Download or read book The Effects of the Presence of a Seawall on Longshore Sediment Transport written by F. Majd and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Impacts of Revetments and Seawalls in a Fetch Limited Coast written by José Carlos Pintado Patiño and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Found on the NW Mediterranean, the Catalan coast is not only subjected to morphological changes driven by physical natural processes but also by significant changes in local dynamics that result from the numerous coastal structures that are found on its realm. The armoring of coastal stretches is a common selected option for protecting valuable infrastructure and the hinterland. Nonetheless, the induced effects of these kinds of structures are still an open question that can be only answered by local means and remain unrevised for the area. In the present study an inventory of all the armored structures found along the Catalan coast was carried out. An approximate estimation of 110km of total armoured coast that accounts for 19% of the total Catalan coast was found and synthesized into eight associative structure-beach pattern groups by considering: morphological classification of beach and seawall characteristics. Los Vascos at the northern Ebro hemi delta and Sant Pol de Mar in the Maresme region were selected as representative sites of two of the associative structure-beach proposed groups for in depth analysis. A review of the reported effects accrued to structures on the adjacent beach found on literature was updated and tested at each representative site. The effects of found structures at each site were analyzed in the longshore and crosshore dimension through numerical simulations. For the longshore dimension, GENESIS (Generalized Model for Shoreline Changes) was used to simulate the changes in the plan shape due to longshore transport accounted for wave angle of approach and longshore gradient in wave height at both sites. Seasonal, yearly and long term analysis were performed, exhibiting differences in magnitudes of sediment transport rates and dominant mechanisms between sites as denoted by the different parameter values found during calibration .At Los Vascos the average net sediment transport was estimated in 37095.16m3/year where finer sediments are distributed by an almost unidirectional longshore current towards the northern part of the hemi delta. While for the case of Sant Pol de Mar, the sediments are redistributed in both north and south directions along the year, producing a relatively lower net average transport rate obtained in 14785.47m3. Through simulations with and without the presence of structures, the effects in the longshore transport and shoreline response accrued to the structures only were found. Maximum beach erosion and areas of influence were obtained. Expected effects in the long term were found through 10 years simulations. Furthermore, variations in 0.25m and 0.5m water level increments, 5% and 10% Hs and Tp increments, and 5% and 10% storm frequency increments were tested individually and in combination for the year 2057 as possible future conditions. An additional sensitive analysis was gained during the future condition simulations. Increments in storm frequency as the main driver for shoreline change resulted in higher shoreline variability than water level increments. As expected, combinations in 10% increments of wave parameters (i.e., 10% Hs and 10% Tp ) simulations produced larger shoreline responses and it was proved that the Hs plays a dominant role in the longshore sediment transport. Furthermore, it was found that in places as Sant Pol de Mar where significant diffraction effects governs wave transformation, increments in wave period result in higher shoreline variability than increments in wave heights. iv As for the cross-shore dimension, the SBEACH model (Storm Induced Beach Change Numerical Model) was used to analyze the effects in the beach in front of the structures at each site. Formation of scour and beach width diminishing were successfully obtained in a qualitatively basis and proved to be the cross-shore induced effects when comparing theoretical non walled final profiles obtained through simulation. Moreover, higher insight was achieved regarding the obtained GENESIS responses by setup performing tests of the two available solutions of the one line analytical model developed by Hanson and Krauss (1987) fed by the most representative wave for Los Vascos site in morphological terms. The solution for a semi infinite wall where no flanking effect possible resembled in higher accurate manner the obtained GENESIS responses proving that this was the solution offered by the model. Finally, it was proven that if the erosion behind the structure and downdrift erosion are subjects to be quantitatively analyzed the solution for a semi infinite wall where flaking effect is possible can is very useful aid in addition with GENESIS simulations.
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:
Download or read book The Proceedings Of The Coastal Sediments 2015 written by Jun Cheng and published by World Scientific. This book was released on 2015-04-23 with total page 3129 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Proceedings contains over 260 papers on cutting-edge research presented at the eighth international Symposium on Coastal Sediment Processes, held May 11 - 15, 2015, in San Diego, California, USA. This technical specialty conference was devoted to promoting an interdisciplinary exchange of state-of-the-art knowledge among researchers in the fields of coastal engineering, geology, oceanography, and related disciplines, with the theme of Understanding and Working with Nature.Focusing on the physical aspects of the sediment processes in various coastal environments, this Proceedings provides findings from the latest research and newest engineering applications. Sessions covered a wide range of topics including barrier islands, beaches, climate and sea level, cohesive and noncohesive sediments, coastal bluffs, coastal marsh, dredged sediments, inlet and navigation channels, regional sediment management, river deltas, shore protection, tsunamis, and vegetation-sediment interaction. Several special sessions included: Relevant science for changing coastlines: A Tribute to Gary Griggs; North Atlantic Coast Comprehensive Study and post-super-storm Sandy work; long-term coastal evolution; barrier islands of Louisiana; sea-level rise and super storms in a warming world; predicting decadal coastal geomorphic evolution; and contrasting Pacific coastal behavior with El Niño Southern Oscillation (ENSO), are also featured.
Download or read book The Effects of Seawalls on Beaches written by James Fulton Tait and published by . This book was released on 1988 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book Ecology and Biodiversity of Benthos written by Prince S. Godson and published by Elsevier. This book was released on 2022-03-26 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecology and Biodiversity of Benthos provides insights into the characteristic features of marine and estuarine benthos that play an important role in coastal ecosystem functioning, a primary level in the food chain. The book provides the latest information on multidisciplinary reflections by various researchers studying the benthic community. Through the chapters, ecosystem services are explored as a way to share approaches and scientific methods to achieve knowledge-based sustainable planning and management of benthic ecosystems. This is a helpful guide for anyone working on marine and estuarine environments, and for those who need an introduction to benthic ecology. The book has a wide range of scientific coverage since it caters primarily to the requirement of marine ecologists, marine benthologists, EIA experts, aquatic researchers, scientists, teachers and research scholars. In addition to this, it also serves as a reference for postgraduate/undergraduate students studying aquatic ecosystems. - Includes analytical methods and detailed statistical interpretation for qualitative and quantitative analyses of marine and estuarine benthic community structures - Presents figures, schematic diagrams and photographs related to benthic diversity of coastal ecosystem to aid in understanding protocols for the assessment of the benthic community's structure and function - Includes case studies throughout each chapter to increase understanding of benthic communities
Download or read book Shore and Beach written by and published by . This book was released on 1996 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances In Coastal And Ocean Engineering Vol 1 written by Philip L-f Liu and published by World Scientific. This book was released on 1995-02-20 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this review series is to present critical commentaries on knowledge in the field of coastal and ocean engineering. Each article will review and illuminate the development of the scientific understanding of a specific engineering topic. Critical reviews on engineering designs and practices in different countries will also be included. The first volume of the review series is a collection of five papers reviewing a wide range of research topics in coastal engineering.The first paper, written by Yeh, discusses one of the fundamental issues concerning many fluid flow problems, namely, free surface boundary conditions. In the second paper, a survey on another boundary dynamics, the seafloor dynamics is presented. Foda reviews recent studies on the nonlinear wave energy transfer into the seabed and different modes of wave-induced sediment fluidization processes in cohesive as well as in noncohesive seabeds. Several issues concerning the interactions between sediment deposit and marine structures, such as pipeline and breakwater, are also briefly reviewed. One of the active research areas in modeling wave propagation is the construction of a unified model which is valid from deep water to shallow water. Liu discusses several existing models. The sediment movement in the surf zone is a complex system. It can usually be decomposed into the longshore and the cross-shore components. Dean focused his discussion on the cross-shore sediment transport process. In the last paper, van der Meer presents a comprehensive review of the design consideration for a rubble mound breakwater. Both hydraulic and structural responses are discussed. Design formulas and graphs are presented, which can be used for a conceptual design of rubble mount breakwater.
Download or read book The Urban Ocean written by Alan F. Blumberg and published by Cambridge University Press. This book was released on 2018-11 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the physics of the coastal ocean, for advanced students, researchers, urban planners, and environmental engineers.
Download or read book Barrier Island Erosion and Overwash Study written by Rajesh Srinivas and published by . This book was released on 1992 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laboratory Study of the Effect of Sea Walls on Beach Erosion written by Paul Markert Moody and published by . This book was released on 1995 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Voeding en ziekten bij vogels written by and published by . This book was released on 1975 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wallops Flight Facility Shoreline Restoration and Infrastructure Protection Program written by and published by . This book was released on 2010 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sea Level Rise for the Coasts of California Oregon and Washington written by National Research Council and published by National Academies Press. This book was released on 2012-12-06 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tide gauges show that global sea level has risen about 7 inches during the 20th century, and recent satellite data show that the rate of sea-level rise is accelerating. As Earth warms, sea levels are rising mainly because ocean water expands as it warms; and water from melting glaciers and ice sheets is flowing into the ocean. Sea-level rise poses enormous risks to the valuable infrastructure, development, and wetlands that line much of the 1,600 mile shoreline of California, Oregon, and Washington. As those states seek to incorporate projections of sea-level rise into coastal planning, they asked the National Research Council to make independent projections of sea-level rise along their coasts for the years 2030, 2050, and 2100, taking into account regional factors that affect sea level. Sea-Level Rise for the Coasts of California, Oregon, and Washington: Past, Present, and Future explains that sea level along the U.S. west coast is affected by a number of factors. These include: climate patterns such as the El Niño, effects from the melting of modern and ancient ice sheets, and geologic processes, such as plate tectonics. Regional projections for California, Oregon, and Washington show a sharp distinction at Cape Mendocino in northern California. South of that point, sea-level rise is expected to be very close to global projections. However, projections are lower north of Cape Mendocino because the land is being pushed upward as the ocean plate moves under the continental plate along the Cascadia Subduction Zone. However, an earthquake magnitude 8 or larger, which occurs in the region every few hundred to 1,000 years, would cause the land to drop and sea level to suddenly rise.
Download or read book Coastal Dynamics 95 written by William R. Dally and published by . This book was released on 1996 with total page 1084 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ninety-two proceedings papers from the 1995 conference reviewing large-scale field and laboratory experiments in the European Community, Japan, the US, and the former Soviet-Bloc countries of Russia, Bulgaria, East Germany, and Poland. These volume particularly features the discussions from those latter countries since most of their experiments have not been, until now, released to the West. In more specific terms, the papers report findings in wave motion in vegetated and non-vegetated coastal zone, surf zone modeling, planform considerations of beach nourishment, swash dynamics, runup, low- frequency motion, longshore currents, cross-shore transport, and profile evolution. Annotation copyright by Book News, Inc., Portland, OR
Download or read book Realistic Prediction of Beach Nourishment Performance written by Chul-Hee Yoo and published by . This book was released on 1993 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
