安徽农业科学2011，Vol.39Issue(31)：19430-19434,5.
一次超级单体风暴三维结构及回波特征量分析
Analysis on Three-dimensional Structure and Echo Characteristic Quantity of a Super Monomer Storm
摘要
Abstract
[Objective] The research aimed to study three-dimensional structure and echo characteristic quantity of a super monomer storm in central Gansu on May 30, 2005. [Method] By the monitoring data of Lanzhou CINRAD/CC Doppler radar, the three-dimensional structure characteristics of a rare super monomer storm which happened in the central area of Gansu on May 30, 2005 were analyzed. We tried to reveal three-dimensional structure and echo characteristic index of super monomer storm in the northeast of Qinghai-Tibet Plateau, and find reason of rare heavy hail. [ Result] The large-scale strong storm was formed by the common effect of Mongolia cold vortex, low-level jet and ground cold front. At the mature period of main echo development, on reflectivity factor map, it presented obvious inverted "V" shaped structure in the left front of low-level storm, and typical hook shape, "person" type echo characteristics in the right rear. The bounded weak echo zone (vault) in low level corresponded with strong echo overhanging body in high level. The strong reflectivity factor zone surpassed 60 dBz. It presented one weak meso-cyclone on the corresponding radical velocity map. The jumped characteristic of VIL could be as one of indexes for judging that hail started to grow. Almost all storms ( VIL ≥4.00 g/m3) had more obvious guidance significance than VIL for judging heavy hail (diameter ≥20 mm). [Conclusion] The research provided reference for nowcasting of strong convective weather and artificial hail suppression.关键词
超级单体/风暴/三维结构/回波特征量Key words
Super monomer/ Storm/ Three-dimensional structure/ Echo characteristic quantity分类
天文与地球科学引用本文复制引用
何金梅,付双喜,陈添宇..一次超级单体风暴三维结构及回波特征量分析[J].安徽农业科学,2011,39(31):19430-19434,5.基金项目
公益性行业(气象)科研专项(GYHY200906024) （气象）
中国气象局气象新技术推广项目(CMATG2009MS38). （CMATG2009MS38）
