Interference tomography of the synoptic inhomogeneities and ocean bottom

A. Yu. KAZAROVA; L. Ya. LYUBAVIN; A.G. NECHAEV

doi:doi:10.1051/jp4:19945242

Numéro		J. Phys. IV France Volume 04, Numéro C5, Mai 1994 3ème Congrés français d'acoustique 3rd French conference on acoustics


Page(s)		C5-1099 - C5-1103
DOI		https://doi.org/10.1051/jp4:19945242

3ème Congrés français d'acoustique
3rd French conference on acoustics

J. Phys. IV France 04 (1994) C5-1099-C5-1103
DOI: 10.1051/jp4:19945242

Interference tomography of the synoptic inhomogeneities and ocean bottom

A. Yu. KAZAROVA, L. Ya. LYUBAVIN and A.G. NECHAEV

Institute of Applied Physics, Russian Academy of Sciences, 46 Ulyanov St., 603600 Nizhny Novgorod, Russia

Abstract
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.