인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
GIS 및 GCUH를 이용한 돌발홍수 경보발령기준우량 산정의 실유역 적용 연구 : 소백산 남천유역 중심 An Application of making the Flash Flood Warning Trigger Rainfall in Real Basin using GIS and GCUH -At the Namcheon Basin of the Sobaek Mountain-
GIS 및 GCUH를 이용한 돌발홍수 경보발령기준우량 산정의 실유역 적용 연구 : 소백산 남천유역 중심
초록·키워드
This paper is to make the flash flood warning trigger rainfall(FFWTR). It is based on the flash flood guidance(FFG). The difference is basin scale and threshold depth. This case is small scale basin and the threshold depth is not depth is overflowing bank but the depth is causing the loss of life. In this paper, the threshold depth is set to 0.5m and the channel discharge is computed using the Manning’s formula. And the decision of the FFWTR is computed by the geomorphoclimatic unit hydrograph(GCUH). First, the peak discharge of the GCUH is set to equal with the threshold discharge from the Manning’s formula. Effective Rainfall is calculated by using the geomorphologic instantaneous unit hydrograph(GIUH) parameters and digital terrain elevation data. Second, Total Rainfall is calculated by using the NRCS(Natural Resources Conservation Service) method with the total rainfall and effective rainfall. Third, the GCUH is decided by considering of the rainfall duration time and total rainfall at the given basin and rainfall event. The warning is announced when the basin average rainfall is larger than the FFWTR. At the Namcheon basin of the Sobaek mountain, when the threshold depth was set to 0.5 m, the threshold discharge was 10.28 m³/sec and the FFWTR was determined by about 9mm in the rainfall duration time, 20 minutes. This study provided the proper guidance of FFWTR to the small scale basin. Using of the geographic information system(GIS) and a series of programming enabled more rapid and efficient decision of the FFWTR.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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UCI(KEPA) : I410-ECN-0101-2009-531-018554260