Journal
HYDROLOGICAL PROCESSES
Volume 17, Issue 13, Pages 2629-2652Publisher
JOHN WILEY & SONS LTD
DOI: 10.1002/hyp.1257
Keywords
infiltration dynamics; conceptual models; empirical models; Nash-Sutcliffe efficiency criterion; physically based models; soil hydrology
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Fourteen popular, representative infiltration models, some physically based, some semi-empirical and some empirical, were selected for a comparative evaluation. Using the Nash and Sutcliffe efficiency criterion, the models were evaluated and compared for 243 sets of infiltration data collected from field and laboratory tests conducted in India and the USA on soils ranging from coarse sand to fine clay. Based on a relative grading scale, the semi-empirical Singh-Yu general model, Holtan model and Horton model were graded respectively as 6.52, 5.57 and 5.48 out of 10. The empirical Huggins and Monke model, modified Kostiakov and Kostiakov model were graded as 5.57, 5.30 and 5.22, respectively. The physically based non-linear and linear models of Smith-Parlange were graded as 5.48 and 5.22, respectively. Other models were ranked lower than these models. All the models generally performed poorly in field tests on Georgia's sandy soils, except the Robertsdale loamy sand. Copyright (C) 2003 John Wiley Sons, Ltd.
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