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O Conceito de Profundidade Efetiva Para a Propagação Acústica em Águas Rasas
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 12th International Congress of the Brazilian Geophysical Society, Aug 2011, cp-264-00037
Abstract
In this work we deal with the problem of the sound propagation in shallow ocean waters. More precisely, we show that the classical ocean acoustic sound propagation models, namely, the Ideal and the Pekeris wave guide models have many similar features. This analysis can be developed if we take in to account the fundamental effect of the evanescent waves propagation into the seabed. The present analogy between the two models is based on the concept of the ocean effective depth related to excitation of the<br>resonant sound propagation modes in these media.