In GIS INTEGRO, a program using the discrete Fourier transform is created to solve the 3D inverse problem of gravimetry. The result of its work is a 3D distribution of the effective density. The program allows to use an extended parametrization of the form: fα,β(r,x) = f(r,zα)|z|–β. By changing the parameters α — “depth multiplier” — and β — “exponent at z”— one can obtain various equivalent distributions of effective densities and choose the most appropriate one based on a priori information. The experience of solving the 3D inverse problem by this method with different set values of these parameters allowed us to recommend the optimal values. As a criterion for choosing a solution from a variety of possible solutions, it is proposed to use a comparison of them with the data of seismic studies of the DDS and the CCP.

Nadezhda N. Pimanova Candidate of Technical Sciences, Leading Researcher, Division of Geoinformatics, FSBI «All-Russian Research Geological Oil Institute» 8 Varshavskoye sh., Moscow, 117105, Russia. E-mail:nadja@geosys.ru.

Viktor A. SpiridonovCandidate of Technical Sciences, Head of Sector of computer technologies for 3D modelling of geological and geophysical objects, Division of Geoinformatics, FSBI «All-Russian Research Geological Oil Institute»8 Varshavskoye sh., Moscow, 117105, Russia E-mail: victor@geosys.ru 
ORCID ID: 0000-0002-9421-555X

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