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Wavepaths

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Published:
January 01, 2017

Abstract

Wavepaths: The high-frequency approximation of ray tracing assumes that seismic energy propagates from point A to point B exclusively along a skinny ray, sometimes referred to as the Fermat ray. In contrast, wave-equation tomography assumes that the energy is mostly transported along a “fat” ray, in which the slowness model within the fat ray can influence the traveltime of the first arrival at position B. Woodward (1989, 1992) refers to this fat ray as a wavepath, which is similar to the Fresnel volume discussed by Kravtsov and Orlov (1980). The transmitted fat ray in a homogeneous medium is centered about the Fermat ray.

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Society of Exploration Geophysicists

Seismic Inversion

Gerard T. Schuster
Gerard T. Schuster
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Society of Exploration Geophysicists
Volume
20
ISBN electronic:
9781560803423
Publication date:
January 01, 2017

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