Other ID: STRL S6-87-AFR
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Location: Liberia, Cote d'Ivoire, Ghana, Africa, North Atlantic;
Principal Investigator(s): James E. Dodd
Affiliate Investigator(s): Robert Rowland - Reston
Data Type(s): Electro-Magnetic: Gravity, Sonar: Single Beam, Electro-Magnetic: Magnetics, Location-Elevation: Navigation
Scientific Purpose/Goals: Collect gravity, magnetics and bathymetric data on continental shelf of Liberia, Cote d'Ivoire and Ghana to a 3 nm grid with internal consistency +/-3 mgals.
Start Date: 1987-08-26
Start Port/Location: Freetown, Sierra Leone
End Date: 1987-09-20
End Port/Location: Abidjan, Cote dIvoire
Equipment Used: LaCoste-Romberg gravimeter G-179, 12 kHz, Geometrics G-856 magnetometer, GE 810 Correlation sonar, Gyro compass, GPS (wh), Magnavox satellite positioning system
Information to be Derived:
Summary of Activity and Data Gathered: Departed Freetown 24 Aug. 87; 26 Aug.- 2 Sep., surveyed 973 nm in Liberia; 2-9 Sep., surveyed 1030 nm in Cote d'Ivoire; 9-10 Sep., Abidjan port day; 10-20 Sep., surveyed 1431 nm in Ghana. Returned Abidjan 10 Sep. 87.
Staff: James E. Dodd, Sarah Griscom, Robert Rowland
Notes: Original Center People field contained: Jim Dodd; Bob Rowland - party chief; Sarah Griscom; Linda Sheetz; Val Zadnik.
Folger, D.W., Irwin, Barry J., McCullough, James R., Rowland, Robert W., and Polloni, Christopher F., 1990, Map showing free-air gravity anomalies off the southern coast of west-central Africa; Liberia to Ghana: , download PDF.