Early warning model of flash flood disasters based on rainfall-driving index in small watersheds of Fuxing River, Chongqing City
PENG Wanbing1, ZHAO Dong1, HUANG Er2, WANG Xiekang2
1. Department of Hydrology and Water Resource of the Yangtze River of Upper Reaches, Chongqing 630014; 2. State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065
Abstract：The difficulty of prevention and control of flash flood disasters is that the relationship of rainfall, dis-charge and water level is complicated and inter-changing, and the early warning model based on rainfall condi-tions derived from disastrous water level is unable to reflect the intrinsic rainfall and runoff process. Based on the investigation of flash flood disasters in the small watersheds of Fuxing River in Chongqing, this paper adopts the rainfall driving index method, fully considering the influence of rainfall intensity and early rainfall, establishes an early warning model based on the relationship between rainfall intensity and effective cumulative rainfal, and pro-poses the rainfall driving indicator 2 000 as an immediate transfer indicator, 1 800 as an early warning indicator, which provides a scientific basis for flash flood disaster prevention and control in small watersheds.
彭万兵, 赵东, 黄尔, 王协康. 重庆市复兴河小流域山洪灾害降雨驱动指标预警模型研究[J]. 中国防汛抗旱, 2019, 29(7): 1-4.
PENG Wanbing, ZHAO Dong, HUANG Er, WANG Xiekang. Early warning model of flash flood disasters based on rainfall-driving index in small watersheds of Fuxing River, Chongqing City. journal1, 2019, 29(7): 1-4.
2019, Vol. 29 
