Alternate Leg ID: 81-3
Area of Operations: continental shelf between Portsmouth, New Hampshire, and Newburyport, Massachusetts, Gulf of Maine, United States, North America, North Atlantic
Dates: June 19, 1981 to June 30, 1981
Objectives: Map glacial and post-glacial sediments and bedrock.
Type of Activity: Sea floor mapping
Information to be derived: Sea floor map
Sidescan sonar data
Summary: Uniboom data: 480 km; Sidescan data: 325 km; Magnetics: 150 km; 3.5 kHz data: <100 km. Magnetometer and 3.5 kHz data are of very poor quality because of instrument malfunction.
USGS Project Number: NE CSTL
Contact: Francis S. Birch ()