Abstract
Analytic expressions for the mean acoustic field propagated through a stratified ocean with a distribution of random volume and surface heterogeneities that may be large compared to the acoustic wavelength, presented in this session by Ratilal and Makris, are used to study the effect of internal waves, bubbles, and sub-bottom anomalies as well as seafloor and seasurface roughness on acoustic propagation in both shallow and deep water. Oceanographic and geologic data are used to probabilistically characterize the acoustic properties of the anomalies in terms of their size, shape, sound speed and densities. The expected scattering function for the anomalies are then computed as a function of depth. These are used to determine attenuation and dispersion coefficients as well as the forward propagated field as a function of range and depth.
Published Version
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