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Runoff Estimation with Consideration of Land-Use Distribution  

Son, Kwang-Ik (영남대학교 건설환경공학부)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.8, no.1, 2008 , pp. 97-102 More about this Journal
Abstract
The Natural Resource Conservation Service Curve Number(NRCS-CN) method is one of the widely used methods for computation of runoff from a basin. However, NRCS-CN method has a weak point in that the spatial land use distribution characteristics are ignored by using area-weighted CN value. This study developed a runoff estimation algorithm which can reflect the spatial land-use distribution. The algorithm consists of Moglen's theory and a developed flow accumulation estimation program in FORTRAN. Comparisons between the results from area-weighted CN method and this study showed reasonably good agreement with measured data of experimental watersheds. The developed program predicted lower runoff than the conventional NRCS-CN method. As a conclusion, this study proposes a new design direction which can simulate real runoff phenomena. And the developed program could be applied into runoff minimization design for a basin development.
Keywords
NRCS-CN; land use distribution; flow accumulation; runoff characteristic;
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1 김현식, 오윤근, 윤연중, 김한준 (2004) GIS 기법을 활용한 유출곡선지수(CN) 산정. 한국수자원학회 학술발표회 논문집, 한국수자원학회, pp. 221-221
2 배덕효, 이병주, 정일원 (2003) 위성영성 피복분류에 대한 CN값 산정(I). 한국수자원학회논문집, 한국수자원학회, 제36권, 제6호, pp. 985-997
3 채종훈, 정인주, 김상용 (2004) GIS를 이용한 CN 산정시스템 구축. 한국수자원학회 학술발표회 논문집, 한국수자원학회, pp. 223-223
4 USDA (1986) Technical Report - 55 'Urban Hydrology for Small Watersheds'. Natural Resources Conservation Service, United States Department of Agriculture
5 Grove, M., J. Harbor, B.A. Engel, and S. Muthukrishnan (2001) Impacts of Urbanization on Surface Hydrology, Little Eagle Creek, Indiana, and Analysis of LTHIA Model Sinsitivity to Data Resolution. Physical Geography, Vol. 22, pp. 135-153
6 United States Department of Agriculture (1986) Urban Hydrology for small watersheds. Natural Resources Conservation Service Technical Release 55
7 Tang, Z., B.A. Engel, B.C. Pijanowski and K.J. Lim (2005) Forecasting Land Use Change and its Environmental Impact at a Watershed Scale. Journal of Environmental Management, Vol. 76, pp. 35-45   DOI   ScienceOn
8 Moglen, G. E. (2000) Effect of Orientation of Spatially Distributed Curve Number in Runoff Calculations. Journal of the American Water Resources Association, Vol. 36, No. 6, pp. 1391-1400   DOI   ScienceOn
9 윤라영, 손광익, 김동희, 권혁현, 신승철 (2006) GIS L-THIA를 이용한 도시화에 따른 유출과 비점원오염 영향 평가. 한국수자원학회 학술발표회 논문집, 한국수자원학회, pp. 1802-1806
10 김경탁 (2003) 정밀토양도를 이용한 CN 산정에 대한 제안. 한국수자원학회논문집, 한국수자원학회, 제36권, 제4호, pp. 45-53