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Application of SCS curve number method for irrigated paddy field
Abstract The runoff curve number (CN) for irrigated, level-terraced paddy fields was estimated from measured rainfall and runoff data. The CN values were determined from the maximum retention storages at probabilities of 10, 50, and 90%, from a fitted lognormal distribution. The CN values at the antecedent moisture condition (AMC) I, II, and III were found to be 67, 82, and 91, respectively. Flooding depths and the heights of check gates were also monitored to work out the hydrologic characteristics for paddy fields. The field data showed flooding depth seem to be a major factor affecting retention storage. Thus, flooding depth in paddy fields corresponding 10, 50 and 90% probabilities were consider, to be equivalent to AMC I, II, and AMC III, respectively.
Application of SCS curve number method for irrigated paddy field
Abstract The runoff curve number (CN) for irrigated, level-terraced paddy fields was estimated from measured rainfall and runoff data. The CN values were determined from the maximum retention storages at probabilities of 10, 50, and 90%, from a fitted lognormal distribution. The CN values at the antecedent moisture condition (AMC) I, II, and III were found to be 67, 82, and 91, respectively. Flooding depths and the heights of check gates were also monitored to work out the hydrologic characteristics for paddy fields. The field data showed flooding depth seem to be a major factor affecting retention storage. Thus, flooding depth in paddy fields corresponding 10, 50 and 90% probabilities were consider, to be equivalent to AMC I, II, and AMC III, respectively.
Application of SCS curve number method for irrigated paddy field
Im, Sangjun (author) / Park, Seungwoo (author) / Jang, Taeil (author)
KSCE Journal of Civil Engineering ; 11 ; 51-56
2007-01-01
6 pages
Article (Journal)
Electronic Resource
English
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