Propagation of SH-waves in a layered medium |
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| Authors: | Joseph Ha |
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| Institution: | Research School of Earth Sciences, Australian National University, PO Box 4, Canberra, ACT2601, Australia |
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| Abstract: | Summary. A set of recurrence relations similar to that of Kennett suitable for SH -wave generation in an ( n + l)-layered half-space is presented. The recurrence relations contain no growing terms, thus providing a stable and efficient algorithm for computing complete SH synthetic seismograms. The complete expansion of these recurrence relations gives the explicit form of the transfer function for SH -waves. The transfer function for a point source in layer s of the stratification is a series of 2 n terms in the denominator and a series of 2 n?s +1 terms in the numerator. The result of Wang from ray summation is shown to be a special case of our general result. Numerical comparison of the algorithm of this paper with the propagator matrix method is also made. |
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