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Summary for Field Activity Number 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

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

Information to be derived: Grain size analysis
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 was 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.

USGS Project Number: 2921-AWW - Project Description

Contact: Jane Denny (jdenny@usgs.gov)

Map for Area of Operations :

Map of field activity boundary.

Platform Info:
photo of RAFAEL
RAFAEL

The following materials for this field activity are available in the Information Archives:

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