The passive mode tomography of the ocean using data from short vertical arrays bent by the ocean currents

Andrey Shurup, Sergey Sergeev, Valentin Burov
2008 Journal of the Acoustical Society of America  
Acoustics 08 Paris 5281 The possible realization of passive ocean tomography based on the widely discussed relation between the Green's function and ambient noise cross-coherence is discussed. The problem is considered in the mode representation of acoustic field in adiabatic approximation. It is shown that the use of the vertical arrays with vector receivers allows a decrease in the accumulation time to one or several hours, depending on the conditions of experiment. The mode structure of
more » ... tic field is determined from the cross-correlation matrix of the noise field received by the hydrophones of short vertical arrays bent by the ocean currents and covering only the part of the sound channel. The proposed algorithm allows a compensation of antenna declination from the vertical profile and takes into account of the finite length of antenna aperture, that ordinary takes place in ocean experiments.
doi:10.1121/1.2934862 fatcat:3gt6f3zdffc2biq5ug5qnvazny