The challenge of computing the geoid in the nineties

Details The challenge of computing the geoid in the nineties The challenge of computing the geoid in the nineties

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993sgeo...14..339s&link_type=abstract

Surveys in Geophysics, Volume 14, Issue 4-5, pp. 339-371

Physics

Geophysics

Scientific paper

This paper deals with the basic definitions and the numerical techniques used nowaday in the estimation of the gradiometric geoid. After a first introductory paragraph, the so-called 3-steps remove/restore method is presented. The computation and the use of global models is analysed in Section 2; the computation of topographic corrections, with particular care to the residual terrain correction, is presented in Section 3; the central solution or estimation of the anomalous potential either by solving a Molodensky's problem, or by applying the collocation theory, is examined in Section 4; the restore step is finally presented in Section 5.

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