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Approximation of harmonic covariance functions on the sphere by non-harmonic locally supported functions
Abstract. Three methods to construct positive definite functions with compact support for the approximation of general geophysical harmonic covariance functions are presented. The theoretical background is given and simulations carried out, for three types of covariance functions associated with the determination of the anomalous gravity potential from gravity anomalies. The results are compared with those of the finite covariance function of Sansò and Schuh (1987).
Approximation of harmonic covariance functions on the sphere by non-harmonic locally supported functions
Abstract. Three methods to construct positive definite functions with compact support for the approximation of general geophysical harmonic covariance functions are presented. The theoretical background is given and simulations carried out, for three types of covariance functions associated with the determination of the anomalous gravity potential from gravity anomalies. The results are compared with those of the finite covariance function of Sansò and Schuh (1987).
Approximation of harmonic covariance functions on the sphere by non-harmonic locally supported functions
Moreaux, G. (author) / Tscherning, C. C. (author) / Sanso, F. (author)
Journal of Geodesy ; 73
1999
Article (Journal)
English
BKL:
38.73
Geodäsie
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