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Unsteady Salinity Intrusion In Estuaries Parts I And Ii
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Book Synopsis Unsteady Salinity Intrusion in Estuaries [Parts I and II] by : D. R. F. Harleman
Download or read book Unsteady Salinity Intrusion in Estuaries [Parts I and II] written by D. R. F. Harleman and published by . This book was released on 1974 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Unsteady Salinity Intrusion in Estuaries. Part I. One-Dimensional, Transient Salinity Intrusion with Varying Freshwater Inflow. Part II. Two-Dimensional Analysis of Time-Averaged Salinity and Velocity Profiles by : Donald R. F. Harleman
Download or read book Unsteady Salinity Intrusion in Estuaries. Part I. One-Dimensional, Transient Salinity Intrusion with Varying Freshwater Inflow. Part II. Two-Dimensional Analysis of Time-Averaged Salinity and Velocity Profiles written by Donald R. F. Harleman and published by . This book was released on 1974 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study reported herein is concerned with transient salinity intrusion and is presented in two parts. In Part I a one-dimensional numerical model is developed for the prediction of transient salinity intrusion under conditions of varying freshwater inflow. The model couples the one-dimensional continuity and momentum equation for unsteady tidal motion in a variable area estuary with the mass transport equation for salinity. The numerical model incorporates variable estuary geometry and roughness, time-dependent boundary conditions of tidal range at the ocean end, and variable freshwater inflow at the head of the estuary and from tributaries along the estuary. In Part II a two-dimensional analytical model is developed for the prediction of vertical distributions of velocity and salinity, averaged over a tidal period. The results of the numerical model described in Part I are used to determine the longitudinal salinity gradient which, for partially and well-mixed estuaries, is assumed to be independent of depth. (Modified author abstract).
Book Synopsis Unsteady Salinity Intrusion in Estuaries by : Donald R. F. Harleman
Download or read book Unsteady Salinity Intrusion in Estuaries written by Donald R. F. Harleman and published by . This book was released on 1974 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Unsteady Salinity Intrusion in Estuaries by : Donald R. F. Harleman
Download or read book Unsteady Salinity Intrusion in Estuaries written by Donald R. F. Harleman and published by . This book was released on 1974 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis One-dimensional Analysis of Salinity Intrusion in Estuaries by : Arthur T. Ippen
Download or read book One-dimensional Analysis of Salinity Intrusion in Estuaries written by Arthur T. Ippen and published by . This book was released on 1961 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).
Book Synopsis A Mathematical Model for the Prediction of Unsteady Salinity Intrusion in Estuaries by : M. Llewellyn Thatcher
Download or read book A Mathematical Model for the Prediction of Unsteady Salinity Intrusion in Estuaries written by M. Llewellyn Thatcher and published by . This book was released on 1972 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: The salinity structure of a tidal estuary fed by upstream fresh water sources is an important factor of water quality. In addition, this structure is intimately related to the circulation of the estuary because of density currents induced by the salt-fresh water relation. Previous investigations in two and three dimensions have been limited to extremely simplified geometrical and steady-state assumptions. One dimensional studies have considered the variable area case, but have been limited to descriptive rather than predictive methods because of the difficulty of handling the downstream boundary condition for the one-dimensional salt balance equation and because of the necessity to specify a longitudinal dispersion coefficient based on field data for the estuary being studied. This study presents a predictive numerical model of unsteady salinity intrusion in estuaries by formulating the problem in finite-difference terms using the one-dimensional, tidal time, variable area equations for the conservation of water mass, conservation of momentum and conservation of salt. Tidal time means a time scale of calculation larger than that defining turbulence, but much smaller than a tidal period in order to correctly represent the tidal advection within a tidal period. The tidal dynamic equations are coupled to the conservation of salt equation through a salinity-density relationship, and the ocean boundary condition for salt is formulated in a manner which depends on the direction of flow at the entrance to the estuary. The longitudinal dispersion coefficient has been shown to be proportional to the magnitude of the local, time-varying longitudinal salinity gradient, and this constant of proportionality has been shown to depend on a dimensionless parameter which expresses the degree of vertical stratification of the estuary. This relationship has been established for a wide range of stratification conditions. The mathematical model has been verified using data from the Waterways Experiment Station salinity flume and field data from the Delaware, the Potomac, and the Hudson. By specifying initial conditions, fresh water hydrographs, and tidal elevations at the ocean, it is possible to predict the time-varying salinity using this model.
Book Synopsis Longitudinal Dispersion and Unsteady Salinity Intrusion in Estuaries by : Donald R. F. Harleman
Download or read book Longitudinal Dispersion and Unsteady Salinity Intrusion in Estuaries written by Donald R. F. Harleman and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Army. Corps of Engineers. Committee on Tidal Hydraulics Publisher : ISBN 13 : Total Pages :35 pages Book Rating :4.:/5 (111 download)
Book Synopsis Unsteady Salinity Intrusion in Estuaries by : United States. Army. Corps of Engineers. Committee on Tidal Hydraulics
Download or read book Unsteady Salinity Intrusion in Estuaries written by United States. Army. Corps of Engineers. Committee on Tidal Hydraulics and published by . This book was released on 1974 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Bulletin written by and published by . This book was released on 1954 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estuarine Research written by and published by . This book was released on 1978 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Prediction of Unsteady Salinity Intrusion in Estuaries by : Donald H Evans
Download or read book Prediction of Unsteady Salinity Intrusion in Estuaries written by Donald H Evans and published by . This book was released on 1972 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1989 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Salinity and Tides in Alluvial Estuaries by : H.H.G. Savenije
Download or read book Salinity and Tides in Alluvial Estuaries written by H.H.G. Savenije and published by Elsevier. This book was released on 2006-01-26 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis Catalog of the United States Geological Survey Library by : U.S. Geological Survey Library
Download or read book Catalog of the United States Geological Survey Library written by U.S. Geological Survey Library and published by . This book was released on 1976 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1979 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Salt Intrusion, Tides and Mixing in Multi-Channel Estuaries by : Anh Duc Nguyen
Download or read book Salt Intrusion, Tides and Mixing in Multi-Channel Estuaries written by Anh Duc Nguyen and published by CRC Press. This book was released on 2008-11-01 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Hudson River Basin, Level B, Water and Related Land Resources Study by : Denise A. Wiltshire
Download or read book Hudson River Basin, Level B, Water and Related Land Resources Study written by Denise A. Wiltshire and published by . This book was released on 1978 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: