Surface Roughness, Sea-Surface Slope and Wind-Wave Spectrum - Supplement PDF Download
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Author: Jin Wu
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
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Book Description
The measured mean square slope of the sea surface was shown to vary logarithmically with the wind velocity, and the rates of variation change with different boundary-layer regimes of the wind. Based on mean square slope data, the spectral constant of the directional wind-wave spectrum in the equilibrium range was considered to vary with wind regimes. The different rates of growth of slope with wind velocity is now interpreted as the result of the cutoff wave number extending into the capillary range at high wind velocities. (Author).
Author: Jin Wu
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
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Book Description
The measured mean square slope of the sea surface was shown to vary logarithmically with the wind velocity, and the rates of variation change with different boundary-layer regimes of the wind. Based on mean square slope data, the spectral constant of the directional wind-wave spectrum in the equilibrium range was considered to vary with wind regimes. The different rates of growth of slope with wind velocity is now interpreted as the result of the cutoff wave number extending into the capillary range at high wind velocities. (Author).
Author: Stanislaw Ryszard Massel
Publisher: World Scientific
ISBN: 9813228393
Category : Technology & Engineering
Languages : en
Pages : 801
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Book Description
This book is an extended and substantially updated edition of the previous book editions published in 1996 and 2013 under the same title. The 3rd edition is a one-volume, modern and comprehensive overview of the current knowledge of regular and random ocean surface waves in deep waters and in coastal zones.Since the previous editions many new theoretical advances have been made in the physical understanding and analytical and numerical treatment of various ocean wave problems. The revisions and supplements demanded by these advances have been substantial, therefore the scope of the book has been extended by adding a new chapter and substantially supplementing others.All chapters of the book have been rewritten to include and describe in detail many new discoveries made since the completion of the previous editions. In this 3rd edition a comprehensive and updated overview of the fundamentals of the regular wave mechanics, as well as the spectral and statistical properties of random waves are given. Except for the updated chapters dedicated to tsunami and extreme waves, a new chapter dealing with other types of impulsive waves starting from rest, are also included.The air-sea interaction processes as well as the last improvements in ocean wave modelling and presently available wave prediction models (WAM, WAVEWATCH III, UMWM, NEMO) are thoroughly discussed and their applications are demonstrated. The review of the present ocean observation methods encompasses the modern sea-truthing, as well as applications of data from presently operating marine satellites.In this revised edition, chapters on the behavior of surface waves in the vegetated environments such as coral reef, mangrove forest, seaweed and seagrass areas are substantially extended and updated to include the last discoveries.The explanations in the book are self-contained and detailed enough to capture the interest of the potential readers and to prompt them to explore the research literature. The list of rapidly growing number of the recent papers on the ocean waves has been extended substantially, up to about 900 titles.
Author: Stanislaw Ryszard Massel
Publisher: World Scientific
ISBN: 9814502286
Category : Technology & Engineering
Languages : en
Pages : 509
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Book Description
New Edition: Ocean Surface Waves: Their Physics and Prediction (3rd Edition)This book is intended as a handbook for professionals and researchers in the areas of Physical Oceanography, Ocean and Coastal Engineering and as a text for graduate students in these fields.It presents a comprehensive study on surface ocean waves induced by wind, including basic mathematical principles, physical description of the observed phenomena, practical forecasting techniques of various wave parameters and applications in ocean and coastal engineering, all from the probabilistic and spectral points of view.The book commences with a description of mechanisms of surface wave generation by wind and its modern modeling techniques. The stochastic and probabilistic terminology is introduced and the basic statistical and spectral properties of ocean waves are developed and discussed in detail.The bulk of material deals with the prediction techniques for waves in deep and coastal waters for simple and complex ocean basins and complex bathymetry. The various prediction methods, currently used in oceanography and ocean engineering, are described and the examples of practical calculations illustrate the basic text.An appendix provides a description of the modern methods of wave measurement, including the remote sensing techniques. Also the wave simulation methods and random data analysis techniques are discussed. In the book a lot of discoveries of the Russian and East European scientists, largely unknown in the Western literature due to the language barrier, are referred to.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1278
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Book Description
Author: Stanislaw R. Massel
Publisher: World Scientific
ISBN: 9814460125
Category : Science
Languages : en
Pages : 690
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Book Description
The book contains a comprehensive study on surface ocean waves induced by wind, earthquakes, and possibly landslides and asteroids impacts. Basic mathematical principles, physical description of the observed phenomena, practical forecasting techniques of the various wave parameters and extended application in ocean and coastal engineering, are discussed from the stochastic point of view. New topics include wave breaking mechanisms in deep- and shallow water, and freak waves.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
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Book Description
This paper presents an analysis of the wavenumber spectra of intermediate-scale waves (wavelengths between 0.02 and 6 meters) under various sea-state conditions. The main result of the analysis is that the dependence of the dimensionless wave spectrum on the dimensionless wind-friction velocity follows a power-law function. The coefficient and exponent of the power-law function vary systematically with the wavenumber. The wavenumber dependence of the coefficient and exponent serves as an empirical parameterization for computing the wavenumber spectra of intermediate-scale waves at different wind speeds. Calculation of the mean-square slope from the resulting wavenumber spectrum confirms that intermediate-scale waves are the dominate contributor to ocean surface roughness. A simple formula is presented for calculating the band-pass filtered mean-square slope of the ocean surface for remote sensing applications.
Author: Atsushi Fujimura
Publisher: MDPI
ISBN: 3039217461
Category : Science
Languages : en
Pages : 202
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Book Description
Changes in sea surface roughness are usually associated with a change in the sea surface wind field. This interaction has been exploited to measure sea surface wind speed by scatterometry. A number of features on the sea surface associated with changes in roughness can be observed by synthetic aperture radar (SAR) because of the change in Bragg backscatter of the radar signal by damping of the resonant ocean capillary waves. With various radar frequencies, resolutions, and modes of polarization, sea surface features have been analyzed in numerous campaigns, bringing various datasets together, thus allowing for new insights into small-scale processes at a larger areal coverage. This Special Issue aims at investigating sea surface features detected by high spatial resolution radar systems, such as SAR.
Author: United States. Beach Erosion Board
Publisher:
ISBN:
Category : Gravity waves
Languages : en
Pages : 208
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Book Description
Author: Y. Toba
Publisher: Springer Science & Business Media
ISBN: 940157717X
Category : Science
Languages : en
Pages : 581
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Book Description
Author:
Publisher:
ISBN:
Category : Oceanographic instruments
Languages : en
Pages : 156
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Book Description
