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Digital model of ground-water flow in the Piceance Basin, Rio Blanco and Garfield Counties, Colorado

Water-Resources Investigations Report 78-46

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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)

Additional Publication Details

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
Edition:
-
Year Published:
1978
Language:
ENGLISH
Publisher:
U.S. Geological Survey, Water Resources Division,
Description:
iv, 108 p. :ill., maps ;26 cm.