Three-dimensional interpolation and suppression of near-surface heterogeneity influence in the gravimetric processing

Application of analytic sourcewise approximation on gravity data processing is suggested. 3D- interpolation algorithm for building digital model of gravitational field, taking into account differences between plane and altitude position initial and final points is considered. Repression technique of influence of density heterogeneities, located in shallow overburden is produced. The model and practical examples are given.