Other ID: WF 81-1
Status: Completed
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Funding Program(s):
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.
Vehicle(s):
Start Port/Location: Woods Hole, MA
End Port/Location: Woods Hole, MA
Start Date: 1981-04-01
End Date: 1981-04-06
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
Notes:
Location:
Georges Bank, United States, North America, North Atlantic,
Boundaries | |||
---|---|---|---|
North: 41.34794849 | South: 40.93910697 | West: -68.20131173 | East: -67.81736798 |
Platform(s):
Whitefoot |
Twichell, D.C., 1983, Sand-wave movement on Little Georges Bank: U.S. Geological Survey Open-File Report 83-746, https://doi.org/10.3133/ofr83746.
Title | Survey Equipment | Description |
---|---|---|
Cruise report | (document not focused on specific equipment) | Chief Scientist's cruise report of personnel, data collection, equipment notes, ship movement, and trackmaps. |
Survey Equipment | Survey Info | Data 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-002 (microfilm of ) 1981-006-FA-SE-004 (analog tape of seismic data) 1981-006-FA-SE-001 ( Collection of paper record displays of seismic data( 3.5K) for lines ) 1981-006-FA-SE-003 (analog tape of seismic data) |
Northstar 6000 LORAN-C | --- | Navigation | 1981-006-FA-LN-002-01 (Navigation data recovered from 9 track tape) 1981-006-FA-LN-001 (Navigation trackline plot for field activity 81006) 1981-006-FA-LN-002 (Digital tape(s) of NV, NV-NSTAR, NV-NSTAR-FINAL, NV-ATNAV, ) |
ATNAV acoustic transponder | --- | Navigation |