Journal
WATER RESOURCES MANAGEMENT
Volume 16, Issue 3, Pages 221-238Publisher
KLUWER ACADEMIC PUBL
DOI: 10.1023/A:1020258808869
Keywords
arid region; calibration; hydrological model; optimization; runoff hydrograph; sensitivity analysis
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This study is aimed to use the available limited meteorological and hydrological data for two catchments located in the western Iraqi desert, to develop and apply a simple single event watershed model to simulate and predict the surface runoff hydrograph. The single event watershed model is based on the water balance equation. The inputs to the model are rainfall, evaporation, and soil properties data. The Resonbrock optimization technique is employed to determine the optimum parameters of the model. Also a simple and a modified version of this model is suggested and tested for the study area. The available rainfall and runoff data in these catchments have been used in calibrating and testing the model. In model testing, the optimized parameters for a particular storm are used to test the model performance on other available storms and so on. Sensitivity analysis has been used to determine the most sensitive parameters.
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