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Adiabatic normal‐mode theory of sound propagation including shear waves in a range‐dependent ocean floor

 

作者: Juan I. Arvelo,   Herbert Überall,  

 

期刊: The Journal of the Acoustical Society of America  (AIP Available online 1990)
卷期: Volume 88, issue 5  

页码: 2316-2325

 

ISSN:0001-4966

 

年代: 1990

 

DOI:10.1121/1.400074

 

出版商: Acoustical Society of America

 

关键词: SOUND WAVES;WAVE PROPAGATION;SEA BED;NORMAL−MODE ANALYSIS;RANGE;SHEAR WAVES;BOUNDARY CONDITIONS

 

数据来源: AIP

 

摘要:

A normal‐mode model, including absorptive effects and elastic waves in the ocean floor, is presented for a source in the water column and a receiver in the water or the elastic medium. The appropriate boundary conditions between all liquid and solid layers are taken into account, and an absorptive semi‐infinite basement is assumed, which causes the radiating wave‐number spectrum to be discrete. The adiabatic approach has been adopted for the case where the acoustic properties or the boundaries vary slowly with range. Results of these calculations display the importance of even a slight range dependence, and of bottom elasticity in shallow‐center sound propagation.

 

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