Propagation of Sound in the Ocean
Author : John Lamar Worzel
Publisher : Geological Society of America
Page : 256 pages
File Size : 43,19 MB
Release : 1948
Category : Deep-sea sounding
ISBN : 0813710278
Author : John Lamar Worzel
Publisher : Geological Society of America
Page : 256 pages
File Size : 43,19 MB
Release : 1948
Category : Deep-sea sounding
ISBN : 0813710278
Author : Chaim Leib Pekeris
Publisher :
Page : 434 pages
File Size : 35,26 MB
Release : 1945
Category : Explosions
ISBN :
Author : L. Brekhovskikh
Publisher : Springer Science & Business Media
Page : 262 pages
File Size : 24,5 MB
Release : 2013-03-14
Category : Science
ISBN : 3662023423
The continents of our planet have already been exploited to a great extent. Therefore man is turning his sight to the vast spaciousness of the ocean whose resources - mineral, biological, energetic, and others - are just beginning to be used. The ocean is being intensively studied. Our notions about the dynam ics of ocean waters and their role in forming the Earth's climate as well as about the structure of the ocean bottom have substantially changed during the last two decades. An outstanding part in this accelerated exploration of the ocean is played by ocean acoustics. Only sound waves can propagate in water over large distances. Practically all kinds of telemetry, communication, location, and re mote sensing of water masses and the ocean bottom use sound waves. Propa gating over thousands of kilometers in the ocean, they bring information on earthquakes, eruptions of volcanoes, and distant storms. Projects using acoustical tomography systems for exploration of the ocean are presently be ing developed. Each of these systems will allow us to determine the three-di mensional structure of water masses in regions as large as millions of square kilometers.
Author : National Research Council
Publisher : National Academies Press
Page : 220 pages
File Size : 10,58 MB
Release : 2003-05-22
Category : Science
ISBN : 0309133157
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.
Author : Robert J. Urick
Publisher :
Page : 268 pages
File Size : 50,2 MB
Release : 1979
Category : Sound
ISBN :
Author : Herman Medwin
Publisher : Cambridge University Press
Page : 682 pages
File Size : 17,11 MB
Release : 2005-07-21
Category : Science
ISBN : 9780521829502
Publisher Description
Author : Roger Dashen
Publisher : Cambridge University Press
Page : 328 pages
File Size : 12,63 MB
Release : 2010-06-10
Category : Mathematics
ISBN : 9780521142458
This 1979 book attempts to connect the known structure of the ocean volume with experimental results in long-range sound transmission through the theory of wave propagation and the path-integral approach. The book is written at the post-graduate level, but has been carefully organised to give experimenters a grasp of important results without undue mathematics.
Author : Thomas Rossing
Publisher : Springer Science & Business Media
Page : 1179 pages
File Size : 19,6 MB
Release : 2007-06-21
Category : Science
ISBN : 0387304460
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.
Author : Paul C. Etter
Publisher : CRC Press
Page : 521 pages
File Size : 31,63 MB
Release : 2017-12-19
Category : Technology & Engineering
ISBN : 1466564946
Underwater Acoustic Modeling and Simulation, Fourth Edition continues to provide the most authoritative overview of currently available propagation, noise, reverberation, and sonar-performance models. This fourth edition of a bestseller discusses the fundamental processes involved in simulating the performance of underwater acoustic systems and emphasizes the importance of applying the proper modeling resources to simulate the behavior of sound in virtual ocean environments. New to the Fourth Edition Extensive new material that addresses recent advances in inverse techniques and marine-mammal protection Problem sets in each chapter Updated and expanded inventories of available models Designed for readers with an understanding of underwater acoustics but who are unfamiliar with the various aspects of modeling, the book includes sufficient mathematical derivations to demonstrate model formulations and provides guidelines for selecting and using the models. Examples of each type of model illustrate model formulations, model assumptions, and algorithm efficiency. Simulation case studies are also included to demonstrate practical applications. Providing a thorough source of information on modeling resources, this book examines the translation of our physical understanding of sound in the sea into mathematical models that simulate acoustic propagation, noise, and reverberation in the ocean. The text shows how these models are used to predict and diagnose the performance of complex sonar systems operating in the undersea environment.
Author : Ding Lee
Publisher : World Scientific
Page : 224 pages
File Size : 18,80 MB
Release : 1995
Category : Science
ISBN : 9789810223038
This book introduces a comprehensive mathematical formulation of the three-dimensional ocean acoustic propagation problem by means of functional and operator splitting techniques in conjunction with rational function approximations. It presents various numerical solutions of the model equation such as finite difference, alternating direction and preconditioning. The detailed analysis of the concept of 3D, N x 2D and 2D problems is very useful not only mathematically and physically, but also computationally. The inclusion of a complete detailed listing of proven computer codes which have been in use by a number of universities and research organizations worldwide makes this book a valuable reference source. Advanced knowledge of numerical methods, applied mathematics and ocean acoustics is not required to understand this book. It is oriented toward graduate students and research scientists to use for research and application purposes.