摘要
以盐源县的泥石流发生为例,研究了凉山地区出现局地强降雨引发的中型泥石流灾害的气象成因。运用天气学方法,使用NCEP再分析资料以及卫星云图和雷达回波等遥感资料,从环流形势、强对流不稳定、卫星云图和雷达回波图像演变特征,研究了台风登陆时凉山地区强降雨引起泥石流灾害形成的气象成因,并讨论了应用多普勒雷达回波对局地强降水及泥石流灾害短时临近监测和预报预警的思路。
In this paper, taking the debris flow of Yanyuan as an example, the meteorological causes of the medium- intensity debris flows occurred in Liangshan Prefecture after local heavy rain are researched. With method d synoptic meteorology, basing on the NCEP reanalysis data and satellite cloud pictures and remote sensing data such as radar e- choes, from circulation situation, strong convective instability, satellite cloud pictures and radar image evolution char- acteristics, the meteorological causes of debris flow hazards after heavy rain in time of the typhoon are studied. And the idea of short-term forecasting and nowcasting monitoring of local rainfall and debris flow hazards by doppler radar echo is discussed.
出处
《成都信息工程学院学报》
2011年第6期675-686,共12页
Journal of Chengdu University of Information Technology
基金
凉山州科技局2011年度州级重点科研开发项目(2011J009)对本文的资助
关键词
大气科学
短临天气预报
泥石流
地质灾害
强对流天气
雷达回波分析
atmospheric sciences
short-term forecasting and nowcasting
debris flow
geological hazards
strong con-vective weather
the radar echo analysis
