Solving the Seismic Inverse Problem Using an Ensemble of Models: A Case Study of Inversion of Receiver Functions

摘要

This paper proposes a new method for determining the seismic parameters of the subsurface below a seismic station using the waveforms of converted waves. The subsurface below the seismic station is represented by a plane-layered model. In contrast to other methods, the new approach does not involve determining all the elastic parameters of each of the layers. Instead, it is proposed to use a combination of parameters related directly to the object under study. In our case, we estimate the depth dependencies of the seismic velocity and density. The quality of solutions is assessed based on the rms distance between the observed waveforms and the seismograms derived from the averaged depth dependences of the seismic parameters. The approach proposed is applicable to a wide range of inverse problems in geophysics.