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Influence of Absorption in Low Salinity Sea Water on Nonlinear Wave Propagation

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Interaction of finite amplitude wave in nonlinear medium, for instance the sea water, is the phenomenon finding often practical application in underwater observation and communication. Conditions of finite amplitude wave generation and propagation in a low salinity sea water are analysed basing on data taken for the purpose in the Baltic Sea. Variations in the conditions caused by seasonal changes in hydrological conditions are discussed. Primary waves of frequency range from 20 kHz to 150 kHz are taken into account. The aim of the paper is to characterise the influence of absorption of low salinity seawater on the nonlinear wave propagation. The paper contains the results of research based on hydrological in situ measurements in the Southern Baltic.
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Document Type: Research Article

Publication date: 2002-09-01

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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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