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Hydrologic simulation of watersheds with artificial drainage
Author(s) -
Campbell Kenneth L.,
Johnson Howard P.
Publication year - 1975
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/wr011i001p00120
Subject(s) - environmental science , hydrology (agriculture) , evapotranspiration , watershed , surface runoff , infiltration (hvac) , drainage , water table , groundwater recharge , tile drainage , hydraulic conductivity , water storage , water balance , interception , soil water , groundwater , soil science , geology , aquifer , geography , geomorphology , machine learning , meteorology , computer science , inlet , ecology , geotechnical engineering , biology
A deterministic hydrologic watershed model that simulates the watershed discharge and soil moisture status continuously throughout the crop season was developed for drainage watersheds with depressional storage. The model simulates the processes of interception, surface storage, infiltration, surface runoff, soil profile storage, percolation to the water table, subsurface tile drainage, soil moisture redistribution, evapotranspiration, and routing through depressions, tile mains, and the drainage ditch. The resulting outputs are daily evapotranspiration, soil moisture status in the crop root zone, and watershed discharge. The model simulated the watershed discharge and soil moisture status of the 24‐mi 2 East Fork Hardin Creek watershed near Jefferson, Iowa, for the 1964 crop season as well as could be expected with the input data that were available. Discrepancies between the measured discharge and the predicted discharge were in part due to spatial variations in precipitation over the watershed, which were not accounted for in the model input data.