Grid travel-time tracing: accuracy comparison of several methods

Ludek Klimes

Summary

Accuracy of the grid travel-time tracing methods proposed by Vidale (1988), Van Trier & Symes (1991), Pusey & Vidale (1991), Podvin & Lecomte (1991), Klimes & Kvasnicka (1994), and Klimes (1996) for the calculation of the first-arrival travel times is compared in simple constant velocity gradient models.

Keywords

Seismic waves, first-arrival travel times, ray tracing, accuracy.

Whole paper

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Revised version

This paper, with exception of the results of program NET (Fig.2), has been appended to
Klimes, L.: Grid travel-time tracing: second-order method for the first arrivals in smooth media. In: Seismic Waves in Complex 3-D Structures, Report 3, pp. 157-174, Dep. Geophys., Charles Univ., Prague, 1995.
The resulting revised paper is
Klimes, L.: Grid travel-time tracing: second-order method for the first arrivals in smooth media. PAGEOPH, 148 (1996), 539-563.

In: Seismic Waves in Complex 3-D Structures, Report 4, pp. 143-150, Dep. Geophys., Charles Univ., Prague, 1996.
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