广西强对流天气的天气形势分析与雷达临近预警  

Analysis on Guangxi Convective Weather Situation and Radar Early Warning

作　　者：李向红[1,2] 唐伍斌[1] 李垂军[1] 姚立宏[1] 

机构地区：[1]桂林市气象局,广西桂林541001 [2]广西气象减灾研究所,广西南宁530022

出　　处：《灾害学》2009年第2期46-50,共5页Journal of Catastrophology

基　　金：广西科学技术厅项目(桂科自0728076);国家自然科学基金项目(40865001);广西气象局重点攻关项目(QK200727)

摘　　要：分析2004-2008年广西强对流天气灾害与各层天气资料得出强对流的大尺度背景场特征,进行了广西大风、冰雹等强对流天气的天气分型。然后利用桂林CINRAD-SB天气雷达产品给出3种对流性天气雷达回波特征,并找出临近预警指标。同时利用TREC交叉相关方法预报强对流回波未来的移动方向。By analyzing convective weather disasters and data of every atmospheric stratification during 2004 to 2008 in Guangxi, characteristics of the large scale background field of convection are got. The pattern of the convective weather such as strong wind and hail storm is identified. Base on the products of CINRAD-SB, the radar characteristics of the convective weather and the warning index are given. Meanwhile, the future moving direction of the convective echo is forecasted by the TREC method.

关 键 词：大风 冰雹 TREC 临近预警 广西 

分 类 号：P442[天文地球—大气科学及气象学] P406