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Modelling Acoustic Surface Waves above a Snow Layer

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In a recent article [1] acoustic surface waves have been observed unambiguously above a layer of snow. Surface waves above a layer of polyurethane foam have been modelled in the past, using a model introduced by Johnson-Allard and Champoux. It is shown in this article that the observed surface waves can be modelled using this model with following parameters: q = 1.5, = 7000 Ns/m4, = 0.81, Λ = 50 m, Λ′ = 100 m and d = 0.21 m. The obtained values for the parameters also correspond to typical values measured for snow. The obtained results are interpreted in view of the movement of the pole in the complex sin plane under influence of the different parameters.
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Document Type: Research Article

Publication date: March 1, 2004

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  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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