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- W2073753721 abstract "Experimental data for sound propagation across a steep seamount (14° mean slope) was recently reported [G. R. Ebbeson and R. G. Turner, J. Acoust. Soc. Am. 73, 143–152 (1983)]. The broadband data exhibit a frequency-dependent shadowing effect with a drop in sound level just behind the mount of more than 20 dB at 12.5 Hz. An earlier attempt to explain these propagation features using the parabolic-equation technique gave promising results [F. B. Jensen, W. A. Kuperman, and H. Medwin, J. Acoust. Soc. Am. Suppl. I 68, S52 (1980)]. The data have now been subjected to a detailed modeling using both range-dependent ray theory and the recently developed wide-angled parabolic equation theory [D. Lee, G. Botseas, and J. S. Papadakis, J. Acoust. Soc. Am. 70, 795–800 (1981)]. It is found that the full complexity of the propagation situation is well handled by both the acoustic models, and that the shadowing is due to the cutoff of steep propagation paths (bottom-bounce paths) by the seamount, leaving mainly waterborne paths to propagate beyond the mount. For these latter paths the surface-decoupling loss essentially determines the frequency dependence of the measured loss." @default.
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- W2073753721 date "1983-11-01" @default.
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- W2073753721 title "Modeling of sound propagation over Dickins Seamount" @default.
- W2073753721 doi "https://doi.org/10.1121/1.2021239" @default.
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