Temporal and spacial variability of sound propagation in the ocean

Abstract

The purpose of. this study is to investigate the influence of non-environmental and small scale environmental acoustic factors on the variation of transmission loss within areas of the ocean which exhibit homogeniety of large scale environmental factors. The method employed was to identify the influencing and non-influencing factors, pool over the non-influencing factors if they existed, and investigate the nature and magnitude of the effect of the influencing factors on the variation of transmission loss. The results generally indicated that source/receiver depth, the mixed layer, geographic location, and transmitting range and frequency significantly influenced the variation of transmission loss.