U.S. Geological Survey, 2010, DH_SeabossTrackline: Survey lines along which SEABed Observation and Sampling System (SEABOSS) video were collected by the U.S. Geological Survey offshore of Massachusetts between Duxbury and Hull.: Open-File Report 2009-1072, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, Massachusetts.This is part of the following larger work.Online Links:
- <https://pubs.usgs.gov/of/2009/1072/GIS/shapefile/DH_SeabossTrackline.zip>
- <https://pubs.usgs.gov/of/2009/1072/html/appendix1.html>
Barnhardt, Walter A. , Ackerman, Seth D. , Andrews, Brian D. , and Baldwin, Wayne E. , 2010, Geophysical and Sampling Data from the Inner Continental Shelf: Duxbury to Hull, Massachusetts.: Open-File Report 2009-1072, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, Massachusetts.Online Links:
This is a Vector data set. It contains the following vector data types (SDTS terminology):
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000001. Longitudes are given to the nearest 0.000001. Latitude and longitude values are specified in Decimal degrees.
The horizontal datum used is D_WGS_1984.
The ellipsoid used is WGS_1984.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257224.
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
Character string of width 4
| Range of values | |
|---|---|
| Minimum: | 41.37 |
| Maximum: | 347.51 |
| Units: | meters |
| Resolution: | 0.01 |
Character string of width 4
Character string of width 8
Character string of width 8
Character string of width 254
Character string of width 10
Character string of width 25
Character string of width 25
508-548-8700 x2315 (voice)
508-457-2310 (FAX)
sackerman@usgs.gov
This data set includes the tracklines (the linear extent) of bottom video acquired with the large SEABed Observation and Sampling System (SEABOSS) during USGS survey 07003, conducted September 7-11, 2007 aboard the R/V Connecticut offshore Massachusetts in the Duxbury to Hull survey area. This data set was collected to ground-truth (verify) the acoustic data sets that were acquired during NOAA hydrographic survey H10993 (2003) and USGS geophysical surveys 06012 (2006) and 07001 (2007). High-resolution digital photographs of the sea-floor were also taken during the video drift (see shapefile DH_BottomPhotos.shp)
Person who carried out this activity:
(508) 548-8700 x2315 (voice)
(508) 457-2310 (FAX)
sackerman@usgs.gov
cat gpgga_out* > 07003_allnav_gpgga_formatted.csv
Person who carried out this activity:
508-548-8700 x2315 (voice)
508-457-2310 (FAX)
sackerman@usgs.gov
Data sources produced in this process:
Person who carried out this activity:
508-548-8700 x2315 (voice)
508-457-2310 (FAX)
sackerman@usgs.gov
Data sources produced in this process:
Person who carried out this activity:
508-548-8700 x2315 (voice)
508-457-2310 (FAX)
sackerman@usgs.gov
Data sources produced in this process:
Person who carried out this activity:
508-548-8700 x2315 (voice)
508-457-2310 (FAX)
sackerman@usgs.gov
Data sources produced in this process:
Person who carried out this activity:
508-548-8700 x2315 (voice)
508-457-2310 (FAX)
sackerman@usgs.gov
Data sources produced in this process:
Blackwood, D., and Parolski, K., 2001, Seabed observation and sampling system: Sea Technology v. 42, no. 2, p. 39-43.
Barnhardt, Walter A. , Andrews, Brian D. , and Butman, Bradford, 2006, High-Resolution Mapping of the Inner Continental Shelf: Nahant to Gloucester, Massachusetts: Open-File Report 2005-1293, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.Online Links:
Ackerman, Seth D. , Butman, Bradford, Barnhardt, Walter A. , Danforth, William W. , and Crocker, James M. , 2006, High-Resolution Geologic Mapping of the Inner Continental Shelf: Boston Harbor and Approaches, Massachusetts: Open-File Report 2006-1008, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.Online Links:
Barnhardt, Walter A. , Andrews, Brian D. , Ackerman, Seth D. , Baldwin, Wayne E. , and Hein, Christopher J. , 2009, High-Resolution Geological Mapping of the Inner Continental Shelf: Cape Ann to Salisbury Beach, Massachusetts: Open-File Report 2007-1373, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.Online Links:
Navigation for survey 07003 used differential Global Positioning System (GPS). The recorded position of each node along the SEABOSS trackline is actually the position of the GPS antenna on the survey vessel, not the SEABOSS sampler. The SEABOSS was deployed approximately 5 meters astern of the GPS antenna off the ship's J-frame on the starboard side. No layback or offset was applied to the recorded position. In addition to the ±5 meter offset the SEABOSS may drift additionally away from the survey vessel when deployed to the seafloor. Based on the various sources for horizontal offsets, a conservative estimate the horizontal accuracy of the SEABOSS trackline is 20-30 meters.
Only the subset of SEABOSS sites occupied during the R/V Connecticut survey 07003 within the Duxbury to Hull survey area have been included in this spatial dataset. Seventy-seven stations were occupied within the study area between Duxbury and Hull. A total of 184 sampling sites were occupied during survey 07003. The SEABOSS video tracklines that are not included in this report are from sites south of Brant Rock, Massachusetts and will be published in a subsequent data release focused on Cape Cod Bay. The length of the trackline represents the distance along the drift that that bottom was in view on the video. It does not include video of the water column during deployment or retrieval.
Trackline data from all video transects in the Duxbury to Hull survey area are included in this shapefile. Gaps in sequential video station numbers may exist.
Are there legal restrictions on access or use of the data?
- 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 source of this information.
508-548-8700 x2315 (voice)
508-457-2310 (FAX)
sackerman@usgs.gov
Downloadable Data
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.
| Data format: | location of SEABOSS tracklines in format SHP (version ArcGIS 9.3) ESRI polyline shapefile Size: 0.06 Mb |
|---|---|
| Network links: |
<https://pubs.usgs.gov/of/2009/1072/GIS/shapefile/DH_SeabossTrackline.zip> |
| Media you can order: |
DVD-ROM
(Density 4.75
Gbytes)
(format UDF)
|
These data are available as a shapefile in Environmental Systems Research Institute (ESRI) format. To utilize these data, the user must have software capable of viewing ESRI shapefiles. The shapefile is also distributed in compressed format as one WinZip (ver. 9.0) file. To utilize these data, the user must be able to uncompress the WinZip file.
508-548-8700 x2315 (voice)
508-457-2310 (FAX)
sackerman@usgs.gov
