凉山山地强降雨型泥石流灾害雷达短临预警技术研究  

A Research on the Short-time Forecasting and Early Warning Based on Radar Echo for the Heavy Rain Type Debris Flows in Liangshan

作　　者：吴莉娟[1,2] 江智全 肖天贵[2,3] 顾林康 王增武[3] 许强[2] 

机构地区：[1]四川省凉山州气象局,西昌615000 [2]成都理工大学地质灾害防治与地质环境保护国家重点实验室,成都610059 [3]成都信息工程学院大气科学学院,成都610225

出　　处：《高原山地气象研究》2013年第1期86-89,共4页Plateau and Mountain Meteorology Research

基　　金：凉山州科技局重点科技研究项目(2011J009);地质灾害防治与地质环境保护国家重点实验室基金项目(SKLGP2012K007);973计划项目(2013CB733206)

摘　　要：基于2006～2011年的泥石流灾害案例、强降水观测资料、GIS技术及对应的雷达回波信息,研究了凉山地区基于强降雨型雷达回波信号的泥石流灾害的短时临近预报预警技术,根据群发、大型、中型、小型泥石流灾害级次的最强回波强度、回波高度、强降水回波持续时间信息,结合下垫面地质灾害隐患点信息,提出了凉山地区泥石流发生的短临预警指标;依托雷达回波对降水云团信号的显著性、连续性探测显示特征以及GIS技术,建立了凉山地区泥石流灾害短临预报预警系统,极大地增强了凉山地区防灾减灾应急处置能力,对凉山地区地质灾害防治工作具有重大意义。Basing on the geological disaster cases information of 2006 -2011, the heavy rainfall observation data and the corresponding radar echo information, the GIS technology and the corresponding radar echo information, the debris flow short - time forecast and early warning technology based on heavy rain type radar echo signal has been researched. Depending on the strongest echo intensity, echo height, strong precipitation echo duration of mass, large, medium and small scale of debris flows, combined with the bottom level of the potential points of geo - disasters information, the index of short - time forecast and early warning of Liangshan has been presented. Basing on the indicated characteristics of the significance and continuity of radar echo signal to the rainfall cloud and the GIS technology, the short - time early warning system of debris flows in Liangshan has been established, which greatly enhances disaster prevention and mitigation, emergency response capabilities, and this has great significance to the geological disasters prevention in Liangshan.

关 键 词：强降雨 雷达回波信号 泥石流灾害 短时临近预报预警 地质灾害 

分 类 号：P642.2[天文地球—工程地质学]