Investigation of Ocean Acoustics Using Autonomous Instrumentation to Quantify the Water-sediment Boundary Properties

Investigation of Ocean Acoustics Using Autonomous Instrumentation to Quantify the Water-sediment Boundary Properties PDF Author: Jason David Holmes
Publisher:
ISBN:
Category : Marine sediments
Languages : en
Pages : 630

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Investigation of Ocean Acoustics Using Autonomous Instrumentation to Quantify the Water-sediment Boundary Properties

Investigation of Ocean Acoustics Using Autonomous Instrumentation to Quantify the Water-sediment Boundary Properties PDF Author: Jason David Holmes
Publisher:
ISBN:
Category : Marine sediments
Languages : en
Pages : 630

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Book Description


The Journal of the Acoustical Society of America

The Journal of the Acoustical Society of America PDF Author: Acoustical Society of America
Publisher:
ISBN:
Category : Acoustical engineering
Languages : en
Pages : 988

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Bottom-Interacting Ocean Acoustics

Bottom-Interacting Ocean Acoustics PDF Author: William A. Kuperman
Publisher: Springer Science & Business Media
ISBN: 1468490516
Category : Science
Languages : en
Pages : 700

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Book Description
vi These categories seem to represent the basic breakdown by field of present-day research in this area. Though each paper has been classified into one of these categories (for conference organization purpose), many papers overlapped two or three areas. It is also interesting to note that not only are scientific results being communicated, but the latest techniques and the state-of-the-art tools of the trade (existing and in development) are also being presented. The forty-six papers presented at this conference represent the work of seventy scientists working at universities, government laboratories, and industrial laboratories in seven different countries . We would like to thank the contributors for their efforts and especially for their promptness in providing the editors with their final manuscripts. William A. Kuperman Finn B. Jensen La Spezia, Italy July 1980 CONTENTS GEOACOUSTIC PROPERTIES OF MARINE SEDIMENTS Attenuation of Sound in Marine Sediments . • 1 J. M. Hovem Directivity and Radiation Impedance of a Transducer 15 Embedded in a Lossy Medium . •• •••••• G. H. Ziehm Elastic Properties Related to Depth of Burial, Strontium Content and Age, and Diagenetic Stage in Pelagic Carbonate Sediments . . • • . • • • . 41 M. H. Manghnani, S. O. Schianger, and P. D. Milholland Application of Geophysical Methods 'and Equipment to Explore the Sea Bottom . •• •••. • 53 H. F. Weichart The Acoustic Response of Some Gas-Charged Sediments in the Northern Adriatic Sea • • • • . • • • • 73 A.

Dissertation Abstracts International

Dissertation Abstracts International PDF Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 846

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Springer Handbook of Acoustics

Springer Handbook of Acoustics PDF Author: Thomas Rossing
Publisher: Springer Science & Business Media
ISBN: 0387304460
Category : Science
Languages : en
Pages : 1179

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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.

Acoustic Sensing Techniques for the Shallow Water Environment

Acoustic Sensing Techniques for the Shallow Water Environment PDF Author: Andrea Caiti
Publisher: Springer
ISBN: 9789402404616
Category : Science
Languages : en
Pages : 332

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Book Description
Thisvolume contains thecollection of papers from the second workshop on Expe- mental Acoustic Inversion Techniques for Exploration of theShallow Water Environment. Theworkshopthemefollowedtheoriginalconceptofthe rstworkshop, heldinCarvoeiro, Portugal, in 1999, i.e., to focus on experiments and experimental techniques for acoustic sensing in the shallow ocean. More than forty leading international scientists were invited to meet in the picturesque town of St. Angelo on the island of Ischia, in June 2004, to discuss progress in the application of new experimental techniques for exploration and assessment of shallowwater environments. Acoustic techniques provide the most effective means for remote sensing of ocean and sea oor processes, and for probing the structure beneath the sea oor. No other energy propagates as ef ciently in the ocean: radio waves and visible light are severely limited in range because the ocean is a highly conductive medium. However, sound from bre- ing waves and coastal shipping can be heard throughout the ocean, and marine mammals communicate acoustically over basin scale distances.

Ocean Acoustics

Ocean Acoustics PDF Author: Norman Bleistein
Publisher: Springer
ISBN:
Category : Science
Languages : en
Pages : 308

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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 giṽn 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.

Advances in Ocean Acoustics

Advances in Ocean Acoustics PDF Author: Ji-Xun Zhou
Publisher: American Institute of Physics
ISBN: 9780735411074
Category : Science
Languages : en
Pages : 0

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Book Description
Undersea acoustic applications to detect, communicate, navigate, monitor and measure within the ocean, are dependent upon a good physical understanding of sound production, propagation, and scattering in the ocean environment. This proceedings volume provides interesting new research results in ocean acoustics and includes two-to-three decade reviews of progress in different topics in ocean acoustics, including computational acoustics, shallow-water acoustics, seafloor and sediment acoustics, boundary scattering and reverberation, ocean ambient noise, geoacoustic inversion, marine bioacoustics, arctic acoustics, signal processing, underwater acoustic communication, and underwater sound projectors.

Government Reports Announcements & Index

Government Reports Announcements & Index PDF Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 608

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Estuarine and Coastal Hydrography and Sediment Transport

Estuarine and Coastal Hydrography and Sediment Transport PDF Author: R. J. Uncles
Publisher: Cambridge University Press
ISBN: 1107040981
Category : Nature
Languages : en
Pages : 363

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Book Description
A practical guide to the latest techniques to measure sediments, seabed, water and transport mechanisms in estuaries and coastal waters. Covering a broad range of topics, enough background is included to explain how each technology functions. A review of recent fieldwork experiments demonstrates how modern methods apply in real-life scenarios.