A Sensitivity Study of Underwater Sound Propagation Loss and Bottom Loss.

摘要

This report describes the techniques used and results obtained in a model study of the sensitivity of propagation loss to variations in bottom loss and bottom loss to variations in the geoacoustical models of the subbottom. The propagation loss sensitivity study was carried out, using both ray and wave propagation models, for a variety of source-receiver depth combinations and with various sound speed profile types. The bottom loss sensitivity study was carried out using a model developed by Applied Research Laboratories (ARL), The University of Texas at Austin, and is concentrated on addressing questions of hidden depths, substrate effects, and sound speed and density profile effects. (Author)