A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Use of Stormwater Capture Curve for Sizing Storage-Based LID Facilities in Korea
Most of the related literatures of designing storage-based LID facilities assume that precipitation event-depths follow the 1-parameter exponential probability density function in order to reduce the mathematical complexity of the derivation process. However, how to express the precipitation is the most important factor for analyzing stormwater, and thus, a better mathematical expression that represents the probability distribution of precipitation depths is suggested in this study. Also, the rainfall-runoff calculation procedure required for when deriving a stormwater capture curve is altered by the NRCS (U.S. National Resources Conservation Service) runoff curve number method to consider the nonlinearity of the rainfall-runoff relation, and at the same time, to obtain a more verifiable and representative curve for design when applying it to urban drainage areas with very complicated land-use characteristics such as occurs in Korea. The result of developing the stormwater capture curve from the rainfall data in Seoul, Korea confirms that the methodology suggested in this study provides a better solution than the pre-existing one.
Use of Stormwater Capture Curve for Sizing Storage-Based LID Facilities in Korea
Most of the related literatures of designing storage-based LID facilities assume that precipitation event-depths follow the 1-parameter exponential probability density function in order to reduce the mathematical complexity of the derivation process. However, how to express the precipitation is the most important factor for analyzing stormwater, and thus, a better mathematical expression that represents the probability distribution of precipitation depths is suggested in this study. Also, the rainfall-runoff calculation procedure required for when deriving a stormwater capture curve is altered by the NRCS (U.S. National Resources Conservation Service) runoff curve number method to consider the nonlinearity of the rainfall-runoff relation, and at the same time, to obtain a more verifiable and representative curve for design when applying it to urban drainage areas with very complicated land-use characteristics such as occurs in Korea. The result of developing the stormwater capture curve from the rainfall data in Seoul, Korea confirms that the methodology suggested in this study provides a better solution than the pre-existing one.
Use of Stormwater Capture Curve for Sizing Storage-Based LID Facilities in Korea
Kim, Sangdan (author) / Choi, Chihyeon (author) / Seo, Seongcheol (author) / Kang, Doo Kee (author) / Shin, Hyunsuk (author)
Low Impact Development International Conference (LID) 2010 ; 2010 ; San Francisco, California, United States
Low Impact Development 2010 ; 464-474
2010-04-06
Conference paper
Electronic Resource
English
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