The purpose of this report is to consolidate well established theory and the data available to data and make such generalizations as the facts warrant. The factors in water conditions affecting sound propagation are discussed in detail and the applications of the principles are illustrated by examples and experimental data.n It is concluded that water conditions frequently set definite limitations on the use of underwater sound gear, but also that a proper knowledge and understanding of the conditions frequently permits taking tactical advantage of the limitations. Great care must be used not to make too broad generalizations from limited data, as conditions may vary greatly and rapidly with time or place.
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