江淮地区对流云结构特征分析

Analysis of structural characteristics of convective clouds in Yangtze-Huaihe area

对流云发展到一定时期,常常会产生一些强对流天气,如短时强降水、大风、冰雹等,这些灾害性天气往往会给农业生产带来不利的影响。多年来,人们一直致力于强对流天气的研究工作。作者利用合肥多普勒雷达6层仰角(0.5,1.5,2.4,3.4,4.3,6.0)的基本反射率、回波顶高、垂直积分液态水(VIL)每隔6 min的资料,分析了江淮试验区2003年8月5日对流云的初生、合并、发展、消散的演变过程,试图找出江淮地区对流云的结构特征。

It will bring some strong convection weather such as short-range precipitation,strong wind,hail,and so on,when the convective clouds develop to a certain period.This disaster weather often exerts a negative effect in agricultural production.Researchers have been committed to the strong convective weather study for many years.In this paper,based on the Doppler 6-minute data in Hefei including the base reflectivity,echo tops,vertically integrated liquid（VIL） with 6-layer elevation（0.5,1.5,2.4,3.4,4.3,6.0）,the evolution process of con-vective clouds containing newborn,mergers,development and dissipation in Yangtze-Huaihe experiment area on August 5,2003 are analyzed,trying to reveal the structure characteristics of convective clouds in this area.