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- W1985939511 abstract "Predictions for shallow-water acoustic propagation are usually accomplished assuming a deep-water spectrum for the sea surface roughness. In addition, the effect of surface roughness is normally included through a loss mechanism. However, for waveguide propagation, the surface roughness mainly causes a redistribution of energy and therefore, the use of an accurate model to handle roughness is essential to obtaining accurate results. In order to properly model shallow-water surface roughness, the parametric spectrum GONO [Sanders and Bruinsma, WaveDynamics and Radio Probing ofthe Ocean Surface, edited by O. M. Phillips and K. Hassemann (Plenum, New York 1986), pp. 615–637] has been implemented. This spectrum is appropriate for wind-driven surfaces in waters ranging in depth from 15 to 100 m. To investigate the impact that different spectra has on the propagating field, predictions using GONO and Pierson–Moskowitz spectra are compared for different environments and at frequencies typical of active and passive sonars. An acoustic propagation model, which includes a conformal mapping algorithm to properly handle sea surface roughness [Norton et al., J. Acoust. Soc. Am. 97, 2173–2180 (1995)] is used to generate the numerical results. [Work supported by ONR.]" @default.
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- W1985939511 date "1996-10-01" @default.
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- W1985939511 title "Modeling shallow‐water propagation with an appropriate sea‐surface roughness spectrum" @default.
- W1985939511 doi "https://doi.org/10.1121/1.416692" @default.
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