Efficient hybrid numerical modeling of the seismic wavefield in the presence of solid-fluid boundaries.

ABSTRACT: Applying full-waveform methods to image small-scale structures of geophysical interest buried within the Earth requires the computation of the seismic wavefield over large distances compared to the target wavelengths. This represents a considerable computational cost when using state-of-the-art numerical integration of the equations of motion in three-dimensional earth models. "Box Tomography" is a hybrid method that breaks up the wavefield computation into three parts, only one of which needs to be iterated for each model update, significantly saving computational time. To deploy this method in remote regions containing a fluid-solid boundary, one needs to construct artificial sources that confine the seismic wavefield within a small region that straddles this boundary. The difficulty ari

SUBMITTER: Lyu C 

PROVIDER: S-EPMC11836316 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature