The Spherical Cap Harmonic Analysis Modeling Method Based on Disturbing Gravity Gradients

doi:10.11947/j.AGCS.2017.20160412

Abstract

Abstract:

It is deduced that the non-singular computational formulae of the disturbing gravity gradients based on spherical cap harmonic analysis theory.On the basis of the Tikhonov regularization method,the spherical cap harmonic model of local gravity field is calculated using GOCE satellite real surveying data.It is shown that the short wavelength information of local gravity field can be recovered from the disturbing gravity gradient data using spherical cap harmonic analysis method,and the difference with the GO_CONS_GCF_2_DIR_R5 model is at ±0.3×10^-5 m/s².

Key words: spherical cap harmonic analysis, disturbing gravity, gravity gradients, Tikhonov regulariza-tion method

CLC Number:

P223

WANG Yi, JIANG Xiaodian. The Spherical Cap Harmonic Analysis Modeling Method Based on Disturbing Gravity Gradients[J]. Acta Geodaetica et Cartographica Sinica, 2017, 46(11): 1802-1811.

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