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Coastal Acoustic Tomography

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Coastal Acoustic Tomography

Coastal Acoustic Tomography Book
Author : Arata Kaneko,Xiao-Hua Zhu,Ju Lin
Publisher : Elsevier
Release : 2020-02-05
ISBN : 0128189428
Language : En, Es, Fr & De

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Book Description :

Coastal Acoustic Tomography begins with the specifics required for designing a Coastal Acoustic Tomography (CAT) experiment and operating the CAT system in coastal seas. Following sections discuss the procedure for data analyses and various application examples of CAT to coastal/shallow seas (obtained in various locations). These sections are broken down into four kinds of methods: horizontal-slice inversion, vertical-slice inversion, modal expansion method and data assimilation. This book emphasizes how dynamic phenomena occurring in coastal/shallow seas can be analyzed using the standard method of inversion and data assimilation. The book is relevant for physical oceanographers, ocean environmentalists and ocean dynamists, focusing on the event being observed rather than the intrinsic details of observational processes. Application examples of successful dynamic phenomena measured by coastal acoustic tomography are also included. Provides the information needed for researchers and graduate students in physical oceanography, ocean-fluid dynamics and ocean environments to apply Ocean Acoustic Tomography (OAT) to their own fields Presents the benefits of using acoustic tomography, including less disturbance to aquatic environments vs. other monitoring methods Includes the assimilation of CAT data into a coastal sea circulation model, a powerful tool to predict coastal-sea environmental changes

Coastal Acoustic Tomography

Coastal Acoustic Tomography Book
Author : Arata Kaneko,Xiao-Hua Zhu,Ju Lin
Publisher : Elsevier
Release : 2020-02-15
ISBN : 9780128185070
Language : En, Es, Fr & De

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Book Description :

Coastal Acoustic Tomography consists of three sections, beginning with the specifics required for designing a Coastal Acoustic Tomography (CAT) experiment and operating the CAT system in the coastal seas. The section that follows presents the procedure for data analyses. In the third section, various application examples of CAT to coastal/shallow seas (obtained in various locations) are provided. These sections are broken down into four kinds of methods: horizontal-slice inversion, vertical-slice inversion, modal expansion method and data assimilation. Coastal Acoustic Tomography emphasizes how dynamic phenomena occurring in coastal/shallow seas can be analysed using the standard method of inversion and data assimilation. The book is relevant for physical oceanographers, ocean environmentalists and ocean dynamists and it focuses on their main interest, which is of the event being observed rather than the intrinsic details of observational processes. Various application examples of dynamic phenomena which have been successfully measured by coastal acoustic tomography are also included. Provides the information needed for researchers and graduate students in physical oceanography, ocean-fluid dynamics and ocean environments to apply Ocean Acoustic Tomography (OAT) to their own fields Presents the benefits of using acoustic tomography, including less disturbance to aquatic environments versus other monitoring methods Includes the assimilation of CAT data into a coastal sea circulation model, a powerful tool to predict coastal-sea environmental changes

Ocean Acoustic Tomography

Ocean Acoustic Tomography Book
Author : Walter Heinrich Munk,Walter Munk,Peter Worcester,Carl Wunsch
Publisher : Cambridge University Press
Release : 1995-06-30
ISBN : 0521470951
Language : En, Es, Fr & De

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Book Description :

This book presents the oceanography and mathematics necessary to develop a practical system to interpret the behaviour of the oceans.

Measuring Ocean Currents

Measuring Ocean Currents Book
Author : Antony Joseph
Publisher : Newnes
Release : 2013-08-12
ISBN : 0123914280
Language : En, Es, Fr & De

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Book Description :

Measuring Ocean Currents: Tools, Technologies, and Data covers all major aspects of ocean current measurements in view of the implications of ocean currents on changing climate, increasing pollution levels, and offshore engineering activities. Although more than 70% of the Earth is covered by ocean, there is limited information on the countless fine- to large-scale water motions taking place within them. This book fills that information gap as the first work that summarizes the state-of-the-art methods and instruments used for surface, subsurface, and abyssal ocean current measurements. Readers of this book will find a wealth of information on Lagrangian measurements, horizontal mapping, imaging, Eulerian measurements, and vertical profiling techniques. In addition, the book describes modern technologies for remote measurement of ocean currents and their signatures, including HF Doppler radar systems, satellite-borne sensors, ocean acoustic tomography, and more. Crucial aspects of ocean currents are described in detail as well, including dispersion of effluents discharged into the sea and transport of beneficial materials—as well as environmentally hazardous materials—from one region to another. The book highlights several important practical applications, showing how measurements relate to climate change and pollution levels, how they affect coastal and offshore engineering activities, and how they can aid in tsunami detection. Coverage of measurement, mapping and profiling techniques Descriptions of technologies for remote measurement of ocean currents and their signatures Reviews crucial aspects of ocean currents, including special emphasis on the planet-spanning thermohaline circulation, known as the ocean's "conveyor belt," and its crucial role in climate change

Theoretical And Computational Acoustics 2001

Theoretical And Computational Acoustics 2001 Book
Author : T F Gao,Qihu Li,Er-chang Shang
Publisher : World Scientific
Release : 2002-07-25
ISBN : 981448847X
Language : En, Es, Fr & De

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Book Description :

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)

Theoretical and Computational Acoustics 2001

Theoretical and Computational Acoustics 2001 Book
Author : Er-Chang Shang,Qihu Li,T. F. Gao
Publisher : World Scientific
Release : 2002
ISBN : 9812380124
Language : En, Es, Fr & De

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Book Description :

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.

Experimental Acoustic Inversion Methods for Exploration of the Shallow Water Environment

Experimental Acoustic Inversion Methods for Exploration of the Shallow Water Environment Book
Author : Andrea Caiti,Jean-Pierre Hermand,Sérgio Jesus,Michael Porter
Publisher : Springer Science & Business Media
Release : 2012-12-06
ISBN : 9401141126
Language : En, Es, Fr & De

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Book Description :

In recent years, research on acoustic remote sensing of the ocean has evolved considerably, especially in studying complex physical and biological processes in shallow water environments. To review the state of the art, an international workshop was held at Carvoeiro, Portugal, in March 1999, bringing together leading international researchers in the field. In contrast to much of the recent theoretical work, emphasis was placed on the experimental validation of the techniques. This volume, based on presentations at this workshop, summarizes a range of diverse and innovative applications. The invited contributions explore the use of acoustics to measure bottom properties and morphology, as well as to probe buried objects within the sediment. Within the water column, sound is applied to imaging of oceanographic features such as currents and tides or monitoring of marine life. Another key theme is the use of sound to solve geometric inverse problems for precise tracking of undersea vehicles. Audience: This volume should be useful both to the novice seeking an introduction to the field and to advanced researchers interested in the latest developments in acoustic sensing of the ocean environment. The workshop was sponsored by the Fundação para a Ciêcia e a Tecnologia (Portuguese Foundation for Science and Technology).

Full Field Inversion Methods in Ocean and Seismo Acoustics

Full Field Inversion Methods in Ocean and Seismo Acoustics Book
Author : Orest Diachok,Andrea Caiti,Peter Gerstoft,Henrik Schmidt
Publisher : Springer Science & Business Media
Release : 2013-04-17
ISBN : 9401584761
Language : En, Es, Fr & De

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Book Description :

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.

Theoretical And Computational Acoustics Proceedings Of The International Conference In 2 Volumes

Theoretical And Computational Acoustics   Proceedings Of The International Conference  In 2 Volumes  Book
Author : Williams John E Ffowcs,Lee Ding,Pierce Allan D
Publisher : World Scientific
Release : 1994-10-25
ISBN : 9814551724
Language : En, Es, Fr & De

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Book Description :

Download Theoretical And Computational Acoustics Proceedings Of The International Conference In 2 Volumes book written by Williams John E Ffowcs,Lee Ding,Pierce Allan D, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Advancing Ocean Observing Technology and Industry Science Partnerships for the Future of Ocean Science

Advancing Ocean Observing Technology and Industry   Science Partnerships for the Future of Ocean Science Book
Author : Ole Mikkelsen,Paula Bontempi,Alex Nimmo-Smith,Wayne Homer Slade,Ho Kyung Ha
Publisher : Frontiers Media SA
Release : 2022-03-21
ISBN : 2889744035
Language : En, Es, Fr & De

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Book Description :

Download Advancing Ocean Observing Technology and Industry Science Partnerships for the Future of Ocean Science book written by Ole Mikkelsen,Paula Bontempi,Alex Nimmo-Smith,Wayne Homer Slade,Ho Kyung Ha, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Applied Underwater Acoustics

Applied Underwater Acoustics Book
Author : Thomas Neighbors,David Bradley
Publisher : Elsevier
Release : 2017-01-19
ISBN : 0128112476
Language : En, Es, Fr & De

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Book Description :

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

Ocean Acoustics

Ocean Acoustics Book
Author : J.A. DeSanto
Publisher : Springer Science & Business Media
Release : 2013-11-11
ISBN : 3642812945
Language : En, Es, Fr & De

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Book Description :

This Topics volume is devoted to a study of sound propagation in the ocean. The effect of the interior of the ocean on underwater sound is analogous to the effect of a lens on light. The oceanic lens is related, as in light propagation, to the index of refraction of the medium. The latter is giv~n by the ratio of the sound frequency to the speed of sound in water, typi ca lly about 1500 m s -1. It is the vari ation of the sound speed due to changing temperature, density, salinity, and pres sure in the complex ocean environment which creates the lens effect. Many oceanic processes such as currents, tides, eddies (circulating, translating regions of wa ter), and internal waves (the wave-like structure of the oceanic density variabil ity) contri bute in turn to the changes in sound speed'. The net effect of the ocean lens is to trap and guide sound waves in a channel created by the lens. The trapped sound can then propagate thousands of miles in this oceanic waveguide. In addition to the propagation in the interior of the ocean, sound can propagate into and back out of the ocean bottom as well as scatter from the ocean surface. Just as the sound produced by a loudspeaker in a room is affected by the walls of the room, so the ocean boundaries and the material properties below the ocean bottom are essential ingredients in the problem.

Compilation of Theses Abstracts October 1994 September 1995

Compilation of Theses Abstracts  October 1994 September 1995 Book
Author : United States. Naval Postgraduate School, Monterey, CA.
Publisher : Unknown
Release : 1995
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Compilation of Theses Abstracts October 1994 September 1995 book written by United States. Naval Postgraduate School, Monterey, CA., available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Springer Handbook of Acoustics

Springer Handbook of Acoustics Book
Author : Thomas Rossing
Publisher : Springer Science & Business Media
Release : 2007-06-21
ISBN : 0387304460
Language : En, Es, Fr & De

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Book Description :

This is an unparalleled modern handbook reflecting the richly interdisciplinary nature of acoustics edited by an acknowledged master in the field. The handbook reviews the most important areas of the subject, with emphasis on current research. The authors of the various chapters are all experts in their fields. Each chapter is richly illustrated with figures and tables. The latest research and applications are incorporated throughout, including computer recognition and synthesis of speech, physiological acoustics, diagnostic imaging and therapeutic applications and acoustical oceanography. An accompanying CD-ROM contains audio and video files.

Fundamentals of Shallow Water Acoustics

Fundamentals of Shallow Water Acoustics Book
Author : Boris Katsnelson,Valery Petnikov,James Lynch
Publisher : Springer Science & Business Media
Release : 2012-02-22
ISBN : 1441997768
Language : En, Es, Fr & De

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Book Description :

Shallow water acoustics (SWA), the study of how low and medium frequency sound propagates and scatters on the continental shelves of the worlds oceans, has both technical interest and a large number of practical applications. Technically, shallow water poses an interesting medium for the study of acoustic scattering, inverse theory, and propagation physics in a complicated oceanic waveguide. Practically, shallow water acoustics has interest for geophysical exploration, marine mammal studies, and naval applications. Additionally, one notes the very interdisciplinary nature of shallow water acoustics, including acoustical physics, physical oceanography, marine geology, and marine biology. In this specialized volume the authors, all of whom have extensive at-sea experience in US and Russian research efforts, have tried to summarize the main experimental, theoretical, and computational results in shallow water acoustics, with an emphasis on providing physical insight into the topics presented.

Advances in Mineral Resources Geotechnology and Geological Exploration

Advances in Mineral Resources  Geotechnology and Geological Exploration Book
Author : Ahmad Safuan Bin A Rashid,Junwen Zhang
Publisher : CRC Press
Release : 2022-09-22
ISBN : 1000812758
Language : En, Es, Fr & De

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Book Description :

Advances in Mineral Resources, Geotechnology and Geological Exploration focuses on the research of mineral resources, geotechnology and geological exploration. The proceedings features the most cutting-edge research directions and achievements related to geology. Subjects in this proceedings include: · Materials of geography · Resource exploration · Geotechnical engineering · Rock mechanics and rock engineering The works of this proceedings can promote development of geology, resource sharing, flexibility and high efficiency. Thereby, promote scientific information interchange between scholars from top universities, research centers and high-tech enterprises working all around the world.

Ocean Noise and Marine Mammals

Ocean Noise and Marine Mammals Book
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
Publisher : National Academies Press
Release : 2003-06-22
ISBN : 0309085365
Language : En, Es, Fr & De

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Book Description :

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.

Advanced Materials

Advanced Materials Book
Author : Shun-Hsyung Chang,Ivan A. Parinov,Vitaly Yu. Topolov
Publisher : Springer Science & Business Media
Release : 2014-03-25
ISBN : 3319037498
Language : En, Es, Fr & De

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Book Description :

Advanced materials are the basis of modern science and technology. This proceedings volume presents a broad spectrum of studies of novel materials covering their processing techniques, physics, mechanics, and applications. The book is concentrated on nanostructures, ferroelectric crystals, materials and composites, materials for solar cells and also polymeric composites. Nanotechnology approaches, modern piezoelectric techniques and also latest achievements in materials science, condensed matter physics, mechanics of deformable solids and numerical methods are presented. Great attention is devoted to novel devices with high accuracy, longevity and extended possibilities to work in wide temperature and pressure ranges, aggressive media etc. The characteristics of materials and composites with improved properties opening new possibilities of various physical processes, in particular transmission and receipt of signals under water, are described.

Seventy Years of Exploration in Oceanography

Seventy Years of Exploration in Oceanography Book
Author : Klaus Hasselmann
Publisher : Springer Science & Business Media
Release : 2010-04-08
ISBN : 3642120873
Language : En, Es, Fr & De

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Book Description :

It all began with Markus Jochum approaching one of us (HvS) – “when you guys are doing interviews with senior scientists from oceanography and related sciences, why are you not doing Walter Munk?” Indeed, why not? Walter Munk, an icon in oceanography, had just given a wonderful talk in a symposium in honor of his 90th birthday, sweeping a grand circle from his earliest work with Chip Cox on airborne measurements of ocean surface roughness to the latest satellite data – not simply a review, but the struggle of an active scientist opening up new perspectives – as inspiring and stimulating as when one of us (KH) rst met him at the Ocean Waves Conference in Easton in 1961 (Fig. I. 1). Walter immediately agreed to share with us his recollections on the nearly seventy years of his path-breaking contributions in a sheer amazing range of topics, from ocean waves, internal waves, ocean currents, tides, tsunamis, sea level, microseisms and the rotation of the earth to ocean acoustic tomography. With “you guys” Markus was referring to HvS and the various partners HvS had 1 invited to join him in conducting a series of interviews of retired colleagues.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports Book
Author : Anonim
Publisher : Unknown
Release : 1995
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.