Chapter 13 Modelling Seismic Wave Propagation for Geophysical Imaging

Chapter 13 Modelling Seismic Wave Propagation for Geophysical Imaging

The Earth is an heterogeneous complex media from the mineral composition scale (10−6m) to the global scale ( 106m). The reconstruction of its structure is a quite challenging problem because sampling methodologies are mainly indirect as potential methods (Günther et al., 2006; Rücker et al., 2006)...

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Bibliographic Details
Main Author: Tago, J. (auth)
Other Authors: Cruz-Atienza, V. (auth), Chaljub, E. (auth), Brossier, R. (auth), Coutant, O. (auth), Garambois, S. (auth), Prieux, V. (auth), Operto, S. (auth), Mercerat, D. (auth), Virieux, J. (auth), Ribodetti, A. (auth)
Format: Book Chapter
Published: InTechOpen 2012
Subjects:
Science: general issues
seismic wave
geophysical imaging
Boundary value problem
Finite element method
Free surface
Frequency domain
Seismology
Time domain
Velocity
Online Access:Get Fullteks
DOAB: description of the publication
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Summary:The Earth is an heterogeneous complex media from the mineral composition scale (10−6m) to the global scale ( 106m). The reconstruction of its structure is a quite challenging problem because sampling methodologies are mainly indirect as potential methods (Günther et al., 2006; Rücker et al., 2006), diffusive methods (Cognon, 1971; Druskin & Knizhnerman, 1988; Goldman & Stover, 1983; Hohmann, 1988; Kuo & Cho, 1980; Oristaglio & Hohmann, 1984) or propagation methods (Alterman & Karal, 1968; Bolt & Smith, 1976; Dablain, 1986; Kelly et al., 1976; Levander, 1988; Marfurt, 1984; Virieux, 1986). Seismic waves belong to the last category. We shall concentrate in this chapter on the forward problem which will be at the heart of any inverse problem for imaging the Earth. The forward problem is dedicated to the estimation of seismic wavefields when one knows the medium properties while the inverse problem is devoted to the estimation of medium properties from recorded seismic wavefields.
ISBN:1400
Access:Open Access

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