摘要
应用常规天气图资料、新一代雷达产品以及NCEP/NCAR再分析资料,对2008年6月25日豫北辉县市发生的一次强对流天气过程进行诊断分析,结果表明:中低层的风切变和冷空气的入侵是造成此次强对流天气的主要因素,涡度、垂直螺旋度、假相当位温和雷达回波以及垂直积分液态含水量的分布特征,对强对流的发生、发展以及产生区域有很好的指示意义。
With the data utilization of weather charts, new generation radar product and NCEP/ NCAR reanalysis, the synoptic diagnosis on strong convection happened on June 25, 2008 in Huixian county has been analyzed. The results show ： the wind shear in middle and low air level and cold air invasion are the key factors for the strong convective weather. It has a better indicative significance to convective weather＇ s occurrence, developing and origin etc, which with the distribution characteristics of vorticity, vertical helicity, potential pseudo -equivalent temperature, radar echo and vertically integrated liquid.
出处
《气象与环境科学》
2009年第B09期209-212,共4页
Meteorological and Environmental Sciences
关键词
涡度
垂直螺旋度
假相当位温
水汽通量
vorticity
vertical helicity
potential pseudo - equivalent temperature
vapor flux
