Articles | Volume 16, issue 24
Model evaluation paper
15 Dec 2023
Model evaluation paper |  | 15 Dec 2023

Calibration of absorbing boundary layers for geoacoustic wave modeling in pseudo-spectral time-domain methods

Carlos Spa, Otilio Rojas, and Josep de la Puente

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Cited articles

Bérenger, J.-P.: A perfectly matched layer for the absorption of electromagnetic waves, J. Comput. Phys., 114, 185–200, 1994. a, b
Bérenger, J.-P.: Three-Dimensional Perfectly Matched Layer for the Absorption of Electromagnetic Waves, J. Comput. Phys., 127, 363–379, 1996. a
Bérenger, J.-P.: A historical review of the absorbing boundary conditions for electromagnetics, Forum for Electromagnetic Research Methods and Application Technologies, 1, 1–28, 2015. a
Bodony, D.-J.: Analysis of sponge zones for computational fluid mechanics, J. Comput. Phys., 212, 681–702, 2006. a
Bording, R.-P.: Finite difference modeling-nearly optimal sponge boundary conditions, in: SEG Annual Meeting, Society of Exploration Geophysicists, (last access: 10 December 2023), 2004. a, b
Short summary
This paper develops a calibration methodology of all absorbing techniques typically used by Fourier pseudo-spectral time-domain (PSTD) methods for geoacoustic wave simulations. The main contributions of the paper are (a) an implementation and quantitative comparison of all absorbing techniques available for PSTD methods through a simple and robust numerical experiment, and (b) a validation of these absorbing techniques in several 3-D seismic scenarios with gradual heterogeneity complexities.