Podrobnosti záznamu

    Comparison of the FORT approximation of the coupling ray theory with the Fourier pseudospectral method
    Farra, V.
    Pšenčík, Ivan
    Tessmer, E.
Typ dokumentu
    část monografie (kapitola)
Zdrojový dokument - monografie
    Seismic waves in complex 3-D structures. Report 21
    S. 129-165
    Projekt: GA205/08/0332, GA ČR3cav_un_auth*0240426
    Projekt: GAP210/11/0117, GA ČR, CZ3cav_un_auth*0273502
    Rozsah: 37 s.9209
    Výzkumný záměr: CEZ:AV0Z30120515
Předmětová kategorie
    coupling ray theory
    first-order ray tracing
    Fourier pseudospectral method
Klíčové slovo
Abstrakt (anglicky)
   The standard ray theory for inhomogeneous anisotropic media does not work properly or even fails when applied to S-wave propagation in inhomogeneous weakly anisotropic media or in the vicinity of shear-wave singularities. In both cases, the two shear waves propagate with similar phase velocities. The coupling ray theory was proposed to avoid this problem. In it, amplitudes of the two S waves are computed by solving two coupled, frequency-dependent differential equations along a common S-wave ray. In this paper, we test the recently developed approximation of coupling ray theory based on the common S-wave rays obtained by first-order ray tracing (FORT).
    AV ČR Brno, Geofyzikální ústav
Kód přispěvatele
    AV ČR, GFÚ
Zdrojový formát
Datum importu
    9. 12. 2013