Array Measurements Of Surface Gravity Waves

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Array Measurements of Surface Gravity Waves

Author : Thomas H. C. Herbers
Publisher :
ISBN 13 :
Total Pages : 262 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Array Measurements of Surface Gravity Waves by : Thomas H. C. Herbers

Download or read book Array Measurements of Surface Gravity Waves written by Thomas H. C. Herbers and published by . This book was released on 1990 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: Local properties of natural, wind generated, surface gravity waves are examined with arrays of pressure transducers. Two methods are presented for interpretation of array measurements. First and estimator for wave radiation stresses and energy fluxes is derived, applicable to an array of 4 pressure transducers arranged in a square. The technique is based on an expansion for small kL with k the wave number and L the sensor separation. A variational method for estimating directional wave spectra, applicable to arbitrary array geometries in constant or slowly varying depth water is presented next. A smooth estimate of the directional distribution of wave energy S (Theta) is obtained by minimizing a roughness measure. Model tests show that spurious features are effectively rejected by the smoothness constraint, and illustrate the importance of data-independent information. Estimates of S(Theta), obtained from field data collected offshore of a mildly sloping beach, show that reflection of incident sea and swell is very weak. Observations of sea floor pressure fluctuations in 13 m depth are compared to a theory for weakly nonlinear surface gravity waves. Nonlinear interactions between directionally opposing seas theoretically excite long wavelength, double sea frequency forced waves that are only weakly attenuated at the sea floor. Observed bottom pressure spectra show that large fluctuations in double sea frequency (0.35 - 0.6 Hz) forced wave energy can occur in only a few hours.

Near-surface Current Meter Array Measurements of Internal Gravity Waves

Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (88 download)

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Book Synopsis Near-surface Current Meter Array Measurements of Internal Gravity Waves by :

Download or read book Near-surface Current Meter Array Measurements of Internal Gravity Waves written by and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Video Measurements and Analysis of Surface Gravity Waves in Shallow Water

Author : Charles R. Bostater
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (115 download)

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Book Synopsis Video Measurements and Analysis of Surface Gravity Waves in Shallow Water by : Charles R. Bostater

Download or read book Video Measurements and Analysis of Surface Gravity Waves in Shallow Water written by Charles R. Bostater and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Wave Dynamics and Radio Probing of the Ocean Surface

Author : O. M. Phillips
Publisher : Springer Science & Business Media
ISBN 13 : 1468489801
Total Pages : 677 pages
Book Rating : 4.4/5 (684 download)

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Book Synopsis Wave Dynamics and Radio Probing of the Ocean Surface by : O. M. Phillips

Download or read book Wave Dynamics and Radio Probing of the Ocean Surface written by O. M. Phillips and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 677 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1960, Dr. George Deacon ofthe National Institute ofOceanography in England organized a meeting in Easton, Maryland that summarized the state of our understanding at that time of ocean wave statistics and dynamics. It was a pivotal occasion: spectral techniques for wave measurement were beginning to be used, wave-wave interactions hadjust been discovered, and simple models for the growth of waves by wind were being developed. The meeting laid the foundation for much work that was to follow, but one could hardly have imagined the extent to which new techniques of measurement, particularly by remote sensing, new methods of calculation and computation, and new theoretical and laboratory results would, in the following twenty years, build on this base. When Gaspar Valenzuela of the V. S. Naval Research Laboratory perceived that the time was right for a second such meeting, it was natural that Sir George Deacon would be invited to serve as honorary chairman for the meeting, and the entire waves community was delighted at his acceptance. The present volume contains reviewed and edited papers given at this second meeting, held this time in Miami, Florida, May 13-20, 1981, with the generous support of the Office of Naval Research, the National Aeronautics and Space Administration, and the National Oceanic and Atmospheric Administration.

The Ocean Surface

Author : Y. Toba
Publisher : Springer Science & Business Media
ISBN 13 : 940157717X
Total Pages : 581 pages
Book Rating : 4.4/5 (15 download)

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Book Synopsis The Ocean Surface by : Y. Toba

Download or read book The Ocean Surface written by Y. Toba and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Scientific and Technical Aerospace Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 1460 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Intermediate and Deep Current Measurements in the Northeast Pacific Ocean

Author : Marshall D. Earle
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Intermediate and Deep Current Measurements in the Northeast Pacific Ocean by : Marshall D. Earle

Download or read book Intermediate and Deep Current Measurements in the Northeast Pacific Ocean written by Marshall D. Earle and published by . This book was released on 1975 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ocean currents were measured in the central northeast Pacific, from 30 degrees N to 40 degrees N and 140 degrees W to 150 degrees W, with nine arrays of moored current meters during autumn 1973. Current meter records at depths from 700 m to 5420 m were analyzed to determine the characteristics of intermediate and deep currents within the central northeast Pacific. The currents in this region have very low speeds which generally decrease with increasing depth. Contributions to the time-dependent currents are primarily from oscillatory motions at the local inertial frequencies and the semidiurnal tidal frequency. Spectral analysis indicates that tidal frequency motion is essentially due to baroclinic internal tides and not barotropic surface tides.

Boundary-Layer Meteorology 25th Anniversary Volume, 1970–1995

Author : John R. Garratt
Publisher : Springer Science & Business Media
ISBN 13 : 9780792341918
Total Pages : 434 pages
Book Rating : 4.3/5 (419 download)

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Book Synopsis Boundary-Layer Meteorology 25th Anniversary Volume, 1970–1995 by : John R. Garratt

Download or read book Boundary-Layer Meteorology 25th Anniversary Volume, 1970–1995 written by John R. Garratt and published by Springer Science & Business Media. This book was released on 1996-09-30 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: The journal Boundary-Layer Meteorology was started in 1970 and has become the premier vehicle for the publication of research papers in its field. Dr R.E. Munn served as Editor-in-Chief until recently. The special 25th Anniversary volume, on which this book is based, was compiled from review and other articles solicited and selected as a `Festschrift' to honour Ted Munn's achievement as editor of the journal over that time. Articles by leading contributors to the field include reviews of field studies (Askervein, HEXOS, Cabauw) and their impacts; numerical modelling (large-eddy simulation of the surface layer, frontal structures); analyses and critical discussions (of the von Karman constant, bulk aerodynamic formulations, air-sea interaction, vegetation canopies); and reviews or previews of progress in our understanding of the atmospheric boundary layer, turbulence simulation, Lagrangian descriptions of turbulent diffusion and remote sensing of the boundary layer. The collection provides an excellent perspective on the state of the subject and where it is headed. It should provide fascinating and stimulating reading for researchers and students of boundary-layer meteorology and related areas.

Mechanics of Flow-Induced Sound and Vibration, Volume 2

Author : William K. Blake
Publisher : Academic Press
ISBN 13 : 0128122900
Total Pages : 696 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Mechanics of Flow-Induced Sound and Vibration, Volume 2 by : William K. Blake

Download or read book Mechanics of Flow-Induced Sound and Vibration, Volume 2 written by William K. Blake and published by Academic Press. This book was released on 2017-08-14 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanics of Flow-Induced Sound and Vibration, Volume 2: Complex Flow-Structure Interactions, Second Edition, enables readers to fully understand flow-induced vibration and sound, unifying the disciplines of fluid dynamics, structural dynamics, vibration, acoustics, and statistics in order to classify and examine each of the leading sources of vibration and sound induced by various types of fluid motion. Starting from classical theories of aeroacoustics and hydroacoustics, a formalism of integral solutions valid for sources near boundaries is developed and then broadened to address different source types, including hydrodynamically induced cavitation and bubble noise, turbulent wall-pressure fluctuations, pipe and duct systems, lifting surface flow noise and vibration, and noise from rotating machinery. Each chapter is illustrated with comparisons of leading formulas and measured data. Combined with its companion book, Mechanics of Flow-Induced Sound and Vibration, Volume 1: General Concepts and Elementary Sources, the book covers everything an engineer needs to understand flow-induced sound and vibration. This book will be a vital source of information for postgraduate students, engineers and researchers with an interest in aerospace, ships and submarines, offshore structures, construction, and ventilation. Presents every important topic in flow-induced sound and vibration Covers all aspects of the topics addressed, from fundamental theory, to the analytical formulas used in practice Provides the building blocks of computer modeling for flow-induced sound and vibration

Coastal Engineering 2008 (In 5 Volumes) - Proceedings Of The 31st International Conference

Author : Jane Mckee Smith
Publisher : World Scientific
ISBN 13 : 9814467561
Total Pages : 5136 pages
Book Rating : 4.8/5 (144 download)

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Book Synopsis Coastal Engineering 2008 (In 5 Volumes) - Proceedings Of The 31st International Conference by : Jane Mckee Smith

Download or read book Coastal Engineering 2008 (In 5 Volumes) - Proceedings Of The 31st International Conference written by Jane Mckee Smith and published by World Scientific. This book was released on 2009-05-05 with total page 5136 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings contains papers presented at the 31st International Conference on Coastal Engineering, which has held in Hamburg, Germany (31 August - 5 September 2008). The proceeding is divided into five parts: Waves; Long Waves, Nearshore Currents, and Swash; Sediment Transport and Morphology; Coastal Management, Environment, and Risk; and Coastal Structures. The papers cover a broad range of topics including theory, numerical and physical modeling, field measurements, case studies, design, and management. Coastal Engineering 2008 provides coastal engineers, scientists, and planners, with state-of-the-art information on coastal engineering and coastal processes.

Non-Linear Variability in Geophysics

Author : D. Schertzer
Publisher : Springer Science & Business Media
ISBN 13 : 9400921470
Total Pages : 306 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Non-Linear Variability in Geophysics by : D. Schertzer

Download or read book Non-Linear Variability in Geophysics written by D. Schertzer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: consequences of broken symmetry -here parity-is studied. In this model, turbulence is dominated by a hierarchy of helical (corkscrew) structures. The authors stress the unique features of such pseudo-scalar cascades as well as the extreme nature of the resulting (intermittent) fluctuations. Intermittent turbulent cascades was also the theme of a paper by us in which we show that universality classes exist for continuous cascades (in which an infinite number of cascade steps occur over a finite range of scales). This result is the multiplicative analogue of the familiar central limit theorem for the addition of random variables. Finally, an interesting paper by Pasmanter investigates the scaling associated with anomolous diffusion in a chaotic tidal basin model involving a small number of degrees of freedom. Although the statistical literature is replete with techniques for dealing with those random processes characterized by both exponentially decaying (non-scaling) autocorrelations and exponentially decaying probability distributions, there is a real paucity of literature appropriate for geophysical fields exhibiting either scaling over wide ranges (e. g. algebraic autocorrelations) or extreme fluctuations (e. g. algebraic probabilities, divergence of high order statistical moments). In fact, about the only relevant technique that is regularly used -fourier analysis (energy spectra) -permits only an estimate of a single (power law) exponent. If the fields were mono-fractal (characterized by a single fractal dimension) this would be sufficient, however their generally multifractal character calls for the development of new techniques.

Atmosphere-Ocean Interaction

Author : Eric B. Kraus
Publisher : Oxford University Press
ISBN 13 : 019536208X
Total Pages : 385 pages
Book Rating : 4.1/5 (953 download)

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Book Synopsis Atmosphere-Ocean Interaction by : Eric B. Kraus

Download or read book Atmosphere-Ocean Interaction written by Eric B. Kraus and published by Oxford University Press. This book was released on 1994-11-10 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: With both the growing importance of integrating studies of air-sea interaction and the interest in the general problem of global warming, the appearance of the second edition of this popular text is especially welcome. Thoroughly updated and revised, the authors have retained the accessible, comprehensive expository style that distinguished the earlier edition. Topics include the state of matter near the interface, radiation, surface wind waves, turbulent transfer near the interface, the planetary boundary layer, atmospherically-forced perturbations in the oceans, and large-scale forcing by sea surface buoyancy fluxes. This book will be welcomed by students and professionals in meteorology, physical oceanography, physics and ocean engineering.

Collected Reprints

Author :
Publisher :
ISBN 13 :
Total Pages : 622 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Collected Reprints by :

Download or read book Collected Reprints written by and published by . This book was released on 1976 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Mathematical Models

Author : Jean-Michel Tanguy
Publisher : John Wiley & Sons
ISBN 13 : 1118587707
Total Pages : 407 pages
Book Rating : 4.1/5 (185 download)

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Book Synopsis Mathematical Models by : Jean-Michel Tanguy

Download or read book Mathematical Models written by Jean-Michel Tanguy and published by John Wiley & Sons. This book was released on 2012-12-27 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: This series of five volumes proposes an integrated description of physical processes modeling used by scientific disciplines from meteorology to coastal morphodynamics. Volume 1 describes the physical processes and identifies the main measurement devices used to measure the main parameters that are indispensable to implement all these simulation tools. Volume 2 presents the different theories in an integrated approach: mathematical models as well as conceptual models, used by all disciplines to represent these processes. Volume 3 identifies the main numerical methods used in all these scientific fields to translate mathematical models into numerical tools. Volume 4 is composed of a series of case studies, dedicated to practical applications of these tools in engineering problems. To complete this presentation, volume 5 identifies and describes the modeling software in each discipline.

Ocean Wave Modeling

Author : The SWAMP Group
Publisher : Springer Science & Business Media
ISBN 13 : 1475760558
Total Pages : 248 pages
Book Rating : 4.4/5 (757 download)

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Book Synopsis Ocean Wave Modeling by : The SWAMP Group

Download or read book Ocean Wave Modeling written by The SWAMP Group and published by Springer Science & Business Media. This book was released on 2013-11-22 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Early in 1979, a group of wave researchers proposed a wave model inter comparison study to clarify the interrelations existing among the various wave models which have been developed in past years for real-time wave forecasting, wave statistics compilations, or hindcast case studies. The idea was immediately welcomed by the wave modeling community, and, finally, nine wave modeling groups from the United States, Japan, and Europe participated in the exercise. The principal results of this work are presented here jointly by the Sea Wave Modeling Project (swAMP) Group (the members of which are listed in Appendix A). Descriptions of the models used in the study are given in Part II of this volume. A more complete documentation of the entire set of numerical experiments is given in Part 2 of the Sea Wave Modeling Project (SWAMP group, 1982). The main purpose of the intercomparison study was to test our present understanding of the physics of . wind-generated surface waves from the viewpoint of wave modeling. Specifically, we wished to clarify the basic interdependence between understanding the physics of surface waves, repre senting the physics numerically, and predicting quantitatively the detailed space-time evolution of a two-dimensional surface wave spectrum for a given wind field. It was not our intent to carry out a model competition. In this sense there were no winners or losers: all models could claim specific strong points, and all displayed weaknesses in some areas.

Physical and Mathematical Modeling of Earth and Environment Processes

Author : Vladimir Karev
Publisher : Springer
ISBN 13 : 3319777882
Total Pages : 396 pages
Book Rating : 4.3/5 (197 download)

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Book Synopsis Physical and Mathematical Modeling of Earth and Environment Processes by : Vladimir Karev

Download or read book Physical and Mathematical Modeling of Earth and Environment Processes written by Vladimir Karev and published by Springer. This book was released on 2018-03-24 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the result of collaboration within the framework of the Third International Scientific School for Young Scientists held at the Ishlinskii Institute for Problems in Mechanics of Russian Academy of Sciences, 2017, November. The papers included describe studies on the dynamics of natural system – geosphere, hydrosphere, atmosphere—and their interactions, the human contribution to naturally occurring processes, laboratory modeling of earth and environment processes, and testing of new developed physical and mathematical models. The book particularly focuses on modeling in the field of oil and gas production as well as new alternative energy sources.

Waves in Oceanic and Coastal Waters

Author : Leo H. Holthuijsen
Publisher : Cambridge University Press
ISBN 13 : 1139462520
Total Pages : 9 pages
Book Rating : 4.1/5 (394 download)

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Book Synopsis Waves in Oceanic and Coastal Waters by : Leo H. Holthuijsen

Download or read book Waves in Oceanic and Coastal Waters written by Leo H. Holthuijsen and published by Cambridge University Press. This book was released on 2010-02-04 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Waves in Oceanic and Coastal Waters describes the observation, analysis and prediction of wind-generated waves in the open ocean, in shelf seas, and in coastal regions with islands, channels, tidal flats and inlets, estuaries, fjords and lagoons. Most of this richly illustrated book is devoted to the physical aspects of waves. After introducing observation techniques for waves, both at sea and from space, the book defines the parameters that characterise waves. Using basic statistical and physical concepts, the author discusses the prediction of waves in oceanic and coastal waters, first in terms of generalised observations, and then in terms of the more theoretical framework of the spectral energy balance. He gives the results of established theories and also the direction in which research is developing. The book ends with a description of SWAN (Simulating Waves Nearshore), the preferred computer model of the engineering community for predicting waves in coastal waters.