Počet záznamů: 1
Gaussian beams in inhomogeneous anisotropic layered structures
- 1.
SYSNO ASEP 0337233 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Gaussian beams in inhomogeneous anisotropic layered structures Tvůrce(i) Červený, V. (CZ)
Pšenčík, Ivan (GFU-E) ORCID, RIDZdroj.dok. Geophysical Journal International - ISSN 0956-540X
Roč. 180, č. 2 (2010), s. 798-812Poč.str. 15 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova body waves ; seismic anisotropy ; theoretical seismology ; wave propagation Vědní obor RIV DC - Seismologie, vulkanologie a struktura Země CEP GA205/08/0332 GA ČR - Grantová agentura ČR CEZ AV0Z30120515 - GFU-E (2005-2011) UT WOS 000273666400024 DOI 10.1111/j.1365-246X.2009.04442.x Anotace Gaussian beams, approximate solutions of elastodynamic equation concentrated close to rays of high-frequency seismic body waves, propagating in inhomogeneous anisotropic layered structures, are studied. They have Gaussian amplitude distribution along any straightline profile intersecting the ray. At any point of the ray, the Gaussian distribution of amplitudes is controlled by the 2 × 2 complex-valued symmetric matrix M of the second derivatives of the traveltime field with respect to ray-centred coordinates. Matrix M can be simply determined along the ray if the ray propagator matrix is known and if the value of M is specified at a selected point of the ray. The ray propagator matrix can be calculated along the ray by solving the dynamic ray tracing system twice: once for the real-valued initial plane-wave conditions and once for the real-valued initial point-source conditions. Pracoviště Geofyzikální ústav Kontakt Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028 Rok sběru 2010
Počet záznamů: 1