Authors: Michal Šprlák Josef Sebera Miloš Val’ko Pavel Novák
Publish Date: 2013/12/31
Volume: 88, Issue: 2, Pages: 179-197
Abstract
New integral formulas for upward/downward continuation of gravitational gradients onto gravitational gradients are derived in this article They provide more options for continuation of gravitational gradient combinations and extend available mathematical apparatus formulated for this purpose up to now The starting point represents the analytical solution of the spherical gradiometric boundary value problem in the spatial domain Applying corresponding differential operators on the analytical solution of the spherical gradiometric boundary value problem a total of 18 integral formulas are provided Spatial and spectral forms of isotropic kernels are given and their behaviour for parameters of a GOCElike satellite is investigated Correctness of the new integral formulas and the isotropic kernels is tested in a closedloop simulation The derived integral formulas and the isotropic kernels form a theoretical basis for validation purposes and geophysical applications of satellite gradiometric data as provided currently by the GOCE mission They also extend the wellknown Meissl schemeThis work is supported in the framework of ESA’s project GOCEGDC AO/16367/10/NL/AF M Šprlák and J Sebera were supported by the project EXLIZ CZ107/2300/300013 which is cofinanced by the European Social Fund and the state budget of the Czech Republic P Novák was supported by the project 209/12/1929 of the Czech Science Foundation Constructive comments of the three anonymous reviewers are gratefully acknowledged Thanks are extended to the editorinchief Prof Roland Klees and the responsible editor Prof Wolfgang Keller for handling our manuscript
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