招远2012年首场暴雨天气过程分析

First rainstorm process analysis in Zhaoyuan

利用MICAPS常规观测资料和多普勒雷达资料,对招远2012年进入汛期首场暴雨天气过程的环流背景、物理量场及雷达回波进行了分析.表明:此次暴雨的影响系统是西风槽、低空切变线和副热带高压.副高边缘的东南急流为暴雨提供了充足的水汽;水汽、动力和热力条件分析水汽辐合与强降水中心一致,形成有利的上升运动,上冷和下暖,有较强的不稳定层结,为暴雨提供了不稳定能量.

MICAPS routine use observational data and Doppler radar data,Zhaoyuan entered the flood season opener against torrential rainstorm circulation background,physical field and radar echoes were analyzed.Showed that:The impact of the storm system is a westerly trough,low shear line and subtropical.The southeastern edge of the subtropical high rapids to provide adequate storm water vapor;Water vapor,dynamic and thermodynamic conditions of moisture convergence with the center line of heavy rainfall,The formation of a favorable upward motion,the cold and warm down,there is a strong unstable stratification,to provide a stable energy storm.