The possibility and accuracy of the calculation of the first-arrival travel times and the ray-theory travel times is demonstrated on two INRIA bench-mark versions of the 2-D Marmousi model. The two models differ considerably in the degree of global smoothness.
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Klimes, L.: Travel times in the INRIA Marmousi models. In: Seismic Waves in Complex 3-D Structures, Report 4, pp. 53-60, Dep. Geophys., Charles Univ., Prague, 1996.
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