Lamb's problem and comments on the paper ‘on leaking modes’ byUsha Gupta |
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| Authors: | C H Chapman |
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| Institution: | (1) Institute of Earth and Planetary Physics, Department of Physics, University of Alberta, Edmonton, Alberta, Canada |
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| Abstract: | Summary In a recent paper,Gupta 5]2) re-examined the significance of leaking modes in Lamb's problem (Lamb 7]). In this paper, we present a brief review of the exact Cagniard-de Hoop solution to this problem, and use these results to examine the question of the leaking mode in more detail. The leaking mode may either cause a separate arrival,P, or influence the shape of other arrivals e.g.SpS. We have attempted to clarify and extend previous results and correct misconceptions which have appeared elsewhere and, therefore, most of this discussion is tutorial in nature. |
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