Empirical Green's functions are obtained for 31 paths in a highly dynamic coastal ocean by cross-correlation of ambient and shipping noise recorded in the Shallow Water 2006 experiment on a horizontal line array and a single hydrophone about 3600 m from the array. Using time warping, group speeds of three low-order normal modes are passively measured in the 10–110 Hz frequency band and inverted for geoacoustic parameters of the seabed. It is demonstrated that, despite very strong sound speed variations caused by nonlinear internal waves, noise interferometry can be successfully used to acoustically characterize the seafloor on a continental shelf.

中文翻译：

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在存在强烈的水柱变化的情况下，大西洋中部的被动地声反演。

经验格林函数是通过在水平线阵列和距阵列约3600 m的单个水听器的浅水2006实验中记录的环境噪声和运输噪声的互相关获得的，在高度动态的沿海海洋中的31条路径上获得。使用时间扭曲，可以在10–110 Hz频带内被动测量三种低阶法向模式的群速度，并反转海底的地声参数。结果表明，尽管非线性内部波引起了非常强的声速变化，但噪声干涉测量法仍可成功地用于声学表征大陆架上的海底。