A multi-pole perfectly matched layer (PML) absorber for finite-difference time-domain (FDTD) seismic modeling in 2D

The multi-pole PML (MPML) is tested on models that simulate seismic waves traveling through the subsurface. Using a recursive integration technique a stretching function consisting of the sum of multiple stretching functions is implemented in the velocity-stress finite difference time domain wave equations. The MPML is implemented in both the...