A Systematic Evaluation of Hillslope Subsurface Flow: The Effects of Slope Angle and Soil Parameter Variation

by Philip H. De Groot, USDA, Agricultural Research Service, Northwest Watershed Research Cent, Boise, ID, USA,
Roland W. Jeppson, USDA, Agricultural Research Service, Northwest Watershed Research Cent, Boise, ID, USA,
Christopher J. Duffy, USDA, Agricultural Research Service, Northwest Watershed Research Cent, Boise, ID, USA,



Document Type: Proceeding Paper

Part of: Watershed Management in the Eighties

Abstract: A two-dimensional finite element variably saturated flow model is used in conjunction with an automatic mesh generating scheme to simulate hillslope subsurface flow. Slopes from 2% to 50% with 4 different soil types, ranging in texture from a sand to a loam, are simulated using identical initial conditions and the same infiltration event. The results include discharge hydrographs of the baseflow for the various slope angles and soil types.

Subject Headings: Subsurface flow | Slopes | Soil properties | Two-dimensional models | Two-dimensional flow | Flow simulation | Fluid flow | Soil classification

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