Coupling Phase-resolving Nearshore Wave Models with Phase-averaged Spectral Wave Models in Coastal Applications PDF Download

Author: Wei Chen
Publisher:
ISBN:
Category : Grays Harbor (Wash.)
Languages : en
Pages : 19

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Book Description

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
The choice of a particular wave model for use in nearshore wave climate forecasting or hindcasting is usually contingent upon the site to be considered and the processes to be modeled. Phase averaged spectral models such as SWAN, WAM or STWAVE are source based energy models which treat the wave field as a stochastic phenomenon. This particular formulation allows for the consideration of wind wave generation, among other source terms. These models (particularly STWAVE and SWAN) are able to simulate irregular wave propagation over coastal areas relatively efficiently; however, the propagation terms in these models are derived from ray theory and do not handle bathymetrically induced diffraction, which may be important in coastal areas. (It should be noted that STWAVE does not contain some accounting for diffraction as a diffusion of wave energy in the source terms). Phase resolving models such as REF/DIF1, REF/DIF-S and RCPWAVE by contrast, treat the wave field deterministically, tracing the free surface evolution over the domain. The irregular nature of the wave field can be accounted for by running several wave frequencies/directions through the model and calculating the statistics from the model results. This is often done by discretizing an input spectrum into frequency and direction bins, calculating the waveheight in each bin and then running them through the model. This formulation is most useful in the case of complex bathymetry and predominantly swell like conditions. Models in this latter class cannot account for wind wave generation.

Author: Jane Mckee Smith
Publisher: World Scientific
ISBN: 9814486973
Category : Technology & Engineering
Languages : en
Pages : 4007

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This book contains more than 300 papers presented at the 28th International Conference on Coastal Engineering, held in Cardiff, Wales, in July 2002. It is divided into five parts: coastal waves; nearshore currents, swash, and long waves; coastal structures; sediment transport; and coastal morphology, beach nourishment, and coastal management. The papers cover a broad range of topics, including theory, numerical and physical modeling, field measurements, case studies, design, and management. Coastal Engineering 2002 provides engineers, scientists, and planners with state-of-the-art information on coastal engineering and coastal processes.

Author: Vijay Panchang
Publisher: World Scientific
ISBN: 9813231297
Category : Science
Languages : en
Pages : 523

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Book Description
Advances in Coastal Hydraulics contains twelve papers that report on recent developments in several areas of coastal hydraulics. The papers, written by well-regarded authors, cover interesting topics such as the interaction of groundwater and coastal waters, the use of remote sensing for coastal applications, erosion in Arctic environments, the impact of marine vegetation on coastal hydrodynamics, new methods to examine the reliability of breakwater design, the development of marine kinetic energy, and methods for modeling coastal processes as well as their applications to small and large scales, such as a harbor in Hawaii (for design) and the extensive coast of India (for examining the effects of tsunamis and sea level rise). The developments presented in this book could serve not only as a reference book, but also as a starting point for new endeavors in the respective topics.

Author: G. J. Komen
Publisher: Cambridge University Press
ISBN: 0521470471
Category : Science
Languages : en
Pages : 558

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Book Description
A comprehensive introduction and reference prepared by the world's leading ocean wave modellers.

Author: Dano Roelvink
Publisher: World Scientific
ISBN: 9814304255
Category : Science
Languages : en
Pages : 291

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Book Description
Process-based morphodynamic modelling is one of the relatively new tools at the disposal of coastal scientists, engineers and managers. On paper, it offers the possibility to analyse morphological processes and to investigate the effects of various measures one might consider to alleviate some problems. For these to be applied in practice, a model should be relatively straightforward to set up. It should be accurate enough to represent the details of interest, it should run long enough and robustly to see the real effects happen, and the physical processes represented in such a way that the sediment generally goes in the right direction at the right rate. Next, practitioners must be able to judge if the patterns and outcomes of the model are realistic and finally, translate these colour pictures and vector plots to integrated parameters that are relevant to the client or end user. In a nutshell, this book provides an in-depth review of ways to model coastal processes, including many hands-on exercises.

Author: Gerardo Perillo
Publisher: Elsevier
ISBN: 0444638946
Category : Science
Languages : en
Pages : 1130

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Book Description
Coastal Wetlands, Second Edition: An Integrated and Ecosystem Approach provides an understanding of the functioning of coastal ecosystems and the ecological services that they provide. As coastal wetlands are under a great deal of pressure from the dual forces of rising sea levels and the intervention of human populations, both along the estuary and in the river catchment, this book covers important issues, such as the destruction or degradation of wetlands from land reclamation and infrastructures, impacts from the discharge of pollutants, changes in river flows and sediment supplies, land clearing, and dam operations. Covers climate change and its influence on coastal wetland form and function Provides a fully updated and expanded resource, including new chapters on modeling, management and the impact of climate change Contains full-color figures of wetlands and estuaries in different parts of the world

Author: Charles J. Ammon
Publisher: Academic Press
ISBN: 0128165170
Category : Science
Languages : en
Pages : 604

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Book Description
Modern Global Seismology, Second Edition, is a complete, self-contained primer on seismology, featuring extensive coverage of all related aspects—from observational data through prediction—and emphasizing the fundamental theories and physics governing seismic waves, both natural and anthropogenic. Based on thoroughly class-tested material, the text provides a unique perspective on Earth’s large-scale internal structure and dynamic processes, particularly earthquake sources, and the application of theory to the dynamic processes of the earth’s upper layer. This insightful new edition is designed for accessibility and comprehension for graduate students entering the field. Exploration seismologists will also find it an invaluable resource on topics such as elastic-wave propagation, seismic instrumentation, and seismogram analysis. Includes more than 400 illustrations, from both recent and traditional research articles, to help readers visualize mathematical relationships, as well as boxed features to explain advanced topics Offers incisive treatments of seismic waves, waveform evaluation and modeling, and seismotectonics, as well as quantitative treatments of earthquake source mechanics and numerous examples of modern broadband seismic recordings Covers current seismic instruments and networks and demonstrates modern waveform inversion methods Includes extensive, updated references for further reading new to this edition Features reorganized chapters split into two sections, beginning with introductory content such as tectonics and seismogram analysis, and moving on to more advanced topics, including seismic wave excitation and propagation, multivariable and vector calculus, and tensor approaches Completely updated references and figures to bring the text up to date Includes all-new sections on recent advancements and to enhance examples and understanding Split into shorter chapters to allow more flexibility for instructors and easier access for researchers, and includes exercises

Author: Zhaoqing Yang
Publisher: Springer
ISBN: 3319535366
Category : Technology & Engineering
Languages : en
Pages : 396

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Book Description
This complete reference to marine renewable energy covers aspects of resource characterization and physical effects of harvesting the ocean’s vast and powerful resources—from wave and tidal stream to ocean current energy. Experts in each of these areas contribute their insights to provide a cohesive overview of the marine renewable energy spectrum based on theoretical, numerical modeling, and field-measurement approaches. They provide clear explanations of the underlying physics and mechanics, and give close consideration to practical implementation aspects, including impacts on the physical system. Engineers, researchers, and students alike will find invaluable tools and studies that will aid them in realizing significant sustainable energy production from near-shore and ocean environments.

Author: Leo H. Holthuijsen
Publisher: Cambridge University Press
ISBN: 1139462520
Category : Science
Languages : en
Pages : 9

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Book Description
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.