Salt Intrusion Tides And Mixing In Multi Channel Estuaries

Author : Anh Duc Nguyen
Publisher : CRC Press
Page : 176 pages
File Size : 45,9 Mb
Release : 2008-11-01
Category : Science
ISBN : 9781439828342

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Salt Intrusion, Tides and Mixing in Multi-Channel Estuaries by Anh Duc Nguyen Pdf

Multi-channel estuaries, such as the Mekong Delta in Vietnam and the Scheldt in the Netherlands, have characteristics of both the river and the sea, forming an environment influenced by tidal movements of the sea and freshwater flow of the river. This study discusses a predictive analytical approach for salinity intrusion and discharge estimate in multi-channel estuaries. The new approach agrees with 1-D hydrodynamic models and observations, indicating its applicability in practice. It has successfully developed a new theory and a new equation to quantify tidal pumping due to ebb-flood channel residual circulation and the related salt dispersion.

Author : Anh Duc Nguyen
Publisher : Unknown
Page : 156 pages
File Size : 41,8 Mb
Release : 2008
Category : Estuarine oceanography
ISBN : OCLC:646836575

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Salt Intrusion, Tides and Mixing in Multi-channel Estuaries by Anh Duc Nguyen Pdf

Author : H.H.G. Savenije
Publisher : Elsevier
Page : 208 pages
File Size : 54,7 Mb
Release : 2006-01-26
Category : Science
ISBN : 9780080461618

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Salinity and Tides in Alluvial Estuaries by H.H.G. Savenije Pdf

The book describes an integrated theory that links estuary shape to tidal hydraulics, tidal mixing and salt intrusion. The shape of an alluvial estuary is characterised by exponentially varying width and the absence of bottom slope. This topography is closely related to tidal parameters, hydraulic parameters and parameters that describe 1-dimensional mixing and salt intrusion. Starting from the fundamental equations for conservation of mass and momentum, analytical equations are derived that relate the topography to tidal parameters (tidal excursion, phase lag, tidal damping, tidal amplification), wave celerity, lateral and vertical mixing and salt intrusion. The book presents a review of the state of the art, a comprehensive theoretical background and ample case illustrations from all over the world. It provides tools with which human interference in estuary dynamics can be described and predicted, resulting from, for instance: upstream fresh water abstraction, dredging, climate change or sea-level rise. In describing the interactions between tide, topography, water quality and river discharge, it provides useful information for hydraulic engineers, morphologists, ecologists and people concerned with water quality in alluvial estuaries. Although the book can be used as a text book, it is mainly a monograph aimed at graduate students and researchers. * Provides new integrated theory for tidal hydraulics, tidal mixing and salt intrusion in alluvial estuaries * Presents a consistent set of analytical equations to compute tidal movement, tidal mixing and salt intrusion, derived from the fundamental laws of conservation of mass and momentum * Serves as a practical guide with many illustrations of applications in real estuaries

Author : Arthur T. Ippen,Donald R. F. Harleman,United States. Army. Corps of Engineers. Committee on Tidal Hydraulics
Publisher : Unknown
Page : 130 pages
File Size : 47,6 Mb
Release : 1961
Category : Estuaries
ISBN : UFL:31262077187804

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One-dimensional Analysis of Salinity Intrusion in Estuaries by Arthur T. Ippen,Donald R. F. Harleman,United States. Army. Corps of Engineers. Committee on Tidal Hydraulics Pdf

An experimental and analytical study of the basic factors which determine the instantaneous longitudinal distribution of salinity in a partially mixed estuary of constant section is presented. The mass-transfer equation is solved in two parts: (a) the quasi-steady-state convective-diffusion problem for an observer moving with the tidal velocity, and (b) the cyclic translation of saline water due to the tidal velocity. In the steady-state portion the apparent longitudinal diffusion coefficient is a function of the turbulence induced by the tide and of the internal circulations induced by the density difference. An expression is developed for the intrusion length as a function of the estuary length, mean depth, tidal amplitude and period, fresh-water discharge, ocean salinity, and estuary roughness. A stratification number is defined which expresses the degree of stratification or mixing in an estuary. (Author).

Author : Donald R. F. Harleman,John J. Fisher,M. Llewellyn Thatcher,Moris Llewellyn Thatcher
Publisher : Unknown
Page : 54 pages
File Size : 49,7 Mb
Release : 1974
Category : River Mouth and estuaries
ISBN : UCR:31210025034941

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Unsteady Salinity Intrusion in Estuaries by Donald R. F. Harleman,John J. Fisher,M. Llewellyn Thatcher,Moris Llewellyn Thatcher Pdf

Author : Vo Quoc Thanh
Publisher : CRC Press
Page : 186 pages
File Size : 45,5 Mb
Release : 2021-09-23
Category : Science
ISBN : 9781000416305

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Modeling of Hydrodynamics and Sediment Transport in the Mekong Delta by Vo Quoc Thanh Pdf

This research aims to investigate the prevailing sediment dynamics and the sediment budget in the Mekong Delta by using a process-based model. Understanding sediment dynamics for the Mekong Delta requires high resolution analysis and detailed data, which is a challenge for managers and scientists. This study introduces such an approach and focuses on modeling the entire system with a process-based approach with Delft3D-4 and Delft3D Flexible Mesh (DFM). The first model is used to explore sediment dynamics at the coastal zone. The latter model allows straightforward coupling of 1D and 2D grids, making it suitable for analyzing the complex river and canal network of the Mekong Delta. The validated model suggests that the Mekong Delta receives ~99 Mt/year sediment from the Mekong River. This is much lower than the common estimate of 160 Mt/year. Only about 23% of the modelled total sediment load at Kratie is exported to the sea. The remaining portion is trapped in the rivers and floodplains of the Mekong Delta. The results advance understanding of sediment dynamics and sediment budget in the Mekong Delta. As such the model is an efficient tool to support delta management and planning.

Author : Hong Quan Nguyen,Heiko Apel,Quang Bao Le,Minh Tu Nguyen,Venkataramana Sridhar
Publisher : Elsevier
Page : 674 pages
File Size : 54,9 Mb
Release : 2024-04-22
Category : Science
ISBN : 9780323914505

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The Mekong River Basin by Hong Quan Nguyen,Heiko Apel,Quang Bao Le,Minh Tu Nguyen,Venkataramana Sridhar Pdf

The Mekong River Basin: Ecohydrological Complexity from Catchment to Coast, Volume Three presents real facts, data and predictions for quantifying human-induced changes throughout the Mekong watershed, including its estuaries and coasts, and proposes solutions to decrease or mitigate the negative effect and enable sustainable development. This is the first work to link socio–ecological interaction study over the whole Mekong River basin through the lens of ecohydrology. Each chapter is written by a leading expert, with coverage on climate change, groundwater, land use, flooding drought, biodiversity and anthropological issues. Human activities are enormous in the whole watershed and are still increasing throughout the catchment, with severe negative impacts on natural resources are emerging. Among these activities, hydropower dams, especially a series of 11 dams in China, are the most critical as they generate massive changes throughout the system, including in the delta and to the livelihoods of millions of people and they threaten sustainability. Presents an extensive collection of eco-hydrological changes in the river basin driven by both nature and anthropological factors Provides state of the art modeling, data analysis methodologies for complex socio-ecological complexity applied in the Mekong river basin Includes specific cases of ecohydrology in the river basin, especially from the Mekong delta

Author : Sobri Harun,Ilya Khairanis Othman,Mohamad Hidayat Jamal
Publisher : Springer Nature
Page : 471 pages
File Size : 44,5 Mb
Release : 2022-10-12
Category : Science
ISBN : 9789811959479

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Proceedings of the 5th International Conference on Water Resources (ICWR) – Volume 1 by Sobri Harun,Ilya Khairanis Othman,Mohamad Hidayat Jamal Pdf

This book comprises selected proceedings of the 5th International Conference on Water Resources 2021 (ICWR2021) focusing on innovations and preparations to face the water-related challenges. Focus is given in the area of quantitative and qualitative water resource analyses comprising of forecasting, modelling and water governance. The contents will be useful to researchers, educators, practitioners and policy-makers alike.

Author : Pushpa Kumara Dissanayake
Publisher : CRC Press
Page : 197 pages
File Size : 51,9 Mb
Release : 2011-12-16
Category : Technology & Engineering
ISBN : 9781466552807

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Modelling Morphological Response of Large Tidal Inlet Systems to Sea Level Rise by Pushpa Kumara Dissanayake Pdf

The research presented in this work qualitatively investigates the morphodynamic response of a large tidal inlet/basin system to future relative sea level rise (RSLR) using the state-of-the-art Delft3D numerical model. Understanding the potential impacts of RSLR on these systems is a prerequisite for their sustainable management due to their rich b

Author : Donald R. F. Harleman,Arthur T. Ippen
Publisher : Unknown
Page : 72 pages
File Size : 51,6 Mb
Release : 1967
Category : Estuaries
ISBN : UCR:31210024969725

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Two-dimensional Aspects of Salinity Intrusion in Estuaries by Donald R. F. Harleman,Arthur T. Ippen Pdf

Author : Edward A. Schultz,Henry B. Simmons,United States. Army. Corps of Engineers. Committee on Tidal Hydraulics
Publisher : Unknown
Page : 44 pages
File Size : 47,5 Mb
Release : 1957
Category : Density currents
ISBN : SRLF:D0002738490

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Fresh Water-salt Water Density Currents by Edward A. Schultz,Henry B. Simmons,United States. Army. Corps of Engineers. Committee on Tidal Hydraulics Pdf

Author : Michael J. Kennish,Hans W. Paerl,Joseph R. Crosswell
Publisher : CRC Press
Page : 684 pages
File Size : 43,5 Mb
Release : 2023-09-15
Category : Science
ISBN : 9781000917826

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Climate Change and Estuaries by Michael J. Kennish,Hans W. Paerl,Joseph R. Crosswell Pdf

Climate change is having an increasing impact on coastal, estuarine, and marine environments worldwide. This book provides state-of-the-art coverage of climate change effects on estuarine ecosystems from local, regional, and global perspectives. With editors among the most noted international scholars in coastal ecology and estuarine science and contributors who are world-class in their fields, the chapters in this volume consist of comprehensive studies in coastal, estuarine and marine sciences, climate change, and coastal management and provide an extensive international collection of data in tabular, illustrated, and narrative formats useful for coastal scientists, planners, and managers. Comprised of three sections: (1) physical-chemical aspects; (2) biological aspects; and (3) management aspects, the book not only examines climatic and non-climatic drivers of change affecting coastal, estuarine, and marine environments but also their interactions and effects on populations of organisms, communities, habitats, and ecosystem structure and function. Pulling together today’s most salient issues and key literature advances for those concerned with coastal management, it allows the reader to see across direct and indirect interactions among disciplinary and ecosystem boundaries. Climate Change and Estuaries meets the research needs of climate scientists, estuarine and marine biologists, marine chemists, marine geologists, hydrologists, and coastal engineers, while students, professors, administrators, and other professionals will also find it an exhaustive reference.

Author : D. K. Yobbi,Lari A. Knochenmus
Publisher : Unknown
Page : 48 pages
File Size : 40,7 Mb
Release : 1989
Category : Estuarine pollution
ISBN : UCR:31210024975797

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Effects of River Discharge and High-tide Stage on Salinity Intrusion in the Weeki Wachee, Crystal, and Withlacoochee River Estuaries, Southwest Florida by D. K. Yobbi,Lari A. Knochenmus Pdf

Author : Sha Lou,Gangfeng Ma,Yi Pan
Publisher : Frontiers Media SA
Page : 261 pages
File Size : 43,7 Mb
Release : 2023-05-09
Category : Science
ISBN : 9782832523025

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Hydrodynamics and Water Environment Characteristics in Coastal Areas under the Influences of Climate Change and Human Activities by Sha Lou,Gangfeng Ma,Yi Pan Pdf

Author : Hugo B. Fischer,John E. List,C. Robert Koh,Jorg Imberger,Norman H. Brooks
Publisher : Elsevier
Page : 302 pages
File Size : 53,5 Mb
Release : 2013-10-22
Category : Science
ISBN : 9780080511771

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Mixing in Inland and Coastal Waters by Hugo B. Fischer,John E. List,C. Robert Koh,Jorg Imberger,Norman H. Brooks Pdf

This book is an outgrowth of research contributions and teaching experiences by all the authors in applying modern fluid mechanics to problems of pollutant transport and mixing in the water environment. It should be suitable for use in first year graduate level courses for engineering and science students, although more material is contained than can reasonably be taught in a one-year course, and most instructors will probably wish to cover only selected potions. The book should also be useful as a reference for practicing hydraulic and environmental engineers, as well as anyone involved in engineering studies for disposal of wastes into the environment. The practicing consulting or design engineer will find a thorough explanation of the fundamental processes, as well as many references to the current technical literature, the student should gain a deep enough understanding of basics to be able to read with understanding the future technical literature evolving in this evolving field.