USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1981-006-FA

Other ID: WF 81-1

Status: Completed

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

Funding Program(s):

Location: Georges Bank, United States, North America, North Atlantic,

Principal Investigator(s): David Twichell

Affiliate Investigator(s):

Information Specialist(s):

Data Type(s): Sonar: Sidescan, Seismics: Sub Bottom Profiler, Location-Elevation: Navigation

Scientific Purpose/Goals: Evaluate sand wave migration rates in a small area on Georges Bank.


Start Date: 1981-04-01

Start Port/Location: Woods Hole, MA

End Date: 1981-04-06

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: Sea floor map;

Summary of Activity and Data Gathered: WHITEFOOT 81-1 cruise was the final of 3 cruises conducted to evaluate sandwave migration rates in a small area (about 1.5 x 2.0 km) on Georges Bank. During this cruise two of the three transponders deployed on WF 80-2 (FA 80015) and WF 80-3 (FA 80026) were enabled. The third could not be enabled, so one transponder was deployed. The three transponders were surveyed in to establish the navigation grid, then the survey was conducted using sidescan sonar and 3.5 kHz echo sounding techniques. After completing the survey, the three transponders were recovered and the transponder which could not be enabled was lost. In addition to the detailed survey, some widely spaced lines were run to obtain an understanding of the setting of the study area. 3.5 kHz data: 199 km; Sidescan data: 199 km.

Staff: David Twichell

Affiliate Staff:
Andrew Eliason - Eliason Data Services
Greg Miller - Eliason Data Services


Location Map:


photo of Whitefoot


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Klein 531 sidescan --- Sidescan
1981-006-FA-SO-002 ( analog tape of seismic data)
1981-006-FA-SO-001 ( microfilm of )
ORE 140 transceiver/1036 transducer sub-bottom profiler --- Sub Bottom Profiler
1981-006-FA-SE-004 ( analog tape of seismic data)
1981-006-FA-SE-003 ( analog tape of seismic data)
1981-006-FA-SE-002 ( microfilm of )
1981-006-FA-SE-001 ( Collection of paper record displays of seismic data( 3.5K) for lines )
Northstar 6000 LORAN-C --- Navigation
1981-006-FA-LN-001 ( Navigation trackline plot for field activity 81006)
1981-006-FA-LN-002-01 ( Navigation data recovered from 9 track tape)
ATNAV acoustic transponder --- Navigation