Record details

Title
    First-order P-wave ray synthetic seismograms in inhomogeneous, weakly anisotropic, layered media
Author
    Farra, V.
    Pšenčík, Ivan
Language
    anglicky
Publication type
    článek v odborném periodiku
Source title - serial
    Geophysical Journal International
Vol./nr.
    Roč. 198, č. 1
Pages
    s. 298-307
Year
    2014
Notes
    Projekt: GAP210/11/0117, GA ČR, CZ3cav_un_auth*0273502
    Rozsah: 10 s.
Subject category
    body waves
    seismic anisotropy
    wave propagation
Keyword
    Anisotropic
    First-order
    Inhomogeneous
    Layered
    Media
    P-wave
    Ray
    Seismograms
    Synthetic
    Weakly
Abstract (in english)
   The calculation of first-order P-wave ray synthetic seismograms based on first-order ray tracing (FORT) and dynamic ray tracing (FODRT) for P-waves propagating in inhomogeneous, weakly anisotropic media is extended from smooth to layered media. All the basic formulae necessary to calculate the P-wave FORT and FODRT quantities inside layers and to transform them at the points of reflection/transmission are given. The proposed formulae are applicable in subcritical as well as overcritical regions. The accuracy of the results is tested by comparing the approximate (FORT) results with the results obtained from a standard ray tracer for anisotropic media. The tests indicate that, except for critical regions, where the ray theory provides incorrect results anyway, the accuracy of FORT and FODRT in layered media is comparable with the accuracy in smooth media.
Contributor
    AV ČR Brno, Geofyzikální ústav
Contributor code
    AV ČR, GFÚ
Source format
    U
Import date
    23. 10. 2014