Articles | Volume 9, issue 6
Solid Earth, 9, 1277–1298, 2018
https://doi.org/10.5194/se-9-1277-2018

Special issue: Advances in seismic imaging across the scales

Solid Earth, 9, 1277–1298, 2018
https://doi.org/10.5194/se-9-1277-2018

Research article 07 Nov 2018

Research article | 07 Nov 2018

Second-order scalar wave field modeling with a first-order perfectly matched layer

Xiaoyu Zhang et al.

Related subject area

Subject area: Core and mantle structure and dynamics | Editorial team: Seismics, seismology, geoelectrics, and electromagnetics | Discipline: Geophysics
The relative contributions of scattering and viscoelasticity to the attenuation of S waves in Earth's mantle
Susini deSilva and Vernon F. Cormier
Solid Earth, 11, 161–171, https://doi.org/10.5194/se-11-161-2020,https://doi.org/10.5194/se-11-161-2020, 2020
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Cited articles

Alford, R. M., Kelly, K. R., and Boore, D.: Accuracy of finite-difference modeling of the acoustic wave equation, Geophysics, 39, 834–842, 1974.
Berenger, J. P.: A Perfect Matched Layer for the Absorption of Electromagnetic Waves, J. Comput. Phys., 114, 185–200, 1994.
Blanch, J. O. and Robertsson, J. O. A.: A modified Lax-Wendroff correction for wave propagation in media described by Zener elements, Geophys. J. Roy. Astr. S., 131, 381–386, 2010.
Cerjan, C., Kosloff, D., Kosloff, R., and Reshef, M.: A nonreflecting boundary condition for discrete acoustic and elastic wave equations, Geophysics, 50, 705–708, 1985.
Cerveny, V.: Seismic ray theory, Cambridge University Press, 2001.
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Short summary
We propose a new boundary matched algorithm which can effectively combine the traditional first-order perfectly matched layer algorithm into the conventional-grid finite-difference scheme in a second-order system. This novel boundary method takes the advantages of the conventional-grid scheme and perfectly matched layer boundary conditions, making a good compromise of accuracy, excellent absorption effect, and high computational efficiency. Our method is also easy to implement.