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USGS Coastal and 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):

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 Port/Location: South Portland, ME

End Port/Location: South Portland, ME

Start Date: 1975-08-19

End Date: 1975-08-22

Equipment Used: Bottom platform

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



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

North: 40.89596313 South: 40.67322991 West: -67.57110605 East: -67.22292399


photo of Spar



Documents associated with this activity

Title Survey Equipment Description
Cruise report (document not focused on specific equipment) Chief Scientist's cruise report describing ship movement, personnel, equipment and the reason for the unsuccessful mooring recover, track map of transit and location of mooring.

Data Acquired

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

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