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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 1994-023-FA

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Other ID: 94-18

Status: Completed

Organization(s): USGS, Woods Hole Coastal and Marine Science Center

Funding Program(s):

Principal Investigator(s): David Twichell

Affiliate Investigator(s): Neal W. Driscoll - Lamont-Doherty Earth Observatory

Information Specialist(s):

Data Type(s): Sampling: Biology, Sampling: Geology, Imagery: Photo, Location-Elevation: Navigation, Sonar: Sidescan, Seismics: Sub Bottom Profiler, Sonar: Single Beam

Scientific Purpose/Goals: Re-survey a sidescan sonar survey from 1991 to document changes inflicted by Hurricane Bob and 2 major winter storms; build a sonar mosaic; obtain camera tows, box cores and grab samples.

Vehicle(s):

Start Port/Location: Block Island, RI

End Port/Location: Block Island, RI

Start Date: 1994-07-29

End Date: 1994-08-08

Equipment Used: Box corer, Camera- deep sea, DGPS, Klein 531 sidescan, Q-MIPS sidescan sonar system, ORE 140 transceiver/1036 transducer sub-bottom profiler, ODOM 200 kHz depth recorder, Van Veen grab sampler

Information to be Derived: Sea floor map;

Summary of Activity and Data Gathered: Sidescan sonar: 124 km sq; 3.5 kHz sub-bottom: 884 km; Digital bathymetry: 884 km (Contact USGS); Camera tows: 12; 35 mm slides; Box cores: 23; Van Veen grabs: 211.

Staff: Barry Irwin, David Nichols, David Twichell, Eric A. Schmuck

Affiliate Staff:
Elizabeth Elliot - Wesleyan; Parker Hackett - U. VT; Barbara Hecker - Hecker Environmental Consultants; John Ladd - Hudson Highlands Museum; Earl Young - WHOI

Notes:

Location:

Block Island Sound, Rhode Island, United States, North America, North Atlantic;

Boundaries
North: 41.3 South: 41.1 West: -71.95 East: -71.65

Platform(s):

photo of Cape Henlopen
Cape Henlopen

Publications

Portals/Viewers

Documents associated with this activity

Title Survey Equipment Description
Cruise report (document not focused on specific equipment) Chief Scientist's report including personnel, purpose, equipment, tabulated information, cruise summary, line start and end information, camera tow information, sample locations, trackmap.
Cruise report (document not focused on specific equipment) Chief Scientist's report (text format) including personnel, purpose, equipment, tabulated information, cruise summary, line start and end information, camera tow information, sample locations, trackmap.
Q-Mips log Klein 531 sidescan Q-MIPS log containing files names, start and ends times for lines, acquisition notes.
Sidescan log Klein 531 sidescan Sidescan-sonar log containing file names, start and ends times for lines, equipment configuration, ship movement, acquisition notes, geological observations.

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Box corer --- Biology
Geology
Camera- deep sea --- Photo
DGPS --- Navigation
1994-023-FA-LN-001 (Navigation trackline plot for field activity 94023)
Klein 531 sidescan --- Sidescan
1994-023-FA-SO-001 (Digital tape(s) of SSS/3.5K L1-9, SSS/3.5K L10-23, SSS/3.5K L23-37, SSS/3.5K L38-51, SSS/3.5K L52-56, SSS/3.5K L57-58, )
Q-MIPS sidescan sonar system --- Sidescan
ORE 140 transceiver/1036 transducer sub-bottom profiler --- Sub Bottom Profiler
ODOM 200 kHz depth recorder --- Single Beam
Van Veen grab sampler --- Geology

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