Statistical analysis of sound transmission results obtained on the New Jersey continental shelf

Abstract

Experiments have been conducted near the site of AMCOR Borehole 6010 on the New Jersey Shelf to evaluate propagation predictability in sandy shallow-water environments. The influence of a nonlinear frequency dependence of the sediment volume attenuation in the uppermost sediment layer at this location is examined. Previously it was determined that a frequency power-law exponent of 1.5 was required for the best modeling of experimental results over the band 50–1000Hz. The approach here references the attenuation to an accepted value at 1kHz and makes extensive comparisons between measurements and calculations, to determine a power-law exponent of 1.85±0.15.