Ray-matrix synthetic seismograms are compared with finite-difference synthetic seismograms in a simple 1-D model, consisting of a low-velocity layer covering a homogeneous halfspace. The numerical results demonstrate the efficiency of the combination of the ray-methods with the matrix methods.
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Klimes, L.: Comparison of ray-matrix and finite-difference methods in a simple 1-D model. In: Seismic Waves in Complex 3-D Structures, Report 7, pp. 169-180, Dep. Geophys., Charles Univ., Prague, 1998.