Abstract
The propagation of a pressure transient in a model consisting of a surface layer of liquid overlying a thick (essentially semi‐infinite) bottom layer of liquid has been investigated experimentally. Attention is restricted to the behavior in and near the surface layer at a range large compared with the depth of the surface layer. The results have been analyzed to determine the group velocity curve, variation of pressure amplitude with source and receiver depth, and the rate of amplitude decay with range for the maximum envelope amplitude. The results are found to be in general agreement with the “Theory of Propagation of Explosive Sound in Shallow Water,” by C. L. Pekeris. In addition, the rate of decay with range for the first peak amplitude was measured and found to be r−2 within experimental error.
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