一次雹暴天气过程的天气特征及雷达图特征分析
李鸾;汪茜林;周先春
【期刊名称】《气象水文海洋仪器》 【年(卷),期】2012(029)004
【摘要】This article discusses a severe convective weather occurred in Wuhu from the following analysis of synoptic meteorology,mesoscale and radar features.It is a certainty that the hailstorm is caused by single supercell storm.The conclusions show that the background of this weather process is northeast vortex and trough,which possess unstable environmental conditions of upper-low jet stream,forward-tilting trough,upper divergence and lower convergence,upper-layer dry and lowerlayer wet ;mesoscale shear line and dry line are the trigger to the severe convective weather,and the factors of strong vertical wind sheer,CAPE value and the height of 0℃layer are all conducive to the hail ;severe convective weather expresses in the radar chart with features
of
high
VIL(vertically
integrated
liquid),high
echo
tops,mesocyclone,echo pendency and weak three-body scattering etc.%文章对发生在芜湖县的一次强对流天气进行了天气学分析、中尺度分析以及雷达图特征分析,确认此次雹暴天气由单个超级单体造成,并得出结论:此次过程天气背景为东北低涡和高空低槽;具有高低空急流、前倾槽、高空辐散低空辐合、上干下湿等不稳定环境条件;中尺度低层切变线和干线是触发强对流的主要影响系统,强垂直风切变、CAPE值、0℃层高度等因子有利于冰雹的产生;强对流在