Electronic Resource
Oxford, UK
:
Blackwell Publishing Ltd
Geophysical journal international
119 (1994), S. 0
ISSN:
1365-246X
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Geosciences
Notes:
The concept of complex rays plays an important role in wave-propagation modelling. In this study we describe an efficient method for complex ray tracing. Our objective is to facilitate generalization of this concept to wave-propagation studies in general inhomogeneous media. By solving rigorously the complex eikonal equation arising from medium anelasticity, we strive to provide an accurate description of the wave-attenuation process in a realistic earth structure. to enhance practical utility of our method, we have developed a ray-perturbation scheme which keeps the computation to a minimum. A further advantage of our approach is that it can be used to extend the technique of complex source point to general inhomogeneous media. the said extension overcomes the singularity problem encountered by asymptotic ray theory near a caustic and is capable of modelling evanescent waves.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-246X.1994.tb00927.x
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