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Chapter Active and Passive Acoustic Methods for In-situ Monitoring of the Ocean Status
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Year: 2017 Publisher: London : InTechOpen,

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Recent European strategic plans for the successful monitoring of the status of the ocean push on the development of an integrated observing system able to further link existing instruments and techniques with the aim to complement each other and answer open issues. A more intensive use of acoustic devices could contribute to the knowledge of oceanographic processes exploiting the characteristic of sound to travel in the ocean for a wide area than in the atmosphere. In this context, the installation of passive acoustic instruments, able to listen to ambient noise on fixed or mobile platforms, could contribute to provide information on sound budget and to enhance the monitoring capacity of meteorological phenomena also in the open ocean. Instead, the deployment of active acoustic instruments can be of benefit for monitoring biological activities through the analysis of backscatter data as well as for monitoring ocean waves.


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Sonochemistry and the acoustic bubble
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Year: 2015 Publisher: Amsterdam, Netherlands : Elsevier,

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Sonochemistry and the Acoustic Bubble provides an introduction to the way ultrasound acts on bubbles in a liquid to cause bubbles to collapse violently, leading to localized 'hot spots' in the liquid with temperatures of 5000° celcius and under pressures of several hundred atmospheres. These extreme conditions produce events such as the emission of light, sonoluminescence, with a lifetime of less than a nanosecond, and free radicals that can initiate a host of varied chemical reactions (sonochemistry) in the liquid, all at room temperature. The physics and chemistry behind the phenomen

Theoretical and computational acoustics 2003 : Honolulu, Hawaii, 11-15 August 2003
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ISBN: 1281898651 9786611898656 9812702601 9789812702609 9789812389213 9812389210 9812389210 9781281898654 6611898654 Year: 2003 Publisher: River Edge, N.J. : World Scientific,

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The ICTCA conference provides an interdisciplinary forum for active researchers in academia and industry who are of varying backgrounds to discuss the state-of-the-art developments and results in theoretical and computational acoustics and related topics. The papers presented at the meeting cover acoustical problems of common interest across disciplines and their accurate mathematical and numerical modeling. This volume collects papers that were presented at the sixth meeting. The subjects include geophysics, scattering and diffraction, the parabolic equation (with special sessions in honor of


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Ray and wave chaos in ocean acoustics : chaos in waveguides
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ISBN: 1282758055 9786612758058 981427318X Year: 2010 Publisher: Hackensack, N.J. : World Scientific,

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A systematic study of chaotic ray dynamics in underwater acoustics began in the mid-1990s when it was realized that this factor plays a crucial role in long-range sound propagation in the ocean. The phenomenon of ray chaos and its manifestation at a finite wavelength -- wave chaos -- have been investigated by combining methods from the theory of wave propagation and the theory of dynamical and quantum chaos. This is the first monograph summarizing results obtained in this field. Emphasis is made on the exploration of ray and modal structures of the wave field in an idealized environmental model with periodic range dependence and in a more realistic model with sound speed fluctuations induced by random internal waves. The book is intended for acousticians investigating the long-range sound transmission through the fluctuating ocean and also for researchers studying waveguide propagation in other media. It will be of major interest to scientists working in the field of dynamical and quantum chaos.

Fundamentals of marine acoustics
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ISBN: 0444415521 9786611772352 1281772356 0080870546 9780444415523 9780080870540 6611772359 9781281772350 Year: 1977 Publisher: Amsterdam ; New York : New York : Elsevier Scientific Pub. Co. ; distributors for the U.S. and Canada, Elsevier North-Holland,

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Fundamentals of Marine Acoustics


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Underwater Acoustics
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ISBN: 9535161830 9535104411 Year: 2012 Publisher: IntechOpen

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The field of acoustic engineering has many various potential applications, such as in ocean science research and homeland security. This book provides cutting-edge knowledge in current techniques and technologies, such as the adaptive technique for underwater communication, array processing and the CI/OFDM system. One chapter takes inspiration from the natural world in proposing a new bio-inspired ranging approach for resolution purposes. Technologies such as high-resolution array processing methods can also be used to locate underwater objects in sediment, as one chapter shows. Finally, two contributions cover the applications of narrowband interference suppression and iterative equalization, and decoding schemes. Given the scope of the book, it will be required reading for researchers and engineers in the field.

History of Russian underwater acoustics
Authors: ---
ISBN: 1281933619 9786611933616 9812790942 9789812790941 9781281933614 9789812568250 9812568255 Year: 2008 Publisher: Singapore ; Hackensack, N.J. : World Scientific,

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This book describes, using first-person accounts, the history of the development in the Soviet Union and, later, in Russia of an extremely important technical field and how that history was influenced by WWI, WWII, and the Cold War, by government bureaucracy, in both positive and negative ways, by the economic collapse of the Soviet Union, and most importantly, by the dedicated efforts of vast numbers of individuals, including some of the greatest scientific minds of the 20th century. It will make fascinating reading for engineers and scientists who were engaged in similar work in the West, fo

Theoretical and computational acoustics 2001 : Beijing, China, 21-25 May 2001
Authors: --- --- ---
ISBN: 128192962X 9786611929626 9812777369 9789812777362 9812380124 9789812380128 Year: 2002 Publisher: River Edge, N.J. : World Scientific,

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This book contains 67 papers presented at ICTCA2001. It includes three keynote addresses surveying the frontier developments in computational and theoretical acoustics. The papers cover aero-, seismo- and ocean acoustics, as well as ultrasonics. Computational methods, numerical simulation, theoretical analysis and experimental results are emphasized by different papers.The proceedings have been selected for coverage in: Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings)

Underwater scattering and radiation
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ISBN: 9781483257761 1483257762 9780124779228 0124779220 1322292159 Year: 1993 Publisher: San Diego, California ; London : Academic Press,

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Underwater Scattering and Radiation

Low-frequency sound and marine mammals : current knowledge and research needs
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ISBN: 0309050251 9786610195664 1280195665 0309567033 0585144427 9780309567039 9780585144429 9780309050258 9781280195662 6610195668 Year: 1994 Publisher: Washington, D.C. : National Academy Press,

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