Abstract
The effects of a solitary internal wave on the low-frequency ocean acoustic field in a shallow-water waveguide have been examined using numerical simulations. The waveguide contained the inhomogeneous water column, range-dependent bathymetry, and inhomogeneous ocean bottomsubbottom. Environmental parameters (density, compressional and shear wave speeds and attenuations) in the bottom-subbottom varied in both range and depth Small variations in range and depth along the ocean bottom-subbottom interfaces were used to simulate seafloor roughness. The coupled acoustic fields in this total waveguide simulation were calculated using full-wave two-way range-dependent finite-element ocean acoustic computer models (FOAM, FFRAME, SAFE).
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References
Haury, L. R., Melbourne, M. G., and Orr, M. H. (1979), “Tidally generated internal wave packets in Massachusetts Bay,” Nature 278 312–317.
Zhou, J. X., Zhang, X. Z. and Rogers, P. H. (1991), “Resonant interaction of sound wave with internal solitons in the coastal zone,” J. Acoust. Soc. Am 90, 2042–2054.
Murphy, J. E. and Chin-Bing, S. A. (1988), “A finite element model for ocean acoustic propagation,” Mathematical and Computer Modeling, 11, 70–74.
Murphy, J. E. and Chin-Bing, S. A. (1989), “A finite element model for ocean acoustic propagation and scattering,” J. Acoust. Soc. Am. 86, 1478–1483.
Chin-Bing, S. A. and Murphy, J. E. (1990), “Acoustic wavefield distortion by sea-mounts: A finite element analysis,” in D. Lee, A. Cakmak and R. Vichnevetsky (eds.), Computational Acoustics, Vol. 1, Elsevier, North-Holland, 37–52.
Murphy, J. E. and Chin-Bing, S. A. (1991), “A seismo-acoustic finite element model for underwater acoustic propagation,” in J. M. Hovem, M. D. Richardson, and R. D. Stoll (eds.), Shear Waves in Marine Sediments, pp. 463–470, edited by J. M. Hovem, M. D. Richardson, and R. D. Stoll (Kluwer Press, 1991).
Chin-Bing, S. A. and Murphy, J. E. (1991), “Long-range ocean acoustic-seismic propagation modeling using hybrid finite element and parabolic equation models,” in Computational Acoustics edited by D. Lee, A. Robinson, and R. Vichnevetsky (Elsevier Publishers, North-Holland, 1992).
Chin-Bing, S. A. and Murphy, J. E. (1991), “Shear effects on ocean acoustic propagation due to step-periodic roughness along the ocean bottom interface,” Proc. of the Eight International Conference on Mathematical and Computer Modeling 1–4 April 1991, University of Maryland, College Park, MD. (In press).
Collins, M.D. (1988), “FEPE user’s guide,” NORDA TN-365, Naval Ocean Research and Development Activity, Stennis Space Center, Mississippi.
Evans, R. B. (1983), “A coupled mode solution for acoustic propagation in a waveguide with stepwise depth variations of a penetrable bottom,” J. Acoust. Soc. Am., 74, 188–194.
Collins, M.D. (1989), “A higher-order parabolic equation for wave propagation in an ocean overlying an elastic bottom,” J. Acoust. Soc. Am. 86, 1459–1464.
Schmidt, H. and Jensen, F. B. (1985), “Efficient numerical solution technique for wave propagation in horizontally stratified environments,” in M. H. Schultz and D. Lee (eds.), Computational Ocean Acoustics, Pergamon, New York, 699–715.
Lee, O. S. (1961), “Effect of an internal wave on sound in the ocean,” J. Acoust. Soc. Am. 33, 677–681.
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© 1993 Springer Science+Business Media Dordrecht
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Chin-Bing, S.A., King, D.B., Murphy, J.E. (1993). Numerical Simulations of Lower-Frequency Acoustic Propagation and Backscatter from Solitary Internal Waves in a Shallow Water Environment. In: Ellis, D.D., Preston, J.R., Urban, H.G. (eds) Ocean Reverberation. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2078-4_14
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DOI: https://doi.org/10.1007/978-94-011-2078-4_14
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