| dc.description.abstract | Due to the steep mountains and Typhoon packs cloudburst in Taiwan, serious disasters such as floods, landslides, and mudslides occur frequently, causing lives and property losses. However, engineering flood control are limited to many restrictions. Therefore, a more effective approaches measures is to develope effective disaster warning systems and timely grasp the torrential rain and typhoon dynamics, so as to achieve the early flood prevention and the reduction of disasters.
In order to improve the the applicability of Quantitative Precipitation Forecasting (QPF), the Fengshan river of as taken as basin as the research scope, this Seven rainfall events that occurred between 2019 and 2020 as spring rain, plum rain and typhoon. The correlation were selected between the effective rainfall period and the Station rainfall was analyzed. The results show that although the QPF rainfall data has a good grasp of the timing of flood occurrence. and it is feasible to use it in flood forecasting. It is also verified that the Rating-Curve of the model and the Rating-Curve announced by the Water Resources Agent (WRA) are both adequate for RT (Real-Time correction,RT) mode. The results show that the minimum correlation between the water level simulated by the model Rating-Curve and the station water level is 0.860 for the effective rainfall period, while the water level simulated by the WRA Rating-Curve and the station water level is 0.867. In addition, the effectiveness of RT system used in flood warning system was evaluated, and it was found that the ability of warning water level to start to rise and recede was better with the RT system. | en_US |