Accession Number : AD0874424

Title :   Acoustic Reverberation at the Sea Surface: Surface and Sublayer Spectra Vis-a-Vis Scattering and Reflection,

Corporate Author : INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA

Personal Author(s) : Martin, John J.

Report Date : 15 MAY 1968

Pagination or Media Count : 38

Abstract : The paper combines previously developed theories of surface and volume scattering and reflection with published and previously unpublished acoustic reverberation data to develop a composite theory for reverberation strength as a function of acoustic frequency, incidence or grazing angle, and sea-surface wind speed. In passing, spectra of sea-surface roughness and of the surface sublayer turbulence are developed, these spectra being consonant with theoretical and experimental estimates. (Author)

Descriptors :   (*UNDERWATER SOUND, REVERBERATION), SURFACES, SEA WATER, SCATTERING, REFLECTION, POWER SPECTRA, WIND, VELOCITY, CORRELATION TECHNIQUES.

Subject Categories : Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE