iss2002012_tracklines.shp: Sidescan sonar navigation from USGS cruise 2002-012-FA along the inner continental shelf of northern North Carolina

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: E.R. Thieler
Publication_Date: 2013
Title:
iss2002012_tracklines.shp: Sidescan sonar navigation from USGS cruise 2002-012-FA along the inner continental shelf of northern North Carolina
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2011-1015
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://pubs.usgs.gov/of/2011/1015/data/tracklines/innershelf/iss2002012_tracklines.zip>
Online_Linkage: <https://pubs.usgs.gov/of/2011/1015/data_catalog.html>
Larger_Work_Citation:
Citation_Information:
Originator: E.R. Thieler
Originator: D.S. Foster
Originator: D.M. Mallinson
Originator: E.A. Himmelstoss
Originator: J.E. McNinch
Originator: J.H. List
Originator: E.S. Hammar-Klose
Publication_Date: 2013
Title:
Quaternary Geophysical Framework of the Northeastern North Carolina Coastal System
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2011-1015
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://pubs.usgs.gov/of/2011/1015/>
Description:
Abstract:
The northeastern North Carolina coastal system, from False Cape, Virginia, to Cape Lookout, North Carolina, has been studied by a cooperative research program that mapped the Quaternary geologic framework of the estuaries, barrier islands, and inner continental shelf. This information provides a basis to understand the linkage between geologic framework, physical processes, and coastal evolution at time scales from storm events to millennia. The study area attracts significant tourism to its parks and beaches, contains a number of coastal communities, and supports a local fishing industry, all of which are impacted by coastal change. Knowledge derived from this research program can be used to mitigate hazards and facilitate effective management of this dynamic coastal system.
This regional mapping project produced spatial datasets of high-resolution geophysical (bathymetry, backscatter intensity, and seismic reflection) and sedimentary (core and grab-sample) data. The high-resolution geophysical data were collected during numerous surveys within the back-barrier estuarine system, along the barrier island complex, in the nearshore, and along the inner continental shelf. Sediment cores were taken on the mainland and along the barrier islands, and both cores and grab samples were taken on the inner shelf. Data collection was a collaborative effort between the U.S. Geological Survey (USGS) and several other institutions including East Carolina University (ECU), the North Carolina Geological Survey, and the Virginia Institute of Marine Science (VIMS).
The high-resolution geophysical data of the inner continental shelf were collected during six separate surveys conducted between 1999 and 2004 (four USGS surveys north of Cape Hatteras: 1999-045-FA, 2001-005-FA, 2002-012-FA, 2002-013-FA, and two USGS surveys south of Cape Hatteras: 2003-003-FA and 2004-003-FA) and cover more than 2600 square kilometers of the inner shelf. Single-beam bathymetry data were collected north of Cape Hatteras in 1999 using a Furuno fathometer. Swath bathymetry data were collected on all other inner shelf surveys using a SEA, Ltd. SwathPLUS 234-kHz bathymetric sonar. Chirp seismic data as well as sidescan-sonar data were collected with a Teledyne Benthos (Datasonics) SIS-1000 north of Cape Hatteras along with boomer seismic reflection data (cruises 1999-045-FA, 2001-005-FA, 2002-012-FA and 2002-013-FA). An Edgetech 512i was used to collect chirp seismic data south of Cape Hatteras (cruises 2003-003-FA and 2004-003-FA) along with a Klein 3000 sidescan-sonar system. Sediment samples were collected with a Van Veen grab sampler during four of the USGS surveys (1999-045-FA, 2001-005-FA, 2002-013-FA, and 2004-003-FA). Additional sediment core data along the inner shelf are provided from previously published studies.
A cooperative study, between the North Carolina Geological Survey and the Minerals Management Service (MMS cores), collected vibracores along the inner continental shelf offshore of Nags Head, Kill Devils Hills and Kitty Hawk, North Carolina in 1996. The U.S. Army Corps of Engineers collected vibracores along the inner shelf offshore of Dare County in August 1995 (NDC cores) and July-August 1995 (SNL cores). These cores are curated by the North Carolina Geological Survey and were used as part of the ground validation process in this study.
Nearshore geophysical and core data were collected by the Virginia Institute of Marine Science. The nearshore is defined here as the region between the 10-m isobath and the shoreline. High-resolution bathymetry, backscatter intensity, and chirp seismic data were collected between June 2002 and May 2004. Vibracore samples were collected in May and July 2005.
Shallow subsurface geophysical data were acquired along the Outer Banks barrier islands using a ground-penetrating radar (GPR) system. Data were collected by East Carolina University from 2002 to 2005. Rotasonic cores (OBX cores) from five drilling operations were collected from 2002 to 2006 by the North Carolina Geological Survey as part of the cooperative study with the USGS. These cores are distributed throughout the Outer Banks as well as the mainland.
The USGS collected seismic data for the Quaternary section within the Albemarle-Pamlico estuarine system between 2001 and 2004 during six surveys (2001-013-FA, 2002-015-FA, 2003-005-FA, 2003-042-FA, 2004-005-FA, and 2004-006-FA). These surveys used Geopulse Boomer and Knudsen Engineering Limited (KEL) 320BR Chirp systems, except cruise 2003-042-FA, which used an Edgetech 424 Chirp and a boomer system. The study area includes Albemarle Sound and selected tributary estuaries such as the South, Pungo, Alligator, and Pasquotank Rivers; Pamlico Sound and trunk estuaries including the Neuse and Pamlico Rivers; and back-barrier sounds including Currituck, Croatan, Roanoke, Core, and Bogue.
Purpose:
This trackline data marks the location of sidescan sonar data collected along the inner continental shelf of the northern Outer Banks of North Carolina. The study area includes the Cape Hatteras National Seashore, Cape Lookout National Seashore, the Wright Brothers National Memorial, and Pea Island National Wildlife Refuge.
This data set includes the tracklines (the linear extent) of sidescan sonar data collected with the Teledyne Benthos (Datasonics) SIS-100 during USGS survey 2002-012-FA, conducted June 20 through July 5, 2002 aboard the R/V Atlantic Surveyor.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20020620
Ending_Date: 20020705
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -75.560870
East_Bounding_Coordinate: -75.356030
North_Bounding_Coordinate: 35.898400
South_Bounding_Coordinate: 35.204240
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: sidescan sonar
Theme_Keyword: tracklines
Theme_Keyword: navigation
Theme_Keyword: sidescan
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: seafloor mapping
Theme_Keyword: seafloor
Theme_Keyword: marine geology
Theme_Keyword: field activity serial number 2002-012-FA
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans and estuaries
Theme_Keyword: oceans and coastal
Theme_Keyword: location
Place:
Place_Keyword_Thesaurus: General
Place_Keyword: Corolla
Place_Keyword: Duck
Place_Keyword: Kill Devil Hills
Place_Keyword: Nags Head
Place_Keyword: Oregon Inlet
Place_Keyword: Rodanthe
Place_Keyword: Salvo
Place_Keyword: Avon
Place_Keyword: Hatteras
Place_Keyword: Ocracoke
Place_Keyword: Portsmouth
Place_Keyword: Long Point
Place_Keyword: North Carolina
Place_Keyword: NC
Place_Keyword: Outer Banks
Place_Keyword: Cape Hatteras
Place_Keyword: Cape Hatteras National Seashore
Place_Keyword: Hatteras Inlet
Place_Keyword: Cape Lookout
Place_Keyword: Cape Lookout National Seashore
Place_Keyword: Wright Brothers National Memorial
Place_Keyword: Core Banks
Place_Keyword: United States
Place_Keyword: North America
Place_Keyword: Raleigh Bay
Place_Keyword: Atlantic Ocean
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 as the originator of the dataset.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: E.R. Thieler
Contact_Organization: U.S. Geological Survey
Contact_Position: Research 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 x2350
Contact_Facsimile_Telephone: 508.457.2310
Contact_Electronic_Mail_Address: rthieler@usgs.gov
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: All attributes were checked in a consistent manner.
Logical_Consistency_Report:
These data are logically consistent; they were acquired and processed following an identical procedure. Navigation data have been stripped from the header of the raw sonar data. They have been quality checked by comparing to navigation data acquired during cruise operations.
Completeness_Report:
These tracklines represent the navigation data for all quality sidescan sonar lines collected along the inner continental shelf during U.S. Geological Survey research cruise 2002-012-FA.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The ship was navigated with differential GPS (DGPS), and location of the sidescan-sonar tow vehicle was calculated in a variety of ways. In shallow water an acoustic ranging system was used in concert with vehicle depth and ship heading to compute vehicle location. In deeper water depths where the acoustic ranging system did not work, vehicle location was calculated based on the amount of wire out instead of the acoustic range. Vehicle location was interpolated between the measured points. Differential GPS navigation is assumed to be accurate within 1-2 meters. All DGPS data are referenced to WGS84. Slant-range distance is recorded between the sidescan-sonar tow vehicle and a sidemount rigged with an acoustic transponder. Offset between the sidemount and DGPS antennae is measured. Basic trigonomic calculations use the slant-range offset to calculate 'fish' (tow-vehicle) navigation. An assumption in these calculations is that the tow-vehicle is traveling directly behind the vessel; movement to port or starboard is not accounted for within 'fish' navigation.
Lineage:
Process_Step:
Process_Description:
Sidescan-sonar data were collected using a Teledyne Benthos (Datasonics SIS-1000) 100-120 kHz sidescan-sonar system and logged digitally at a sample rate resulting in a 0.18-m pixel size in the across-track direction and approximately 0.14-m in the along-track direction following the methodology outlined in Danforth and others (1991).
Process_Date: 200206
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: E. Robert Thieler
Contact_Organization: U.S. Geological Survey
Contact_Position: Research 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 x2350
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: rthieler@usgs.gov
Process_Step:
Process_Description:
The navigation fixes were batch converted to a single text file of points along each survey line using the Linux shell script "convertXsonarNav," which parses all of the .nav files created during Xsonar processing, reprocess the data to UTM zone 18, and outputs easting, northing, julian date, linename to a new comma-separated value text file.
Process_Date: 200310
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Emily Himmelstoss
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 x2262
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: ehimmelstoss@usgs.gov
Process_Step:
Process_Description:
A point feature class is created from the x,y coordinates within ArcCatalog by right-clicking on the table in the ArcCatalog tree, "Create Feature Class" > "From XY Table" is selected from the pop-up menu. The appropriate x-coordinate and y-coordinate fields are specified in the window dialog and the spatial reference information was defined (UTM 18N, WGS84). The point data contains attribute fields that identify a unique track ID or line number for each file.
Process_Date: 200607
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Emily Himmelstoss
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 x2262
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: ehimmelstoss@usgs.gov
Process_Step:
Process_Description:
The new point shapefile is converted to a polyline feature class using XTools Pro (v3.2), a software extension for ArcGIS. The "Make one Polyline from Points" tool was used to convert the point shapefile into a polyline shapefile. The unique track ID or line number for the sequence of points along a single trackline was used to group the point data when converting to lines.
Process_Date: 200607
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Emily Himmelstoss
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 x2262
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: ehimmelstoss@usgs.gov
Process_Step:
Process_Description:
The Length_km field was added to the attribute table by calculating the length of each trackline line segment using XTools Pro (v5.2.0). The length was measured in UTM zone 18N (WGS 84) and reported in kilometer units.
Process_Date: 20110407
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Emily Himmelstoss
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 x2262
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: ehimmelstoss@usgs.gov
Process_Step:
Process_Description:
The trackline shapefile was projected from UTM 18N (WGS 84) to geographic (WGS 84) coordinates using ArcToolbox (v9.3) "Data Management Tools" > "Projections and Transformations" > "Feature" > "Project".
Process_Date: 20110407
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Emily Himmelstoss
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 x2262
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: ehimmelstoss@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: 103
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: iss2002012_tracklines
Entity_Type_Definition: Sidescan sonar trackline data along the inner continental shelf
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: LineName
Attribute_Definition:
Name of line. A unique value is given to each line segment in the survey.
Attribute_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Length_km
Attribute_Definition: Length of line segment in kilometers (UTM zone 18N, WGS 84)
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.604118
Range_Domain_Maximum: 24.285328
Attribute_Units_of_Measure: kilometers
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: E.R. Thieler
Contact_Organization: U.S. Geological Survey
Contact_Position: Research 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: 508-458-8700 x2350
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: rthieler@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: WinZip
Format_Version_Number: 9.0
Format_Information_Content:
This WinZip file contains a shapefile of the sidescan sonar navigation data collected along the inner shelf of northern North Carolina and the associated metadata.
File_Decompression_Technique: Use WinZip or pkUnzip
Transfer_Size: 78 KB
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
<https://pubs.usgs.gov/of/2011/1015/data/tracklines/innershelf/iss2002012_tracklines.zip>
Network_Resource_Name: <https://pubs.usgs.gov/of/2011/1015/data_catalog.html>
Access_Instructions: Data are downloadable via the World Wide Web (WWW)
Fees: None
Technical_Prerequisites:
These 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: 20110608
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Emily Himmelstoss
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 x2262
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: ehimmelstoss@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_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Generated by mp version 2.9.6 on Mon Jun 17 14:29:08 2013