초록

용어보기논문에서 용어와 풀이말을 자동 추출한 결과로, 시범 서비스 중입니다. AI-Helper

Abstract ▼ AI-Helper

The flood forecast and warning system means the system which can watch and predict flood disaster in advance and is one of the representing unstructured measures to mitigate flood disaster damage. Recently if we regard the characteristic of the history of torrential rain as rapid rise of water level...

The flood forecast and warning system means the system which can watch and predict flood disaster in advance and is one of the representing unstructured measures to mitigate flood disaster damage. Recently if we regard the characteristic of the history of torrential rain as rapid rise of water level of river due to regional heavy rain, in the flood forecast and warning system, securing preceding prediction time necessary for evacuation time and decision making is very important element. Especially, for urban stream basin because of the characteristics of short reaching time the effective method of flood forecast and warning is essential for securing preceding time. This study suggested the analysis method and standard in order to secure preceding time for flood warning in urban stream. This method predicts the water level change in the stream when rainfall event is predicted and then upper- and down-stream water levels are considered to analysis the water level change according to the predicted rainfall depth. Uper- and down-stream water levels are respectively the water level at warning point and the backwater level at joined river point. In this study, the suggested method was applied to Soyang stream which is urban mide and samll river. For the conference for the water level conditions which are various, we composed the rainfall scenario as the standard for flood warning which considers both cumulative precipitation and rainfall duration.

주제어