한국농공학회지 (Magazine of the Korean Society of Agricultural Engineers)
- 제31권2호
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- Pages.116-124
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- 1989
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- 0253-3146(pISSN)
장기유출 해석을 위한 유효우량 추정
Estiation of Effective Rainall for Daily Streamfiow
초록
Based on the theory of runoff equation proposed by SCS, the actual storage capacity(Sa) as a modified retention paramater was introduced to estimate the effective rainfall for the daily streamfiow analysis. During a storm, the actual storage capacity is limited by either soil water storage or infiltration rate as precipitation increases. Therefore, it was assumed that Sa is dependent on the baseflow before storm runoff(Qb) corresponding to soil water storage and the total amount of precipitation(P) corresponding to infiltration rate of a watershed. Effective rainfalls (Direct run-offs) estimate4 from SCS equation using Sa were compared with observed effective rainfalls at 10 watersheds in Geum river watershed boundary. 1. Regression equation for Sa was supposed Sa=Co+C
키워드