摘要
利用常规气象探测资料、自动站资料和石河子CINRAD/CC多普勒天气雷达观测资料,对2010年5月2日发生在准噶尔盆地南缘的一次强对流天气进行了分析。结果表明:在多普勒雷达反射率因子PPI图出现了>50 dBz强回波区及>60 dBz强回波中心;在RHI图出现了穹窿结构,且>50 dBz强回波区高度远高于当天0℃层的高度;在平均径向速度图上出现了中气旋、逆风区;在不同仰角的PPI上气流表现出强烈的旋转和上升;垂直累积液态含水量(VIL)产品对冰雹落区预报有很好的指示作用;风暴跟踪信息(STI)对冰雹天气的出现具有很好预警意义。
By using of the routine data,automatism station data and CINRAD/CC Doppler radar data,this paper analyzed a strong convection weather which took place Shihezi region located in the southern edge of Zhungeer Basin on May 2nd,2010.The results showed that： intense echo center appeared in the Doppler radar reflectivity factor PPI.Cove configuration appeared in the RHI picture,and the intensity of 50 dBz strong echo section was higher than that of 0℃ level.A mesocyclone and adverse wind area appeared in the mean radial velocity map.Strong rotation and ascending current appeared PPI of different elevation.The product of vertical integral liquid water（VIL） was the good indicator for the forecasting of hail fallout zone,and storm track information（STI） was significant for hailstone weather warning.
出处
《沙漠与绿洲气象》
2011年第5期43-46,共4页
Desert and Oasis Meteorology
基金
新疆气象局青年基金项目(201131)资助
关键词
冰雹
天气形势
雷达产品分析
hailstone
weather situation
application of radar product
