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Summary Information for Field Activity 2009-018-FA

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

Dates: October 01, 2009 to October 30, 2009

Chief scientist: Walter Barnhardt

   Bill Schwab

Objectives: 1) Map sea floor geology in shallow water (0-10 m depths) at very high-resolution by using swath bathymetry, acoustic backscatter, and sub-bottom profiling. 2) Test and calibrate sea floor mapping equipment (resolution and repeatability of swath bathymetric mapping and real-time kinematic navigation).

Type of Activity: Sea floor mapping;Sea floor mapping

Information to be derived: Sea floor map
Bathymetric maps

Summary: We mapped the sea floor in Red Brook Harbor in depths from ~2 meters to 10 meters using our SEA SwathPlus 234 kHz interferometric sonar, EdgeTech 424 chirp seismic profiler, Knudsen 3.5 kHz 3200 seismic profiler, and kinematic navigation techniques. Fully overlapping swath bathymetric data was collected, as well as concurrent seismic reflection profiles. After the geophysical data were collected, we deployed our SEABOSS system and occupied 50 stations, collecting 47 sediment samples, still photos, and video. We also tested out the Benthos C3D system for a day, occupying 5 lines that were previously surveyed with our SwathPlus system for comparison.

Contact: Bill Danforth (

Related Links:

Platform Info:

Publications resulting from these data

Turecek, A., Danforth,W. , and Barnhardt, W,, High-Resolution Geophysical Data Collected Within Red Brook Harbor, Buzzards Bay, Massachusetts, in 2009: U.S. Geological Survey Open-File Report 2010-1091

Data Types and Locations:


Deck photos of field operations



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