대한원격탐사학회:학술대회논문집 (Proceedings of the KSRS Conference)

대한원격탐사학회 (Korean Society of Remote Sensing)
권호 표지

Uncertainty Analysis of Flash-flood Prediction using Remote Sensing and a Geographic Information System based on GcIUH in the Yeongdeok Basin, Korea

  • Choi, Hyun (Department of Civil Engineering, KyungNam University) ;
  • Chung, Yong-Hyun (Department of Satellite Information Sciences, Pukyong National University) ;
  • Yoon, Hong-Joo (Department of Satellite Information Sciences, Pukyong National University)
  • 발행 : 2006.11.02
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초록

This 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 minutes, considering rainfall duration, peak discharge, and flooding in the Yeongdeok basin.

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