SEISMIC_TRKNAV.SHP: Trackline navigation of chirp seismic-reflection data collected of the southern shore of Martha's Vineyard, MA, 2007 (ESRI POLYLINE SHAPEFILE).

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:

SEISMIC_TRKNAV.SHP: Trackline navigation of chirp seismic-reflection data collected of the southern shore of Martha's Vineyard, MA, 2007 (ESRI POLYLINE SHAPEFILE).

Edition: 1.0

Geospatial_Data_Presentation_Form: vector digital data

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 2008-1288

Publication_Information:

Publication_Place: Woods Hole, MA

Publisher: U.S. Geological Survey

Online_Linkage:

<https://pubs.usgs.gov/of/2008/1288/GIS_catalog/Tracklines/seismic_trknav.zip>

Online_Linkage: <https://pubs.usgs.gov/of/2008/1288/html/gis.html>

Larger_Work_Citation:

Citation_Information:

Originator: Denny, J.F.

Originator: Danforth, W.W.

Originator: Foster, D.S.

Originator: Sherwood, C.R.

Publication_Date: 2009

Title:

Geophysical Data Collected off the South Shore of Martha's Vineyard, Massachusetts

Edition: 1.0

Geospatial_Data_Presentation_Form: online

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 2008-1288

Publication_Information:

Publication_Place: Woods Hole

Publisher: U.S. Geological Survey

Online_Linkage: <https://pubs.usgs.gov/of/2008/1288/>

Description:

Abstract:

The USGS Woods Hole Science Center conducted a nearshore geophysical survey offshore of the southern coast of Martha's Vineyard, in the vicinity of the Martha's Vineyard Coastal Observatory (MVCO) in August 2007. This mapping program was part of a larger research effort supporting the Office of Naval Research (ONR) Ripples Directed-Research Initiative (DRI) studies at MVCO by providing data collection and modeling. The geophysical data will be used to provide initial conditions for wave and circulation models for the study area. Ultimately, geophysical mapping, oceanographic measurements and modeling will help to improve our understanding of coastal sediment-transport processes.

The geophysical mapping utilized a suite of high-resolution instrumentation to map the surficial sediment distribution, depth and sub-surface geology: dual-frequency 100/500 KHz sidescan-sonar system, 234-KHz interferometric sonar, and 500 Hz -12 KHz chirp sub-bottom profiler. The survey was conducted aboard the M/V Megan Miller August 9-13, 2007. The study area covers 35 square kilometers from about 0.2 km to 5-km offshore of the south shore of Martha's Vineyard, and ranges in depth from ~ 5 to 20 meters.

Purpose:

This dataset contains trackline navigation for approximately 680 km of EdgeTech SB-512i chirp seismic-reflection data collected by the U.S. Geological Survey during Woods Hole Science Center cruise 07011 off the southern shore of Martha's Vineyard, 2007. These lines, in conjunction with the shot-point navigation can be used to correlate the seismic-reflection profiles with other data in the GIS.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20070809

Ending_Date: 20070813

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -70.600292

East_Bounding_Coordinate: -70.511213

North_Bounding_Coordinate: 41.347370

South_Bounding_Coordinate: 41.301252

Keywords:

Theme:

Theme_Keyword_Thesaurus: General

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: Field Activity Number 07011

Theme_Keyword: R/V Megan Miller

Theme_Keyword: ESRI Shapefile

Theme_Keyword: vector data

Theme_Keyword: seismic reflection

Theme_Keyword: seismic profiles

Theme_Keyword: seismic navigation

Theme_Keyword: subbottom

Theme_Keyword: chirp

Theme_Keyword: EdgeTech SB-0512i

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category

Theme_Keyword: geoscientificInformation

Theme_Keyword: oceans

Theme_Keyword: oceans and coastal

Theme_Keyword: oceans and estuaries

Place:

Place_Keyword_Thesaurus: General

Place_Keyword: North America

Place_Keyword: Southeastern Massachusetts

Place_Keyword: Martha's Vineyard

Place_Keyword: Cape Cod

Place_Keyword: Elizabeth Islands

Place_Keyword: Atlantic Ocean

Place_Keyword: United States

Place_Keyword: Northeast United States

Place_Keyword: Atlantic Ocean

Access_Constraints: None

Use_Constraints:

The U.S. Geological Survey asks to be referenced as the originator of the dataset in any future publications.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jane Denny

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) 548-8700x2311

Contact_Facsimile_Telephone: 5084572310

Contact_Electronic_Mail_Address: jdenny@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name:

<https://pubs.usgs.gov/of/2008/1288/GIS_catalog/Tracklines/seismic_trknav_sm.jpg>

Browse_Graphic_File_Description:

JPEG image of trackline navigation for EdgeTech 512i seismic-reflection data collected off the southern shore of Martha's Vineyard, MA, 2007ile

Browse_Graphic_File_Type: JPEG

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850

Cross_Reference:

Citation_Information:

Originator: John Stockwell

Publication_Date: 2007

Title: Seismic Un*x

Geospatial_Data_Presentation_Form: document

Publication_Information:

Publication_Place: Golden, CO

Publisher: Center for Wave Phenomena - Colorado School of Mines

Online_Linkage: <http://www.cwp.mines.edu/cwpcodes/>

Cross_Reference:

Citation_Information:

Originator: Norris, Michael W.

Originator: Faichney, Alan K.

Publication_Date: 2002

Title: SEGY Rev.1 Data exchange Format1

Publication_Information:

Publication_Place: Tulsa, OK

Publisher: Society of Exploration Geophysicists

Online_Linkage:

<http://www.seg.org/SEGportalWEBproject/prod/SEG-Publications/Pub-Technical-Standards/Documents/seg_y_rev1.pdf>

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

All attributes were evaluated during processing as standard quality control to ensure attributes contain accurate and relevant information and values.

Logical_Consistency_Report:

Seismic trackline navigation was generated from unique shot navigation for the seismic system. The unique shot navigation data were evaluated during processing for spurious points; all spurious points were removed prior to generating the trackline navigation.

Completeness_Report:

Trackline navigation for all seismic data were used to generate this shapefile. Line 92 was saved as l91f1_001 during acquisition.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The EdgeTech SB-0512i was towed approximately 5 meters astern and approximately 1.5 meters below the sea surface. A GPS navigation receiver was mounted on the seismic sled to provide seismic navigation. GPS positions were sent, via radio modem, to a receiver positioned on the aft roof of the acquisition van aboard the R/V Megan Miller. GPS positions were sent directly to the EdgeTech J-Star seismic acquisition software. The horizontal accuracy of GPS is assumed to be ± 10 m (<http://www.navcen.uscg.gov/>).

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20070809

Ending_Date: 20070813

Source_Currentness_Reference: ground condition

Source_Contribution:

Approximately 680 km of high-resolution chirp seismic-reflection profiles were collected using an EdgeTech Geo-Star FSSB sub-bottom profiling system and an SB-0512i towfish (0.5-12 kHz) mounted on a catamaran and towed off the stern of the R/V Megan Miller. EdgeTech J-Star seismic acquisition software was used to control the Geo-Star topside unit and digitally log trace data in the EdgeTech JSF format (<http://www.edgetech.com/productlinemarine.html>). Data were acquired using a 0.25-s shot rate, 5-ms pulse length and a 0.5-to-8.0 kHz swept frequency. Recorded trace lengths were approximately 250-ms. Trackline spacing varied from 40 meters in water depths less than 15 meters to 70-meter spacing in water depths greater than 15 meters. Shore perpendicular tracklines spacing ranged from 500 m to 1 km apart.

Process_Step:

Process_Description:

A C program 'jsftosegy' (no version), developed by Tom O'Brien (USGS - Woods Hole Seafloor Mapping Group) was used to convert raw chirp traces in the EdgeTech JSF format (acquired using EdgeTech J-Star software) to chirp-processed, envelope traces in the SEG-Y rev. 1 standard format.

Process_Date: 2007

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Dave Foster

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) 548-8700x2271

Contact_Facsimile_Telephone: 5084572310

Contact_Electronic_Mail_Address: dfoster@usgs.gov

Process_Step:

Process_Description:

A script was executed using Seismic Unix (version 4.1) to read the SEG-Y files, write a Seismic Unix file, and extract SEG-Y trace header information, which included shot number, longitude, latitude, year, filename, Julian day, and time of day (UTC). Geographic coordinates (WGS84) were converted to UTM zone 19 coordinates (WGS84) using Proj (version 4.6.0). Before saving the header information to a text file, the data were filtered using AWK (no version) to save only unique shot point locations. An additional AWK script was then used to convert time of day (UTC) to individual fields of hour, minute and second. The unique shot navigation for each seismic line were then concatenated into a comma delimited (.csv) text file.

Process_Date: 2007

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Dave Foster

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) 548-8700x2271

Contact_Facsimile_Telephone: 5084572310

Contact_Electronic_Mail_Address: dfoster@usgs.gov

Process_Step:

Process_Description:

The text file (*.csv) was imported into ESRI ArcMap 9.2 using Tools - Add XY Data and converted to an event theme. The event theme was then saved to a point shapefile and the projection was defined as Geographic Coordinate System, WGS84 (GCS_WGS_1984). The point shapefile was visually inspected for spurious data points and these data points were manually deleted.

Process_Date: 2008

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Dave Foster

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) 548-8700x2271

Contact_Facsimile_Telephone: 5084572310

Contact_Electronic_Mail_Address: dfoster@usgs.gov

Process_Step:

Process_Description:

The point shapefile containing unique shot point positions was used as an input for a VACExtras (version 1.8), a VB collection of tools developed by VeeAnn Cross (USGS-WHSC), which converts point data to a new polyline shapefile, based on the order of records contained within one attribute field. The shot number field was used to define the point order.

ArcGIS 9.2

Process_Date: 2008

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jane Denny

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) 548-8700x2311

Contact_Facsimile_Telephone: 5084572310

Contact_Electronic_Mail_Address: jdenny@usgs.gov

Process_Step:

Process_Description:

A 'Cruise ID' , 'SeisImage', 'Shot_Rate', 'Frequency', 'System' fields were added to the attribute table within ArcMap 9.2. The length of each line segment was calculated and included in a new attribute field using XTools Pro for ArcGIS desktop (version 5.3.0), specifying UTM Zone 19 N, WGS84 - kilometers.

Process_Date: 2008

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jane Denny

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) 548-8700x2311

Contact_Facsimile_Telephone: 5084572310

Contact_Electronic_Mail_Address: jdenny@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: 107

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: seismic_trknav

Entity_Type_Definition: ESRI polyline shapefile

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: FileName

Attribute_Definition: Name of seismic line file

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Unrepresentable_Domain:

Naming convention for the JSF format seismic data. Format: L1F1_000, where L=Line, 1= Line number, f=file, 1=file number, and '_000' is an optional JSF line incrementor.

Attribute:

Attribute_Label: System

Attribute_Definition: Seismic system used for acquisition

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Unrepresentable_Domain: Character Set

Attribute:

Attribute_Label: Frequency

Attribute_Definition: The frequency range of the seismic system used for navigation

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Unrepresentable_Domain: Frequency range used during seismic data acquisition.

Attribute:

Attribute_Label: Shot_Rate

Attribute_Definition: The shot rate used during acqusition of seismic data

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 250 ms

Enumerated_Domain_Value_Definition: shot rate in milliseconds

Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute:

Attribute_Label: SeisImage

Attribute_Definition:

Name of the seismic profile image associated with an individual seismic line (used for hyperlinking)

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Unrepresentable_Domain:

Directory structure pointing to a JPEG image of a specific seismic line.

Attribute:

Attribute_Label: Cruise_ID

Attribute_Definition: Unique USGS field activity number

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 07011

Enumerated_Domain_Value_Definition:

USGS Cruise Identification Number, where the first two digiits represent the calendar year and the last three digits represent the cruise number

Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute:

Attribute_Label: Length

Attribute_Definition: Length of the seismic line in kilometers (UTM Zone 19N, WGS84)

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.684543

Range_Domain_Maximum: 7.08901

Attribute_Units_of_Measure: Kilometers

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jane Denny

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) 548-8700x2311

Contact_Facsimile_Telephone: 5084572310

Contact_Electronic_Mail_Address: jdenny@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 512i seismic-reflection profile trackline navigation and associated metadata.

File_Decompression_Technique: Use WinZip or pkUnzip

Transfer_Size: 2 MB

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

<https://pubs.usgs.gov/of/2008/1288/GIS_catalog/Tracklines/seismic_trknav.zip>

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

Fees: none

Custom_Order_Process:

Digital copies of the chirp seismic data may also be obtained in the SEG-Y Rev. 1 standard format upon request. The data would be packaged on DVD, and contain the chirp-processed, envelope traces.

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: 20091005

Metadata_Review_Date: 2009

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jane Denny

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) 548-8700x2311

Contact_Facsimile_Telephone: 5084572310

Contact_Electronic_Mail_Address: jdenny@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