Ocean and Seabed Acoustics

Ocean and Seabed Acoustics
Author: George V. Frisk
Publsiher: Pearson Education
Total Pages: 300
Release: 1994-01-02
Genre: Technology & Engineering
ISBN: 9780132441544

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Respected scientist and educator George V. Frisk draws on his extensive professional experience to demonstrate how the ocean environment provides an excellent setting in which to display general principles of wave propagation that are also applicable to other areas of wave physics. Ocean and Seabed Acoustics proceeds with a derivation of elementary solutions to the wave equation in free space and then progressively addresses problems of increasing complexity. This book concludes with a discussion of acoustic wave propagation due to a point source in an inhomogeneous waveguide with lossy boundaries.

Computational Ocean Acoustics

Computational Ocean Acoustics
Author: Finn B. Jensen,William A. Kuperman,Michael B. Porter,Henrik Schmidt
Publsiher: Springer Science & Business Media
Total Pages: 794
Release: 2011-06-10
Genre: Science
ISBN: 9781441986788

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Senior level/graduate level text/reference presenting state-of-the- art numerical techniques to solve the wave equation in heterogeneous fluid-solid media. Numerical models have become standard research tools in acoustic laboratories, and thus computational acoustics is becoming an increasingly important branch of ocean acoustic science. The first edition of this successful book, written by the recognized leaders of the field, was the first to present a comprehensive and modern introduction to computational ocean acoustics accessible to students. This revision, with 100 additional pages, completely updates the material in the first edition and includes new models based on current research. It includes problems and solutions in every chapter, making the book more useful in teaching (the first edition had a separate solutions manual). The book is intended for graduate and advanced undergraduate students of acoustics, geology and geophysics, applied mathematics, ocean engineering or as a reference in computational methods courses, as well as professionals in these fields, particularly those working in government (especially Navy) and industry labs engaged in the development or use of propagating models.

Applied Underwater Acoustics

Applied Underwater Acoustics
Author: Thomas Neighbors,David Bradley
Publsiher: Elsevier
Total Pages: 980
Release: 2017-01-19
Genre: Science
ISBN: 9780128112472

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Applied Underwater Acoustics meets the needs of scientists and engineers working in underwater acoustics and graduate students solving problems in, and preparing theses on, topics in underwater acoustics. The book is structured to provide the basis for rapidly assimilating the essential underwater acoustic knowledge base for practical application to daily research and analysis. Each chapter of the book is self-supporting and focuses on a single topic and its relation to underwater acoustics. The chapters start with a brief description of the topic’s physical background, necessary definitions, and a short description of the applications, along with a roadmap to the chapter. The subtopics covered within individual subchapters include most frequently used equations that describe the topic. Equations are not derived, rather, assumptions behind equations and limitations on the applications of each equation are emphasized. Figures, tables, and illustrations related to the sub-topic are presented in an easy-to-use manner, and examples on the use of the equations, including appropriate figures and tables are also included. Provides a complete and up-to-date treatment of all major subjects of underwater acoustics Presents chapters written by recognized experts in their individual field Covers the fundamental knowledge scientists and engineers need to solve problems in underwater acoustics Illuminates, in shorter sub-chapters, the modern applications of underwater acoustics that are described in worked examples Demands no prior knowledge of underwater acoustics, and the physical principles and mathematics are designed to be readily understood by scientists, engineers, and graduate students of underwater acoustics Includes a comprehensive list of literature references for each chapter

Acoustic Sensing Techniques for the Shallow Water Environment

Acoustic Sensing Techniques for the Shallow Water Environment
Author: Andrea Caiti,N. Ross Chapman,Jean-Pierre Hermand,Sérgio M. Jesus
Publsiher: Springer Science & Business Media
Total Pages: 332
Release: 2006-09-21
Genre: Science
ISBN: 9781402043864

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This volume contains the collection of papers from the second workshop on Experimental Acoustic Inversion Techniques for Exploration of the Shallow Water Environment. Acoustic techniques provide the most effective means for remote sensing of ocean and sea floor processes, and for probing the structure beneath the sea floor. No other energy propagates as efficiently in the ocean: radio waves and visible light are severely limited in range because the ocean is a highly conductive medium. However, sound from breaking waves and coastal shipping can be heard throughout the ocean, and marine mammals communicate acoustically over basin scale distances. The papers in this book indicate a high level of research interest that has generated significant progress in development and application of experimental acoustic inversion techniques. The applications span a broad scope in geosciences, from geophysical, biological and even geochemical research. The list includes: estimation of geotechnical properties of sea bed materials; navigation and mapping of the sea floor; fisheries, aquaculture and sea bed habitat assessment; monitoring of marine mammals; sediment transport; and investigation of natural geohazards in marine sediments. Audience This book is primarily intended for physicists and engineers working in underwater acoustics and oceanic engineering. It will also be of interest to marine biologists, geophysicists and oceanographers as potential users of the methodologies and techniques described in the book contributions.

Full Field Inversion Methods in Ocean and Seismo Acoustics

Full Field Inversion Methods in Ocean and Seismo Acoustics
Author: Orest Diachok,Andrea Caiti,Peter Gerstoft,Henrik Schmidt
Publsiher: Springer Science & Business Media
Total Pages: 421
Release: 2013-04-17
Genre: Technology & Engineering
ISBN: 9789401584760

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Recent advances in the power of inversion methods, the accuracy of acoustic field prediction codes, and the speed of digital computers have made the full field inversion of ocean and seismic parameters on a large scale a practical possibility. These methods exploit amplitude and phase information detected on hydrophone/geophone arrays, thereby extending traditional inversion schemes based on time of flight measurements. Full field inversion methods provide environmental information by minimising the mismatch between measured and predicted acoustic fields through a global search of possible environmental parameters. Full Field Inversion Methods in Ocean and Seismo-Acoustics is the formal record of a conference held in Italy in June 1994, sponsored by NATO SACLANT Undersea Research Centre. It includes papers by NATO specialists and others. Topics covered include: · speed and accuracy of acoustic field prediction codes · signal processing strategies · global inversion algorithms · search spaces of environmental parameters · environmental stochastic limitations · special purpose computer architectures · measurement geometries · source and receiving sensor technologies.

OCEANOGRAPHY Volume III

OCEANOGRAPHY    Volume III
Author: Chen-Tung Arthur Chen,Jacques C. J. Nihoul
Publsiher: EOLSS Publications
Total Pages: 378
Release: 2009-04-16
Genre: Electronic Book
ISBN: 9781905839643

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Oceanography is a component of Encyclopedia of Earth and Atmospheric Sciences in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. These volumes deal with the oceans as an integrated dynamic system, characterized by a delicate, complex system of interactions among the biota, the ocean boundaries with the solid earth and the atmosphere. This set of volumes is designed to be a very authoritative reference for state-of-the-art knowledge on the various aspects such as: Physical Oceanography, Chemistry of the oceans, Biological Oceanography, Geological oceanography, Coral Reefs as a Life Supporting System, Human Uses of the Oceans, Ocean Engineering, and Modeling the Ocean System from a Sustainable Development perspective. These volumes are aimed at the following five major target audiences: University and College students Educators, Professional practitioners, Research personnel and Policy analysts, managers, and decision makers and NGOs.

Electromagnetic Waves

Electromagnetic Waves
Author: Carlo G. Someda
Publsiher: CRC Press
Total Pages: 628
Release: 1998-05-12
Genre: Technology & Engineering
ISBN: 0412578700

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This book provides a comprehensive treatment of electromagnetic waves. The author's approach is thoroughly modern, and unlike many others, this text offers a unified view of electromagnetic waves and their applications in telecommunications, radar, and photonics. The extensive coverage of Electromagnetic Waves begins with Maxwell's equations and takes students on the journey from the wave and Helmholtz equations through polarization, plane waves, and wave beams and packets, to antennas, transmission lines, and waveguides. Completing the treatment are chapters devoted to diffraction and an introduction to the theory of coherence. The author strikes an effective balance of the teach-through-concepts and teach-by-example approaches. The book is filled with exercises, current applications, and exercises that solidify students' understanding and bring relevance to the material. It forms an outstanding text for senior undergraduates and graduate-level students in electrical engineering and physics.

Digital Sonar Design in Underwater Acoustics

Digital Sonar Design in Underwater Acoustics
Author: Qihu Li
Publsiher: Springer Science & Business Media
Total Pages: 600
Release: 2012-03-05
Genre: Science
ISBN: 9783642182907

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"Digital Sonar Design in Underwater Acoustics Principles and Applications" provides comprehensive and up-to-date coverage of research on sonar design, including the basic theory and techniques of digital signal processing, basic concept of information theory, ocean acoustics, underwater acoustic signal propagation theory, and underwater signal processing theory. This book discusses the general design procedure and approaches to implementation, the design method, system simulation theory and techniques, sonar tests in the laboratory, lake and sea, and practical validation criteria and methods for digital sonar design. It is intended for researchers in the fields of underwater signal processing and sonar design, and also for navy officers and ocean explorers. Qihu Li is a professor at the Institute of Acoustics, Chinese Academy of Sciences, and an academician of the Chinese Academy of Sciences.

Sound Images of the Ocean

Sound Images of the Ocean
Author: Peter Wille
Publsiher: Springer Science & Business Media
Total Pages: 471
Release: 2005-12-06
Genre: Science
ISBN: 9783540279105

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Sound Images of the Ocean is the first comprehensive overview of acoustic imaging applications in the various fields of marine research, utilization, surveillance, and protection. The book employs 400 sound images of the sea floor and of processes in the sea volume, contributed by more than 120 marine experts from 22 nations.

Underwater Acoustic Modelling and Simulation

Underwater Acoustic Modelling and Simulation
Author: P.C. Etter
Publsiher: CRC Press
Total Pages: 384
Release: 2003-12-08
Genre: Technology & Engineering
ISBN: 9781482295146

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Underwater Acoustic Modeling and Simulation examines the translation of our physical understanding of sound in the sea into mathematical models that can simulate acoustic propagation, noise and reverberation in the ocean. These models are used in a variety of research and operational applications to predict and diagnose the performance of complex s

Ocean Noise and Marine Mammals

Ocean Noise and Marine Mammals
Author: National Research Council,Division on Earth and Life Studies,Ocean Studies Board,Committee on Potential Impacts of Ambient Noise in the Ocean on Marine Mammals
Publsiher: National Academies Press
Total Pages: 220
Release: 2003-06-22
Genre: Science
ISBN: 9780309085366

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For the 119 species of marine mammals, as well as for some other aquatic animals, sound is the primary means of learning about the environment and of communicating, navigating, and foraging. The possibility that human-generated noise could harm marine mammals or significantly interfere with their normal activities is an issue of increasing concern. Noise and its potential impacts have been regulated since the passage of the Marine Mammal Protection Act of 1972. Public awareness of the issue escalated in 1990s when researchers began using high-intensity sound to measure ocean climate changes. More recently, the stranding of beaked whales in proximity to Navy sonar use has again put the issue in the spotlight. Ocean Noise and Marine Mammals reviews sources of noise in the ocean environment, what is known of the responses of marine mammals to acoustic disturbance, and what models exist for describing ocean noise and marine mammal responses. Recommendations are made for future data gathering efforts, studies of marine mammal behavior and physiology, and modeling efforts necessary to determine what the long- and short-term impacts of ocean noise on marine mammals.

Underwater Acoustic Modeling and Simulation Fifth Edition

Underwater Acoustic Modeling and Simulation  Fifth Edition
Author: Paul C. Etter
Publsiher: CRC Press
Total Pages: 608
Release: 2018-03-15
Genre: Technology & Engineering
ISBN: 9781351679718

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This newest edition adds new material to all chapters, especially in mathematical propagation models and special applications and inverse techniques. It has updated environmental-acoustic data in companion tables and core summary tables with the latest underwater acoustic propagation, noise, reverberation, and sonar performance models. Additionally, the text discusses new applications including underwater acoustic networks and channel models, marine-hydrokinetic energy devices, and simulation of anthropogenic sound sources. It further includes instructive case studies to demonstrate applications in sonar simulation.

Theoretical and Computational Acoustics 2005

Theoretical and Computational Acoustics 2005
Author: Dr. Alexandra Tolstoy,Erchang Shang,Yu-Chiung Teng
Publsiher: World Scientific
Total Pages: 218
Release: 2006
Genre: Science
ISBN: 9789812772602

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Preface -- Reconstruction of sound pressure field by IFEM / R. Anderssohn [und weitere] -- Seabed parameter estimation by inversion of long range sound propagation fields / W. Chen, L. Ma and N.R. Chapman -- High resolution radon transform and wavefield separation / J. Chen [und weitere] -- Three-dimensional acoustic simulation on acoustic scattering by nonlinear internal wave in coastal ocean / L.Y.S. Chiu, C.-F. Chen and J.F. Lynch -- Estimation of shear wave velocity in seafloor sediment by seismo-acoustic interface waves: a case study for geotechnical application / H. Dong, J.M. Hovem and S.A. Frivik. The optimum source depth distribution for reverberation inversion in a shallow-water waveguide / T.F. Gao and E.C. Shang -- Semi-automatic adjoint PE modeling for geoacoustic inversion / J.-P. Hermand [und weitere] -- Modeling 3D wave propagation in the ocean coupled with elastic bottom and irregular interface / L.-W. Hsieh, D. Lee and C.-F. Chen -- Reflections from steel plates with doubly periodic anechoic coatings / S. Ivansson -- Seismic characterization and monitoring of thin-layer reservoir / L. Jin, X. Chen and J. Li -- The energy-conserving property of the standard PE / D. Lee and E.-C. Shang -- Estimation of anisotropic properties from a surface seismic survey and log data / R. Li and M. Urosevic -- Using Gaussian beam model in oceans with penetrating slope bottoms / Y.-T. Lin [und weitere] -- Application Niche genetic algorithms to AVOA inversion in orthorhombic media / M.-H. Lu and H.-Z. Yang -- Reconstruction of seismic impedance from marine seismic data / B.R. Mabuza [und weitere] -- Characterization of an underwater acoustic signal using the statistics of the wavelet subband coefficients / M.I. Taroudakis, G. Tzagkarakis and P. Tsakalides -- Some theoretical aspects for elastic wave modeling in a recently developed spectral element method / X.M. Wang, G. Seriani and W.J. Lin -- Inversion of bottom back-scattering matrix / J.R. Wu, T.F. Gao and E.C. Shang -- New methods of scattering coefficients computation for the prediction of room acoustic parameters / X. Zeng, C.L. Christensen and J.H. Rindel

Theoretical and Computational Acoustics 2005

Theoretical and Computational Acoustics 2005
Author: Anonim
Publsiher: Unknown
Total Pages: 135
Release: 2022
Genre: Electronic Book
ISBN: 9789814476720

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Environmental Applications of Remote Sensing

Environmental Applications of Remote Sensing
Author: Maged Marghany
Publsiher: BoD – Books on Demand
Total Pages: 418
Release: 2016-06-08
Genre: Science
ISBN: 9789535124436

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Nowadays, the innovation in space technologies creates a new trend for the Earth observation and monitoring from space. This book contains high quality and compressive work on both microwave and optical remote sensing applications. This book is divided into five sections: (i) remote sensing for biomass estimation, (ii) remote sensing-based glacier studies, (iii) remote sensing for coastal and ocean applications, (iv) sewage leaks and environment disasters, and (v) remote sensing image processing. Each chapter offers an opportunity to expand the knowledge about various remote sensing techniques and persuade researchers to deliver new research novelty for environment studies.