한국지리정보학회지 (Journal of the Korean Association of Geographic Information Studies)
- 제9권1호
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- Pages.78-88
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- 2006
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- 1226-9719(pISSN)
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- 2287-6952(eISSN)
GIS를 활용한 돌발홍수 기준우량 결정
Determining the Flash Flood Warning Trigger Rainfall using GIS
- Hwang, Chang-Sup (Dept. of Civil Engineering, Chungbuk National University) ;
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Jun, Kye-Won
(Graduate School of Disasters Prevention Technology, Kangwon National University) ;
- Yeon, In-Sung (Dept. of Civil Engineering, Chungbuk National University)
- 투고 : 2005.11.21
- 심사 : 2006.03.15
- 발행 : 2006.03.31
초록
본 연구에서는 GIS기법을 활용한 산악지역의 돌발홍수 기준우량을 산정하기위해 지형기후학적 순간단위유량도(geomorphoclimatic instantaneous unit hydrograph, GCIUH)와 연계하여 유출해석을 수행하였다. 천동계곡 유역의 평균경사, 면적, 유로특성등 지형자료 구축에 GIS기법을 적용하였으며, 특히 GCIUH의 중요 입력변수인 하천차수 결정시 GIS기법을 활용하여 차수를 선정하였다. 산악지역 유출량 산정의 적합성을 위해 천동계곡 유역(
This paper is to apply Geographical Information System (GIS) supported Geomorphoclimatic Instantaneous Unit Hydrograph (GCIUH) approach for the calculated flash flood trigger rainfall of the mountainous area. GIS techniques was applied in geography data construction such as average slope, drainage area, channel characteristics. Especially, decided stream order using GIS at stream order decision that is important for input variable of GCIUH. We compared the GCIUH peak discharge with the existing report using the design storm at Chundong basin(
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