Sources Of Ambient Noise In The Ocean

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Ocean Noise and Marine Mammals

Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309133157
Total Pages : 220 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Ocean Noise and Marine Mammals by : National Research Council

Download or read book Ocean Noise and Marine Mammals written by National Research Council and published by National Academies Press. This book was released on 2003-05-22 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Ambient Noise in the Sea

Author : Robert J. Urick
Publisher :
ISBN 13 :
Total Pages : 212 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Ambient Noise in the Sea by : Robert J. Urick

Download or read book Ambient Noise in the Sea written by Robert J. Urick and published by . This book was released on 1984 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Ocean Ambient Noise

Author : William M. Carey
Publisher : Springer Science & Business Media
ISBN 13 : 1441978321
Total Pages : 266 pages
Book Rating : 4.4/5 (419 download)

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Book Synopsis Ocean Ambient Noise by : William M. Carey

Download or read book Ocean Ambient Noise written by William M. Carey and published by Springer Science & Business Media. This book was released on 2011-03-23 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph develops the theory of noise mechanisms and measurements, and describes general noise characteristics and computational methods. The vast ambient noise literature is concisely summarized using theory combined with key representative results. The air sea boundary interaction zone is described in terms of nondimensional variables requisite for future experiments. Noise field coherency, rare directional measurements, and unique basin scale computations and methods are presented. The use of satellite measurements in these basin scale models is demonstrated. A series of appendices provides in-depth mathematical treatments which will be of interest to graduate students and active researchers.

Sources of ambient noise in the ocean

Author : Hugh Charles Pumphrey
Publisher :
ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.:/5 (257 download)

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Book Synopsis Sources of ambient noise in the ocean by : Hugh Charles Pumphrey

Download or read book Sources of ambient noise in the ocean written by Hugh Charles Pumphrey and published by . This book was released on 1991 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Ocean Noise and Marine Mammals

Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309085365
Total Pages : 221 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Ocean Noise and Marine Mammals by : National Research Council

Download or read book Ocean Noise and Marine Mammals written by National Research Council and published by National Academies Press. This book was released on 2003-06-22 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Ambient Noise in the Sea

Author : Robert J. Urick
Publisher :
ISBN 13 :
Total Pages : 216 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Ambient Noise in the Sea by : Robert J. Urick

Download or read book Ambient Noise in the Sea written by Robert J. Urick and published by . This book was released on 1986 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ambient noise may be loosely said to be unwanted sound emanating from the sea itself. Its constituents typically come from a variety of somewhat diffusely combined sources: pressure changes and hydrostatic effects of tides and waves, oceanic turbulence, seismic disturbances, distant ship traffic, wind, rainfall, collapse of bubbles created by wave action, thermal agitation, marine animals and biological activity, breaking ice, and man-made noise such as distant oil rigs. Depending on locations in the ocean space, the times of day, season and year, and the happenstance of events and nature, the aforecited sources may or may not be contribute to the totality of ambient noise at any given time and place; and it may or may not exist as broad or narrow bands of energy in different regions of the frequency spectrum. More exactly defined, ambient noise is that part of the total noise background observed by an omnidirectional hydrophone in the sea which is: (1) not due to the hydrophone system's self-noise such as the noise of current flow around the measurement hydrophone and all forms of electrical noise; ambient noise is independent of the means used to observe it; and (2) not due to other identifiable localized sources of noise. Ambient noise is what is "left over" after all identifiable noise sources are accounted for. Ambient noise is an especially important consideration in detecting and identifying targets - be the targets submarines, underwater vehicles, floating mines, or fish-- in relatively quiet ocean environments and situations. In the case of active sonar, ambient noise typically becomes the dominant background against which the sonar receiver is trying to detect, and possibly identify, targets in the ocean space (not addressing search of the ocean floor) when it is greater than self noise and after the relatively loud reverberation noise created by the active sonar pings has died down in the sonar cycle. In the case of passive sonar, after taking into account self noise and possible extraneous noise from identifiable sources, ambient noise is the background against which the sonar receiver seeks to detect and identify targets. This book, AMBIENT NOISE IN THE SEA by Robert Urick, summarizes the main features of the ambient noise and gives the reader an easy to read, understandable entry in to its unclassified literature. This book is a must for engineers in the fields of active and passive sonars, underwater sensor and weapons systems, and underwater signal processing.

Natural Physical Sources of Underwater Sound

Author : B.R. Kerman
Publisher : Springer Science & Business Media
ISBN 13 : 9401116261
Total Pages : 750 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Natural Physical Sources of Underwater Sound by : B.R. Kerman

Download or read book Natural Physical Sources of Underwater Sound written by B.R. Kerman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt: To place this book in perspective it is useful for the reader to be aware of the recent history of the topic of underwater sound generation at the ocean surface by natural mechanisms. A meeting in Lerici, Italy in 1987 was convened within the NATO Advanced Research Workshop series, to bring together underwater acousticians and ocean hydrodynamicists to examine various mechanisms which generate sound naturally at the ocean surface. A record of that meeting was published in the NATO scientific publication series in 1988 under the title 'Sea Surface Sound'. That meeting was successful in inspiring and co ordinating both participants and non-attending colleagues to examine some key issues which were raised during the course of presentations and discussions. The understanding among those present was that another meeting should be convened 3 years hence to report and review progress in the subject. Accordingly the second conference was convened in Cambridge in 1990, whose proceedings are presented here. This volume represents a very gratifying increase in only a 3 year interval in our understanding of a number of physical processes which generate sound at the peripheries of oceans. In fact it represents both the acceleration of singular effort as well as the development of interdisciplinary sophistication and co-operation. The enthusiasm, goodwill, and intense scientific curiosity which characterized the Lerici meeting carried through to Cambridge. The collegial atmosphere established by the participants was perfectly timed to foster another major advance in studies of ocean surface sound.

Marine Mammals and Noise

Author : W. John Richardson
Publisher : Academic Press
ISBN 13 : 0080573037
Total Pages : 593 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Marine Mammals and Noise by : W. John Richardson

Download or read book Marine Mammals and Noise written by W. John Richardson and published by Academic Press. This book was released on 2013-10-22 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many marine mammals communicate by emitting sounds that pass through water. Such sounds can be received across great distances and can influence the behavior of these undersea creatures. In the past few decades, the oceans have become increasingly noisy, as underwater sounds from propellers, sonars, and other human activities make it difficult for marine mammals to communicate. This book discusses, among many other topics, just how well marine mammals hear, how noisy the oceans have become, and what effects these new sounds have on marine mammals. The baseline of ambient noise, the sounds produced by machines and mammals, the sensitivity of marine mammal hearing, and the reactions of marine mammals are also examined. An essential addition to any marine biologist's library, Marine Mammals and Noise will be especially appealing to marine mammalogists, researchers, policy makers and regulators, and marine biologists and oceanographers using sound in their research.

Sea Surface Sound

Author : B.R. Kerman
Publisher : Springer Science & Business Media
ISBN 13 : 9400930178
Total Pages : 629 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Sea Surface Sound by : B.R. Kerman

Download or read book Sea Surface Sound written by B.R. Kerman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 629 pages. Available in PDF, EPUB and Kindle. Book excerpt: In its relentless pursuit of further knowledge, science tends to compartmentalize. Over the years the pursuit of What might be called geophysical acoustics of the sea-surface has languished. This has occured even through there are well-developed and active research programs in underwater acoustics, ocean hydrodynamics, cloud and precipitation physics, and ice mechanics - to name a few - as well as a history of engineering expertise built on these scientific fields. It remained to create a convergence, a dialogue across disciplines, of mutual benefit. The central theme of the Lerici workshop, perhaps overly simplified, was 'What are the mechanisms causing ambient noise at the upper surface of the ocean?' What could hydrodynamicists contribute to a better understanding of breaking wave dynamics, bubble production, ocean wave dynamics, or near-surface turbulence for the benefit of the underwater acoustics community? What further insights could fluid dynamicists gain by including acoustic measurements in their repertoire of instrumentation? While every attendee will have his or her percep tions of details, it was universally agreed that a valuable step had been taken to bring together two mature disciplines and that significant co-operative studies would undoubtedly follow. The scope of the workshop was enlarged beyond its original intent to also include the question of ice-noise generation. The success of this decision can be seen in high quality of the presentations. the contribution of its disciples in the other workshop discussions and the heightened awareness and interest of we other novices.

Effects of Noise on Marine Mammals

Author : William John Richardson
Publisher :
ISBN 13 :
Total Pages : 488 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Effects of Noise on Marine Mammals by : William John Richardson

Download or read book Effects of Noise on Marine Mammals written by William John Richardson and published by . This book was released on 1991 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Seismic Ambient Noise

Author : Nori Nakata
Publisher : Cambridge University Press
ISBN 13 : 1108417086
Total Pages : 373 pages
Book Rating : 4.1/5 (84 download)

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Book Synopsis Seismic Ambient Noise by : Nori Nakata

Download or read book Seismic Ambient Noise written by Nori Nakata and published by Cambridge University Press. This book was released on 2019-03-21 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of seismic ambient noise, covering observations, physical origins, modelling, processing methods and applications in imaging and monitoring.

Effects of Anthropogenic Noise on Animals

Author : Hans Slabbekoorn
Publisher : Springer
ISBN 13 : 1493985744
Total Pages : 322 pages
Book Rating : 4.4/5 (939 download)

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Book Synopsis Effects of Anthropogenic Noise on Animals by : Hans Slabbekoorn

Download or read book Effects of Anthropogenic Noise on Animals written by Hans Slabbekoorn and published by Springer. This book was released on 2018-08-20 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past several years, many investigators interested in the effects of man-made sounds on animals have come to realize that there is much to gain from studying the broader literature on hearing sound and the effects of sound as well as data from the effects on humans. It has also become clear that knowledge of the effects of sound on one group of animals (e.g., birds or frogs) can guide studies on other groups (e.g., marine mammals or fishes) and that a review of all such studies together would be very useful to get a better understanding of the general principles and underlying cochlear and cognitive mechanisms that explain damage, disturbance, and deterrence across taxa. The purpose of this volume, then, is to provide a comprehensive review of the effects of man-made sounds on animals, with the goal of fulfilling two major needs. First, it was thought to be important to bring together data on sound and bioacoustics that have implications across all taxa (including humans) so that such information is generally available to the community of scholars interested in the effects of sound. This is done in Chaps. 2-5. Second, in Chaps. 6-10, the volume brings together what is known about the effects of sound on diverse vertebrate taxa so that investigators with interests in specific groups can learn from the data and experimental approaches from other species. Put another way, having an overview of the similarities and discrepancies among various animal groups and insight into the “how and why” will benefit the overall conceptual understanding, applications in society, and all future research.

Mechanics of Underwater Noise

Author : Donald Ross
Publisher : Elsevier
ISBN 13 : 1483160467
Total Pages : 390 pages
Book Rating : 4.4/5 (831 download)

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Book Synopsis Mechanics of Underwater Noise by : Donald Ross

Download or read book Mechanics of Underwater Noise written by Donald Ross and published by Elsevier. This book was released on 2013-10-22 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanics of Underwater Noise elucidates the basic mechanisms by which noise is generated, transmitted by structures and radiated into the sea. Organized into 10 chapters, this book begins with a description of noise, decibels and levels, significance of spectra, and passive sonar equation. Subsequent chapters discuss sound waves in liquids; acoustic radiation fundamentals; wind-generated ocean ambient noise; vibration isolation and structural damping; and radiation by plate flexural vibrations. Other chapters address cavitation, propeller cavitation noise, radiation by fluctuating-force (dipole) sources, and mechanical noise sources. This book will be helpful as a self-education text and as a reference for workers in the field.

Properties of Low Frequency Underwater Ambient Noise in the Ocean Sound Channel

Author : Stephen Nichols
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (1 download)

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Book Synopsis Properties of Low Frequency Underwater Ambient Noise in the Ocean Sound Channel by : Stephen Nichols

Download or read book Properties of Low Frequency Underwater Ambient Noise in the Ocean Sound Channel written by Stephen Nichols and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In the ocean sound channel, where sounds are known to propagate great distances, the ambient noise field is a dynamic mixture of many distinct noise sources. This work is focused on identifying predictable properties of the low frequency (

Low-Frequency Sound and Marine Mammals

Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309050251
Total Pages : 91 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Low-Frequency Sound and Marine Mammals by : National Research Council

Download or read book Low-Frequency Sound and Marine Mammals written by National Research Council and published by National Academies Press. This book was released on 1994-02-01 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume reviews the current state of knowledge regarding the effects of low-frequency sound on marine mammals and makes recommendations for research. In addition, the book describes current federal regulations prescribed under the Marine Mammal Protection Act that govern the taking of marine mammals by scientific research activities, and it recommends changes to expedite the regulatory process dealing with scientific research activities.

International Regulation of Underwater Sound

Author : Elena McCarthy
Publisher : Springer Science & Business Media
ISBN 13 : 1402080786
Total Pages : 295 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis International Regulation of Underwater Sound by : Elena McCarthy

Download or read book International Regulation of Underwater Sound written by Elena McCarthy and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerous incidents suggest that man-made sound injures and can kill marine mammals. This book offers an objective look at how ocean noise should be addressed given the lack of regulatory structure and the scientific uncertainty over the effects of noise on marine life. It is an essential text for policymakers, governments and NGOs, biologists, environmental activists, , oceanographers, and those in the shipping, engineering, and offshore oil and gas industries.

Ecoacoustics

Author : Almo Farina
Publisher : John Wiley & Sons
ISBN 13 : 1119230691
Total Pages : 367 pages
Book Rating : 4.1/5 (192 download)

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Book Synopsis Ecoacoustics by : Almo Farina

Download or read book Ecoacoustics written by Almo Farina and published by John Wiley & Sons. This book was released on 2017-07-24 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sounds produced by geophonic, biophonic and technophonic sources are relevant to the function of natural and human modified ecosystems. Passive recording is one of the most non-invasive technologies as its use avoids human intrusion during acoustic surveys and facilitates the accumulation of huge amounts of acoustical data. For the first time, this book collates and reviews the science behind ecoaucostics; illustrating the principles, methods and applications of this exciting new field. Topics covered in this comprehensive volume include; the assessment of biodiversity based on sounds emanating from a variety of environments the best technologies and methods necessary to investigate environmental sounds implications for climate change and urban systems the relationship between landscape ecology and ecoacoustics the conservation of soundscapes and the social value of ecoacoustics areas of potential future research. An invaluable resource for scholars, researchers and students, Ecoacoustics: The Ecological Role of Sounds provides an unrivalled set of ideas, tools and references based on the current state of the field.