安徽农业科学2012，Vol.40Issue(35)：17227-17230,4.
湘中一次特大暴雨的中尺度特征分析
Mesoscale Analysis of A Torrential Rain in Central Hunan
摘要
Abstract
Using NCEP/NCAR, TBB and WRF mesoscale numerical weather prediction model data, the formation mechanism of mesoscale con-vective system was analyzed based on the persistent heavy rainfall from 1/2 July 2009 in central of Hunan Province. The results showed that process of torrential rain formation is accompanied with strong mesoscale convective motion. The rainfall in some places reach strong convective storm level. The main influencing system in the heavy rainstorm process is mesoscale convective system of front moving to the south, and the direct reason is that echo with mesoscale weather systems moves to the shear line from north to south rolling and changing. The persistent convergence plays an important role as the dynamic condition on the formation of rainstorm area. Continuous warm advection and vertical wind shear has a dominant effect on rainstorm during the development and maintenance process.关键词
湖南湘中/特大暴雨/成因分析/中尺度特征Key words
The center of Hunan Province/ Torrential rain/ Causative analysis/ Mesoscale characteristics分类
农业科技引用本文复制引用
邓见英,刘志雄,王萍,曾俊,胡英超..湘中一次特大暴雨的中尺度特征分析[J].安徽农业科学,2012,40(35):17227-17230,4.基金项目
湖南省气象局重点科研课题"基于综合气象资料的湖南大暴雨形成机理和预报方法研究[2010]233号". （）
