Ocean Variability & Acoustic Propagation

Ocean Variability & Acoustic Propagation

Author: J. Potter

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 599

ISBN-13: 9401133123

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Fifteen years ago NATO organised a conference entitled 'Ocean Acoustic Modelling'. Many of its participants were again present at this variability workshop. One such participant. in concluding his 1975 paper, quoted the following from a 1972 literature survey: ' ... history presents a sad lack of communications between acousticians and oceanographers' Have we done any better in the last 15 years? We believe so, but only moderately. There is still a massive underdeveloped potential for acousticians and oceanographers to make significant progress together. Currently, the two camps talk together insufficiently even to avoid simple misun derstandings. such as those in Table 1. Table 1 Ocsanographic and acoustic jargon (from an idea by Pol/ardi Jargon Oceanographic use Acoustic use dbordB decibar (depth in m) decibel (energy level) PE primitive equations parabolic equations convergence zone converging currents converging rays (downwelling water) (high energy density) front thermohaline front wave, ray or time front speed water current speed sound propagation speed 1 The list goes on.


The Acoustic Bubble

The Acoustic Bubble

Author: T Leighton

Publisher: Academic Press

Published: 2012-12-02

Total Pages: 641

ISBN-13: 0323144136

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The Acoustic Bubble describes the interaction of acoustic fields with bubbles in liquid. The book consists of five chapters. Chapter 1 provides a basic introduction to acoustics, including some of the more esoteric phenomena that can be seen when high-frequency high-intensity underwater sound is employed. Chapter 2 discusses the nucleation of cavitation and basic fluid dynamics, while Chapter 3 draws together the acoustics and bubble dynamics to discuss the free oscillation of a bubble and acoustic emissions from such activity. The acoustic probes that are often applied to study the behavior of a bubble when an externally-applied acoustic field drives it into oscillation is deliberated in Chapter 4. The last chapter outlines a variety of effects associated with acoustically-induced bubble activity. The bubble detection, sonoluminescence, sonochemistry, and pulse enhancement are also covered. This publication is a good reference for physics and engineering students and researchers intending to acquire knowledge of the acoustic interactions of acoustic fields with bubbles.


Principles of Ocean Physics

Principles of Ocean Physics

Author: John R. Apel

Publisher: Elsevier

Published: 2013-10-22

Total Pages: 656

ISBN-13: 1483288056

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In recent years, significant advances in both the theoretical and observational sides of physical oceanography have allowed the ocean's physical behavior to be described more quantitatively. This book discusses the physical mechanisms and processes of the sea, and will be valuable not only to oceanographers but also physicists, graduate students, and scientists working in dynamics or optics of the marine environment.


Breaking and Dissipation of Ocean Surface Waves

Breaking and Dissipation of Ocean Surface Waves

Author: Alexander Babanin

Publisher: Cambridge University Press

Published: 2011-05-19

Total Pages: 479

ISBN-13: 1139502727

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Wave breaking represents one of the most interesting and challenging problems for fluid mechanics and physical oceanography. Over the last fifteen years our understanding has undergone a dramatic leap forward, and wave breaking has emerged as a process whose physics is clarified and quantified. Ocean wave breaking plays the primary role in the air-sea exchange of momentum, mass and heat, and it is of significant importance for ocean remote sensing, coastal and ocean engineering, navigation and other practical applications. This book outlines the state of the art in our understanding of wave breaking and presents the main outstanding problems. It is a valuable resource for anyone interested in this topic, including researchers, modellers, forecasters, engineers and graduate students in physical oceanography, meteorology and ocean engineering.