3rd French conference on acoustics
J. Phys. IV France 04 (1994) C5-1099-C5-1103
Interference tomography of the synoptic inhomogeneities and ocean bottomA. Yu. KAZAROVA, L. Ya. LYUBAVIN and A.G. NECHAEV
Institute of Applied Physics, Russian Academy of Sciences, 46 Ulyanov St., 603600 Nizhny Novgorod, Russia
The interference algorithm of the acoustic tomography of the ocean is discussed. In this method the synoptic inhomogeneities of the sound velocity field are restored by the perturbations in the intermode phase differences. The intermode phase difference, in its turn, is determined by the measured space distribution of the intensity (the interference structure) of the acoustic field. The interference method is also applied for determining the vertical profiles of sound speed, density and attenuation coefficient in the bottom. The possibility of using this method is numerically analysed for natural ocean conditions.
© EDP Sciences 1994