2006年6月28日河南省强对流天气过程分析  

Severe Convection Weather Analysis of Henan on June 28,2006

作　　者：张一平 席世平 王国安[2] 范学锋 乔春贵 

机构地区：[1]河南省气象台,郑州450003 [2]河南省气候中心,郑州450003

出　　处：《气象与环境科学》2007年第2期35-37,共3页Meteorological and Environmental Sciences

基　　金：河南省气象局"河南省强对流风暴演变预报技术研究"项目(Z200604)

摘　　要：利用濮阳、三门峡新一代天气雷达产品及云图、自动站等资料，分析了2006年6月28日河南省强对流天气过程。结果表明：濮阳新一代天气雷达基本反射率明显特征为弓形带状回波，对应径向速度上为一条明显的辐合线，强降水回波带和此中尺度辐合线位置吻合；三门峡新一代天气雷达显示，洛宁冰雹的组合反射率达65dBz，回波顶高达14—17km，垂直液态含水量达55—65kg·m^-2，径向速度产品显示有中尺度气旋，以上特征早于降雹30min左右出现。By using Puyang and Sanmenxia CINRAD product combined with satellite cloud pictures and auto-station data etc, the severe convection weather process of Henan on June 28,2006 was analyzed. The results showed the obvious characteristics of Puyang CINRAD base reflectivity was a arched band echo. The corresponding radial velocity field had an obvious convergence line. The radar echoes band of heavy rain tallied with the mesoscale convergence line. Sanmenxia CINRAD data indicated that the composite reflectivity of Luoning hail was 65dBz, and the echo tops were as high as 14--17kin, and the vertical integrated liquid reached 55--65 kg · m^-2. There was a mesocyclone among the radial velocity product. The characteristics above occurred about 30 minutes earlier than the hail.

关 键 词：强对流天气 辐合线 组合反射率 垂直液态含水量 中气旋 

分 类 号：P458.121.2[天文地球—大气科学及气象学]