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Numerical method for the computation of first-arrival time of seismic waves with general anisotropy

Abstract : We present a numerical method for computing the first arrival time of seismic waves. The scheme can tackle three dimensional media with elastic properties defined by a fully anisotropic Hooke tensor. Our numerical method proceeds in a single pass over the domain, similar to the Fast Marching method, and achieves third order accuracy in smooth test cases, with quasi-linear computation time. We also validate our solver by comparing it with the solution to the elastic wave equation on a medium with general anisotropy.
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https://hal.archives-ouvertes.fr/hal-03404543
Contributor : Ludovic Métivier Connect in order to contact the contributor
Submitted on : Wednesday, October 27, 2021 - 1:00:41 PM
Last modification on : Tuesday, November 2, 2021 - 4:33:58 PM

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François Desquilbet, Ludovic Métivier, Jean-Marie Mirebeau. Numerical method for the computation of first-arrival time of seismic waves with general anisotropy. First International Meeting for Applied Geoscience & Energy, Sep 2021, Denver, United States. pp.2435-2439, ⟨10.1190/segam2021-3583321.1⟩. ⟨hal-03404543⟩

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