Gravity measurements at sea, 1948 And 1949

Abstract
The long‐range program of gravity measurements at sea has been continued on board United States Navy submarines. Improvements in the Vening Meinesz apparatus have included improved pendulum lifts, self‐aligning gimbal bearings, electric motor drive of photographic paper, and 100 eclipse markings per second on the pendulum records. During 1948 and 1949, gravity observations were made as follows: 180 on U.S.S. Argonaut in the Bahama Island area, 118 on U.S.S. Medregal along the east coast of the United States between Key West and Cape Hatter, 260 on U.S.S. Capitaine on a route from San Diego, California, to Brisbane, Australia, to Japan, to Hawaii, 103 on U.S.S. Bergall between Hawaii, Australia, and Guam, 72 on U.S S. Chopper along the west coast of Mexico, and 142 on U.S.S. Baya along the west coast of Canada, south coast of Alaska, across the Aleutian Islands chain, and in the Bering and Chukchee Seas.

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