一次冰雹天气过程的中小尺度系统特征分析  

The analysis of microsale and mesoscale character in a hail

作　　者：黄元森[1] 李霖[1] 

机构地区：[1]福建省南平市气象局,南平353000

出　　处：《福建气象》2007年第3期1-4,13,共5页

摘　　要：本文利用常规和非常规气象资料，从天气形势、物理量场、卫星云图和多普勒天气雷达资料，分析2006年5B8日发生在闽北的一次冰雹天气过程，结果表明此次强对流天气是在有利的高低空环流作用下，江淮流域的MCC东移加上高空弱冷空气的南下触发不稳定能量的释放；强的垂直风切变、低层的低空急流辐合、近地层的暖式切变和地面的低压环流引起强的垂直上升运动，为这次强对流的发生提供了动力抬升条件；同时通过对卫星云图扣雷达回波资料的分析，认为这次强对流天气是由具有中气旋特征的超级单体风暴造成。A hail synoptic process occurred in the north of Fujian in 8 May 2006 was analysed by use of unconventional and conventional meteorologic data such as weather situation physic field satellite photo and the new generation DOPPLER Rader data.The results show that the strong convection weather occurred under the favorable low and high circulation,the eastward move of MCC at the area of Yangzi and Huaihe river made the instable energy release with interaction of the weaker cole air in high level.The condition of dynamic was supplied by strong wind shear convergence of low level jet. warm shear in near earthe and low presser circulation.The strong convection hail was caused by the supercell which has the character of mesoeyclone.

关 键 词：冰雹 T-LogP图 MβCS 中气旋 超级单体风暴 

分 类 号：P458.121.1[天文地球—大气科学及气象学] V321.213[航空宇航科学与技术—人机与环境工程]