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Longshore Sand Transport Distribution Across The Surf Zone Due To Random Waves
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Book Synopsis Longshore Sand Transport Distribution Across the Surf Zone Due to Random Waves by : Saad Mesbah M. Abdelrahman
Download or read book Longshore Sand Transport Distribution Across the Surf Zone Due to Random Waves written by Saad Mesbah M. Abdelrahman and published by . This book was released on 1983 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water waves are one of the principal causes of shoreline changes. When waves break along the shore, they release their energy and momentum and give rise to a longshore current. The longshore current, along with the stirring action of the waves, is the primary mechanism for longshore sediment transport. The longshore sand transport rate is an essential factor determining erosion or accretion along a coast. If the longshore sand transport rate can be accurately estimated, a quantitative picture of shoreline evolution can be evaluated, including changes of the shoreline due to marine structures. In the present study, analytical and numerical models are developed based on a longshore current model for random waves and a sediment transport formulation by Thornton to predict the cross-shore sediment transport distribution and to compute the total volume of sand transport rate. The model is compared with the field data acquired from Leadbetter Beach, Santa Barbara, California.
Book Synopsis Shore Wave Modulation Due to Infragravity Waves in the Nearshore Zone, with Applications by : Saad M. M. Abdelrahman
Download or read book Shore Wave Modulation Due to Infragravity Waves in the Nearshore Zone, with Applications written by Saad M. M. Abdelrahman and published by . This book was released on 1986 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: The omni-present low frequency wave motion (30-300 sec) contains a substantial fraction of the total wave energy inside the surf zone. A more complete description of nearshore wave processes considers incident short period waves superposed on, and interacting with, long standing waves. The wind waves are modulated in amplitude, wavenumber and direction due to relatively slowly varying depth changes caused by the long waves. The energy in the wind wave band is enhanced by side band growth at the sum and difference frequencies of short and long waves (order 15% at the shoreline). The modulation is identified in the analysis of field data as a positive correlation between the long waves and the wind wave envelope near the shoreline. Considering oblique incident waves, a steady longshore current showing a non-vanishing current at the shoreline is found as a result of the non-linear interaction between monochromatic incident and infragravity waves. An analytical solution describing the unsteadiness of the longshore current is developed. Keywords include: Infragravity, Longshore Current, Sediment transport, and Surf zone dynamics. (Theses).
Book Synopsis Superduck Surf Zone Sand Transport Experiment by : Julie Dean Rosati
Download or read book Superduck Surf Zone Sand Transport Experiment written by Julie Dean Rosati and published by . This book was released on 1990 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: The procedures and results of an experiment performed to measure the longshore sand transport rate in the surf zone as part of the SUPERDUCK field data collection project are described in this report. Cross-shore distributions of the longshore sand transport rate, as well as its variation at a point in the surf zone through time, were measured with portable sand traps. Comparison of measurements made with two closely spaced traps indicates trap reliability and consistency. The longshore sand transport rate measured at SUPERDUCK was found to be closely related to the product of wave height and longshore current speed, consistent with previously derived theoretical models of transport. The correlation was considerably improved, however, by including corrections due to energy dissipation introduced by breaking waves and the variation in the longshore current speed. A complete listing of the sand transport rate, wave height, longshore current, and sand grain size data is given. Keywords: Sediment transport, Field experiment, Longshore sand transport, Streamer trap, Surf zone.
Book Synopsis The Longshore Transport of Sand on Beaches by : Paul Douglas Komar
Download or read book The Longshore Transport of Sand on Beaches written by Paul Douglas Komar and published by . This book was released on 1969 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Masters Theses in the Pure and Applied Sciences by : Wade H. Shafer
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1 957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 29 (thesis year 1984) a total of 12,637 theses titles from 23 Canadian and 202 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 29 reports theses submitted in 1984, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Book Synopsis Littoral Sand Transport from Longshore Currents by : Todd E. Walton
Download or read book Littoral Sand Transport from Longshore Currents written by Todd E. Walton and published by . This book was released on 1980 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Short-term Impoundment of Longshore Sediment Transport by : Kevin R. Bodge
Download or read book Short-term Impoundment of Longshore Sediment Transport written by Kevin R. Bodge and published by . This book was released on 1987 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt: Local down- drift profile changes were found to be poor indicators of the local updrift impoundment. In general, the longshore transport profiles were found to be bimodal with peaks just landward of the breakpoint and near the shoreline; the relative significance of the longshore transport shifted from the near-breakpoint peak to the near-shoreline peak as the wave condition varied from spilling to collapsing breakers. Alternately stated, the longshore transport distribution appeared strongly beach profile dependent, as transport was most pronounced over local regions of high bed steepness. Between 10% and 30% of the total longshore transport was observed seaward of the breakpoint for all cases. Long- shore transport in the swash zone represented at least 5% to 60% of the total transport, where the largest swash contributions were associated with plunging/collapsing and collapsing surf conditions.
Book Synopsis Miscellaneous Report by : Coastal Engineering Research Center (U.S.)
Download or read book Miscellaneous Report written by Coastal Engineering Research Center (U.S.) and published by . This book was released on 1976 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Miscellaneous Report - Coastal Engineering Research Center by : Coastal Engineering Research Center (U.S.)
Download or read book Miscellaneous Report - Coastal Engineering Research Center written by Coastal Engineering Research Center (U.S.) and published by . This book was released on 1976 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1979 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heuristic Models of Sand Transport in the Surf Zone by : Robert George Dean
Download or read book Heuristic Models of Sand Transport in the Surf Zone written by Robert George Dean and published by . This book was released on 1973 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Encyclopedia of Coastal Science by : M. Schwartz
Download or read book Encyclopedia of Coastal Science written by M. Schwartz and published by Springer Science & Business Media. This book was released on 2006-11-08 with total page 1243 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new Encyclopedia of Coastal Science stands as the latest authoritative source in the field of coastal studies, making it the standard reference work for specialists and the interested lay person. Unique in its interdisciplinary approach. This Encyclopedia features contributions by 245 well-known international specialists in their respective fields and is abundantly illustrated with line-drawings and photographs. Not only does this volume offer an extensive number of entries, it also includes various appendices, an illustrated glossary of coastal morphology and extensive bibliographic listings.
Book Synopsis Southern California Coastal Processes by :
Download or read book Southern California Coastal Processes written by and published by . This book was released on 1986 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Coastal Engineering: Theory And Practice by : Sundar Vallam
Download or read book Coastal Engineering: Theory And Practice written by Sundar Vallam and published by World Scientific. This book was released on 2019-03-20 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book can potentially serve as a comprehensive textbook for students pursuing this subject either as degree or an elective course. It covers all the fundamental physics behind the different phenomena taking place in the near shore regions and the coast as well as the various methods to estimate its impact. Basic knowledge of water wave mechanics is crucial in understanding the coastal processes taking place in the near shore. The assessment of incident forces due to wind, wave, tide, current etc. is important to evaluate the resultant impact they cause on the shoreline and structures.This book emphasizes the importance of sediment dynamics by analyzing the sediment characteristics, the physics of its motion and movement, factors responsible for the fate of sediments etc. It also highlights the erosion problem which is most prevalent across the sandy coasts, additionally erosion combating methods and techniques are also described with real time field problems and their solutions.A wide range of coastal structures and their design principles are included in this book in order to give the reader a holistic understanding to the readers. This book also includes the design challenges and introduces the reliable modeling tools and techniques, which is very useful for beginners working in this discipline.
Book Synopsis Nearshore Sediment Transport by : R.J. Seymour
Download or read book Nearshore Sediment Transport written by R.J. Seymour and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book represents the efforts of over a hundred individuals who planned and executed the NSTS field experiments, analyzed the billions of data points, and distilled their findings and insights into the summaries found here. Because these experiments were of a scope that will seldom, if ever, be duplicated, and because the program brought together many of the foremost field experimentalists in this country, we all felt from the beginning that it was important to preserve the outcome. This was done in two ways. First, the raw data were made available to any interested investigator within 18 months of the completion of each experiment. Secondly, both the methodology of the experiments and the findings from them were codified in the form of a monograph. This book is that result. I have had the occasion recently (Sediments '87 Proceedings, Vol. 1, pp. 642-651) to assess the NSTS performance. I found that we made giant strides in our understanding of the surf zone hydrodynamics --far more than our fondest expectations at the beginning. We were able to do less than we had hoped about the response of the sediment, largely because of a limited ability to measure it at a point. As I reported in the Sediments '87 assessment, we established a new state of the art in measurement techniques and we demonstrated the effectiveness of large, multi-investigator, instrument-intensive experiments for studying nearshore processes.
Book Synopsis Wind and Wave Forcing of Longshore Currents Across a Barred Beach by : Dennis James Whitford
Download or read book Wind and Wave Forcing of Longshore Currents Across a Barred Beach written by Dennis James Whitford and published by . This book was released on 1988 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Previous investigations of longshore currents have included simplifying assumptions and restriction (such as a planar beach, a steady and depth uniform flow, spatially-variant bed shear stress and turbulent momentum exchange, and the exclusion of surface wind stress. These assumptions are quantitatively investigated by calculating the relative importance of each term in the longshore momentum balance with an emphasis on the relative importance of wind forcing across the barred nearshore. Wind and wave forcing of longshore currents across a barred beach are examined using both a numerical model and field measurements. A local momentum balance was measured at various locations across the surf zone during the SUPERDUCK experiment held at the USACE CERC Field Research Facility, Duck, N.C. in October 1986. A moveable sled was instrumented with pressure, current, and wind sensors to measure the various terms in the longshore momentum equation. Stability-dependent atmospheric drag coefficients for the surf zone are determined from wind stress measurements acquired just beyond the surf zone and wind speed measurements acquired from an anemometer atop the 9 m sled mast. Breaking waves were visually identified and electronically marked on the data tapes. Keywords: Ocean currents; Air water interactions; Nearshore surf zone; Wind stress; Theses. (EDC).
Book Synopsis Coastal Sediments '91 by : Nicholas C. Kraus
Download or read book Coastal Sediments '91 written by Nicholas C. Kraus and published by . This book was released on 1991 with total page 1240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
