Digital model of ground-water flow in the Piceance Basin, Rio Blanco and Garfield Counties, Colorado
Water-Resources Investigations Report
78-46
By: John B. Weeks
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Abstract
The digital model used to simulate ground-water flow in the aquifer system in the basin drained by Piceance and Yellow Creeks in northwestern Colorado is described in detail. The model is quasi three-dimensional in that it simulates ground-water flow in a multiaquifer system by assuming horizontal flow in the aquifers and vertical flow through the confining layers separating the aquifers. The model uses the iterative alternating-direction implicit procedure to solve the finite-difference flow equations. The digital model is documented by a program listing and flow charts. Data used in the model and sample output are presented to document the simulation of steady-state flow in the aquifer system. The variables used in the computer program and program options are discussed in detail. (Woodard-USGS)
Suggested Citation
Weeks, J., 1978, Digital model of ground-water flow in the Piceance Basin, Rio Blanco and Garfield Counties, Colorado: U.S. Geological Survey Water-Resources Investigations Report 78-46, iv, 108 p. :ill., maps ;26 cm., https://doi.org/10.3133/wri7846.
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Digital model of ground-water flow in the Piceance Basin, Rio Blanco and Garfield Counties, Colorado |
| Series title | Water-Resources Investigations Report |
| Series number | 78-46 |
| DOI | 10.3133/wri7846 |
| Year Published | 1978 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey, Water Resources Division, |
| Description | iv, 108 p. :ill., maps ;26 cm. |