Sound propagation loss prediction for 100 Hz receiver

Abstract

This paper reports an attempt to simplify for ease in field use the complex numerical model for sound propagation loss prediction developed by Dr. C.S. Clay, Captain P.M. Wolff, and Dr. P.R. Tatro (LCDR, USN). Due to time required for communications and computation, the present results of this model are not available for immediate use by the operator This computerized model was used to analyze propagation loss for temperature profiles with sea surface temperature varying between l0C and 25C and variation in mixed layer depth from the surface to 300 meters. From these data formulas and graphs were developed to predict convergence zone range, width, and intensity and the 100-decibel propagation loss range. These results are intended for operational use by field personnel.