Studies of the Marine Dynamic Processes by an Autonomous Hydroacoustic System
Autonomous Hydroacoustic System is designed to probe a water column acoustically from the bottom to the sea surface and simultaneously to register ambient sea noise. The echosounder component works at a frequency of 130 kHz. The ambient sea noise unit consists of two external hydrophones measuring the noise over the frequency spectrum from about 300 Hz to 35 kHz. The whole system is capable of operating up to the depth of 100 m self sufficiently for up to 10 days yielding a long-term data series on sound backscattering by marine organisms, gas bubbles and sea surface. It enables different dynamic surface phenomena to be evaluated, for example wind generated bubble concentrations, weather conditions and tide amplitude and periodicity.
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Document Type: Short Communication
Publication date: January 1, 2006
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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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