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SOIL MOISTURE ACCOUNTING COMPONENT OF THE USDAHL‐74 MODEL OF WATERSHED HYDROLOGY 1
Author(s) -
England C. B.
Publication year - 1975
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1975.tb00709.x
Subject(s) - watershed , hydrology (agriculture) , environmental science , streamflow , water content , moisture , soil science , geology , drainage basin , geography , geotechnical engineering , computer science , meteorology , cartography , machine learning
Soil moisture in two layers of a soil near Chickasha, Oklahoma, was simulated, using USDAHL‐74 Model of Watershed Hydrology. Weekly values computed for both layers compared well with those observed during the 15‐month period. Certain key parameters required adjustments in the model which illustrate the need for accurate input information. The experiment demonstrates that the model, which has previously given good results in continuous streamflow prediction on watersheds up to 100 square miles, can also compute soil moisture continuously at a site. This capability suggests other model uses, for example, in monitoring the disposition of applied chemicals.