Shaped By Wind Wave

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Radar Scattering from Modulated Wind Waves

G.J. Komen,W.A. Oost
Radar Scattering from Modulated Wind Waves Book PDF

Author : G.J. Komen,W.A. Oost
Publisher : Springer Science & Business Media
Page : 265 pages
File Size : 48,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400923096

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Radar Scattering from Modulated Wind Waves by G.J. Komen,W.A. Oost Pdf

Ten years ago, de Loor and co-workers at TNO, The Netherlands, were the first to report bottom topography patterns in real aperture radar (RAR) images of the southern North Sea. At that time, this was a real puzzle. The skin depth of microwaves for sea water is only of the order of centimeters while the sea bottom is about 20 meters below the surface. Electromagnetic radiation therefore cannot probe the bottom directly. Similar phenomena were found in radar imagery from SEASAT and SIR-AlB synthetic aperture radars (SAR's) of Nantucket Shoals, the English Channel and many other coastal areas. Since then theory and ocean field experiments (Le., Phelps Bank, Georgia Straits, SARSEX, TOWARD, FASINEX, etc.) have advanced our understanding considerably. We now know that these surface signatures are the results of surface currents, perturbed by the bottom topography, which refract the propagation and modulate the energy of (short) surface waves so as to cause microwave backscatter power variations. Hence, any large scale ocean features containing nonuniform surface currents (i.e. internal waves, eddies, fronts, etc.) will cause similar manifestations in the radar imagery by means of current-wave-microwave interactions. Observations confirm this.

Proceedings of PIANC Smart Rivers 2022

Yun Li,Yaan Hu,Philippe Rigo,Francisco Esteban Lefler,Gensheng Zhao
Proceedings of PIANC Smart Rivers 2022 Book PDF

Author : Yun Li,Yaan Hu,Philippe Rigo,Francisco Esteban Lefler,Gensheng Zhao
Publisher : Springer Nature
Page : 1616 pages
File Size : 45,7 Mb
Release : 2023-02-25
Category : Technology & Engineering
ISBN : 9789811961380

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Proceedings of PIANC Smart Rivers 2022 by Yun Li,Yaan Hu,Philippe Rigo,Francisco Esteban Lefler,Gensheng Zhao Pdf

This book is a compilation of selected papers from the 10th PIANC Smart Rivers Conference (Smart Rivers 2022). The work focuses on novel techniques for inland waterways and navigation structures. The contents make valuable contributions to academic researchers, engineers in the industry, and regulators of aviation authorities. As well, readers will encounter new ideas for realizing Green Waterways and Sustainable Navigations. This is an open access book.

Wind Waves at Se

Henry Bryant Bigelow,Walles Thomas Edmondson
Wind Waves at Se Book PDF

Author : Henry Bryant Bigelow,Walles Thomas Edmondson
Publisher : Unknown
Page : 216 pages
File Size : 54,7 Mb
Release : 2012-06-01
Category : Electronic
ISBN : 1258369230

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Wind Waves at Se by Henry Bryant Bigelow,Walles Thomas Edmondson Pdf

Hydrographic Office Publication, No. 609.

The Interaction of Ocean Waves and Wind

Peter Janssen
The Interaction of Ocean Waves and Wind Book PDF

Author : Peter Janssen
Publisher : Cambridge University Press
Page : 310 pages
File Size : 46,6 Mb
Release : 2004-10-28
Category : Science
ISBN : 9780521465403

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The Interaction of Ocean Waves and Wind by Peter Janssen Pdf

This book was published in 2004. The Interaction of Ocean Waves and Wind describes in detail the two-way interaction between wind and ocean waves and shows how ocean waves affect weather forecasting on timescales of 5 to 90 days. Winds generate ocean waves, but at the same time airflow is modified due to the loss of energy and momentum to the waves; thus, momentum loss from the atmosphere to the ocean depends on the state of the waves. This volume discusses ocean wave evolution according to the energy balance equation. An extensive overview of nonlinear transfer is given, and as a by-product the role of four-wave interactions in the generation of extreme events, such as freak waves, is discussed. Effects on ocean circulation are described. Coupled ocean-wave, atmosphere modelling gives improved weather and wave forecasts. This volume will interest ocean wave modellers, physicists and applied mathematicians, and engineers interested in shipping and coastal protection.

Comparison of Wind Wave and Uniform Wave Effects on a Beach

Peter Truman Kraai
Comparison of Wind Wave and Uniform Wave Effects on a Beach Book PDF

Author : Peter Truman Kraai
Publisher : Unknown
Page : 96 pages
File Size : 50,9 Mb
Release : 1969
Category : Beach erosion
ISBN : ERDC:35925002856877

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Comparison of Wind Wave and Uniform Wave Effects on a Beach by Peter Truman Kraai Pdf

A series of two dimensional experiments were made in a wave channel to compare the nearshore beach profiles formed by wind generated waves with the profiles formed by periodic machine-generated waves. Although equilibrium was easily obtained in the case of uniform periodic wave exposure, it was not possible to achieve equilibrium when the beach was exposed to wind waves. Particles of neutral buoyancy and dyes indicated that the basic current systems differed in the offshore zone for the two cases. Arguments are presented to show that no theoretical equilibrium beach profile exists for the case of a beach exposed to locally generated wind waves. (Author).

Wind Waves at Sea, Breakers and Surf

Henry Bryant Bigelow,Walles Thomas Edmondson
Wind Waves at Sea Breakers and Surf Book PDF

Author : Henry Bryant Bigelow,Walles Thomas Edmondson
Publisher : Unknown
Page : 208 pages
File Size : 50,8 Mb
Release : 1947
Category : Waves
ISBN : UIUC:30112007566661

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Wind Waves at Sea, Breakers and Surf by Henry Bryant Bigelow,Walles Thomas Edmondson Pdf

Operational Analysis and Prediction of Ocean Wind Waves

Madhav L. Khandekar
Operational Analysis and Prediction of Ocean Wind Waves Book PDF

Author : Madhav L. Khandekar
Publisher : Springer Science & Business Media
Page : 223 pages
File Size : 48,9 Mb
Release : 2013-03-07
Category : Science
ISBN : 9781461389521

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Operational Analysis and Prediction of Ocean Wind Waves by Madhav L. Khandekar Pdf

This monograph is an attempt to compile the present state of knowledge on ocean wave analysis and prediction. The emphasis of the monograph is on the development of ocean wave analysis and predic tion procedures and their utility for real-time operations and appli cations. Most of the material in the monograph is derived from journal articles, research reports and recent conference proceedings; some of the basic material is extracted from standard text books on physical oceanography and wind waves. Ocean wave analysis and prediction is becoming an important activity in the meteorological and oceanographic services of many countries. The present status of ocean wave prediction may be compar able to the status of numerical weather prediction of the mid-sixties and early seventies when a number of weather prediction models were developed for research purposes, many of which were later put into operational use by meteorological services of several countries. The increased emphasis on sea-state analysis and prediction has created a need for a ready reference material on various ocean wave analysis and modelling techniques and their utility. The present monograph is aimed at fulfilling this need. The monograph should prove useful to the ocean wave modelling community as well as to marine forecasters, coastal engineers and offshore technologists. The monograph could also be used for a senior undergraduate (or a first year graduate) level course in ocean wave modelling and marine meteorology.

Wind Generated Ocean Waves

I.R. Young
Wind Generated Ocean Waves Book PDF

Author : I.R. Young
Publisher : Elsevier
Page : 307 pages
File Size : 47,8 Mb
Release : 1999-03-23
Category : Science
ISBN : 9780080543802

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Wind Generated Ocean Waves by I.R. Young Pdf

The goals of wind wave research are relatively well defined: to be able to predict the wind wave field and its effect on the environment. That environment could be natural (beaches, the atmosphere etc.) or imposed by human endeavour (ports, harbours, coastal settlements etc.). Although the goals are similar, the specific requirements of these various fields differ considerably. This book attempts to summarise the current state of this knowledge and to place this understanding into a common frame work. It attempts to take a balanced approach between the pragmatic engineering view of requiring a short term result and the scientific quest for detailed understanding. Thus, it attempts to provide a rigorous description of the physical processes involved as well as practical predictive tools.

Public Works for Water and Power Development and Atomic Energy Commission Appropriation Bill, 1973

United States. Congress. House. Committee on Appropriations. Subcommittee on Public Works
Public Works for Water and Power Development and Atomic Energy Commission Appropriation Bill 1973 Book PDF

Author : United States. Congress. House. Committee on Appropriations. Subcommittee on Public Works
Publisher : Unknown
Page : 2544 pages
File Size : 54,7 Mb
Release : 1972
Category : Water resources development
ISBN : MINN:31951P01182459T

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Public Works for Water and Power Development and Atomic Energy Commission Appropriation Bill, 1973 by United States. Congress. House. Committee on Appropriations. Subcommittee on Public Works Pdf

Wind Waves

Blair Kinsman
Wind Waves Book PDF

Author : Blair Kinsman
Publisher : Courier Corporation
Page : 706 pages
File Size : 47,7 Mb
Release : 1984-01-01
Category : Science
ISBN : 9780486646527

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Wind Waves by Blair Kinsman Pdf

In this classic study, a renowned student of ocean wave theory examines the data requirements and details of the power spectral analysis required to make the wave revolution intelligible. Although the discussions center on waves, once the techniques are understood, they can be applied to many other areas. After outlining the nature of waves and wave processes and their methods of measurement and classification, the author provides a detailed exploration that relies heavily on mathematical models. Topics include perturbations of irrotational motion, energy considerations, wave generations by wind, and much more. The text is enhanced and clarified by 270 photos, figures, and tables. A helpful bibliography and indexes conclude this indispensable addition to the oceanographer's library.

Meteorology for Naval Aviators

United States. Office of the Chief of Naval Operations
Meteorology for Naval Aviators Book PDF

Author : United States. Office of the Chief of Naval Operations
Publisher : Unknown
Page : 228 pages
File Size : 50,8 Mb
Release : 1973
Category : Meteorology in aeronautics
ISBN : MINN:30000010484255

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Meteorology for Naval Aviators by United States. Office of the Chief of Naval Operations Pdf

Advances in Coastal and Ocean Engineering

Philip L. F. Liu
Advances in Coastal and Ocean Engineering Book PDF

Author : Philip L. F. Liu
Publisher : World Scientific
Page : 238 pages
File Size : 50,5 Mb
Release : 1997
Category : Technology & Engineering
ISBN : 9810230168

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Advances in Coastal and Ocean Engineering by Philip L. F. Liu Pdf

This review volume, the third in the series, presents the latest topics for discussion, which provides invaluable information to coastal and ocean engineers around the world. In the first paper of this volume, entitled ?Internal Solitary Waves?, Grimshaw reviews the basic theory of weakly nonlinear waves in an incompressible density-stratified fluid. The internal solitary waves solutions and effects such as friction, refraction and finite amplitude on internal solitary waves are also discussed. In the second paper entitled ?The 3/2-Power Law for Ocean Wind Waves and Its Applications?, Toba gives a thorough review on the field evidence and physical background of the 3/2-power law and the associated wind-wave energy spectra. Several wind-wave prediction models are also discussed. Goda, in his paper entitled ?Directional Wave Spectrum and Its Engineering Applications?, gives a brief historical overview of the development of directional wave spectrum. He presents several standard formulas for directional spreading function for engineering applications and discusses the effects of directional spreading on nearshore currents and wave forces on coastal structures. In a companion paper entitled ?Analysis of the Directional Wave Spectrum from Field Data?, Hashimoto describes the maximum entropy principle method, Bayesian directional spectrum estimation method and the extended maximum entropy method for estimating directional wave spectrum. Hashimoto also introduces a new developed Doppler-type directional wave meter for field measurements. Finally, in ?Reliability-Based Design of Coastal Structures?, Barcharth introduces a design procedure that makes it possible to optimize a design and/or to design to a specific failure probability level.