Regularization parameter selection in the 3D gravity inversion of the basement relief using GCV: A parallel approach

摘要

In this study, we present a computationally efficient automatic method for the optimal selection of the regularization parameter in the 3D inversion of gravity data. We use a linearized inversion method to estimate the depth of a 3D sedimentary basin in which the density contrast varies parabolically with the depth. The sedimentary basin is discretized into rectangular juxtaposed prisms with thicknesses that represent the depths from the surface to the interface and are the parameters to be estimated in the inversion process from the gravity anomaly.