| 2010年6月18日四川地区强对流天气过程分析 |
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| 引用本文： | 林莉,李晓婧,唐钱奎.2010年6月18日四川地区强对流天气过程分析[J].四川气象,2011(4):36-41. |
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| 作者姓名： | 林莉 李晓婧 唐钱奎 |
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| 作者单位： | 民航西南空管局气象中心;中国民航飞行学院空管学院;成都市气象局; |
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| 摘 要： | 利用NCEP再分析资料、常规观测资料,对2010年6月18～19日发生在川渝地区的强降水和强对流天气过程进行了分析。结果表明,水汽输送主要来自孟加拉湾,强对流天气与垂直速度及涡度所表现的强烈上升区存在一定的对应关系。高层对流不稳定层结的向南发展,配合低层条件不稳定,为形成强对流天气提供了强迫机制。湿Q矢量散度负值区与后续的6h强降水中心对应得较好。
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| 关 键 词： | 中尺度天气 对流系统 诊断分析 |
Analysis of a Severe Convection Weather in Sichuan and Chongqing on June 18-19,2010 |
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| LIN Li,LI Xiaojing,TANG Qiankui.Analysis of a Severe Convection Weather in Sichuan and Chongqing on June 18-19,2010[J].Journal of Sichuan Meteorology,2011(4):36-41. |
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| Authors: | LIN Li LI Xiaojing TANG Qiankui |
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| Institution: | LIN Li1,LI Xiaojing2,TANG Qiankui3(1.Meteorological Center of Southwest Air Traffic Management,Chengdu,610202,2.Civil Aviation Flight University Of China,Guanghan,618307,3.Chengdu Meteorological Administration,610071) |
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| Abstract: | Using the routine observation data and NCEP 1°×1°final-analysis data,a case of severe convection weather in Sichuan and Chongqing was analyzed.The main conclusions are ：the moisture transportation flux is transferred from Bay of Bengal.The area of severe convective weather process are corresponding with upwards vertical velocity field and vorticity.The instable atmosphere of upper layer moves southwards,and cooperate with conditionally unstable atmosphere of lower layer are advantageous to formation and developing of the convective weather.Wet Q Vector divergence is more closely associated with precipitation in the later 6-hour. |
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| Keywords: | Meso-scale weather strong convective system diagnostic analysis |
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