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Coastal Acoustic Tomography

Coastal Acoustic Tomography
A Book

by Arata Kaneko,Xiao-Hua Zhu,Ju Lin

  • Publisher : Elsevier
  • Release : 2020-02-05
  • Pages : 362
  • ISBN : 0128189428
  • Language : En, Es, Fr & De
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Coastal Acoustic Tomography begins with the specifics required for designing a Coastal Acoustic Tomography (CAT) experiment and operating the CAT system in coastal seas. Following sections discuss the procedure for data analyses and various application examples of CAT to coastal/shallow seas (obtained in various locations). These sections are broken down into four kinds of methods: horizontal-slice inversion, vertical-slice inversion, modal expansion method and data assimilation. This book emphasizes how dynamic phenomena occurring in coastal/shallow seas can be analyzed using the standard method of inversion and data assimilation. The book is relevant for physical oceanographers, ocean environmentalists and ocean dynamists, focusing on the event being observed rather than the intrinsic details of observational processes. Application examples of successful dynamic phenomena measured by coastal acoustic tomography are also included. Provides the information needed for researchers and graduate students in physical oceanography, ocean-fluid dynamics and ocean environments to apply Ocean Acoustic Tomography (OAT) to their own fields Presents the benefits of using acoustic tomography, including less disturbance to aquatic environments vs. other monitoring methods Includes the assimilation of CAT data into a coastal sea circulation model, a powerful tool to predict coastal-sea environmental changes

Theoretical And Computational Acoustics 2001

Theoretical And Computational Acoustics 2001
A Book

by T F Gao,Qihu Li,Er-chang Shang

  • Publisher : World Scientific
  • Release : 2002-07-25
  • Pages : 692
  • ISBN : 981448847X
  • Language : En, Es, Fr & De
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This book contains 67 papers presented at ICTCA2001. It includes three keynote addresses surveying the frontier developments in computational and theoretical acoustics. The papers cover aero-, seismo- and ocean acoustics, as well as ultrasonics. Computational methods, numerical simulation, theoretical analysis and experimental results are emphasized by different papers.The proceedings have been selected for coverage in:Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings)

Theoretical and Computational Acoustics 2001

Theoretical and Computational Acoustics 2001
Beijing, China, 21-25 May 2001

by Er-Chang Shang,Qihu Li,T. F. Gao

  • Publisher : World Scientific
  • Release : 2002
  • Pages : 676
  • ISBN : 9812380124
  • Language : En, Es, Fr & De
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This book contains 67 papers presented at ICTCA2001. It includes three keynote addresses surveying the frontier developments in computational and theoretical acoustics. The papers cover aero-, seismo- and ocean acoustics, as well as ultrasonics. Computational methods, numerical simulation, theoretical analysis and experimental results are emphasized by different papers.

Full Field Inversion Methods in Ocean and Seismo-Acoustics

Full Field Inversion Methods in Ocean and Seismo-Acoustics
A Book

by Orest Diachok,Andrea Caiti,Peter Gerstoft,Henrik Schmidt

  • Publisher : Springer Science & Business Media
  • Release : 1995-05-31
  • Pages : 421
  • ISBN : 9780792334590
  • Language : En, Es, Fr & De
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Recent advances in the power of inversion methods, the accuracy of acoustic field prediction codes, and the speed of digital computers have made the full field inversion of ocean and seismic parameters on a large scale a practical possibility. These methods exploit amplitude and phase information detected on hydrophone/geophone arrays, thereby extending traditional inversion schemes based on time of flight measurements. Full field inversion methods provide environmental information by minimising the mismatch between measured and predicted acoustic fields through a global search of possible environmental parameters. Full Field Inversion Methods in Ocean and Seismo-Acoustics is the formal record of a conference held in Italy in June 1994, sponsored by NATO SACLANT Undersea Research Centre. It includes papers by NATO specialists and others. Topics covered include: · speed and accuracy of acoustic field prediction codes · signal processing strategies · global inversion algorithms · search spaces of environmental parameters · environmental stochastic limitations · special purpose computer architectures · measurement geometries · source and receiving sensor technologies.

Experimental Acoustic Inversion Methods for Exploration of the Shallow Water Environment

Experimental Acoustic Inversion Methods for Exploration of the Shallow Water Environment
A Book

by Andrea Caiti,Jean-Pierre Hermand,Sérgio Jesus,Michael Porter

  • Publisher : Springer Science & Business Media
  • Release : 2012-12-06
  • Pages : 293
  • ISBN : 9401141126
  • Language : En, Es, Fr & De
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In recent years, research on acoustic remote sensing of the ocean has evolved considerably, especially in studying complex physical and biological processes in shallow water environments. To review the state of the art, an international workshop was held at Carvoeiro, Portugal, in March 1999, bringing together leading international researchers in the field. In contrast to much of the recent theoretical work, emphasis was placed on the experimental validation of the techniques. This volume, based on presentations at this workshop, summarizes a range of diverse and innovative applications. The invited contributions explore the use of acoustics to measure bottom properties and morphology, as well as to probe buried objects within the sediment. Within the water column, sound is applied to imaging of oceanographic features such as currents and tides or monitoring of marine life. Another key theme is the use of sound to solve geometric inverse problems for precise tracking of undersea vehicles. Audience: This volume should be useful both to the novice seeking an introduction to the field and to advanced researchers interested in the latest developments in acoustic sensing of the ocean environment. The workshop was sponsored by the Fundação para a Ciêcia e a Tecnologia (Portuguese Foundation for Science and Technology).

Sounds in the Sea

Sounds in the Sea
From Ocean Acoustics to Acoustical Oceanography

by Herman Medwin

  • Publisher : Cambridge University Press
  • Release : 2005-07-21
  • Pages : 643
  • ISBN : 9780521829502
  • Language : En, Es, Fr & De
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Publisher Description

Izvestiya

Izvestiya
Atmospheric and oceanic physics

by Anonim

  • Publisher : Unknown Publisher
  • Release : 2005
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Oceans '98

Oceans '98
Conference Proceedings : 28 September-1 October, 1998, Nice, France, Acropoils Convention Center

by Anonim

  • Publisher : Unknown Publisher
  • Release : 1998
  • Pages : 1853
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Oceanic Abstracts

Oceanic Abstracts
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 1996-10
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Maritimes

Maritimes
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 1998
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Government Reports Annual Index

Government Reports Annual Index
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 1994
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Environmental and Coastal Hydraulics

Environmental and Coastal Hydraulics
Protecting the Aquatic Habitat : Proceedings of Theme B : the 27th Congress of the International Association for Hydraulic Research : San Francisco, California, August 10-15, 1997

by International Association for Hydraulic Research. Congress,S. Y. Wang,Torkild Johan Carstens

  • Publisher : Amer Society of Civil Engineers
  • Release : 1997
  • Pages : 1569
  • ISBN : 9780784402726
  • Language : En, Es, Fr & De
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This proceedings, Environmental and Coastal Hydraulics: Protecting the Aquatic Environment, contains papers presented at the 27th Congress of the International Association of Hydraulic Research (IAHR) entitled Water for a Changing Global Community. These two volumes cover topics ranging from basic research in fluid flow, mixing, sediment transport, turbulence, and interactions among flow, sediment, vegetation, and structures to applications in contaminant transport, coastal zone management, stream habitat restoration, water quality, waterway rehabilitation, and wetlands. In addition, research and engineering methodologies such as instrumentation, measurement, physical modeling, field monitoring, and computational modeling are discussed.

The Journal of the Acoustical Society of Japan (E).

The Journal of the Acoustical Society of Japan (E).
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 1998
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Contains English abstracts of original papers and letters to the editor that appear in the Japanese edition.

High Molecular Weight (HMW) Dissolved Organic Matter (DOM) in Seawater

High Molecular Weight (HMW) Dissolved Organic Matter (DOM) in Seawater
Chemical Structure, Sources and Cycling

by Lihini Indira Aluwihare

  • Publisher : Unknown Publisher
  • Release : 1999
  • Pages : 224
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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The goal of this thesis was to use high resolution analytical techniques coupled with molecular level analyses to chemically characterize high molecular weight (> 1 k Da (HMW)) dissolved organic matter (DOM) isolated from seawater in an attempt to provide new insights in to the cycling of DOM in the ocean. While a variety of sites spanning different environments (fluvial, coastal and oceanic) and ocean basins were examined, the chemical structure of the isolated HMW DOM varied little at both the polymer and monomer levels. All samples show similar ratios of carbohydrate:acetate:lipid carbon (80±4:10±2:9±4) indicating that these biochemicals are present within a family of related polymers. The carbohydrate fraction shows a characteristic distribution of seven major neutral monosaccharides: rhamnose, fucose, arabinose, xylose, mannose, glucose and galactose; and additionally contains Nacetylated amino sugars as seen by Nuclear Magnetic Resonance Spectroscopy (NMR). This family of compounds, consisting of a specifically linked polysaccharide backbone that is acylated at several positions, has been termed acylated polysaccharides (APS) by our laboratory. APS accounts for 50% of the carbon in HMW DOM isolated from the surface ocean and 20% of the carbon in HMW DOM isolated from the deep ocean. In order to identify a possible source for APS three species of phytoplankton, Thalassiossira weissflogii, Emiliania huxleyi and Phaeocystis, were cultured in seawater and their HMW DOM exudates examined by variety of analytical techniques. Both the T. weissflogii and E. huxleyi exudates contain compounds that resemble APS indicating that phytoplankton are indeed a source of APS to the marine environment. Furthermore, the degradation of the T. weissflogii exudate by a natural assemblage of microorganisms indicates that the component resembling APS is more resistant to microbial degradation compared to other polysaccharides present in the culture. Molecular level analyses show the distribution of monosaccharides to be conservative in surface and deep waters suggesting that APS is present throughout the water column. In order to determine the mechanism by which APS is delivered to the deep ocean the [delta]14C value of APS in the deep ocean was compared to the A14C value of the dissolved inorganic carbon (DIC) at the same depth. If the formation of deep water is the dominant mode of transport then both the DIC and APS will have similar [delta]14C values. However, if APS is injected into the deep ocean from particles or marine snow then the [delta]14C value of APS will be higher than the DIC at the same depth. Our results indicate that APS in the deep Pacific Ocean carries a modem [delta]14C value and is substantially enriched in 14C relative to the total HMW DOM and the DIC at that depth. Thus, particle dissolution appears to be the most important pathway for the delivery of APS to the deep ocean.

Annual Report

Annual Report
A Book

by Woods Hole Oceanographic Institution

  • Publisher : Unknown Publisher
  • Release : 1994
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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The Coastal Ocean Prediction Systems Program: Overview and invited papers

The Coastal Ocean Prediction Systems Program: Overview and invited papers
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 1990
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Memoirs of the National Defense Academy (Science and Engineering)

Memoirs of the National Defense Academy (Science and Engineering)
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 2013
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Advances in Computational Oceanography

Advances in Computational Oceanography
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 2006
  • Pages : 200
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Physics Briefs

Physics Briefs
Physikalische Berichte

by Anonim

  • Publisher : Unknown Publisher
  • Release : 1992
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Monthly Summary Report

Monthly Summary Report
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 1992
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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