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Page 4183, results 104551 - 104575

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Water-resources activities of the U.S. Geological Survey in Illinois, 1990
G. O. Balding (compiler)
1992, Open-File Report 92-451
This report gives an overview of U.S. Geological Survey, Illinois District, Water Resources Division activities related to the water resources of the State of Illinois. The report includes sections describing District organization, programs, water conditions, data collection activities, and project summaries. Also included is a complete listing of District and...
A modular finite-element model (MODFE) for areal and axisymmetric ground-water-flow problems, Part 2: Derivation of finite-element equations and comparisons with analytical solutions
Richard L. Cooley
1992, Techniques of Water-Resources Investigations 06-A4
MODFE, a modular finite-element model for simulating steady- or unsteady-state, area1 or axisymmetric flow of ground water in a heterogeneous anisotropic aquifer is documented in a three-part series of reports. In this report, part 2, the finite-element equations are derived by minimizing a functional of the difference between the true...
Analytical solutions for one-, two-, and three-dimensional solute transport in ground-water systems with uniform flow
Eliezer J. Wexler
1992, Techniques of Water-Resources Investigations 03-B7
Analytical solutions to the advective-dispersive solute-transport equation are useful in predicting the fate of solutes in ground water. Analytical solutions compiled from available literature or derived by the author are presented for a variety of boundary condition types and solute-source configurations in one-, two-, and three-dimensional systems having uniform ground-water...