Physics Of Sound In Marine Sediments
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Physics Of Sound In Marine Sediments
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Author : Lloyd Hampton
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
Physics Of Sound In Marine Sediments written by Lloyd Hampton and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-09 with Science categories.
The phenomenon of sound transmissions through marine sediments is of extreme interest to both the United States civilian and Navy research communities. Both communities have conducted research within the field of this phenomenon approaching it from different perspectives. The academic research community has approached it as a technique for studying sedimentary and crustal structures of the ocean basins. The Navy research community has approached it as an additional variable in the predictability of sound trans mission through oceanic waters. In order to join these diverse talents, with the principal aim of bringing into sharp focus the state-of-the-science in the problems relating to the behavior of sound in marine sediments, the Office of Naval Research organized and sponsored an invited symposium on this subject. The papers published in this volume are the results of this symposium and mark the frontiers in the state-of-the-art. The symposia series were based on five research areas identified by ONR as being particularly suitable for critical review and for the appraisal of future research trends. These areas include: 1. Physics of Sound in Marine Sediments, 2. Physical and Engineering Properties of Deep-Sea Sediments, 3. The Role of Bottom Currents in Sea Floor Geological Processes, 4. Nephelometry and the Optical Properties of the Ocean I'laters, S. Natural Gases in Marine Sediments and Their Mode of Distribution. These five areas also form some of the research priorities of the ONR program in Marine Geology and Geophysics.
Physics Of Sound In Marine Sediments
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Author : Loyd E. Hampton
language : en
Publisher:
Release Date : 1974-06-01
Physics Of Sound In Marine Sediments written by Loyd E. Hampton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974-06-01 with categories.
Marine Acoustics
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Author : Jens Hovem
language : en
Publisher:
Release Date : 2010-05-01
Marine Acoustics written by Jens Hovem and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-05-01 with Science categories.
The purpose of this textbook is to provide instruction for undergraduate and graduate students in the theory and practice of underwater acoustic sonar systems. The first third of the book introduces the basics of sonar theory. The middle section of the book describes the applied technology of sonars. The final third of the book extends the discussions of earlier chapters, going into details of theory of non-linear acoustics, reflection and scattering, acoustic and elastic waves in solid media, marine sediments.
Sediment Acoustics
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Author : Robert D. Stoll
language : en
Publisher: Springer
Release Date : 2013-07-20
Sediment Acoustics written by Robert D. Stoll and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-07-20 with Science categories.
Sediment Acoustics describes the development of a mathematical model to be used to predict the propagation characteristics of acoustic waves in marine sediments. The model is based on the classical theory of Maurice Biot. Over the past 20 years, R.D. Stoll has published many technical papers covering various stages of development and different applications of Biot's theory. This work is summarized in one reference volume for the first time and presents enough introductory material so that researchers and students may use the model without extensive literature searches. Scientists working in the areas of acoustical oceanography, marine seismology, and ocean engineering will find this monograph useful in predicting the wave velocity and attenuation of seafloor sediments based on the geology of an area and such measurable physical properties as porosity and geostatic stress. A simple, interactive computer program is given as an aid in calculating velocity and attenuation, and a number of examples from recent field experiments are presented so that the predictions of the model may be compared with the "ground truth."
Deep Sea Sediments
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Author : Anton Inderbitzen
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-08
Deep Sea Sediments written by Anton Inderbitzen and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-08 with Science categories.
As part of its continuing program to stimulate superior basic research in the marine environment, the Office of Naval Research, Ocean Science and Technology Division, sponsored a series of closed seminar-workshops in 1972-1973. Each seminar focused upon one re search area of marine geology which is relatively new and in need of a critical evaluation and accelerated support. The subjects areas chosen for the seminars were: 1. natural gases in marine sediments and their mode of distribution, 2. nephelometry and the optical properties of ocean waters, 3. physical and engineering properties of deep-sea sediments, and 4. physics of sound in marine sediments. The objectives of each seminar-workshop were to bring into sharper focus the state-of-the-science within each subject area, to effect some degree of coordination among the investigators working within each of these areas and to provide the Ocean Science and Technology Division guidance for national program support. This volume.contains most of the papers presented at the semi nar on the physical and engineering properties of deep-sea sediments. The seminar was held at Airlie House, Airlie, Virginia on April 24- 27, 1973 and was organized and chaired by A. Inderbitzen. The at tendees were invited from among the leading investigators in this field from both the engineering and scientific disciplines. Each attendee was requested to prepare a paper within his area of spe ciality.
Sound Velocity Elasticity And Related Properties Of Marine Sediments North Pacific
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Author : Edwin Lee Hamilton
language : en
Publisher:
Release Date : 1969
Sound Velocity Elasticity And Related Properties Of Marine Sediments North Pacific written by Edwin Lee Hamilton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Marine sediments categories.
Acoustic And Related Properties Of The Sea Floor
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Author : Edwin Lee Hamilton
language : en
Publisher:
Release Date : 1975
Acoustic And Related Properties Of The Sea Floor written by Edwin Lee Hamilton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Marine sediments categories.
The general objectives of this investigation were to determine and study those characteristics of the sea floor that affect sound propagation and the prediction of sonar performance; to support underwater acoustics' experiments and theory by furnishing information on the mass physical properties of sediments and rocks in the form of geoacoustic models of the sea floor; and to develop models of the sea floor which include gradients of sound velocity and attenuation, density, and elastic properties. Specifically, the minor objectives were to revise and review earlier work on the relations between frequency and attenuation of compressional (sound) waves in marine sediments and on the relations between attenuation and sediment porosity. The major objectives were to determine and predict variations of the attenuation of sound waves with depth in the sea floor.
Acoustic Relaxation In Unconsolidated Marine Sediments
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Author : L. R. B. Duykers
language : en
Publisher:
Release Date : 1971
Acoustic Relaxation In Unconsolidated Marine Sediments written by L. R. B. Duykers and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Marine sediments categories.
Acoustic relaxation theory for visco-elastic media provides for sound propagation in unconsolidated marine sediments. For the frequency range of 14 to 200 kHz, dispersion for compressional-wave and shear-wave velocity is negligible for all practical purposes, but sound absorption shows significant changes. (Author).
Sediment Acoustics
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Author :
language : en
Publisher:
Release Date : 2001
Sediment Acoustics written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
This grant has funded work aimed primarily at developing a mathematical model to describe geoacoustic and seismic wave propagation in ocean sediments based on the knowledge of certain primitive variables such as porosity and grain-size distribution. The model is based on the classical Biot theory extended to take into account various mechanisms of energy loss that are known to be important in marine sediments. After the initial development of the model a variety of field and lab experiments have been carried out to verify its predictions and help in the choice of various input parameters that are required.
Acoustics Of The Seabed As A Poroelastic Medium
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Author : Nicholas P. Chotiros
language : en
Publisher: Springer
Release Date : 2017-03-20
Acoustics Of The Seabed As A Poroelastic Medium written by Nicholas P. Chotiros and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-20 with Science categories.
This book presents a concise description of the acoustics of ocean sediment acoustics, including the latest developments that address the discrepancies between theoretical models and experimental measurements. This work should be of interest to ocean acoustic engineers and physicists, as well as graduate students and course instructors. The seabed is neither a liquid nor a solid, but a fluid saturated porous material that obeys the wave equations of a poroelastic medium, which are significantly more complicated than the equations of either a liquid or a solid. This volume presents a model of seabed acoustics with input parameters that allow the model to cover a wide range of sediment types. The author includes example reflection and transmission curves which may be used as typical for a range of sediment types. The contents of this book will allow the reader to understand the physical processes involved in the reflection, propagation, and attenuation of sound and shear waves in ocean sediments and to model the acoustic properties for a wide range of applications.