排灌机械工程学报2018，Vol.36Issue(1)：35-41,7.DOI:10.3969/j.issn.1674-8530.16.0251
基于流域模型法的山洪灾害监测预警系统
Watershed model-based flash flood disaster monitoring and early warning system
摘要
Abstract
A flash flood disaster monitoring and early warning system was proposed based on watershed model to improve the accuracy and timeliness of the current system in use to minimize residents' personal injury and private property damage in mountain areas.At first,the system design principle,construction purpose,and basic modelling method were introduced according to the requirements of national water conservancy administration on informatization construction,flash flood disaster prevention and control.Since the rainfall threshold was one key factor in the system,the problems in three existing common methods for determining the threshold,i.e.single station rainfall,regional rainfall,and P-Ⅲ frequency hydrological curve estimation,were analyzed.Then a watershed rainfall-based method was put forward to decide the rainfall threshold.Finally,a watershed model-based flash flood disaster monitoring and early warning system was developed.The system was used to determine the rainfall thresholds in different periods with different water-holding capacities in some riverside villages in Datong County of Shanxi Province,and estimated thresholds are compared with the measured values.Results indicate that the measured rainfall thresholds are in between the thresholds in high-water-content and low-water-content soils,suggesting the method is feasible.The built watershed-based flash flood disaster monitoring and early warning system for Datong County has promoted mountain flash flood disaster prevention and control work in Datong.关键词
流域模型法/小流域/山洪灾害/监测预警系统/雨量预警指标/临界雨量Key words
watershed model method/small watershed/flash flood/monitoring and early warning system/rainfall warning indicator/rainfall thresholds分类
建筑与水利引用本文复制引用
敬双怡,王泽君,李卫平,莘明亮,任波,黄立志..基于流域模型法的山洪灾害监测预警系统[J].排灌机械工程学报,2018,36(1):35-41,7.基金项目
内蒙古自治区科学技术厅重大科技项目 （）
