USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1979-035-FA

Other ID: OC 77

Status: Completed

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

Funding Program(s):

Location: Georges Bank, Mid-Atlantic Shelf, United States, North America, North Atlantic;

Principal Investigator(s): Bradford Butman

Affiliate Investigator(s):

Information Specialist(s):

Data Type(s): Environmental Data: CTD, Imagery: Photo, Location-Elevation: Navigation, Sampling: Biology, Sampling: Geology, Sonar: Sidescan, Time Series: Mooring (physical oceanography)

Scientific Purpose/Goals: Deploy 5 tripods and current moorings; recover 3 tripods and current moorings; repair/replace surface buoys; conduct cross-shelf CTD sections; obtain bottom grab samples; and conduct a bathymetric and sidescan survey in the Great South Channel.

Vehicle(s):

Start Date: 1979-12-13

Start Port/Location: Woods Hole, MA

End Date: 1979-12-20

End Port/Location: Woods Hole, MA

Equipment Used: Plessey CTD, Klein 531 sidescan, Smith-MacIntyre grab, Mooring tripod, Camera- deep sea, Northstar 6000 LORAN-C, Bottom tripod

Information to be Derived: Time series data; Suspended sediment concentrations; Bathymetric maps;

Summary of Activity and Data Gathered: The 2 tripods and 1 current mooring which we were unable to recover on OCEANUS were recovered in January 1980 with the Tug WHITEFOOT (FA 80001). The release receiver batteries were defective and we could not communicate with the releases. 1 VACM was lost. Because of extensive grappling/search operations we did not have time to recover 1 buoy with current meter at Station B. Christmas and ship deadlines precluded another few hours of shiptime. We elected to deploy the new equipment and recover the instrument later. On return to site in January, the buoy was missing. Deployed tripods: 5 (#183, 184, 185, 186, and 187 all recovered FA 80009 OCEANUS 81 May 23 - Jun. 1, 1980). Deployed current meters: 4 (#188, no recovery information, fishing boat netted buoys and camera Mar. 25, 1980; 189, 190, and 192 all recovered FA 80009 OCEANUS 81 May 23 - Jun. 1, 1980). Recovered tripods: 2 (#176 and 179). Recovered current meters: 2 (#181 and 182). CTDs: 10; XBTs: 49; Surface salinity samples: 57.

Staff: Janet B. Burke, Bradford Butman, Mary E. Hastings, Jeff Kerns, John Larson, Marlene Noble, Carol M. Parmenter, Richard Rendigs, William J. Strahle

Affiliate Staff:
Nick Lefteriou; Andrew Eliason - Eliason Data Services

Notes: Original Center People field contained: Brad Butman - Ch. Sci.; Janet Burke, Jeffrey Kerns, John Larson, Nick Lefteriou, Marlene Noble, Carol Parmenter, Richard Rendigs, Polly Shoukimas, William Strahle.
Project = Sediment Dynamics, Sediment Dynamics

Location Map:

Platform(s):

photo of Oceanus
Oceanus

Publications

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Plessey CTD --- CTD
Klein 531 sidescan --- Sidescan
1979-035-FA-SO-001 ( Collection of paper record displays of sidescan sonar data for lines )
Smith-MacIntyre grab --- Biology
Geology
Mooring tripod --- Ground Truthing
Camera- deep sea --- Photo
1979-035-FA-PH-001 ( film collection of TRIPOD 187; 19791219-19800525)
Northstar 6000 LORAN-C --- Navigation
1979-035-FA-LN-001-01 ( Navigation data)
Bottom tripod --- Mooring (physical oceanography)
1979-035-FA-OM-001 ( Georges Bank Sediment mooring data)