7.3. Some Additional Topics of Interest in Shallow-Water Acoustics
In this last part of this chapter, we discuss some assorted topics that do not fit so easily under the sonar equation umbrella, but that give shallow water some of its distinct flavor physically and technically.
7.3.1. One- and Two-Layer Water Column Sound Speed Profiles in Shallow-Water Acoustics
Given modern CTDs, AUVs, and gliders, it is not so hard for experimenters in ocean acoustics to be able to construct very good range-dependent profiles of the temperature and salinity of the coastal ocean versus depth, and thus the range-dependent sound speed structure. There is still some issue of space–time aliasing of the finer-scale ocean features, but at large scales, the profiles ...
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