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Uncertainty analysis of flash-flood system using remote sensing and a geographic information system based on GcIUH in the Yeongdeok Basin, Korea

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The current paper focuses on minimizing flood damage in the Yeongdeok basin of South Korea by establishing a flood prediction model based on a geographic information system (GIS), remote sensing and geomorphoclimatic instantaneous unit hydrograph (GcIUH) techniques. The GIS database for flash flood prediction was created using data from digital elevation models (DEMs), soil maps and Landsat satellite imagery. Flood prediction was based on the peak discharge calculated at the sub-basin scale using hydrogeomorphologic techniques and the threshold runoff value. Using the developed flash flood prediction model, rainfall conditions with the potential to cause flooding were determined based on the cumulative rainfall for 20 min, considering rainfall duration, peak discharge and flooding in the Yeongdeok basin.

Document Type: Research Article


Affiliations: 1: Department of Civil Engineering, KyungNam University, Wol Yong-Dong, Masan, South Korea 2: Department of Civil Engineering, Pusan National University, Jang Jeon-Dong, Pusan, South Korea 3: Division of Environmental Engineering, Pukyong National University, Dae Yon-Dong, Pusan, South Korea 4: Department of Satellite Information Sciences, Pukyung National University, Dae Yon-Dong, Pusan, South Korea

Publication date: January 1, 2007

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