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Detailed gravity anomalies from GEOS-3 satellite altimetry dataA technique for deriving mean gravity anomalies from dense altimetry data was developed. A combination of both deterministic and statistical techniques was used. The basic mathematical model was based on the Stokes' equation which describes the analytical relationship between mean gravity anomalies and geoid undulations at a point; this undulation is a linear function of the altimetry data at that point. The overdetermined problem resulting from the excessive altimetry data available was solved using Least-Squares principles. These principles enable the simultaneous estimation of the associated standard deviations reflecting the internal consistency based on the accuracy estimates provided for the altimetry data as well as for the terrestrial anomaly data. Several test computations were made of the anomalies and their accuracy estimates using GOES-3 data.
Document ID
19790004460
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Gopalapillai, G. S. (Battelle Columbus Labs. OH, United States)
Mourad, A. G. (Battelle Columbus Labs. OH, United States)
Date Acquired
September 3, 2013
Publication Date
October 1, 1978
Subject Category
Geophysics
Report/Patent Number
NASA-CR-156844
Accession Number
79N12631
Funding Number(s)
CONTRACT_GRANT: NAS6-2801
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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