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| Author | : Wilbert I. M. Elderhorst |
| Publisher | : |
| Total Pages | : |
| Release | : 1991 |
| Genre | : |
| ISBN | : |
| Author | : Samuel F. Atkinson |
| Publisher | : CRC Press |
| Total Pages | : 409 |
| Release | : 2018-01-18 |
| Genre | : Science |
| ISBN | : 1351084984 |
This book provides a summary of the status and potential for salt water intrusion into ground water in the contiguous united states. While the focus is on resultant limitation in the agricultural usage of ground water, the book is not limited to this singular limitation in resource usage.
| Author | : Bob D. Newport |
| Publisher | : |
| Total Pages | : 44 |
| Release | : 1977 |
| Genre | : Saltwater encroachment |
| ISBN | : |
| Author | : Ahmed Abulaid Ganfoud |
| Publisher | : |
| Total Pages | : 560 |
| Release | : 1997 |
| Genre | : Saltwater encroachment |
| ISBN | : |
| Author | : Donald L. Reddell |
| Publisher | : |
| Total Pages | : 100 |
| Release | : 1983 |
| Genre | : Aquifers |
| ISBN | : |
| Author | : United States. Environmental Protection Agency. Office of Air and Water Programs |
| Publisher | : |
| Total Pages | : 108 |
| Release | : 1973 |
| Genre | : Groundwater |
| ISBN | : |
Report on processes and methods of controlling water pollution (pollution control) resulting from salt water intrusion - examines the effects of salt water intrusion on water quality and includes comments on relevant legislation. Graphs, illustrations and references.
| Author | : A. Vandenberg |
| Publisher | : Ottawa: Inland Waters Directorate, Water Resources Brach |
| Total Pages | : 40 |
| Release | : 1974 |
| Genre | : Digital computer simulation |
| ISBN | : |
| Author | : Thomas Gray Curtis |
| Publisher | : |
| Total Pages | : 168 |
| Release | : 1983 |
| Genre | : Saltwater encroachment |
| ISBN | : |
A computer model is presented that simulates the movement of an interface separating two incompressible fluids: fresh and salt groundwater. The technique is a modification of the method of modeling interface movement by the use of distributed singularities originally presented by De Josselin de Jong. The modifications consist of: 1. formulating the problem in terms of potentials rather than velocities (applicable only for piecewise constant densities), 2. using complex variable methods to implement boundary conditions. The problem is solved by treating the flow as quasi-steady. A boundary value problem is solved at selected times and the convection of the interface is determined by interpolation of the velocities, which are determined by analytic differentiation of the complex potential function. A Hele-Shaw model was constructed to verify the shape of the interface and movement with time as predicted by the computer model.
| Author | : Bijay Kumar Panigrahi |
| Publisher | : |
| Total Pages | : 230 |
| Release | : 1980 |
| Genre | : |
| ISBN | : |
| Author | : Chiau Siang Tan |
| Publisher | : |
| Total Pages | : 250 |
| Release | : 2001 |
| Genre | : Salt water |
| ISBN | : |
Coastal aquifers play important roles for sources of water. With growing concern on groundwater resources both in term of quantity and quality, proper assessments and computation tools are becoming more important. Groundwater regional scale phenomena usually cannot be studied accurately using laboratory scale physical models; therefore mathematical tools of analysis must be applied. The advance of the computer technology should be used to solve the complicated mathematical task in solving arithmetic operations. The purpose of this study was to develop a user-friendly steady state model for simulation of saltwater intrusion into coastal aquifers. The model made use of the mathematical formulation developed by Ganfoud (1997). Two equations were derived, one for water flow, and the other for solute transport that were coupled through Darcy's velocity and concentration. In the numerical model formulation, two- dimensional Galerkin finite element approach was applied for deriving the elemental matrix equation through quadrilateral elements. The system of linear equations was solved using successive substitution employing the Gaussian elimination techniques. The whole formulation was set up by using the Visual Basic programming and Surfer graphic program (developed by Golden Software) to analyze the results. The results of intrusion were shown graphically under steady state conditions. The program has been proven to be user-friendly than other programming languages. For model verification, a hypothetical unconfined model and a physical model were used to compare the model's results with previous studies. These models applied the constant and velocity-dependent dispersion coefficient. The comparison showed a good agreement in numerical term between the proposed model and the previous ones. However, the Visual Basic program is not as powerful as the FORTRAN Engineering programming and caused minor discrepancies when compared to the previous study.
