Fine Sediment Dynamics In The Marine Environment
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Fine Sediment Dynamics In The Marine Environment
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Author : Johan C. Winterwerp
language : en
Publisher: Elsevier
Release Date : 2002-06-05
Fine Sediment Dynamics In The Marine Environment written by Johan C. Winterwerp and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-06-05 with Science categories.
Cohesive sediment, or mud, is encountered in most water bodies throughout the world. Often mud is a valuable resource, synonymous with fertile land, enriching the natural environment and used as an important building material. Yet mud also hinders navigation and consequently, dredging operations have been carried out since ancient times to safeguard navigation. Unfortunately, many mud deposits are now contaminated, endangering the eco-system and increasing the costs of dredging operations. The transport and fate of mud in the environment are still poorly understood and the need for basic research remains. This text contains the proceedings of the INTERCOH-2000 conference on progress in cohesive sediment research. It was the sixth in a series of conferences initially started by Professor Ashish Mehta in 1984 as a "Workshop on Cohesive Sediment Dynamics with Special Reference to the Processes in Estuaries". During these conferences the character of the first workshop has always been maintained, that is, small scale and dedicated to the physical and engineering aspects of cohesive sediments, without parallel sessions, but with ample time for discussions during and after the presentations, and followed by a book of proceedings containing thoroughly reviewed papers. INTERCOH-2000 was integrated with the final workshop of the COSINUS project. This project was carried out as a part of the European MAST-3 programme, and almost all European cohesive sediment workers were involved. INTERCOH-2000 focused on the behaviour and modelling of concentrated benthic suspensions, i.e. high-concentrated near-bed suspensions of cohesive sediment. Special attention was paid to: sediment - turbulence interaction; flocculation and settling velocity; high-concentrated mud suspensions; processes in the bed - consolidation; processes on the bed - erosion; field observations on mud dynamics; instrumentation; and numerical modelling.
Introduction To The Physics Of Cohesive Sediment Dynamics In The Marine Environment
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Author : Johan C. Winterwerp
language : en
Publisher: Elsevier
Release Date : 2004-08-20
Introduction To The Physics Of Cohesive Sediment Dynamics In The Marine Environment written by Johan C. Winterwerp and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-08-20 with Science categories.
This book is an introduction to the physical processes of cohesive sediment in the marine environment. It focuses on highly dynamic systems, such as estuaries and coastal seas. Processes on the continental shelf are also discussed and attention is given to the effects of chemistry, biology and gas.The process descriptions are based on hydrodynamic and soil mechanic principles, which integrate at the soil-water interface. This approach is substantiated through a classification scheme of sediment occurrences in which distinction is made between cohesive and granular material. Emphasis is also placed on the important interactions between turbulent flow and cohesive sediment suspensions, and on the impact of flow-induced forces on the stability of the seabed. An overview of literature on cohesive sediment dynamics is presented and a number of new developments are highlighted, in particular in relation to floc formation, settling and sedimentation, consolidation, bed failure and liquefaction and erosion of the bed. Moreover, it presents a summary on methods and techniques to measure the various sediment properties necessary to quantify the various parameters in the physical-mathematical model descriptions. A number of examples and case studies have been included.
Sediment And Ecohydraulics
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Author : Tetsuya Kusuda
language : en
Publisher: Elsevier
Release Date : 2007-12-18
Sediment And Ecohydraulics written by Tetsuya Kusuda and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-12-18 with Science categories.
Sediments and Ecohyraulics is comprised of papers submitted to the 6th International Conference on Cohesive Sediments (INTERCOH 2005) held in Saga, Japan, September 2005. The papers are divided into two major categories. The first is basic processes, including erosion, settling, flocculation, and consolidation. The second major catagory is application of the understanding of cohesive sediments to address specific issues, including waterway and part management, fluid mud behavior, and contaminiated sediment management.*Provides an up-to-date resource of the present knowledge of cohesive sediment transport processes*Contains practical solutions on cohesive transport problems*Presents information on managing cohesive sediments
Sediment Dynamics And Pollutant Mobility In Rivers
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Author : Bernd Westrich
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-10-11
Sediment Dynamics And Pollutant Mobility In Rivers written by Bernd Westrich and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-10-11 with Science categories.
This is the first interdisciplinary book on the mobilization of nutrients and pollutants in the water phase due to hydrodynamic processes. Coverage includes the formation of aggregates in turbulent water; flocks and biofilms from organic reactions; and the formation of new surfaces for re-adsorption of dissolved pollutants. The book gathers papers resulting from an International Symposium on Sediment Dynamics and Pollutant Mobility in River Basins in Hamburg, Germany, March, 2006.
Multiple Scales Of Suspended Sediment Dynamics In A Complex Geometry Estuary
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Author : Fernanda Achete
language : en
Publisher: CRC Press
Release Date : 2020-04-22
Multiple Scales Of Suspended Sediment Dynamics In A Complex Geometry Estuary written by Fernanda Achete and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-04-22 with Science categories.
Many estuaries are located in urbanized, highly engineered environments. Cohesive sediment plays an important role due to its link with estuarine health and ecology. An important ecological parameter is the suspended sediment concentration (SSC) translated into turbidity levels and sediment budget. This study contributes to investigate and forecast turbidity levels and sediment budget variability at San Francisco Bay-Delta system at a variety of spatial and temporal scales applying a flexible mesh process-based model (Delft3D FM). It is possible to have a robust sediment model, which reproduces 90% of the yearly data derived sediment budget, with simple model settings, like applying one mud fraction and a simple bottom sediment distribution. This finding opens the horizon for modeling less monitored estuaries. Comparing two case studies, i.e. the Sacramento-San Joaquin Delta and Alviso Slough, a classification for estuaries regarding the main sediment dynamic forcing is proposed: event-driven estuary (Delta) and tide-driven estuary (Alviso Slough). In the event-driven estuaries, the rivers are the main sediment source and the tides have minor impact in the net sediment transport. In the tide-driven estuaries, the main sediment source is the bottom sediment and the tide asymmetry defines the net sediment transport. This research also makes advances in connecting different scientific fields and developing a managerial tool to support decision making. It provides the basis to a chain of models, which goes from the hydrodynamics, to suspended sediment, to phytoplankton, to fish, clams and marshes.
Sedimentation And Sediment Transport
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Author : A. Gyr
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-29
Sedimentation And Sediment Transport written by A. Gyr and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-29 with Science categories.
It is evident, that for a number of ecological and technical problems in rivers and lakes a better knowledge of sediment transport and sedimentation is needed together with the ability to predict and simulate sediment behaviour. On the other hand, a stagnation of research in these topics could be observed in the last decades. At the Symposium an attempt was made to present new results in mathematics and natural sciences relevant for the sediment problem. New strategies were discussed to tackle the complexity of the problem. Basic theoretical research and laboratory experiments alone are incomplete without a feedback from field observations and measurements. For that reason well-known researchers from both basic and engineering sciences were invited. Turbulence, non-local phenomena, stability, interaction, feedback systems, self-organization, two-phase flow and chaotic processes, numerical simulations as well as measurement techniques and field results were the keywords of the Symposium. This proceedings are a good source for those interested in the state of the art.
Estuarine And Coastal Hydrography And Sediment Transport
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Author : R. J. Uncles
language : en
Publisher: Cambridge University Press
Release Date : 2017-08-17
Estuarine And Coastal Hydrography And Sediment Transport written by R. J. Uncles and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-17 with Nature categories.
A practical guide to the latest techniques to measure sediments, seabed, water and transport mechanisms in estuaries and coastal waters. Covering a broad range of topics, enough background is included to explain how each technology functions. A review of recent fieldwork experiments demonstrates how modern methods apply in real-life scenarios.
Sediment Transport
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Author : Andrew Manning
language : en
Publisher: BoD – Books on Demand
Release Date : 2013-03-13
Sediment Transport written by Andrew Manning and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-13 with Science categories.
Sediment Transport Processes and their Modelling Applications is a book which covers a wide range of topics. The effective management of many aquatic environments, requires a detailed understanding of sediment dynamics. This has both environmental and economic implications, especially where there is any anthropogenic involvement. Numerical models are often the tool used for predicting the transport and fate of sediment movement in these situations, as they can estimate the various spatial and temporal fluxes. However, the physical sedimentary processes can vary quite considerably depending upon whether the local sediments are fully cohesive, non-cohesive, or a mixture of both types. For this reason for more than half a century, scientists, engineers, hydrologists and mathematicians have all been continuing to conduct research into the many aspects which influence sediment transport. These issues range from processes such as scour, erosion and deposition, to how sediment process observations can be applied in sediment transport modelling frameworks. This book reports the findings from recent research in applied sediment transport which has been conducted in a wide range of aquatic environments. The research was carried out by researchers who specialise in the transport of sediments and related issues.
Wave Forced Sediment Erosion And Resuspension In The Yellow River Delta
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Author : Yonggang Jia
language : en
Publisher: Springer
Release Date : 2019-04-01
Wave Forced Sediment Erosion And Resuspension In The Yellow River Delta written by Yonggang Jia and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-04-01 with Science categories.
This book focuses on the phenomenon of sediment erosion and resuspension in the Yellow River delta, China, which is a vital issue involved in understanding the sediment transport processes in estuarine and coastal environments, and how these contribute to the nature and distribution of geohazards in the subaqueous Yellow River delta and Bohai Sea. The most important sections of this book will be the detailed physical mechanisms and theoretical models of sediment erosion and resuspension problem fully considering the wave-induced seabed dynamic response to waves, which are particularly useful for postgraduate students and junior researchers entering the discipline of estuary and coastal sedimentation, marine geotechnical engineering, estuary and coastal engineering, harbor and waterway engineering and coastal environmental protection. This book can also serve as a textbook for advanced graduate students of Marine Engineering Geology and Estuarine Sediment Dynamics.
Erosion And Sediment Transport Measurement In Rivers
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Author : Jim Bogen
language : en
Publisher:
Release Date : 2003
Erosion And Sediment Transport Measurement In Rivers written by Jim Bogen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Science categories.