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

Process_Step:

Process_Description: Crossref DOI link was added as the first link in the metadata.
Process_Date: 20191118
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

Process_Step:

Process_Description:

Added keywords section with USGS persistent identifier as theme keyword.

Process_Date: 20200908
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

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: 68

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000001
Longitude_Resolution: 0.000001
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: 298.257224

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: highbackscatter
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: Feature geometry.
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:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute_Units_of_Measure: integer count
Attribute_Measurement_Resolution: 1

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 <data set name>.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: 0.022

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://pubs.usgs.gov/of/2005/1071/data/sidescan/interpretation/sis1000/highbackscatter.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: 20211116
Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: David Twichell

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: whsc_data_contact@usgs.gov
Contact_Instructions:

The metadata contact email address is a generic address in the event the metadata contact is no longer with the USGS or the email is otherwise invalid.

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

This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/open_file_report/ofr2005-1071/highbackscattermeta.html>