Record details

Title
    Gaussian beams in inhomogeneous anisotropic layered structures using dynamic ray tracing in Cartesian coordinates
Author
    Červený, V.
    Pšenčík, Ivan
Language
    anglicky
Publication type
    část monografie (kapitola)
Source title - monograph
    Seismic waves in complex 3-D structures. Report 20
Pages
    S. 127-168
Notes
    Projekt: GA205/08/0332, GA ČR3cav_un_auth*0240426
    Rozsah: 42 s.9264
    Výzkumný záměr: CEZ:AV0Z30120515
Subject category
    Cartesian coordinates
    Gaussian beams
    seismic anisotropy
Keyword
    Anisotropic
    Beams
    Cartesian
    Coordinates
    Dynamic
    Gaussian
    Inhomogeneous
    Layered
    Ray
    Structures
    Tracing
    Using
Abstract (in english)
   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 straight line profile intersecting the ray. At any point of the ray, the Gan of amplitudes is controlled by the 2 x 2 complex valued symmetric matrix of the second derivatives of the travel-time field with respect to wavefront orthonormal coordinates y1, y2, local Cartesian coordinates in plane tangential to the wavefront with its origin at the central ray.
Contributor
    AV ČR Brno, Geofyzikální ústav
Contributor code
    AV ČR, GFÚ
Source format
    U
Import date
    9. 12. 2013