510 pages, 248 b/w illustrations, 1 table
Originally published in the series: Modern Acoustics,Signal Processing, by American Institute of Physics, Springer New York, 1997
Seismic waves – generated both by natural earthquakes and by man-made sources – have produced an enormous amount of information about the Earth's interior. In classical seismology, the Earth is modeled as a sequence of uniform horizontal layers (or spherical shells) having different elastic properties and one determines these properties from travel times and dispersion of seismic waves. The Earth, however, is not made of horizontally uniform layers, and classic seismic methods can take large-scale inhomogeneities into account. Smaller-scale irregularities, on the other hand, require other methods.
Observations of continuous wave trains that follow classic direct S waves, known as coda waves, have shown that there are heterogeneities of random size scattered randomly throughout the layers of the classic seismic model. Seismic Wave Propagation and Scattering in the Heterogeneous Earth focuses on recent developments in the area of seismic wave propagation and scattering through the randomly heterogeneous structure of the Earth, with emphasis on the lithosphere. The presentation combines information from many sources to present a coherent introduction to the theory of scattering in acoustic and elastic materials and includes analyses of observations using the theoretical methods developed.
The second edition especially includes new observational facts such as the spatial variation of medium inhomogeneities and the temporal change in scattering characteristics and recent theoretical developments in the envelope synthesis in random media for the last ten years. Mathematics is thoroughly rewritten for improving the readability. Written for advanced undergraduates or beginning graduate students of geophysics or planetary sciences, Seismic Wave Propagation and Scattering in the Heterogeneous Earth should also be of interest to civil engineers, seismologists, acoustical engineers, and others interested in wave propagation through inhomogeneous elastic media.
- Heterogeneity in the Lithosphere
- Phenomenological Approaches to Seismogram Envelopes in short-periods
- Born approximation for Wave Scattering in Random Media
- Attenuation of High-Frequency Seismic Waves
- Synthesis of Three-Component Seismogram Envelopes for Earthquakes Using Scattering Amplitudes from the Born Approximation
- Envelope Synthesis Based on the Radiative Transfer Theory: Multiple Scattering Models
- Parabolic approximation and Envelope Synthesis based on the Markov Approximation.
Summary and Epilogue
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