2012 | OriginalPaper | Buchkapitel
New Computational Schemes
verfasst von : K. Mallick, A. Vasanthi, K. K. Sharma
Erschienen in: Bouguer Gravity Regional and Residual Separation: Application to Geology and Environment
Verlag: Springer Netherlands
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Precise separation of gravity regional and residual components is the key step for the modelling of geological structures. Over the past six decades a large number of techniques, both in frequency- and space-domain, have been developed to compute the gravity regional anomaly. As there are discrepancies in all the existing techniques, a new space-domain technique based on the concept and properties of the element shape functions used in finite element approach (FEA) is recently developed (Mallick and Sharma, 1997, 1999) and applied to a variety of research problems (Sharma et al., 1999; Mallick et al., 1999; Mallick and Vasanthi, 2001; Vasanthi and Mallick, 2001; Kannan and Mallick, 2003; Vasanthi and Mallick, 2005a; Vasanthi and Mallick, 2005b; Vasanthi and Mallick, 2006). The technique is robust, well-performing and not site-specific. This technique overcomes most of the drawbacks encountered in the existing analytical methods.