NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Analysis and geological interpretation of gravity data from GEOS-3 altimeterA number of detailed gravimetric geoids of portions of the world's oceans from marine gravity measurements were constructed. The geoids were constructed by computing 1 x 1 deg or 10 x 10 deg averages of free-air anomaly data and subtracting these values from currently used satellite derived Earth models. The resulting difference gravity anomalies are then integrated over a sphere using a simplified form of Stoke's equation to obtain a difference geoid. This difference geoid is added to the satellite derived model to obtain a 1 x 1 deg or 10 x 10 deg total gravimetric geoid. The geoid undulations are studied by comparison of the altimeter measurements with the morphology of the ocean floor. Utilizing a combination of altimetry data, gravity and seismic reflection data, geophysical models of the earth can be constructed.
Document ID
19790006485
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Talwani, M. (Lamont-Doherty Geological Inst. Palisades, NY, United States)
Watts, A. B. (Lamont-Doherty Geological Inst. Palisades, NY, United States)
Chapman, M. E. (Lamont-Doherty Geological Inst. Palisades, NY, United States)
Date Acquired
August 10, 2013
Publication Date
December 1, 1978
Subject Category
Geophysics
Report/Patent Number
NASA-CR-156849
Accession Number
79N14656
Funding Number(s)
CONTRACT_GRANT: NAS6-2519
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available