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Thursday, July 16, 2020 | History

1 edition of Ocean Variability & Acoustic Propagation found in the catalog.

Ocean Variability & Acoustic Propagation

by John Potter

  • 367 Want to read
  • 17 Currently reading

Published by Springer Netherlands, Imprint, Springer in Dordrecht .
Written in English


Edition Notes

Other titlesProceedings of the Workshop held in La Spezia, Italy, June 4-8, 1990
Statementedited by John Potter, Alex Warn-Varnas
ContributionsWarn-Varnas, Alex
The Physical Object
Format[electronic resource] /
Pagination1 online resource (620 pages)
Number of Pages620
ID Numbers
Open LibraryOL27078317M
ISBN 109401133123
ISBN 109789401133128
OCLC/WorldCa840309800

The long-term objective is to develop knowledge of factors controlling the mean and the variability of acoustic fields in the shallow ocean environment, in the frequency band 50 Hz to Hz. Propagation variability is an inescapable complicating factor for both active and passive sonar systems, and for underwater acoustic communications. Ocean Variability Effects on High-Frequency Acoustic Propagation in KauaiEx Mohsen Badiey1, Stephen E. Forsythe2, Michael B. Porter3, and the KauaiEx Group 1College of Marine Studies, University of Delaware, Newark, DE 2Naval Undersea Warfare Center, Newport, RI, 3Science Applications International, San Diego, CA Abstract.

An illustration of an open book. Books. An illustration of two cells of a film strip. Video An illustration of an audio speaker. Acoustic Propagation and Ocean Tomography by Defense Technical Information Center. Publication date Topics relate the temporal and spatial variability of the acoustic propagation with the ocean.   During the Kauai experiment in summer of a bottom‐mounted vertical line array containing 8 hydrophones spaced meter apart was deployed in a ‐m shallow water region near the Pacific Missile Range Facility. The acoustic source was placed about 2 km away on a flat sea bottom at 95 meter water depth. The element spacing was sufficiently small to .

Among the literature on acoustics the book of Pierce [] is an excellent introduction available for a low price from the Acoustical Society of America. In the preparation of the lecture notes we consulted various books which cover different aspects of the problem [14, 16, 18, 37, 48, 70, 87, 93, 99, , , , , , , , ]. Mesoscale -- small scale oceanic variability effects on underwater acoustic signal propagation; E. Coelho. Spatial coherence of signals forward scattered from the sea surface in the East China Sea (Invited paper); P.H. Dahl. Variability in high frequency acoustic backscattering in the water column; A.C. Lavery, et al. Section 2: Seabed variability.


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Ocean Variability & Acoustic Propagation by John Potter Download PDF EPUB FB2

Buy Ocean Variability & Acoustic Propagation on FREE SHIPPING on qualified orders Ocean Variability & Acoustic Propagation: J. Potter, A. Warn-Varnas: : Books Skip to main content. Fifteen years ago NATO organised a conference entitled 'Ocean Acoustic Modelling'.

Many of its participants were again present at this variability workshop. Ocean Variability & Acoustic Propagation. Editors: Potter, J., Warn-Varnas, A.

(Eds.) Free Preview. Buy this book eB49 *immediately available upon purchase as print book shipments may be delayed due to the COVID crisis. ebook access is temporary and does not include ownership of the ebook.

Only valid for books with an ebook version. Get this from a library. Ocean variability & acoustic propagation. [John Potter; Alex Warn-Varnas; North Atlantic Treaty Organization.; United States. Office of Naval Research.; Centro ricerche energia ambiente Santa Teresa.;] -- The proceedings of the workshop held in La Spezia, Italy, Juneconsist of five parts reflecting the sessions held at the workshop:.

Get this from a Ocean Variability & Acoustic Propagation book. Ocean Variability & Acoustic Propagation. [John Potter; Alex Warn-Varnas] -- Fifteen years ago NATO organised a conference entitled 'Ocean Acoustic Modelling'.

Many of its participants were again present at this variability workshop. One such participant. in concluding his. Impulse response analysis of ocean acoustic propagation.- Dependence of near-surface acoustic scatter on wind speed.- Nonlinear effects in wind-wave generation.- Multichannel acoustic reflection profiling of ocean watermass temperature/salinity interfaces.- Acoustic variability due to internal waves and surface waves in shallow water P.F.

Worcester, in Encyclopedia of Ocean Sciences (Second Edition), Introduction. Ocean acoustic tomography is a method for acoustic remote sensing of the ocean interior that takes advantage of the facts that the propagation of sound through the ocean is sensitive to quantities of oceanographic interest, such as temperature and water velocity, and that the ocean is.

Ocean variability effects on sound propagation in shallow water Abstract: In May SACLANT Undersea Research Centre conducted an experiment south of the Island of Elba off the west cost of Italy to investigate the time variability of received broadband acoustic signals over a km fixed propagation path for 36 h.

Following an introduction on ocean variability, acoustic propagation, and coupled models, subsequent chapters present up-to-date coverage of the developing relationship between ocean science and ocean acoustics, including an extensive.

Following an introduction on ocean variability, acoustic propagation, and coupled models, subsequent chapters present up-to-date coverage of the developing relationship between ocean science and ocean acoustics, including an extensive review of state-of-the-art three-dimensional models.

show more. Variability, Coherence and Predictability of Shallow Water Acoustic Propagation in the Straits of Florida H. Deferrari, N. Williams, H.

Nguyen Pages   Be that as it may, with modern ocean acoustic observation capability, vast improvement to the AFAR and MATE results could be obtained and provide definitive tests for many of our ideas about ocean acoustic propagation.

The concluding remarks from Chapter 1 of the book summarize the state of affairs, as there is a lot of work still to be done. Sound propagation in the ocean is governed by the spatial structure of the sound speed and the sound speed in the ocean is a function of temperature, salinity, and ambient pressure.

Since the ambient pressure is a function of depth, it is customary to express the sound speed (c) in meters per second as an empirical function of temperature (T) in degrees celsius, salinity (S) in parts. Introduction to Propagation: Introduction to acoustic propagation theory and modeling in the ocean environment including selected experimental results and comparison to theory.

Various propagation theories and examples will be discussed including ray theory, mode theory, and the parabolic equation. modeling effects of ocean variability on. Book Review: Ocean variability and acoustic propagation. (Proceedings of a Workshop, La Spezia, Italy).

John Potter and Alex Warn-Varnas (Editors), Kluwer, Dordrecht, pp., Dfl (US$/£99) hardback, ISBN Sound Propagation through the Stochastic Ocean provides a comprehensive treatment of developments in the field of statistical ocean acoustics over the last 35 years.

This will be of fundamental interest to oceanographers, marine biologists, geophysicists, engineers, applied mathematicians, and physicists.

Temporal and spatial variability of sound propagation conditions at BIWF can be analyzed using the integrated acoustic and oceanographic model. Figures 3(a) and 3(b) show 3D propagation of Hz sound, one of the main pile-driving noise frequencies observed in the monitoring data, for two different seasonal (summer and winter) conditions.

BibTeX @INPROCEEDINGS{Badiey04oceanvariability, author = {Mohsen Badiey and Stephen E. Forsythe and Michael B. Porter}, title = {Ocean variability effects on high-frequency acoustic propagation}, booktitle = {in the Kauai Experiment,” Proceedings of High Frequency Ocean Acoustics conference, La Jolla, CA}, year = {}, pages = {}}.

The impact of short-term ocean variability on acoustic transmission loss (TL) is examined in the nature run of an observation system simulation experiment (OSSE) centered on the Okinawa Trough in the western North Pacific.

Range-dependent examinations of TL in the upper ocean show the impact of variability as it modifies the sonic layer depth and thickness of the surface.

Effect of interannual variability of temperature and salinity on acoustic propagation in the Philippine Sea and South China Sea is investigated using the Navy's climatological (T, S) dataset [i.e., Generalized Digital Environmental Model (GDEM)] and the Synoptic Monthly Gridded World Ocean Database (SMG-WOD) data from January to Decemberand an open source acoustic.

The Ocean Acoustics library contains acoustic modeling software and data. It is supported by the U.S. Office of Naval Research (Ocean Acoustics Program) as a means of publishing software of general use to the international ocean acoustics community.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.- Ivan Tolstoy - For innovative studies in oceanic, atmospheric and seismic wave propagation. - Homer P.

Bucker - For ground-breaking work integrating signal processing and acoustic modeling. - William A. Kuperman - For the development and application of models for ocean acoustic propagation and scattering.