Accession Number : AD0757110

Title :   Calculations of Reflected Acoustic Flux Patterns for Sound Rays Originating at the Ocean Surface and Reflected from Underwater Objects.

Descriptive Note : Final rept. 12 Jun-31 Dec 72,

Corporate Author : GEORGIA UNIV ATHENS DEPT OF PHYSICS AND ASTRONOMY

Personal Author(s) : Burkhard,Donald G. ; Shealy,David L.

Report Date : 28 FEB 1973

Pagination or Media Count : 64

Abstract : A formula is derived for the acoustic intensity reflected by an object of arbitrary shape embedded in a medium of variable index of refraction. Formulas are applicable in the ray acoustics limit. As specific applications, contours of equal intensity are calculated over a plane parallel to the ocean surface and over a plane perpendicular to the ocean surface when a plane wave of sound is reflected from ellipsoidal objects at various depths and distances from the receiver planes. (Author)

Descriptors :   (*UNDERWATER SOUND, REFLECTION), REFRACTION, SOUND TRANSMISSION, MATHEMATICAL MODELS, PARTIAL DIFFERENTIAL EQUATIONS, WAVE FUNCTIONS, UNDERWATER OBJECTS

Subject Categories : Physical and Dynamic Oceanography
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE