Tracklines of side-scan sonar data collected by the U.S. Geological Survey offshore of the Chandeleur Islands, LA, 2007 (sidescan_trk_07007.shp, polylines)

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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: U.S. Geological Survey
Publication_Date: 2009
Title:

Tracklines of side-scan sonar data collected by the U.S. Geological Survey offshore of the Chandeleur Islands, LA, 2007 (sidescan_trk_07007.shp, polylines)

Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2008-1195

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/ofr20081195
Online_Linkage:

http://pubs.usgs.gov/of/2008/1195/GIS_catalog/Tracklines/sidescan_trk_07007.zip

Larger_Work_Citation:

Citation_Information:

Originator: Wayne E. Baldwin
Originator: Elizabeth A. Pendleton
Originator: David C. Twichell
Publication_Date: 2009
Title:

Geophysical Data from offshore of the Chandeleur Islands, Eastern Mississippi Delta

Edition: 1.0
Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2008-1195

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: http://pubs.usgs.gov/of/2008/1195/

Description:

Abstract:

In 2006 and 2007, the U.S. Geological Survey, in partnership with Louisiana Department of Natural Resources and the University of New Orleans, conducted geologic mapping to characterize the sea floor and shallow subsurface stratigraphy offshore of the Chandeleur Islands in Eastern Louisiana. The mapping was carried out during two cruises on the R/V Acadiana. Data were acquired with the following equipment: an SEA Ltd SwathPlus interferometric sonar (234 kHz), Klein 3000 dual frequency side-scan sonar, and an Edgetech 512i chirp subbottom profiling system. The long-term goal of this mapping effort is to produce high-quality geologic maps and geophysical interpretations that can be utilized to investigate the impact of Hurricane Katrina in 2005 and to identify sand resources within the region.

Purpose:

This data set contains tracklines for approximately 2000 km of side-scan sonar data collected by the U.S. Geological Survey during a 2007 geophysical cruise offshore of the Chandeleur Islands, LA.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20070610
Ending_Date: 20070622

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -89.292748
East_Bounding_Coordinate: -88.829453
North_Bounding_Coordinate: 29.725082
South_Bounding_Coordinate: 29.377308

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:2e0f2e01-fc15-4fcd-bfb9-11289b5a5725

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Woods Hole Science Center
Theme_Keyword: WHSC
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: tracks
Theme_Keyword: tracklines
Theme_Keyword: sidescan sonar
Theme_Keyword: side scan
Theme_Keyword: ESRI polyline shapefile
Theme_Keyword: WHSC field activity serial number 07007

Theme:

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

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: navigational data
Theme_Keyword: marine geophysics
Theme_Keyword: geospatial datasets

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: Louisiana
Place_Keyword: Chandeleur Islands
Place_Keyword: North Central Gulf Coast
Place_Keyword: United States
Place_Keyword: Gulf of Mexico
Place_Keyword: Breton Island
Place_Keyword: Gosier Island
Place_Keyword: Curlew Island
Place_Keyword: MRGO
Place_Keyword: New Harbor Islands
Place_Keyword: North Islands
Place_Keyword: Mississippi River Gulf Outlet

Access_Constraints: None
Use_Constraints:

The Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

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

Contact_Position: Oceanographer
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: (508) 548-8700x2266
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: dtwichell@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2008/1195/images/sonar_trk.jpg
Browse_Graphic_File_Description:

Side-scan sonar tracklines offshore of the Chandeleur Isands, LA

Browse_Graphic_File_Type: JPEG

Native_Data_Set_Environment:

Microsoft Windows XP Professional x64 Edition Version 2003 Service Pack 2; ESRI ArcCatalog 9.2.4.1420

Cross_Reference:

Citation_Information:

Originator: W.W. Danforth
Originator: T.F. O'Brien
Originator: W.C. Schwab
Publication_Date: 1991
Title:

USGS image processing system: near real-time mosaicking of high-resolution sidescan-sonar data

Series_Information:

Series_Name: Sea Technology
Issue_Identification: Jan. 1991

Cross_Reference:

Citation_Information:

Originator: William W. Danforth
Publication_Date: 1997
Title:

XSonar/ShowImage: A complete system for rapid sidescan-sonar processing and display.

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 97-686

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: https://pubs.er.usgs.gov/publication/ofr97686

Cross_Reference:

Citation_Information:

Originator: V.F. Paskevich
Publication_Date: 1992
Title:

Digital mapping of sidescan sonar data with the Woods Hole Image Processing System software

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 92-536

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: https://pubs.er.usgs.gov/publication/ofr92536

Cross_Reference:

Citation_Information:

Originator: Valerie Paskevich
Publication_Date: 1996
Title:

MAPIT: An improved method for mapping digital sidescan sonar data using the Woods Hole Image Processing System (WHIPS) Software

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 96-281

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: https://pubs.er.usgs.gov/publication/ofr96281

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report: All attributes were checked in a consistent manner.

Logical_Consistency_Report: Any spurious data points were removed during processing.
Completeness_Report:

Navigation from all the sidescan sonar tracklines was used to generate this shapefile.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

These data were navigated with a Differential Global Positioning System (DGPS) mounted above the interferometric sonar head. Unless noted, all DGPS data are referenced to WGS84. The layback distance between towed sidescan sonar fish and the mounted GPS antennae were measured on the ship and corrected for these navigation data.

Quantitative_Horizontal_Positional_Accuracy_Assessment:

Horizontal_Positional_Accuracy_Value: 10
Horizontal_Positional_Accuracy_Explanation:

The differential GPS is accurate within 1 to 2 meters. The layback of the towfish adds additional uncertainty due to changes in angle and scope of the tow cable in response to sea state and vessel speed. Original metadata specified the horizontal positional accuracy value as < 10 meters.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey
Publication_Date: Unpublished material
Title: Sidescan-sonar data collection

Type_of_Source_Media: disc
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20070610
Ending_Date: 20070622

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: raw sidescan data
Source_Contribution:

Trackline acquisition at sea (2007): These sidescan sonar data were collected with a Klein 3000 dual frequency sidescan sonar towfish on the R/V Acadiana of Loreauville, LA. These data were acquired using SonarPro Software (version: none). Tracklines are spaced 100 to 125 m apart in the shore parallel direction.

Process_Step:

Process_Description:

Navigation was extracted from the raw sidescan sonar data (*XTF format) in XSonar (version: none) using the 'demultiplex' function (Danforth and others, 1991). Navigation was exported as comma-separated text from XSonar for input into ArcGIS (version 9.2).

Process_Date: 2006
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Wayne E. Baldwin
Contact_Organization: U.S. Geological Survey

Contact_Position: Geologist
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: (508) 548-8700x2226
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: wbaldwin@usgs.gov

Process_Step:

Process_Description:

In ArcCatalog (version 9.2; Build 1420), navigation text was converted to a point feature class by right-clicking on the comma separated text file -- Create Feature Class -- from XY table.

Process_Date: Unknown
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Wayne E. Baldwin
Contact_Organization: U.S. Geological Survey

Contact_Position: Geologist
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: (508) 548-8700x2226
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: wbaldwin@usgs.gov

Process_Step:

Process_Description:

VAC Extras tool (version: 1.97 FeatConv - Points to Line v2; USGS in house software) was then used within ArcMap (version 9.2; Build 1420) to convert the navigation points to a trackline shapefile. The trackline shapefiles were edited to remove spurious fixes, and a length field was created and populated using 'Calculate Geometry', which can be accessed by right-clicking on the attribute field name in the table view.

Process_Date: Unknown
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Elizabeth A. Pendleton
Contact_Organization: U.S. Geological Survey

Contact_Position: Geologist
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: (508) 548-8700 x2259
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: ependleton@usgs.gov

Process_Step:

Process_Description:

Edits to the metadata were made to fix any errors that MP v 2.9.34 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 source information was incomplete and had to be modified to meet the standard. Formatting of the cross-references was fixed to meet the metadata standard. Minor fixes to the attribute format for some attributes were needed. The distribution format name was modified in an attempt to be more consistent with other metadata files of the same data format. 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: 20161103
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

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: String
Point_and_Vector_Object_Count: 395

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: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: sidescan_trk_07007
Entity_Type_Definition: ESRI polyline shapefile
Entity_Type_Definition_Source: ESRI

Attribute:

Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: JD
Attribute_Definition: Julian Day in which sidescan trackline data were collected
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Unrepresentable_Domain: Information unavailable from original metadata.

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: Year
Attribute_Definition: Calendar year in which sidescan trackline data were collected
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Unrepresentable_Domain: Information unavailable from original metadata.

Attribute:

Attribute_Label: Line
Attribute_Definition:

line and file number for corresponding sidescan sonar filename. This information is used during data acquisition, storage, and processing.

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Unrepresentable_Domain: Information unavailable from original metadata.

Attribute:

Attribute_Label: length
Attribute_Definition: length of line segment in UTM Zone 16 N meters
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Unrepresentable_Domain: Information unavailable from original metadata.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Wayne E. Baldwin
Contact_Organization: U.S. Geological Survey

Contact_Position: Geologist
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: (508) 548-8700x2226
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: wbaldwin@usgs.gov

Resource_Description: Downloadable Data
Distribution_Liability:

Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. 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: Shapefile
Format_Version_Number: ArcGIS 9.2
Format_Information_Content:

This WinZip file contains a shapefile of sidescan tracklines offshore of the Chandeleur Islands, LA, and the associated metadata.

File_Decompression_Technique: Use WinZip or pkUnzip
Transfer_Size: 1

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://pubs.usgs.gov/of/2008/1195/GIS_catalog/Tracklines/sidescan_trk_07007.zip

Access_Instructions: Data can be downloaded via the World Wide Web (WWW)

Offline_Option:

Offline_Media: DVD-ROM
Recording_Capacity:

Recording_Density: 4.75
Recording_Density_Units: Gbytes

Recording_Format: UDF

Fees: None

Technical_Prerequisites:

This zip file contains data available in Environmental Systems Research Institute (ESRI) polyline 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 the data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com.

Metadata_Reference_Information:

Metadata_Date: 20240318
Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Elizabeth A. Pendleton
Contact_Organization: U.S. Geological Survey

Contact_Position: Geologist
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 x2259
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 person is no longer with USGS. (updated on 20240318)

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

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