Title :
Low-frequency acoustic wave-scattering phenomena under ice cover
Author_Institution :
US Naval Underwater Syst. Center, New London, CT, USA
fDate :
10/1/1990 12:00:00 AM
Abstract :
Studies on low-frequency acoustic wave-scattering phenomena due to under-ice roughness made by utilizing a rough, thin-ice plate model are presented. The model naturally divides the reflected field solution into specular and off-specular components. The model for specular components can give an excellent propagation loss prediction if the combined effects of under-ice roughness scattering, ice absorptions, and ice thickness are taken into account. The model for scattered or off-specular components is evaluated for a point source and point receiver geometry to study various spreading phenomena
Keywords :
sea ice; underwater sound; acoustic wave-scattering; ice cover; low frequency sound; ocean; offspecular; reflected field; reflection; sea ice; specular; thin-ice plate model; under-ice roughness; underside; underwater sound; Acoustic scattering; Acoustic waves; Frequency; Ice; Perturbation methods; Propagation losses; Reflectivity; Rough surfaces; Sea surface; Surface roughness;
Journal_Title :
Oceanic Engineering, IEEE Journal of
