Description

Significant progress in our understanding of the Earth's structure and functioning is dependent on new and original observations. However, these observations cannot be interpreted in a quantitative way without tools to model them, and developing adequate modelling methods is also a prerequisite for progress. Seismological raw data in the 21st century are mostly three-component broadband recordings, and require advanced numerical tools to be modelled, especially if lateral variations in the model are accounted for in addition to the radial stratification of the Earth. Considerable progress has been made concerning modelling of elastic waves in laterally heterogeneous structures in the last decades, taking advantage of the development of computer power. The number of articles related to new developments of diverse methods is enormous and it can be very difficult for newcomers to get an overview of the different methods available, and to be able to find which method is most appropriate for his or her applications. This book aims at giving introductions and basic reviews of the modelling methods for elastic waves in laterally heterogeneous structures which are most commonly used in contemporary seismology, or may have great potential for the future.

Readership

earth scientists, geophysicists, academic and institute libraries

Table of Contents

Preface (V.Maupin, R.S. Wu). 1. Seismic ray method: recent developments (V. Cerveny. L. Klimes, I. Psencik). 2. Introduction to mode coupling methods for surface waves (V. Maupin). 3. Boundary integral equations and boundary elements methods in elastodynamics (M. Bouchon, F. Sanchez-Sesma). 4. Generation and propagation of seismic SH waves in multilayered media with irregular interfaces (X.F. Chen). 5. One-way and one-return approximations (de Wolf approximation) for fast elastic wave modelling in complex media (R.S. Wu, X.B. Xie, X.Y. Wu). 6. Simulation of high-frequency wave propagation in complex crustal waveguides using generalized screen propagators (R.S. Wu, X.Y. Wu, X.B. Xie). 7. Spectral-element analysis in seismology (E. Chaljub, D. Komatitsch, et al.). 8. The finite-difference time-domain method for modeling of seismic wave propagation (P. Moczo, J. Robertson, L. Eisner). 9. A Lattice Boltzmann approach to acoustic-wave propagation (L. Huang). 10. Synthesis of seismogram envelopes in heterogeneous media (H. Sato, M. Fehler).

Details

No. of pages:
626
Language:
English
Copyright:
© 2007
Published:
Imprint:
Academic Press
Print ISBN:
9780120188505
Electronic ISBN:
9780080466354