Introduction To The Physics Of Cohesive Sediment Dynamics In The Marine Environment
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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.
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.
Sediment Dynamics And Geohazards In Estuaries And Deltas
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Author : Xiaolei Liu
language : en
Publisher: Frontiers Media SA
Release Date : 2023-02-17
Sediment Dynamics And Geohazards In Estuaries And Deltas written by Xiaolei Liu and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-02-17 with Science categories.
The Lifetime Of Methane Bubbles Through Sediment And Water Column
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Author : Regina Katsman
language : en
Publisher: Frontiers Media SA
Release Date : 2022-09-21
The Lifetime Of Methane Bubbles Through Sediment And Water Column written by Regina Katsman and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-09-21 with Science categories.
Cohesive Sedimentary Systems Dynamics And Deposits
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Author : Andrew James Manning
language : en
Publisher: Frontiers Media SA
Release Date : 2024-01-30
Cohesive Sedimentary Systems Dynamics And Deposits written by Andrew James Manning and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-01-30 with Science categories.
Estuary Research
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Author : Andrew J. Manning
language : en
Publisher: BoD – Books on Demand
Release Date : 2025-03-12
Estuary Research written by Andrew J. 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 2025-03-12 with Science categories.
Estuaries are among the most sensitive and widely exploited territorial habitats on Earth. Although predominantly shallow aquatic environments, estuaries are extremely important socio-economically, and their usage places ever-increasing stresses on these habitats, especially where there is any anthropogenic involvement. The effective governance and administration of estuarial regions often requires an intricate scientific understanding of the various contributary natural processes. Estuary Research - Recent Advances is a book that draws on the most recent world-class scientific research on estuarine topics, including geomorphology, analysis of shoreline changes, anthropogenic stresses, rare earth elements, salt marsh and intertidal areas, water quality, climate change
Dynamics Of Coastal Systems Second Edition
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Author : Job Dronkers
language : en
Publisher: World Scientific
Release Date : 2016-08-19
Dynamics Of Coastal Systems Second Edition written by Job Dronkers and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-19 with Technology & Engineering categories.
The book provides a comprehensive and up-to-date overview of the physical processes which, according to the present state of knowledge, determine the evolution of coastal systems and their response to human interventions. This response depends to a large degree on the self-organising properties of coastal dynamics, which form a leading theme throughout the book. The basic theoretical ideas are explained in text and figures and also in formulas for the more mathematically inclined reader. Theories are illustrated with examples from estuaries, coastal lagoons, beaches and tidal flat systems from all over the world. The rules and simple models can be used directly without relying on complex computations; much attention is given to the strengths and weaknesses of the underlying theories and their limits of applicability. The book is fully self-contained; some knowledge of basic physics and mathematics is recommended. The book is an upgrade of the first edition. Most parts are rewritten and chapters are added to incorporate research results, new insight and experience of the past ten years. This book is intended for everyone interested in coastal systems for professional or educational reasons.
The Use Of Delft3d To Simulate The Deposition Of Cohesive And Non Cohesive Sediments In Irrigation Systems
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Author : Shaimaa Abd Al-Amear Theol
language : en
Publisher: CRC Press
Release Date : 2020-03-13
The Use Of Delft3d To Simulate The Deposition Of Cohesive And Non Cohesive Sediments In Irrigation Systems written by Shaimaa Abd Al-Amear Theol and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-13 with Science categories.
Sediment deposition threatens the performance of many irrigation systems. Because of the high impact on irrigation performance and crop production, many studies have been done on how to deal with sediment deposition. In this research, the Delft3D model, originally developed for hydro-morphologic modeling of rivers and estuaries, was adapted for the use in irrigation systems simulations and applied to different case studies. This research addresses two shortcomings of previous studies of sediments in irrigation systems. Firstly, while previous studies primarily used 1D models, this research uses a 2D/3D model. The use of 2D/3D models in irrigation systems is significant because the non-uniform flow around structures such as offtakes, weirs and gates, leads to asymmetric sedimentation patterns that are missed by 1D simulations. Secondly, whereas previous studies mostly considered non-cohesive sediments, this research simulates cohesive, non-cohesive and a mix of both sediment types. This is important for irrigation systems that draw water from natural rivers that carry a mix of cohesive and non-cohesive sediments. The findings of this research are important for irrigation system maintenance and gate operation. It is also essential for the development of canal operating plans that meet crop water requirements and at the same time minimizes sediment deposition by alternating gates.
Selected Papers From The 13th Estuarine And Coastal Modeling Conference
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Author : Henry J. Bokuniewicz
language : en
Publisher: MDPI
Release Date : 2018-10-02
Selected Papers From The 13th Estuarine And Coastal Modeling Conference written by Henry J. Bokuniewicz and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-02 with Electronic books categories.
This book is a printed edition of the Special Issue "Selected Papers from the 13th Estuarine and Coastal Modeling Conference" that was published in JMSE
Proceedings Of The 2nd International Conference On Climate Change And Ocean Renewable Energy
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Author : Soufiane Haddout
language : en
Publisher: Springer Nature
Release Date : 2024-10-03
Proceedings Of The 2nd International Conference On Climate Change And Ocean Renewable Energy written by Soufiane Haddout and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-10-03 with Science categories.
Renewable energy is energy that is collected from renewable resources that are naturally replenished on a human timescale. It includes sources such as sunlight, tides, waves, wind, rain, and geothermal heat. According to BP's-2018 Energy Outlook (EO), renewable energy will be the fastest growing source of energy, increasing fivefold by 2040, thus providing around 14% of global primary energy at this future point in time. On the other hand, climate change is bringing about rising temperatures, which has significant negative impacts on humans and the environment, and transitioning to renewable energy sources, such as biofuels, can help meet this challenge. Transitioning to renewable energy, and reducing reliance on fossil fuels, is one way to help slow down the effects of climate change. While renewables used to be a more expensive option, new clean energy technologies are lowering costs and helping to move economies away from fossil fuels.