Propagation of sound interacting with the ocean floor

• Autorzy: Überall H. , Arvelo J. , Yuan J.
• Konferencja: Proceedings of the 2 nd EAA International Symposium on Hydroacoustics 24-27 May 1999, Gdańsk-Jurata POLAND
• Języki publikacji: EN

Abstrakty

EN

Observed cases of residual intensities between convergence zones of propagating underwater sound, in the absence of a bottom slope must be explained, and are illustrated here, by the effects of sound penetrating into the ocean floor and returned back into the water column by the presence of an upward-refracting bottom sound speed gradient. It is shown that depending on the geometry and the bottom properties, this mechanism can lead lo quite dramatic examples of inter-convergence zone residuals, providing an interpretation of observed effects of this kind.

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 1999
• Tom: Vol. 2
• Strony: 291--296
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Überall H.

• Department of Physics, Catholic University of America Washington, DC 20064, USA

autor

Arvelo J.

• Department of Physics, Catholic University of America Washington, DC 20064, USA

autor

Yuan J.

• Department of Physics, Catholic University of America Washington, DC 20064, USA

Bibliografia

• 1. J. I. Arvelo, Adiabatic Normal-Mode Theory of Low-Frequency Sound Transmisston in a Shallow RangeDependent Ocean with Seismo-Acoustic Effects from the Elastic Bottom Sediments, Ph.D Dissertation, Catholic University of America (1989).
• 2. W. M. Carey, Measurement of down-slope propagation from a shalIow source to a deep ocean recciver, J. Acoust. Soc. Am. 79, pp. 49-59 (1986).
• 3. R. E. Christensen, J. A. Frank and W. H. Geddes, Low-Frequency propagation via shallow refracted path through deep ocean unconsolidated sediments, J. Acoust. Soc. Am. 57, pp. 1421-1427 (1975).
• 4. C. B. Officer, A deep sea seismic reflection profile, Geophys.20, pp. 270-282 (1955) ¬
• 5. M. B. Porter, The KRAKEN Normal Mode Program, SacIant Undersea Research Centre Technical Report, 1990.