Accession Number : AD0757460

Title :   Wave Propagation in Random Media.

Descriptive Note : Technical rept.,

Corporate Author : SACLANT ASW RESEARCH CENTRE LA SPEZIA (ITALY)

Personal Author(s) : Fortuin,Leonard ; Arcovito,G. ; Baekelandt,L. ; Gastmans,R. ; Grenness,O.

Report Date : 01 JAN 1973

Pagination or Media Count : 280

Abstract : Sound waves, propagating through the ocean, may be accompanied by surface, bottom and volume reverberation. One of the causes for the volume scattering is the thermal microstructure of the medium. Its effect on wave propagation is discussed in this report, from a theoretical point of view. Sound frequencies from the diffraction domain up into the band where geometrical optics are valid, have been considered. The medium is assumed to be unbounded, homogeneous, stationary and anisotropic, with weak fluctuations in the index of refraction. (Author Modified Abstract)

Descriptors :   (*UNDERWATER SOUND, THERMAL ANALYSIS), REVERBERATION, DIFFERENTIAL EQUATIONS, STATISTICAL PROCESSES, DISTORTION, DIFFRACTION, REFLECTION, REFLECTION, OCEAN BOTTOM, THERMAL PROPERTIES, SCATTERING, MICROSTRUCTURE, CORRELATION TECHNIQUES, THEOREMS, ITALY

Subject Categories : Physical and Dynamic Oceanography
      Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE