USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1975-015-FA

Other ID: none

Status: Completed

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

Funding Program(s):

Location: southern slope of Georges Bank, United States, North America, North Atlantic;

Principal Investigator(s): Bradford Butman

Affiliate Investigator(s):

Information Specialist(s):

Data Type(s): Time Series: Mooring (physical oceanography)

Scientific Purpose/Goals: The cruise objective was to recover a single mooring on the southern slope of Georges Bank and redeploy 2 moorings at the same site.


Start Date: 1975-08-19

Start Port/Location: South Portland, ME

End Date: 1975-08-22

End Port/Location: South Portland, ME

Equipment Used: Bottom tripod

Information to be Derived: Time series data;

Summary of Activity and Data Gathered: The surface element of the U-shaped mooring had been found to be missing in June, which required that ground line grappling be the primary recovery method. Arriving on station, we proceeded to make several passes over the mooring with grappling gear. The dragging operation proved unsuccessful and the decision was made to re-evaluate the mooring design prior to redeployment. Ship track: 410 nm (228 km); Moorings recovered: 0; Moorings deployed: 0.

Staff: Bradford Butman

Affiliate Staff:
J. Vermersch (MIT); R. Limeburner (U. Mass/WHOI); T. Magas (EG&G


Location Map:


photo of Spar


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Bottom tripod --- Mooring (physical oceanography)
1975-015-FA-OM-001 ( Georges Bank Sediment mooring data)