Since the end of the Cold War, the US Navy has had an increasing interest in continental shelves and slopes as operational areas. To work in such areas requires a good understanding of ocean acoustics, coastal physical oceanography, and, in the modern era, autonomous underwater vehicle (AUV) operations. Each area presents challenges for both the scientist and the Navy. In physical oceanography, a complex interplay among winds, rivers, tides, and local bathymetry drives a nonstationary, shelf-break front and the nonlinear internal wave (NLIW) field.
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