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

The paper is available in PDF (209 kB).

Final 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 final revised paper is
Klimes, L. (1996): Grid travel-time tracing: second-order method for the first arrivals in smooth media. Pure and appl. Geophys., 148, 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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