Collect gravity, magnetics and bathymetric data around Senegal, Gambia, Guinea-Bissau, Guinea, and Sierra Leone to a 3 nm grid with internal consistency +/-3 mgals.
Location
Senegal, Gambia, Guinea-Bissau, Guinea, Sierra Leone, Africa, North Atlantic;
Summary
Departed Dakar at 1920 on 22 Jul. 1987. The ship proceeded south to survops area. After completing the two remaining lines in Senegal, all runable lines in the waters off The Gambia, Guinea-Bissau, Guinea and Sierra Leone were completed. Most of the onshore lines run north of Sierra Leone were shortened due to shoals on the eastern ends. Gravimeter S-26 lost its 200 Hz power supply on 2 Aug. 87. The unit was swapped with the unit in meter S-41, which was then shut down. S-26 remained online for the remainder of the cruise and showed no evidence of data tears. Arrived in Freetown, Sierra Leone at 1230 on 20 Aug. 1987.
Comments
Original Center People field contained: Barry Irwin - party chief, Robin Bouse, Sarah Griscom, Carol Renaud.
Project = Defense Mapping Agency Gravity, Defense Mapping Agency Gravity
