基于大石桥地区山洪预警动态指标确定探析

Analysis on Dynamic Index Determination of Mountain Flood Early Warning based on Dashiqiao Area

文章采用时变增益模型分析了大石桥地区相同条件下的山洪预警临界雨量,结果表明:该方法在综合考虑降雨强度及其分布的情况下对山洪灾害的影响,根据不同时期降建立与之影响因素之间的关系,从而解决了传统山洪预警指标的不能考虑单一因素的局限性,为山洪预警指标的确立提供了科学依据。

In this paper,the time-varying gain model is used to analyze the critical rainfall of flash flood warning in Dashiqiao Area under the same conditions.The results show that the method comprehensively considers the influence of rainfall intensity and its distribution on the flash flood disaster,and establishes the relationship with the influencing factors according to the precipitation in different periods,so as to solve the limitation that the traditional flash flood warning index can't consider a single factor.It provides a scientific basis for the establishment of early warning index of mountain torrents.