Using acoustic scattering (high frequency) to predict acoustic scattering (low frequency).

Abstract

Models of low-frequency reverberation from tenuous bubble clouds have made assumptions about the geometry of the clouds. Some of those assumptions are replaced with properties remotely measured using high-frequency scattering. This approach is applied to the measurements made during the CST-7 experiment, which is the first experiment including both high- and low-frequency measurements. Also discussed is the use of ocean information obtained from the high-frequency scattering in addition to the geometry of the clouds to help infer low-frequency reverberation characteristics. [Work supported by the Office of Naval Research.]