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http://dx.doi.org/10.3741/JKWRA.2003.36.6.925

Evaluation for Constructing Isochrones using a GIS  

Cho, Hyo-Seob (일신하이텍 기술연구소)
Kim, Ke-Ho (일신하이텍)
Jung, Kwan-Sue (충남대학교 토목공학과)
Kim, Jae-Han (충남대학교 토목공학과)
Publication Information
Journal of Korea Water Resources Association / v.36, no.6, 2003 , pp. 925-936 More about this Journal
Abstract
The objective of this study is to suggest new drawing methods of isochrones using GIS. For this purpose the Unit Hydrograph (UH) of studied watershed for instantaneous rainfall suggested by Clark have been determined by routing the time-area curve through a single linear reservoir. To evaluate constructing methods of isochrones three methods has been examined; Channel Profile and Clark-kict method; Laurenson method; Average velocity method of S.C.S. Also, these methods have been recomposed by GIS in this study. To apply first method, spatial modeling, the vector based on the stream network and Route_System measuring a distance between points has been used. A raster based on the flow direction grid from burn DEM and the slope grid from original DEM has been applied for the second method. The third method has been applied by a raster based on the landuse grid and a velocity function expressed by slope. Results by these three methods have been evaluated with observed hydrograph, and the method using average velocity method of S.C.S shows more reasonable results comparatively.
Keywords
Trave ltime; Clark′s UH; Isochrones; GIS; Laurenson method; SCS method; GIS;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 건설교통부(1983-2000). 국제수문개발계획(IHP) 연구보고서
2 윤석영, 홍일표(1994). '소유역의 응답시간특성 산정방법에 따른 시간 면적도의 작성과 적용.' 제 36회 수공학연구발표회 논문집, pp.279-283   과학기술학회마을
3 윤석영(1993). 수로망 응답과 사면응답을 고려한 홍수 유출해석.박사학위논문, 충남대학교
4 조효섭(2000). 분포형 강우-유출모형의 격자 규모 결정. 박사학위논문, 충남대학교
5 한국건설기술연구원(1994). 홍수유출 예측을 위한 수리.수문학적 인자의 결정, 건기연 94-WR-113
6 윤광원, 원석연, 윤용남(1994). 'Clark 유역추적법에 의한 계획홍수량산정에 미치는 매개변수의 민감도 분석.' 한국수문학회지, Vol.27, No.4,pp.85-94   과학기술학회마을
7 Dooge, J. C. I.(1959), 'General Theory of the Unit Hydrograph,' J. Geophys. Res., Vol.64, pp.241-256   DOI
8 Chow, V.T., Maidment. D.R. and Mays, L. M.(1988) Applied Hydrology, Mcgraw-Hill Book Company, pp164-166
9 American Association of State Highway and Transportation Officials(1991), Model Drainage Manual, pp.7-D-1-7-D-6
10 Maidment, D.R.(1993), 'Developing a spatially distributed unit hydrograph by using GIS.' Application of Geographic information Systems in Hydrology and Water Resources Management, IAHS Publication No.211, pp.181-192
11 Sircar, J. K., Ragan, R.M, Engman, E.T., and Fink, R.A.(1991), 'A GIS based geomorphic approach for the digital computation of time-area curves.' Proc. ASCE Symposium on Remote Sensing Applications in Water Resources Engineering
12 U.S. Army Corps of Engineers(1990) HEC-1 Flood Hydrograph Package, User's Manual
13 Muzik, I. (1996), 'A GIS-derived distributed Unit Hydrograph,' Application of Geographic information Systems in Hydrology and Water Resources Management, IAHS Publication No.235, pp.453-460
14 U.S. Department of Agriculture Soil Conservation Service(1986.6), 'Urban Hydrology for Small Watersheds,' Tech. Release No.55, Washington DC