An Efficient Technique for the Computation of the Gravimetric Quantities from Geopotential Earth Models
This paper presents an efficient computer technique for computing the gravimetric quantities from high degree global geopotential earth models. The developed technique is designed to compute the gravimetric quantities for an equally spaced grid in the longitude direction. It can be used to compute the gravimetric quantities either for a local region or for the whole globe. Computational timing tests have been carried out and the results prove that the developed technique saves significant computer time.
KeywordsGravity Disturbance Develop Technique Orthometric Height Associate Legendre Function Gravimetric Geoid
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- Colombo, O. (1981) Numerical Methods for Harmonic Analysis on the Sphere, Department of Geodetic Science, The Ohio State University, Columbus, Ohio, 310.Google Scholar
- Heiskanen, W.A. and Moritz, H. (1967) Physical Geodesy, Freeman, San Francisco.Google Scholar
- Rapp, R.H. (1982) A Fortran Program for the Computation of Gravimetric Quantities From High Degree Spherical Harmonic Expansions, Department of Geodetic Science, The Ohio State University, Columbus, Ohio, 334.Google Scholar
- Rizos, C. (1979) An Efficient Computer Technique for the Evaluation of Geopoten-tial From Spherical Harmonic Models, Aust. J. Geodesy, Photogrammetry and Surveying, 31, 161–169.Google Scholar
- Torge, W. (1980) Geodesy, Walter de Gruyter, Berlin, New York.Google Scholar
- Tscherning, C.C., Knudsen, P. and Forsberg, R. (1994) Description of the GRAVSOFT Package, Geophysical Institute, University of Copenhagen, Technical Report. Google Scholar
- Tscherning, C.C., Rapp R.H. and Goad, C. (1983) A Comparison of Methods for Computing Gravimetric Quantities From High Degree Spherical Harmonic Expansions. Manuscripta geodaetica, 8, 249–272.Google Scholar