Collect gravity, magnetics and bathymetric data off the west coast of Africa on a 5 nmi grid with an internal consistency of +/- 3 milligals.
Location
Ghana, Togo, Benin, Nigeria, Cameroon, Gabon, Equatorial Guinea, Africa, North Atlantic, South Atlantic;
Summary
Departed Abidjan, Ivory Coast on 24 Sep. On 25 Sep., resurveyed 2 Ghana lines due to high cross checks. On 26 Sep., surveyed 1 Togo line and 1 Benin line and started Nigeria survey. On 5 Oct., completed Nigeria and began Cameroon survey. On 8 Oct., completed Cameroon survey and began Gabon survey. 18 Oct., transit to Douala. 20 Oct., arrived Douala, Cameroon for crew change and provisions. The 810 Sonar/MK 29 Gyro system worked flawlessly as did gravimeters and all gravity processing equipment and software. Many lines had to be cut short on the eastern end due to shoals, or shifted due to restricted oil platform areas.
Robert Bowles - consultant; Larry Awosika - Nigerian Institute of Oceanography & Marine Research; Lt. A.G. Inusa - Nigerian Navy Hydrography Office; Tomah Jabez Nhabay - Geological Survey, Sierra Leone
