Počet záznamů: 1

Shear-wave traveltimes in inhomogeneous weakly anisotropic media

  1. 1.
    0335842 - GFU-E 2010 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
    Iversen, E. - Farra, V. - Pšenčík, Ivan
    Shear-wave traveltimes in inhomogeneous weakly anisotropic media.
    Expanded abstracts of the 79th Annual Meeting of the Society of Exploration Geophysicists. Tulsa: SEG, 2009, s. 3486-3490.
    [Annual Meeting of the Society of Exploration Geophysicists /79./. Houston (US), 25.10.2009-30.10.2009]
    Grant CEP: GA ČR GA205/08/0332
    Výzkumný záměr: CEZ:AV0Z30120515
    Klíčová slova: seismic anisotropy * shear-wave coupling * traveltimes
    Kód oboru RIV: DC - Seismologie, vulkanologie a struktura Země

    A useful byproduct of studying shear-wave coupling in inhomogeneous weakly anisotropic media are formulae for approximate evaluation of traveltimes of separate S waves. The traveltimes can be obtained from perturbations computed along so-called first-order S-wave common rays. The perturbations consist of two parts. The first represents correction of the traveltime computed along the first-order common ray. The other controls separation of S waves. Both parts can be simply evaluated by quadratures along the common ray. The formulae have applications in migration and traveltime tomography.
    Trvalý link: http://hdl.handle.net/11104/0180201