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Shear-wave coupling in inhomogeneous weakly anisotropic media
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SYSNO ASEP 0335415 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Shear-wave coupling in inhomogeneous weakly anisotropic media Author(s) Pšenčík, Ivan (GFU-E) ORCID, RID
Farra, V. (FR)Source Title Expanded abstracts of the11th International Congress of the Brazilian Geophysical Society and EXPOGEF 2009. - Salvador : SBGf, 2009 Pages s. 1-4 Number of pages 4 s. Publication form CD ROM - CD ROM Action [International Congress of the Brazilian Geophysical Society and EXPOGEF 2009 /11./ Event date 24.08.2009-28.08.2009 VEvent location Salvador Country BR - Brazil Event type WRD Language eng - English Country BR - Brazil Keywords seismic anisotropy ; shear-wave coupling ; seismic rays Subject RIV DC - Siesmology, Volcanology, Earth Structure R&D Projects GA205/08/0332 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z30120515 - GFU-E (2005-2011) Annotation We present an approximate procedure for computing coupled S waves in inhomogeneous weakly anisotropic media. The procedure can be used to compute S waves propagating in smooth inhomogeneous isotropic or anisotropic media. In anisotropic media, it can describe behaviour of coupled as well as decoupled S waves. Basic part of the procedure is an approximate computation of the common S-wave ray, a trajectory, along which properties of both S waves propagating in anisotropic media are computed. For computation of the common ray and of the approximate geometrical spreading along it, we use the first-order ray tracing and dynamic ray tracing concept, developed for computations of P waves in inhomogeneous weakly anisotropic media. Workplace Geophysical Institute Contact Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028 Year of Publishing 2010
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