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A model of transient, topographically driven, saturated subsurface flow
Author(s) -
Jackson C. Rhett,
Cundy Terrance W.
Publication year - 1992
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/91wr02923
Subject(s) - subsurface flow , geology , hydrology (agriculture) , flow (mathematics) , characterisation of pore space in soil , soil science , hydraulic conductivity , porosity , richards equation , transient (computer programming) , infiltration (hvac) , range (aeronautics) , geotechnical engineering , soil water , geomorphology , groundwater , mechanics , meteorology , materials science , computer science , physics , operating system , composite material
A two‐dimensional, finite difference model of saturated subsurface hillslope flow, capable of handling varied topography, is developed. The model uses rainfall, elevation data, saturated conductivities, and available soil porosity to predict saturated thicknesses in time and space over the hillslope. The model is tested against piezometric data collected in a steep hillslope hollow in the Cascade Range of Washington state during the winter wet season. The model closely tracks the timing and magnitude of piezometric response.

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