Calibration and Application of a Tidal-timescale Sediment Transport Model for Simulation of Estuarine Geomorphic Change Under Future Scenarios PDF Download
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Author: Neil Kamal Ganju
Publisher:
ISBN:
Category :
Languages : en
Pages : 476
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Book Description
Author: Neil Kamal Ganju
Publisher:
ISBN:
Category :
Languages : en
Pages : 476
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Book Description
Author: Neik K. Ganju
Publisher:
ISBN:
Category : Sediment transport
Languages : en
Pages : 40
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Book Description
Author: Vanesa Magar
Publisher: CRC Press
ISBN: 0429531591
Category : Science
Languages : en
Pages : 185
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Book Description
This reference for engineers, and graduate students covers sediment transport and morphodynamics modelling in nearshore environments. It presents the fundamentals required for understanding the physics and for setting up numerical models. This book covers hydrodynamics of estuarine and coastal environments, properties of seafloor and estuarine composition, and hydroenvironmental interactions; emphasising the inter-relations of small- and large-scale processes, and short- and large-evolution timescales. The focus is, principally, on the application of shallow-water theory, but some surface wave models, and coupling of shallow-water models with surface waves is also discussed to some extent. The guidance on running regional models and the case studies presented are directed to managed realignment, coastal protection, climate change impacts, and offshore renewables. Key features: Gives a balanced review of this rich interdisciplinary area Bridges practical engineering and research Offers both large- and small-scale application Suits graduate students and researchers as well as consulting engineers Vanesa Magar is a senior researcher and associate professor at the Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE) in Baja California, Mexico. She was formerly a researcher and then a lecturer at Plymouth University, UK.
Author: Vanesa Magar
Publisher: CRC Press
ISBN: 9781498753463
Category : Coast changes
Languages : en
Pages : 256
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Book Description
"This guide to sediment transport and morphodynamics modelling in nearshore environments covers hydrodynamics of estuarine and coastal environments, seafloor and estuarine composition, and hydro-environmental interactions; emphasising the inter-relations of small and large scale processes. For engineers and graduate students"--
Author: R. J. Uncles
Publisher: Cambridge University Press
ISBN: 1107040981
Category : Nature
Languages : en
Pages : 363
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Book Description
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.
Author: Malcolm L. Spaulding
Publisher: Amer Society of Civil Engineers
ISBN: 9780784411216
Category : Science
Languages : en
Pages : 784
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Book Description
This proceedings contains technical papers presented at the 11th International Conference on Estuarine and Coastal Modeling, held in Seattle, Washington, from November 4 to 6, 2009. The papers presented in this proceedings cover a variety of topics, including: ? specific estuarine and coastal system models ? model visualization, web services, and decision support ? modeling techniques ? Port of Anchorage expansion and deepening studies ? modeling of Lagrangian transport ? pollutant transport and water quality prediction ? tidal and tidal power modeling ? relative sea level rise ? wave and sediment transport modeling ? nowcast/forecast modeling systems ? storm modeling
Author: Fernanda Minikowski Achete
Publisher: CRC Press
ISBN: 0429605986
Category : Science
Languages : en
Pages : 201
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Book Description
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.
Author: Benoît Camenen
Publisher:
ISBN:
Category : Inlets
Languages : en
Pages : 252
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Book Description
The Coastal Inlets Research Program (CIRP) is developing predictive numerical models for simulating the waves, currents, sediment transport, and morphology change at and around coastal inlets. Water motion at a coastal inlet is a combination of quasi-steady currents such as river flow, tidal current, wind-generated current, and seiching, and of oscillatory flows generated by surface waves. Waves can also create quasi-steady currents, and the waves can be breaking or non-breaking, greatly changing potential for sediment transport. These flows act in arbitrary combinations with different magnitudes and directions to mobilize and transport sediment. Reliable prediction of morphology change requires accurate predictive formulas for sediment transport rates that smoothly match in the various regimes of water motion. This report describes results of a research effort conducted to develop unified sediment transport rate predictive formulas for application in the coastal inlet environment. The formulas were calibrated with a wide range of available measurements compiled from the laboratory and field and then implemented in the CIRP's Coastal Modeling System. Emphasis of the study was on reliable predictions over a wide range of input conditions. All relevant physical processes were incorporated to obtain greatest generality, including: (1) bed load and suspended load, (2) waves and currents, (3) breaking and non-breaking waves, (4) bottom slope, (5) initiation of motion, (6) asymmetric wave velocity, and (7) arbitrary angle between waves and current. A large database on sediment transport measurements made in the laboratory and the field was compiled to test different aspects of the formulation over the widest possible range of conditions. Other phenomena or mechanisms may also be of importance, such as the phase lag between water and sediment motion or the influence of bed forms. Modifications to the general formulation are derived to take these phenomena into account. The.
Author: Yasuo Onishi
Publisher:
ISBN:
Category : Chlordecone
Languages : en
Pages : 162
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Book Description
Author: Leicheng Guo
Publisher: CRC Press
ISBN: 9781138027503
Category : Science
Languages : en
Pages : 0
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Book Description
This research is dedicated to studying longterm estuarine morphodynamic behavior under combined river and tidal forcing. Analysis of river tides in the Yangtze River estuary (YRE) in China, schematized morphodynamic modeling in 1D and 2D mode and morphodynamic modeling of the YRE based on a process-based numerical model (Delft3D) are conducted. Morphodynamic sensitivities to river discharge magnitude and time variations, tidal strength and tidal constituents are then systematically explored. Analysis of river tides in the YRE reveals strong river-tide interactions and non-linear modulation of tides by river discharge. River discharge alters tidal asymmetries and resultant tidal residual sediment transport. Analysis of morphodynamic modeling results exposes significant mechanisms inducing tidal residual sediment transport and controlling long-term morphodynamic development. Morphodynamic equilibria in 1D and 2D simulations can be defined by vanishing gradients of tidal residual sediment transports and meeting empirical morphodynamic relationships. This research indicates the value of numerical modeling in examining long-term morphodynamic development in millennia time scale. Understanding of the controls on morphodynamic behavior in estuaries under river and tidal forcing is to the benefit of managing estuaries’ functions in a long-term point of view.
