Download or read book Morphological and Longshore Sediment Transport Processes on Mixed Beaches written by Jérôme Curoy and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Mixed beaches, with sediment sizes ranging over three orders of magnitude, are an increasingly important coastal defence on the heavily populated coasts of SE England and N France. Yet longshore transport rates and volumes, important in understanding beach sustainability, remain understudied for such beaches. This thesis addresses the knowledge gap via field investigations of beach profile evolution, active layer measurements and tracer pebble scattering patterns on two macrotidal mixed beaches at Cayeux-sur-Mer (France) and Birling Gap (UK), eastern English Channel. The beach topography data at both sites enabled observation of how reactive the beach profile is to hydrodynamic conditions. Each beach, in different environmental conditions, was found to have a profile that responded extremely quickly to changing hydrodynamics as a result of the combined effects of the High Water Level (HWL) and wave height. The most significant topographical changes are associated primarily with variations in the across-shore position and height of the berm. The research contributes new baseline data to help refine the currently limited understanding of the relationship between depth of disturbance and wave height, wave period, wave direction and the degree of mixture on mixed beaches. Consistent patterns of pebble behaviour were identified during each tidal cycle at different locations on the beach profile. The distance travelled varied with location on the beach profile, with pebbles from the upper beach tending to travel further than pebbles placed on lower parts of the beach. Upper beach pebbles generally showed a clear displacement seaward across-shore whereas lower and middle beach pebbles were affected by shorter across-shore displacements. These displacements are explained by variations in the hydrodynamic conditions, swash flows, groundwater flow, beach slope and grain size. Finally, wave conditions and water level directly influenced the Longshore Sediment Transport (LST) rates. From these results, applying the energy flux approach, a drift coefficient (K) of 0.04 was derived for both sites.

Download or read book Sandy Beach Morphodynamics written by Derek Jackson and published by Elsevier. This book was released on 2020-06-03 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sandy beaches represent some of the most dynamic environments on Earth and examining their morphodynamic behaviour over different temporal and spatial scales is challenging, relying on multidisciplinary approaches and techniques. Sandy Beach Morphodynamics brings together the latest research on beach systems and their morphodynamics and the ways in which they are studied in 29 chapters that review the full spectrum of beach morphodynamics. The chapters are written by leading experts in the field and provide introductory level understanding of physical processes and resulting landforms, along with more advanced discussions. Includes chapters that are written by the world's leading experts, including the latest up-to-date thinking on a variety of subject areas Covers state-of-the-art techniques, bringing the reader the latest technologies/methods being used to understand beach systems Presents a clear-and-concise description of processes and techniques that enables a clear understanding of coastal processes

Download or read book Principles of Coastal Morphology written by L. C. van Rijn and published by . This book was released on 1998 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mechanics Of Coastal Sediment Transport written by Jorgen Fredsoe and published by World Scientific Publishing Company. This book was released on 1992-11-02 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book treats the subject of sediment transport in the marine environment, covering transport of noncohesive sediment by waves and currents in- and outside the surf zone. It can be read independently, but a background in hydraulics and basic wave mechanics is required.The primary aim of the book is to describe the physical processes of sediment transport and how to represent them in mathematical models. The book can be divided in two main parts; in the first, the relevant hydrodynamic theory is described. This part contains a review of elementary theory for water waves, chapters on the turbulent wave boundary layer and the turbulent interaction between waves and currents, and finally, surf zone hydrodynamics and wave driven currents.The second part covers sediment transport and morphological development.The part on sediment transport introduces the basic concepts (critical bed shear stress, bed load, suspended load and sheet layer, near-bed concentration, effect of sloping bed); it treats suspended sediment in waves and current and in the surf zone, and current and wave-generated bed forms. Finally, the modelling of cross-shore and long-shore sediment transport is described together with the development of coastal profiles and coastlines.

Download or read book The Proceedings of the Coastal Sediments 2011 written by Ping Wang and published by World Scientific. This book was released on 2011 with total page 2751 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings contains nearly 200 papers on cutting-edge research presented at the seventh international Symposium on Coastal Engineering and Science of Coastal Sediment Processes, held May 2OCo6, 2011, in Miami, Florida, 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 a theme of bringing together theory and practice. Focusing on the physical aspects of sediment processes in various coastal environments, this three-volume conference proceedings provides findings from the latest research and newest engineering applications. Session topics cover a wide range including barrier-island morphodynamics and evolution, beach nourishment and shore protection, coastal dunes, cohesive sediment transport, field and laboratory measurements of sediment transport processes and numerical modeling, gravel transport, large-scale and long-term coastal changes, LiDAR and remote sensing, longshore and cross-shore sediment transport, marsh and wetlands, regional sediment management, river deltas, sea-level changes, shelf and sand bodies, shoreline changes, tidal inlets and navigation channels. A special session on recent research findings at the Northern Gulf of Mexico is also included."

Download or read book Hydrodynamics Sediment Transport and Daily Morphological Development of a Bar beach System written by Felix C. J. Wolf and published by . This book was released on 1997 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sediments Morphology and Sedimentary Processes on Continental Shelves written by Michael Z. Li and published by John Wiley & Sons. This book was released on 2012-02-20 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: The application of multibeam and sediment transport measurement technologies and the adoption of multi-faceted research methodologies have greatly advanced our understanding of the sedimentary processes on continental shelves in the last decade. This book uniquely blends cutting-edge research and state-of-the art review articles that take stock of new advances in multibeam mapping and sediment transport technologies, spatial analysis and modelling, and the applications of these advances to the understanding of shelf sediments, morphodynamics, and sedimentary processes. Case studies are also presented to illustrate the utilization of seabed property and process knowledge in habitat mapping and ocean management With its mix of papers focusing on technological advances, integration of shelf morphology and processes, and the application of these advances to coastal and ocean management, this Special Publication volume will serve as a milestone reference for professional marine scientists and as advanced text for students in marine geology, sedimentology and oceanography. This book is part of the International Association of Sedimentologists (IAS) Special Publications. The Special Publications from the IAS are a set of thematic volumes edited by specialists on subjects of central interest to sedimentologists. Papers are reviewed and printed to the same high standards as those published in the journal Sedimentology and several of these volumes have become standard works of reference.

Download or read book Beach Processes and Sedimentation written by Paul D. Komar and published by Prentice Hall. This book was released on 1976 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduces beach processes within an approach that balances an engineering perspective against a purely geological one. Provides an up-to-date review of the current understanding of beach processes as well as applications to solve coastal problems (erosion, management issues, etc.). Discusses issues related to beach erosion and other processes. The second edition of Beach Processes and Sedimentation has been updated to include information gathered from two decades of science and engineering in the field, reflecting the vast increase in knowledge since the first edition. Discusses the rise of coastal zone management as well as patterns of wave transformations and dissipation within the surf zone, and how these water motions produce cross-shore movements of sediment resulting in beach-profile variations. An essential reference book for many readers: from beach front property owners to politicians contending with beachfront erosion to engineers addressing beachfront reclamation projects.

Download or read book Sediment Transport Processes at a Nourished Beach written by Paul A. Work and published by . This book was released on 1992 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sediment Transport Processes and Coastal Management of Mixed Sand and Gravel Beaches written by Xiao Wei Yu and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Morphodynamics of Mediterranean Mixed Sand and Gravel Coasts written by Miguel Ortega-Sánchez and published by Springer. This book was released on 2017-01-07 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes recent advances in the morphodynamics of mixed sand and gravel Mediterranean coasts, and provides updates and new methods for their study and management. It assesses how the differences in the geomorphic setting, in comparison with traditional sandy beaches, result in distinctive physical processes governing the dynamics of these coasts. Further, on the basis of field measurements, theoretical analysis and numerical modeling carried out at two study sites in southern Spain over the last 15 years, the book studies, analyzes and compares these physical processes and mechanisms. It also shows that the narrow and complex bathymetries and inner shelves modify the wave propagation patterns and hence, the longshore sediment transport gradients along the coast. Given the correlation between the changes in these gradients and the shoreline evolution over time, it identifies the complexity of the inner shelf bathymetries as the main driver of coastal changes and describes these processes in detail using, in the plan view, the inter-annual evolution of unaltered and “altered by human” beaches. Lastly, the book details how the generation and subsequent overlapping of berms across the beach profile are responsible for the sediment variability at depth and cross-shore, and concludes that the total run-up (including the water-level) is a more influential variable than wave height in the erosional/depositional response of these beaches.

Download or read book Cohesive Sediments written by Neville Burt and published by . This book was released on 1997-04-03 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is an alarming tendency today to assume that something calculated by a computer must be correct, yet the phrase 'garbage in, garbage out' (gigo) is possibly nowhere more (generally) appropriate than in computer modelling of cohesive sediment behaviour. The behaviour of 'mud' is highly complex and one only needs to look at a sample under a microscope to see why - the variety of particle shapes, not to mention the presence of living organisms, make it a substance with properties virtually unique to its situation which even change with time. For many years most researchers tended to avoid it, preferring to study sand and gravel, but a dedicated few tackled it and found a forum for discussing their work in the first Cohesive Sediments Workshop in Florida in 1980. The workshop met about every three years resulting in publication of some of the most definitive papers on the subject. By 1994 it was time to recognise the extensive research being carried on in Europe by holding the workshop in that region. Intercoh '94 (the 4th Nearshore and Estuarine Cohesive Sediment Transport Conference) drew together about 100 of the world's leading researchers in the field. The resulting papers, presented in this volume, truly represent the definitive state of the art on the measurement and modelling of mud properties today.

Download or read book Introduction to Coastal Processes and Geomorphology written by Robin Davidson-Arnott and published by Cambridge University Press. This book was released on 2019-09-19 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grounded in current research, this second edition has been thoroughly updated, featuring new topics, global examples and online material. Written for students studying coastal geomorphology, this is the complete guide to the processes at work on our coastlines and the features we see in coastal systems across the world.

Download or read book The Proceedings of the Coastal Sediments 2011 written by Ping Wang and published by World Scientific. This book was released on 2011-01-01 with total page 921 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings contains nearly 200 papers on cutting-edge research presented at the seventh international Symposium on Coastal Engineering and Science of Coastal Sediment Processes, held May 26, 2011, in Miami, Florida, 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 a theme of bringing together theory and practice. Focusing on the physical aspects of sediment processes in various coastal environments, this three-volume conference proceedings provides findings from the latest research and newest engineering applications. Session topics cover a wide range including barrier-island morphodynamics and evolution, beach nourishment and shore protection, coastal dunes, cohesive sediment transport, field and laboratory measurements of sediment transport processes and numerical modeling, gravel transport, large-scale and long-term coastal changes, LiDAR and remote sensing, longshore and cross-shore sediment transport, marsh and wetlands, regional sediment management, river deltas, sea-level changes, shelf and sand bodies, shoreline changes, tidal inlets and navigation channels. A special session on recent research findings at the Northern Gulf of Mexico is also included.

Download or read book Sediment Fluxes in Coastal Areas written by Mohamed Maanan and published by Springer. This book was released on 2014-10-28 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a detailed analysis and synthesis of the processes affecting sediments fluxes from watershed to worldwide coastal systems. The volume provides a comprehensive overview and constitutes a systematic description of the response of coastal systems to global and local changes, like climate change, sea level, land use and land cover change. The case studies cover a sequence of coastal environments such as lagoons, bays, estuaries, deltas and beaches. Sediment Fluxes in Coastal Areas is designed for researchers, professionals and for course-use in hydrology, oceanography, geography, geology, geomorphology and environmental science.

Download or read book Waves on Beaches and Resulting Sediment Transport written by R. E. Meyer and published by Elsevier. This book was released on 2013-09-24 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Waves on Beaches and Resulting Sediment Transport documents the proceedings of an Advanced Seminar held in October, 1971, aiming to offer a coherent, interdisciplinary view of the state of physical research in coastal oceanography and the direction in which this subject is moving. The articles range from wave refraction to littoral erosion, and the authors from geologists to mathematicians. The book opens with a study on the characteristics of wave records in the coastal zone. This is followed by separate chapters on sediment transport in beaches; equations for water waves; small-amplitude normal oscillations of a liquid body; and wave behavior near caustics in models and in nature. Subsequent chapters deal with nonlinear wave interaction in a variety of physical phenomena including deep water waves; the study of longshore currents; sediment suspension by periodic waves; forms of sediment accumulation in the beach zone; run-up on beaches; and the wave breaking process in shallow water.

Download or read book Mitigating Shore Erosion Along Sheltered Coasts written by National Research Council and published by National Academies Press. This book was released on 2007-05-04 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: Like ocean beaches, sheltered coastal areas experience land loss from erosion and sea level rise. In response, property owners often install hard structures such as bulkheads as a way to prevent further erosion, but these structures cause changes in the coastal environment that alter landscapes, reduce public access and recreational opportunities, diminish natural habitats, and harm species that depend on these habitats for shelter and food. Mitigating Shore Erosion Along Sheltered Coasts recommends coastal planning efforts and permitting policies to encourage landowners to use erosion control alternatives that help retain the natural features of coastal shorelines.