JPEG images of chirp seismic data from back-barrier research cruise 2002-015-FA collected by the U.S. Geological Survey

Metadata:

• Identification_Information
• Data_Quality_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: 2013

Title:

JPEG images of chirp seismic data from back-barrier research cruise 2002-015-FA collected by the U.S. Geological Survey

Geospatial_Data_Presentation_Form: remote-sensing image

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/seismics/JPEG/backbarrier/bbc2002015_seismics.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:

JPEG images of each seismic line from the back-barrier were generated in order to incorporate images of the seismic data into Geographic Information System (GIS) projects and data archives utilizing HTML. The JPEG format is universal and enables easy transfer of data. These data yield an image presentation of the seismic data acquired.

Supplemental_Information:

Each image name includes a unique line number. The data are organized in folders based on survey date and instrument type (bbc for back- barrier chirp).

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20020729

Ending_Date: 20020816

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -76.077336

East_Bounding_Coordinate: -75.501107

North_Bounding_Coordinate: 35.849296

South_Bounding_Coordinate: 35.156184

Keywords:

Theme:

Theme_Keyword_Thesaurus: General

Theme_Keyword: seismic reflection images

Theme_Keyword: SEG-Y

Theme_Keyword: chirp

Theme_Keyword: JPEG

Theme_Keyword: JPG

Theme_Keyword: Field activity serial number 2002-015-FA

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:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category

Theme_Keyword: oceans and estuaries

Theme_Keyword: geoscientificInformation

Place:

Place_Keyword_Thesaurus: General

Place_Keyword: Pamlico Sound

Place_Keyword: Neuse River

Place_Keyword: Pamlico River

Place_Keyword: Pungo River

Place_Keyword: Alligator River

Place_Keyword: Alligator River-Pungo River Canal

Place_Keyword: intracoastal waterway

Place_Keyword: Albemarle Sound

Place_Keyword: Alligator River

Place_Keyword: Bull Bay

Place_Keyword: Pasquotank River

Place_Keyword: North River

Place_Keyword: Currituck Sound

Place_Keyword: Roanoke Sound

Place_Keyword: Croatan Sound

Place_Keyword: Core Sound

Place_Keyword: West Bay

Place_Keyword: Long Bay

Place_Keyword: West Thorofare Bay

Place_Keyword: Thorofare Bay

Place_Keyword: Cedar Island Bay

Place_Keyword: Jarrett Bay

Place_Keyword: The Straits

Place_Keyword: Back Sound

Place_Keyword: Lighthouse Bay

Place_Keyword: Lookout Bight

Place_Keyword: back-barrier

Place_Keyword: North Carolina

Place_Keyword: NC

Place_Keyword: United States

Place_Keyword: U.S. Atlantic East Coast

Place_Keyword: Atlantic Margin

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. 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: 02543-1015

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 2; ESRI ArcCatalog 9.0.0.535

Data_Quality_Information:

Completeness_Report:

JPEGs for all quality chirp seismic lines collected within this back-barrier survey are included.

Lineage:

Process_Step:

Process_Description:

Seismic reflection data in standard SEG-Y format and Knudsen Engineering ASCII (KEA) navigation data were acquired using a Knudsen Sounder Suite acquisition system. The navigation data are stored in the KEA files as geographic coordinates (WGS 84). This process step and all subsequent steps (unless otherwise noted) were performed by the same person: David S. Foster.

Process_Date: 200207

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: David S. Foster

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 x2271

Contact_Facsimile_Telephone: (508) 457-2310

Contact_Electronic_Mail_Address: dfoster@usgs.gov

Process_Step:

Process_Description:

A script was run that used SIOSEIS and Seismic Unix to predict and remove sea surface heave, and mute water column portions of the seismic traces by: 1) automatically picking the sea floor by identifying peak amplitudes within a vertical window; 2) smoothing sea floor picks using an along track filter approximating the period of sea surface heave; 3) creating a series of difference values between the raw and smoothed seafloor picks for each trace; 4) shifting traces up or down according to the difference values; and 5) muting each trace between time zero and the time of the smoothed sea floor pick, thus removing noise within the water column. Changes to the traces within each profile were saved to new "heave corrected" SEG-Y files, which were used for creation of JPEG browse images and digital interpretation.

Process_Date: 2004

Distribution_Information:

Distributor:

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

Country: USA

Contact_Voice_Telephone: 508-548-8700 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 all JPEG images of back-barrier seismic data from this cruise, and the associated metadata.

File_Decompression_Technique: Use WinZip or pkUnzip

Transfer_Size: 294 MB

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

<https://pubs.usgs.gov/of/2011/1015/data/seismics/JPEG/backbarrier/bbc2002015_seismics.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:

This image is available at a Joint Photographic Experts Group (JPEG) file format. To utilize this data, the user must have an image viewer or image processing software package capable of importing a JPEG image.

Metadata_Reference_Information:

Metadata_Date: 20110725

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey

Contact_Person: Emily Himmelstoss

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_Access_Constraints: None

Metadata_Use_Constraints: None

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile