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http://dx.doi.org/10.5389/KSAE.2009.51.5.107

Estimation of Design Flood Runoff in Ungaged Forest Watershed to Reduce Flood Damage within the National Park  

Kim, Sang-Min (경상대학교 지역환경기반공학과 (경상대학교 농업생명과학연구원))
Im, Sang-Jun (서울대학교 산림과학부 (서울대학교 농업생명과학연구원))
Lee, Sang-Ho (서울대학교 산림과학부 (서울대학교 농업생명과학연구원))
Kim, Hyung-Ho (경상대학교 환경산림과학부 (경상대학교 농업생명과학연구원))
Ma, Ho-Seop (경상대학교 환경산림과학부 (경상대학교 농업생명과학연구원))
Jeong, Won-Ok (국립공원관리공단 국립공원연구원)
Publication Information
Journal of The Korean Society of Agricultural Engineers / v.51, no.5, 2009 , pp. 107-113 More about this Journal
Abstract
The purpose of this study is to estimate the design flood runoff for ungaged forest watershed to reduce the flood damage in national park. Daewonsa watershed in Jirisan National Park was selected as study watershed, of which characteristic factors were obtained from GIS data. Flood runoff was simulated using SCS unit hydrograph module in HEC-HMS model. SCS Curve Number (CN) was calculated from forest type area weighted average method. Huff's time distribution of second-quartile storm of the Sancheong weather station, which is nearest from study watershed, was used for design flood runoff estimation. Critical storm duration for the study watershed was 3 hrs. Based on the critical duration, the peak runoff for each sub-watershed were simulated. It is recommended to monitor the long-term flow data for major stream stations in National Park for a better reliable peak runoff simulation results.
Keywords
Forest watershed; SCS; HEC-HMS; Huff; peak runoff; critical storm duration;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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