Accession Number : AD0837030

Title :   MARINE GRAVITY DISCREPANCIES IN THE SOLOMON ISLANDS.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : I'Anson, Lawrence Warren, Jr

Report Date : JUN 1968

Pagination or Media Count : 98

Abstract : In 1964 a reconnaissance marine gravity survey was conducted in the Solomon Islands by the Hawaii Institute of Geophysics, University of Hawaii. In 1965, a more detailed survey was conducted in the same area by the same investigators. In one particular area of the survey, gravity anomalies obtained in 1964 differed from those obtained in 1965 by as much as 168 milligals. In other areas where differences did occur, these were on the order of 25 milligals. This thesis reports the investigation carried out to determine the reason or reasons for the large discrepancies. Navigational positions were checked; the bathymetry obtained in 1964 was compared with other bathymetry available; the Eotvos correction was recalculated with the corrected station position and better resolution; and the gravity records were examined to determine if large vertical accelerations of the measuring platform could be the cause of the discrepancies. Some errors were discovered, but the large differences could not be eliminated. (Author)

Descriptors :   (*MARINE GEOPHYSICS, PACIFIC OCEAN ISLANDS), GRAVITY, ANOMALIES, BATHYTHERMOGRAPH DATA, ACCELERATION, MEASUREMENT, ERRORS, HYDROGRAPHIC SURVEYING, UNIVERSITIES, THESES, HAWAII.

Subject Categories : Physical and Dynamic Oceanography
      Geodesy

Distribution Statement : APPROVED FOR PUBLIC RELEASE