Accession Number : AD0786013

Title :   Development of a Theoretical Model for Sound Propagation in a Deep, Variable Ocean,

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

Personal Author(s) : Clarke,Richard H.

Report Date : 01 SEP 1974

Pagination or Media Count : 23

Abstract : The report describes the development of a 'philosophy' or method of approach to the problem of obtaining quantitative predictions of the fluctuating sound field as it propagates in a deep, variable ocean. By combining the use of ray tracing with statistical diffraction theory the method takes simultaneous account of the acoustic effects of the large-scale (mainly) vertical variations in soundspeed, the rough sea surface, internal waves, small-scale turbulent fluctuations in soundspeed, and arbitrary directivities of source and receiver.

Descriptors :   *UNDERWATER SOUND, *DEEP WATER, SOUND TRANSMISSION, RAY TRACING, ACOUSTIC VELOCITY, DIFFRACTION, VARIATIONS, ROUGHNESS, SEA WATER, PREDICTIONS, SEA STATES, MATHEMATICAL MODELS, INTERNAL WAVES, ANOMALIES, ITALY, UNDERWATER SOUND EQUIPMENT

Subject Categories : Physical and Dynamic Oceanography
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE