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Modeling subsurface stormflow on steeply sloping forested watersheds
Author(s) -
Sloan Patrick G.,
Moore Ian D.
Publication year - 1984
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/wr020i012p01815
Subject(s) - kinematic wave , richards equation , watershed , hydrology (agriculture) , water table , geology , hydrological modelling , kinematics , empirical modelling , mathematical model , geotechnical engineering , computer science , mathematics , surface runoff , groundwater , simulation , water content , statistics , classical mechanics , climatology , machine learning , biology , ecology , physics
Five mathematical models for predicting subsurface flow were compared to discharge measurements made by Hewlett and Hibbert (1963) on a uniform sloping soil trough at the Coweeta Hydrologic Laboratory. The models included one‐ and two‐dimensional finite element models based on the Richards equation, a kinematic wave model, and two simple storage‐discharge models based on the kinematic wave and Boussinesq assumptions. The simple models simulated the subsurface response and water table positions as well as the more complex models based on the Richards equation and were much more economical to use from the point of view of computational costs. Such models have features that would allow them to be incorporated into more complex watershed models, thus placing hydrologic prediction on a more physically correct and less empirical footing.