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Summary Information for Field Activity 2010-003-FA

Area of Operations: Buzzards Bay, Massachusetts, United States, North America, North Atlantic

Dates: September 09, 2010 to September 17, 2010

Chief scientist: Dave Twichell

Objectives: Sea floor mapping of coastal areas along the Elizabeth Islands.

Type of Activity: Sea floor mapping;

Information to be derived: Bathymetric maps

Summary: The nearshore areas along both the Vineyard Sound and Buzzards Bay sides of the Elizabeth Islands extending from Quicks Hole to the western end of Sow and Pigs Reef were surveyed using swath bathymetric, sidescan sonar, and seismic reflection techniques. Equipment problems and weather limited the survey to six days. The data were all of high quality, although sub-bottom penetration on the seismic data was limited for much of the area because of extensive fields of boulders.

Contact: Elizabeth Pendleton (

Related Links:

Platform Info:

Publications resulting from these data

Pendleton, E.A., Twichell, D.C., Foster, D.S., Worley, C.R., Irwin, B., and Danforth, W.W.,2012, High-resolution geophysical data from the inner continental shelf: Elizabeth Islands, Massachusetts: U.S. Geological Survey Open-File Report 2011-1184. (Also available at

Data Types and Locations:


This grid represents approximately 24.5 square km of bathymetric data that were collected in 2010. These data are used to define the sea-floor morphology surrounding the nearshore of the western Elizabeth Islands, Massachusetts. This interpolated grid provides a complete seafloor surface for data visualization and presentation.


Data is in the Data Library - contact Data Manager (

PNG images of each seismic profile were generated in order to incorporate images of the seismic data into Geographic Information System (GIS) projects and data archives utilizing HTML. These PNG images represent approximately 253 km of chirp seismic data collected with the EdgeTech 424 in Sept. 2010. This format is universal and yields an easily browseable pictorial view of the seismic profiles. Each profile image is hotlinked to its corresponding trackline navigation contained within a polyline shapefile ('2010-003-FA_Chirp424_tracklines.shp'), and even 500 shot-point locations are available in a point shapefile ('2010-003-FA_Chirp424_500sht.shp). All of these data are available in an ESRI ArcMap project, as well as separate .zip archives on this digital data DVD archive ().


Data is in the Data Library - contact Data Manager (

his GeoTIFF (Tagged Image File Format) image contains sidescan sonar data that were collected in Sept. 2010. These data are used to define the seafloor geology surrounding the western Elizabeth Islands, Massachusetts


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