Fine Sediment Dynamics in the Marine Environment

Fine Sediment Dynamics in the Marine Environment PDF Author: Johan C. Winterwerp
Publisher: Elsevier
ISBN: 0080531660
Category : Science
Languages : en
Pages : 731

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Book Description
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.

Advances in River Sediment Research

Advances in River Sediment Research PDF Author: Shoji Fukuoka
Publisher: CRC Press
ISBN: 1315856581
Category : Science
Languages : en
Pages : 228

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Book Description
Sediments, which constitute the surface of the Earth, start their journey to rivers with the energy obtained from rainfalls, fl oods and other natural processes. Due to transport of sediments, rivers develop with various appearances and functions, and play a crucial role in the activities of human beings and the life cycles of other species. River

Erosion and Sediment Transport Measurement in Rivers

Erosion and Sediment Transport Measurement in Rivers PDF Author: Jim Bogen
Publisher:
ISBN: 9781901502428
Category : Science
Languages : en
Pages : 252

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Book Description


Fluvial Hydrodynamics

Fluvial Hydrodynamics PDF Author: Subhasish Dey
Publisher: Springer
ISBN: 3642190626
Category : Science
Languages : en
Pages : 706

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Book Description
The state-of-the-art in fluvial hydrodynamics can be examined only through a careful exploration of the theoretical development and applied engineering technology. The book is primarily focused, since most up-to-date research findings in the field are presented, on the research aspects that involve a comprehensive knowledge of sediment dynamics in turbulent flows. It begins with the fundamentals of hydrodynamics and particle motion followed by turbulence characteristics related to sediment motion. Then, the sediment dynamics is analysed from a classical perspective by applying the mean bed shear approach and additionally incorporating a statistical description for the role of turbulence. The work finally examines the local scour problems at hydraulic structures and scale models. It is intended to design as a course textbook in graduate / research level and a guide for the field engineers as well, keeping up with modern technological developments. Therefore, as a simple prerequisite, the background of the readers should have a basic knowledge in hydraulics in undergraduate level and an understanding of fundamentals of calculus.

Sediment Transport Research - Further Recent Advances

Sediment Transport Research - Further Recent Advances PDF Author: Andrew J. Manning
Publisher: BoD – Books on Demand
ISBN: 0854665544
Category : Science
Languages : en
Pages : 188

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Book Description
The effective governance and administration of many aquatic and terrestrial environments requires a detailed understanding of sediment transport and its behavioral dynamics. This has both environmental and economic implications, especially where there is any anthropogenic involvement. Sedimentary processes such as erosion, scour, deposition, and consolidation can fluctuate depending on whether their compositional matrix is purely cohesive, noncohesive, or a combination of both types. With many contributing factors, the prediction of sedimentary movement is often made using numerical modeling tools, as they can estimate the various spatial and temporal fluxes. However, due to the complex behavior of natural sediments, scientists and other specialists continue to conduct research into the many aspects that influence sediment transport. Sediment Transport Research - Further Recent Advances is a book that draws on the most recent world-class scientific research on sediment transport topics, including computational fluid dynamics, numerical modeling, particle properties and characteristics, beach morphology, soil erosion, flocculation processes, sand nourishment, geomorphology, water quality aspects, sedimentary-related legislation, and many more. The research was carried out by researchers who specialize in sediment transport and related processes.

Estuarine and Coastal Fine Sediment Dynamics

Estuarine and Coastal Fine Sediment Dynamics PDF Author: Jerome Maa
Publisher: Elsevier
ISBN: 0080464696
Category : Technology & Engineering
Languages : en
Pages : 537

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Book Description
This volume is the product of the International Conference on Cohesive Sediment Transport (INTERCOH 2003) held at the Virginia Institute of Marine Science, U.S.A., during October 1-4, 2003. The topics included in this monograph range from basic research on cohesive sediment dynamics to practical applications. Also included with this book is a database that contains all experimental results as well as a comparison of numerical simulation results supported by the COSINUS project.* Provides fundamental knowledge of the dynamics of cohesive sediments* Presents practical applications of new finds on sedimentary processes* Includes valuable ready-for-use data

A Guide to the Proper Selection and Use of Federally Approved Sediment and Water-quality Samplers

A Guide to the Proper Selection and Use of Federally Approved Sediment and Water-quality Samplers PDF Author: Broderick E. Davis
Publisher:
ISBN:
Category : Sediment transport
Languages : en
Pages : 28

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Book Description


Sedimentation Control to Reduce Maintenance Dredging of Navigational Facilities in Estuaries

Sedimentation Control to Reduce Maintenance Dredging of Navigational Facilities in Estuaries PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309077958
Category : Science
Languages : en
Pages : 352

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Book Description


Residual Currents and Long-term Transport

Residual Currents and Long-term Transport PDF Author: Ralph T. Cheng
Publisher: Springer
ISBN: 9780387973760
Category : Science
Languages : en
Pages : 0

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Book Description
Estuaries, bays and contiguous coastal seas are the world's most valuable, and yet most vulnerable marine ecosystems. Fundamental to the protection and management of these important resources is an understand- ing of the physical processes involved which affect the circulation, mixing, and transport of salt, nutrients and sediment. Residual Currents and Long-Term Transport processes appear to have direct control over freshwater inflows, contaminant loadings, dispersion and transport of sediments and nutrients, and causes of declining living resources. This volume provides a comprehensive and up-to-date summary of the research results on these processes in estuaries and bays. Contributions from ten countries include results based on theoretical formulations, analyses of field data, numerical models and case studies.

Sediments, Morphology and Sedimentary Processes on Continental Shelves

Sediments, Morphology and Sedimentary Processes on Continental Shelves PDF Author: Michael Z. Li
Publisher: John Wiley & Sons
ISBN: 144435082X
Category : Science
Languages : en
Pages : 442

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Book Description
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.