Ocean Acoustics
V.A. Akulichev, V.A. Bulanov, P.N. Popov
FRACTAL DIMENSION OF VOLUME SOUND SCATTERING AT LOW FREQUENCIES IN THE OCEAN
Institute of Marine Technology Problems, Far Eastern Branch
Russian Academy of Sciences, 5a, Sukhanov St., Vladivostok, 690600, RUSSIA;
Tel.: (4232) 228370; Fax: (4232) 226451
Email: akulichev@marine.febras.ru, bulanov@marine.febras.ru
Experimental results, obtained at low frequencies for the coefficient of a sound scattering in a subtropical part of Pacific ocean are discussed. Received in experiment the spectrum with a power parameter n=1,4 testifies that the frequency dependence does not appropriate neither of early known models of sound scattering, but it is easy explained by the assumption of a fractal structure of inhomogeneities in ocean with dimension D=1,4. The latter in accuracy corresponds to situations, considered by Lysanov and Lyamshev, and confirms the new concept fractal offered by them for the explanation of scattering and attenuation of a sound in ocean at low frequencies.

