摘要: Shallow Water 2006 experiment was conducted in a region off the New Jersey coast where nonlinear internal wave activity is known to occur and this resulting in range-dependent sound speed profiles in the water column. In continuat... 展开 Shallow Water 2006 experiment was conducted in a region off the New Jersey coast where nonlinear internal wave activity is known to occur and this resulting in range-dependent sound speed profiles in the water column. In continuation of the work on estimation of range-dependent sediment compressional wave speed profiles, the ability to use data similar to that collected during the shallow water experiment to determine the range-dependent sound speed profiles in the water column due to the presence of internal waves is explored. It is shown that range-dependent sound speed profiles in the water column can be obtained assuming that the sediment characteristics are known. During 2011 a series of experiments were conducted off the coast of New Jersey. The primary objective of this experiment was to evaluate the possibility of determining the sediment acoustic properties by the use of air launched sonobuoys such as those used ASW operations. It is shown that such a system can be used to extract the sediment acoustic properties. The methods can be adopted to characterize the range dependent environment namely the water column and the sediment. 收起