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Simulation procedure for modeling transient water table and artesian stress and response
J.E. Reed, M. S. Bedinger, J. E. Terry
1976, Open-File Report 76-792
The series of computer programs described in this report were designed specifically to model the ground-water regime in sufficient detail to determine the effects of the imposition of various types of stress upon the system, and to display the results in a convenient manner during calibration and when presenting projected...
A cross-section plotting program (CSPP) for gridded (map) data
Richard B. Wells, Charles R. Faust, James W. Mercer
1976, Open-File Report 76-689
A FORTRAN program that prepares the Calcomp plotter tape for drawing cross-sections from gridded map data is described and documented. The program accepts gridded data of the form Z(x,y), where Z is the value at the grid intersection, (x,y). Up to 10 sets of Z(x,y) data for a given grid...
Predicted effects of a proposed water-resources management plan in the lower San Luis Rey River Valley, California, using digital ground-water flow models
James A. Skrivan
1976, Open-File Report 76-754
A proposed plan for water-resource management in the lower San Luis Rey River valley, Calif. has been evaluated using digital models of ground-water flow. Two projections of water-level changes and salt balance in 1977 were made. The first projection used 1972 climatic and pumping conditions. The second projection used these...
Numerical modeling of subsurface radioactive solute transport from waste seepage ponds at the Idaho National Engineering Laboratory
John B. Robertson
1976, Open-File Report 76-717
Aqueous chemical and low-level radioactive effluents have been disposed to seepage ponds since 1952 at the Idaho National Engineering Laboratory. The solutions percolate toward the Snake River Plain aquifer (135 m below) through interlayered basalts and unconsolidated sediments and an extensive zone of ground water perched on a sedimentary layer...
Water resources of Dinosaur National Monument, Colorado and Utah
C. T. Sumsion
1976, Open-File Report 76-580
Dinosaur National Monument, partly in the Rocky Mountain System and partly in the Colorado Plateaus physiographic province, covers an area of 322 square miles (834 square kilometres) in northwestern Colorado and northeastern Utah. The climate is generally cool and pleasant in May, early June, September, and October; winters are cold....
Source beds of petroleum in the Denver Basin
Paul J. Swetland, Jerry L. Clayton
1976, Open-File Report 76-572
Crude oil and shale samples from the Denver basin of Colorado, Wyoming, and Nebraska were analyzed by organic geochemical techniques to determine the stratigraphic occurrence and regional distribution of petroleum source beds. The study demonstrates that the oils produced from Cretaceous Sussex, Shannon, ?D? and 'J' sandstone reservoirs are genetically...
Floods in Ohio: magnitude and frequency
Earl E. Webber, William P. Bartlett
1976, Open-File Report 76-768
Techniques are presented for estimating the magnitude ant frequency of floods on Ohio streams. .Regression analysis is used to develop equations which relate physical and climatic factors of river basins to peak discharge at stream gaging stations. The equations can be used to estimate flood magnitudes with recurrence intervals from...
Preliminary investigations on computational methods for solving the two-point seismic ray-tracing problem in a heterogeneous and isotropic medium
J.P. Yang, William Hung Kan Lee
1976, Open-File Report 76-707
Two-point seismic ray tracing is an important problem in seismology. In this report, we study this problem by first deriving the differential equations governing seismic wave propagation between two end points in a 3-dimensional heterogeneous and isotropic medium. We then formulate three numerical schemes to solve the two-point ray-tracing problem....