Seismic waves in laterally inhomogeneous media [Libro electrónico] / edited by Ivan Pšenčík, Vlastislav Červený

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1. Coupled anisotropic shear-wave ray tracing in situations where associated slowness sheets are almost tangent.. 2. Numerical algorithm of the coupling ray theory in weakly anisotropic media.. 3. Perturbation of the polarization vectors in the isotropic ray theory.. 4. Synthetic seismograms and wide-angle seismic attributes from the Gaussian beam and reflectivity methods for models with interfaces and velocity gradients.. 5. Lyapunov exponents for 2-d ray tracing without interfaces.. 6. Sobolev scalar products in the construction of velocity models: application to model hess and to seg/eage salt model.. 7. Smoothing the marmousi model.. 8. Converted ps-wave reflection coefficients in weakly anisotropic media.. 9. Three-dimensional travel-time calculation based on Fermat's principle.. 10. True amplitude migration weights from travel times.. 11. Model-independent travel-time attributes for 2-d, finite-offset multicoverage reflections.. 12. Statistical travel-time tomography in terms of stacking velocity.. 13. Applications of directional wavefield decomposition, phase space, and path integral methods to seismic wave propagation and inversion.. 14. Parabolic equation techniques for seismic waves.. 15. A full waveform test of the southern California velocity model by the reciprocity method.. 16. Constant q and a fractal, stratified earth.. 17. Time-domain modeling of constant-q seismic waves using fractional derivatives.. 18. Numerical computation of nonlinear inelastic waves in soil.. 19. Propagation of pulses in viscoelastic media.. 20. Scattering of seismic waves by cracks with the boundary integral method.. 21. Application of the medium covariance functions to travel-time tomography.. 22. Correlation functions of random media.. 23. Estimating the correlation function of a self-affine random medium.. 24. P-wave tomography in inhomogeneous orthorhombic media..

25. Local determination of weak anisotropy parameters from qP-wave slowness and particle motion measurements.. Bibliography

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This special issue contains contributions presented at the international workshop Seismic Waves in Laterally Inhomogeneous Media V, which was held at the Castle of Zahrádky, Czech Republic, June 5 - 9, 2000. The workshop, which was attended by about 60 seismologists from 16 countries, was devoted mainly to the current state of theoretical and computational means of study of seismic wave propagation in complex structures. The special issue begins with papers dealing with the study and the application of the ray methods. Problems such as coupling of quasi-shear waves or smoothing of models for effective ray computations are dealt with. Applications of the ray methods in seismic exploration are presented. Further, directional wavefield decomposition, phase space, path integral and parabolic equation methods are discussed. Attention is also devoted to attenuation and scattering problems, and to seismic inversion problems. eng

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