中国防汛抗旱2024，Vol.34Issue(5)：27-31,44,6.DOI:10.16867/j.issn.1673-9264.2024108
基于测雨雷达与地面雨量站的山洪模拟及灾害预警时效分析
Flash flood simulation and disaster warning leading time analysis based on data from rainfall radar and ground rain gauges
摘要
Abstract
The traditional early warning of rainstorm flash flood mainly relies on the rainfall data of the ground rain gauges,which is prone to false and missing alarms or difficult to meet the warning timeliness.Therefore,moving forward the flash flood warning response time and monitoring the area rainfall of the watershed are important technical means to meet the goal of flash flood defense,and the application of rainfall radar technology provides a new early warning idea for flash flood defense.In this paper,a rainstorm flash flood disaster in Liulin Town of Suizhou City of Hubei Province on August 12 of 2021 is taken as an example.The modular distributed hydrological model(MDHM)is used to simulate the flash flood process and carry out early warning analysis.The effectiveness and reliability of the flash flood early warning under the two rainfall data sources are evaluated by comparing the disaster warning timeliness under the rainfall input conditions based on the rainfall radar and the ground rain gauges.It is found that the rainfall forecast by the rainfall radar combined with the early warning of steep rise rate of water level can significantly improve the early warning effect and provide technical reference for flash flood management.关键词
山洪灾害/测雨雷达/山洪模拟/雨量站/预警时效/湖北随州柳林镇Key words
flash flood disaster/rainfall radar/flash flood simulation/rain gauge/warning timeliness/Liulin Town of Suizhou City of Hubei Province分类
建筑与水利引用本文复制引用
孔坚,许泽星,舒毅,王协康..基于测雨雷达与地面雨量站的山洪模拟及灾害预警时效分析[J].中国防汛抗旱,2024,34(5):27-31,44,6.基金项目
国家自然科学基金长江水科学研究联合基金项目资助(U2340201) （U2340201）
国家自然科学基金重点项目(52239006). （52239006）
