Zhai Xiaoyan1,2*, Liu Ronghua1,2, Liu Qi1,2, Wang Xuemei1,2
1. China Institute of Water Resources and Hydropower Research, Beijing, 100038, China;
2. Research Center on Flood and Drought Disaster Reduction of the Ministry of Water Resources, Beijing, 100038, China
Objectives of the study
Flash flood disaster induced by heavy rainfall with short duration is regarded as one of the most devastating natural hazards in China(Fig.1), which are characterized by sudden on set, fast rising and declining processes, and pose great challenges for flash flood disaster prevention and control. The accurate determination of flash flood early-warning indicators (EWIs), which are commonly classified as rainfall and water discharge indicators, is of great significance for flash flood forecasting and warning. The main objective of this study is to compare the accuracy and lead times of commonly adopted EWIs in China, which is expected to provide insights in to operational flash flood early-warning.