Other ID: WF 80-3
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Location: Georges Bank, United States, North America, North Atlantic,
Principal Investigator(s): David Twichell
Data Type(s): Sonar: Sidescan, Seismics: Sub Bottom Profiler, Location-Elevation: Navigation
Scientific Purpose/Goals: The WHITEFOOT 80-3 cruise was the second of three cruises to evaluate sand wave migration rates in a small area (about 1.5 x 1.5 km) on Georges Bank. During this cruise 2 transponders which were deployed on the WH 80-2 (FA 80015) cruise were enabled, and a third transponder was deployed. The 3 transponders were surveyed in to establish the navigation grid. Two sidescan-sonar reflectors were deployed to serve as reference markers. After establishing the navigation grid and deploying the sonar reflectors, a sidescan sonar and 3.5 kHz echo sounding survey was conducted. At the end of the survey all 3 transponders were shut off and left for the final survey in May 1981 (FA 81006).
Start Date: 1980-09-22
Start Port/Location: Woods Hole, MA
End Date: 1980-09-24
End Port/Location: Woods Hole, MA
Equipment Used: Klein 531 sidescan, ORE 140 transceiver/1036 transducer sub-bottom profiler, Northstar 6000 LORAN-C, ATNAV acoustic transponder
Information to be Derived:
Summary of Activity and Data Gathered: Sidescan sonar: 70 km; 3.5 kHz: 70 km.
Staff: David Twichell, John West