Seismic Systems: Shot Point Navigation

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: Jane F. Denny

Publication_Date: 2002

Title: Seismic Systems: Shot Point Navigation

Geospatial_Data_Presentation_Form: digital vector data

Series_Information:

Series_Name: ESRI ArcView shapefile

Issue_Identification: version 3.2

Publication_Information:

Publication_Place: Woods Hole, MA

Publisher: U.S. Geological Survey

Larger_Work_Citation:

Citation_Information:

Originator: Schwab, William C.

Originator: Denny, Jane F.

Originator: Foster, David S.

Originator: Lotto, Linda L.

Originator: Allison, Mead A.

Originator: Uchupi, Elazar

Originator: Swift, B. Ann

Originator: Danforth, William W.

Originator: Thieler, Robert E.

Originator: Butman, Bradford

Publication_Date: 2002

Title:

High-Resolution Quaternary seismic stratigraphy of the New York Bight Continental Shelf

Geospatial_Data_Presentation_Form:

Maps, remote sensing imagery, tabular digital data, and raster and vector digital data

Series_Information:

Series_Name: Open-File Report

Issue_Identification: OFR02-152

Publication_Information:

Publication_Place: Woods Hole, MA

Publisher: U.S. Geological Survey

Description:

Abstract:

These data represent the shot point navigation data for the seismic-reflection systems utilized during U.S. Geological Survey geophysical research cruises. These data are stored in intervals of 500, 1000, or 2000 shots.

Purpose:

Beginning in 1995, the USGS, in cooperation with the U.S Army Corps of Engineers (USACE), New York District, began a program to generate reconnaissance maps of the sea floor offshore of the New York-New Jersey metropolitan area, one of the most populated coastal regions of the United States. The goal of this mapping program is to provide a regional synthesis of the sea-floor environment, including a description of sedimentary environments, sediment texture, seafloor morphology, and geologic history to aid in understanding the impacts of anthropogenic activities, such as ocean dumping. This mapping effort differs from previous studies of this area by obtaining digital, sidescan sonar images that cover 100 percent of the sea floor. This investigation was motivated by the need to develop an environmentally acceptable solution for the disposal of dredged material from the New York- New Jersey Port, by the need to identify potential sources of sand for nourishment of the southern shore of Long island, and by the opportunity to develop a better understanding of the transport and long-term fate of contaminants by investigations of the present distribution of materials discharged into the New York Bight over the last 100+ years (Schwab and others, 1997).

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19950507

Ending_Date: 19981101

Currentness_Reference: Publication Date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -74.06

East_Bounding_Coordinate: -71.8000

North_Bounding_Coordinate: 41.2322

South_Bounding_Coordinate: 40.15

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: seismic reflection

Theme_Keyword: SEG-Y

Theme_Keyword: Chirp

Theme_Keyword: Boomer

Theme_Keyword: Water Gun

Theme_Keyword: Sparker

Theme_Keyword: shot point

Theme_Keyword: navigation

Place:

Place_Keyword_Thesaurus: New York Bight Apex

Place_Keyword: Atlantic Ocean

Place_Keyword: Southern Long Island

Place_Keyword: New York Inner Shelf

Place_Keyword: New York Bight

Place_Keyword: NY

Access_Constraints: None

Use_Constraints:

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

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jane F. Denny

Contact_Organization: US 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

Country: USA

Contact_Voice_Telephone: 508-457-2311

Contact_Facsimile_Telephone: 508-457-2310

Contact_Electronic_Mail_Address: jdenny@usgs.gov

Native_Data_Set_Environment: ArcView version 3.2 shapefile format

Data_Quality_Information:

Logical_Consistency_Report:

These navigation data have been stripped from the header of seismic SEG-Y data. They have been quality checked by comparing these data to navigation data acquired during cruise operations.

Completeness_Report: Complete

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

DGPS is assumed to be accurate within 1-2 meters. Standard GPS is assumed accurate within 5-10 meters. 99% of the positional data is DGPS. Unless noted, all GPS/DGPS data is referenced to WGS84 (NAD83). Slant-range distance is recorded between the sidescan-sonar tow vehicle and a sidemount rigged with an acoustic transponder during acquisition of CHIRP sub-bottom data. Offset between thesidemount and GPS antennae is measured. Basic trigonomic calculations use the slant-range offset to calculate a '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. Thus, the horizontal accuarcy of the CHIRP tow-vehicle is +/- 15 meters. The horizontal positioning for boomer, sparker, and water gun seismic systems did not account for source and receiver offsets and offset the GPS antennae and the source and streamer. It is estimated that these offsets could lead to inaccuracies of about 30 m.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Jenna C. Hill

Originator: William C. Schwab

Originator: David S. Foster

Publication_Date: 2001

Title:

Archive of Datasonics SIS-1000 Chirp Subbottom Data Collected During USGS Cruise SEAX 95007, New York Bight, 7-25 1995

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 01-97

Publication_Information:

Publication_Place: Woods Hole, MA

Publisher: U.S. Geological Survey

Type_of_Source_Media: DVD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19950507

Ending_Date: 1990525

Source_Currentness_Reference: Publication Date

Source_Citation_Abbreviation: OFR 01-97

Source_Contribution:

This publication contains the raw SEG-Y CHIRP seismic-reflection data stored on DVD-ROM. The navigation used to generate the CHIRP trackline data were stripped from the raw SEG-Y header.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Hill, Jenna C.

Originator: Schwab, W.C.

Originator: Foster, D.S.

Publication_Date: 2001

Publication_Time: unknown

Title:

Archive of Chirp Subbottom Data Collected Druing USGS Cruise SEAX96004 New York Bight, 1 May - 9 June, 1996.

Edition: 1

Geospatial_Data_Presentation_Form: SEG-Y format

Series_Information:

Series_Name: U.S. Geological Survey Open-File Report

Issue_Identification: 01-96

Publication_Information:

Publication_Place: Woods Hole, MA

Publisher: U.S. Geological Survey

Type_of_Source_Media: DVD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19960501

Ending_Date: 19960606

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: CHIRP Archive

Source_Contribution:

This publication contains the raw SEG-Y CHIRP seismic-reflection data stored on DVD-ROM. The navigation used to generate the CHIRP trackline data were stripped from the raw SEG-Y header.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Hill, Jenna C.

Originator: Schwab, W.C.

Originator: Foster, D.S.

Publication_Date: 2001

Publication_Time: unknown

Title:

Archive of Water Gun Subbottom Data Collected Druing USGS Cruise SEAX95007 New York Bight, 7-25 May, 1995

Edition: 1

Geospatial_Data_Presentation_Form: SEG-Y format

Series_Information:

Series_Name: U.S. Geological Survey Open-File Report

Issue_Identification: 01-157

Publication_Information:

Publication_Place: Woods Hole, MA

Publisher: U.S. Geological Survey

Type_of_Source_Media: DVD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19950501

Ending_Date: 19950525

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: CHIRP Archive

Source_Contribution:

This publication contains the raw SEG-Y CHIRP seismic-reflection data stored on DVD-ROM. The navigation used to generate the CHIRP trackline data were stripped from the raw SEG-Y header.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Hill, Jenna C.

Originator: Schwab, W.C.

Originator: Foster, D.S.

Publication_Date: 2001

Publication_Time: unknown

Title:

Archive of Boomer Subbottom Data Collected Druing USGS Cruise SEAX96004 New York Bight, 1 May - 9 June, 1996.

Edition: 1

Geospatial_Data_Presentation_Form: SEG-Y format

Series_Information:

Series_Name: U.S. Geological Survey Open-File Report

Issue_Identification: 00-340

Publication_Information:

Publication_Place: Woods Hole, MA

Publisher: U.S. Geological Survey

Type_of_Source_Media: DVD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19960501

Ending_Date: 19960606

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: CHIRP Archive

Source_Contribution:

This publication contains the raw SEG-Y CHIRP seismic-reflection data stored on DVD-ROM. The navigation used to generate the CHIRP trackline data were stripped from the raw SEG-Y header.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Hill, Jenna C.

Originator: Schwab, W.C.

Originator: Foster, D.S.

Publication_Date: 2001

Publication_Time: unknown

Title:

Archive of Water Gun Subbottom Data Collected Druing USGS Cruise SEAX96004 New York Bight, 1 May - 9 June, 1996.

Edition: 1

Geospatial_Data_Presentation_Form: SEG-Y format

Series_Information:

Series_Name: U.S. Geological Survey Open-File Report

Issue_Identification: 00-396

Publication_Information:

Publication_Place: Woods Hole, MA

Publisher: U.S. Geological Survey

Type_of_Source_Media: DVD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19960501

Ending_Date: 19960606

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: CHIRP Archive

Source_Contribution:

This publication contains the raw SEG-Y CHIRP seismic-reflection data stored on DVD-ROM. The navigation used to generate the CHIRP trackline data were stripped from the raw SEG-Y header.

Process_Step:

Process_Description:

The seismic shot navigation is received by the differential GPS system (DGPS), sent directly to the seismic acquisition system, and recorded in the SEG-Y header of each file. The navigation is later extracted from the SEG-Y header, resampled to extract every 500, 1000, or 2000 shots, converted from its native UTM projection (zone 18, units meters, WGS84 datum) to Geographic Coordinate System, and formatted into a comma-delimited ASCII file. This file is imported into ArcView 3.2 as a table. The table is then converted into a point shapefile.

Process_Date: 2000

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jane F. Denny

Contact_Organization: US 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

Country: USA

Contact_Voice_Telephone: 508-457-2311

Contact_Facsimile_Telephone: 508-457-2310

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: point

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000089992

Longitude_Resolution: 0.000089992

Geographic_Coordinate_Units: decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: WGS84

Ellipsoid_Name: WGS84

Semi-major_Axis: 6378137.0000000

Denominator_of_Flattening_Ratio: 298.26

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: Assumed sea level

Altitude_Resolution: 1

Altitude_Distance_Units: Two-way travel time

Altitude_Encoding_Method: Attribute values

Depth_System_Definition:

Depth_Datum_Name: Local surface

Depth_Resolution: 1

Depth_Distance_Units: Meters

Depth_Encoding_Method: Attribute values

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Seismic Shot Point Navigation

Entity_Type_Definition: Shapefile Attribute Table

Entity_Type_Definition_Source: ArcView 3.2

Attribute:

Attribute_Label: Shape

Attribute_Definition: internal ArcView 3.2 ID

Attribute_Definition_Source: ArcView 3.2

Attribute_Domain_Values:

Unrepresentable_Domain: ArcView 3.2

Attribute:

Attribute_Label: Cruise

Attribute_Definition: USGS Cruise ID Number

Attribute_Definition_Source: USGS Internal ID

Attribute_Domain_Values:

Unrepresentable_Domain: Cruise ID Number

Attribute:

Attribute_Label: Source

Attribute_Definition: Seismic data source

Attribute_Definition_Source: none

Attribute_Domain_Values:

Unrepresentable_Domain: Seismic data source

Attribute:

Attribute_Label: X_coord

Attribute_Definition: X Coordinate; Geographic Coodinate System (decimal degrees)

Attribute_Definition_Source: data set

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -74.06

Range_Domain_Maximum: -71.8000

Attribute:

Attribute_Label: Y_coord

Attribute_Definition: Y-Coordinate; Geographic Coordinate System (decimal degrees)

Attribute_Definition_Source: data set

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 40.15

Range_Domain_Maximum: 41.2322

Attribute:

Attribute_Label: Linename

Attribute_Definition: Line Number

Attribute_Definition_Source: data set

Attribute_Domain_Values:

Unrepresentable_Domain: Line Number

Attribute:

Attribute_Label: Sp

Attribute_Definition: Shot Point Number

Attribute_Definition_Source: data set

Attribute_Domain_Values:

Unrepresentable_Domain: Shot Point Number

Distribution_Information:

Distribution_Liability:

This publication was prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data published on this DVD-ROM have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and/or the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of this data, software, or related materials.

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jane F. Denny

Contact_Organization: US 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

Country: USA

Contact_Voice_Telephone: 508-457-2311

Contact_Facsimile_Telephone: 508-457-2310

Contact_Electronic_Mail_Address: jdenny@usgs.gov

Metadata_Reference_Information:

Metadata_Date: 20020119

Metadata_Review_Date: 2002

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jane F. Denny

Contact_Organization: US 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

Country: USA

Contact_Voice_Telephone: 508-457-2311

Contact_Facsimile_Telephone: 508-457-2310

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_Access_Constraints: None

Metadata_Use_Constraints: None