上海浦东机场一次连续出现的强对流天气对比分析  

Analysis of a Consecutive Convection Process in Pudong International Airport

作　　者：唐民[1] 梅珏[1] 

机构地区：[1]民航华东空管局,上海200335

出　　处：《气象》2009年第10期25-31,I0002,共8页Meteorological Monthly

摘　　要：2006年6月22日从中午至半夜,上海浦东机场连续发生了3次强对流天气过程,对飞行安全及航班的正常都造成了很大影响。利用各种常规观测、多普勒雷达、卫星云图及风廓线仪等资料,对6月22日的连续性对流过程进行对比分析。发现此连续对流过程中3次强对流天气发生、发展过程具有明显差异,其触发机制也各不相同。其中第一次强对流天气为局地热力对流;第二次强对流天气为锋面过境引起的飑线过程;而第三次强对流天气是伴随中尺度低压环流的对流过程。在各次强对流过程发生前,浦东机场风廓线仪资料中均出现明显的风向的垂直切变,具有较好的预警意义。Based on the conventional data, satellite image, Doppler radar echo an d wind profiler information, a consecutive convection process in the Pudong Int ernat ional Airport on June 22, 2006 is analyzed. The results show that the first seve re convection event in the process was a local heat convection, the second sever e co nvection event was a squall line triggered by cold front, and the third severe c onve ction event was caused by mesoscale depression circulation. During the time earl ier before the squa ll line occurs, an apparent vertical wind shear was shown by the wind profiler information of the Pudong International Airport. It was of early warning signif icance.

关 键 词：飑线 强对流 多普勒雷达 卫星云图 风廓线仪 

分 类 号：P448[天文地球—大气科学及气象学] TU248.6[建筑科学—建筑设计及理论]