| 一次大暴雨过程中高原低涡与西南低涡相互作用机制探讨 |
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| 引用本文： | 肖红茹,顾清源,何光碧,王瑾.一次大暴雨过程中高原低涡与西南低涡相互作用机制探讨[J].湖北气象,2009,28(1). |
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| 作者姓名： | 肖红茹 顾清源 何光碧 王瑾 |
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| 作者单位： | 肖红茹,XIAO Hong-ru(云南大学资源环境地球科学学院,昆明,650091;四川省气象台,成都,610071;中国气象局成都高原气象研究所,成都,610071);顾清源,GU Qing-yuan(四川省气象台,成都,610071);何光碧,HE Guang-bi(中国气象局成都高原气象研究所,成都,610071);王瑾,WANG Jin(国家卫星气象中心,北京,100081)
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| 摘 要： | 对2007年7月16-19日高原低涡东移形成的川渝地区大范围大暴雨过程,利用自动气象站雨量资料、常规观测资料、FY-2C TBB云图资料和T213分析场资料,采用天气动力学和中尺度诊断方法,分析了大暴雨的形成机制.结果表明:此次大范围大暴雨过程是高原低涡诱发西南低涡发展从而形成耦合系统造成的,其垂直上升运动气柱和涡柱的耦合发展与维持是低涡发生发展并产生持续性强降水的动力机制,对流层下部深厚不稳定层结的形成和维持是低涡发展并形成持续对流性降水的热力层结条件.
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| 关 键 词： | 高原低涡 西南低涡 大暴雨 相互作用机制 |
Mechanism of the Interaction between Plateau Vortex and Southwest Vortex During a Heavy Rain Event |
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| XIAO Hong-ru,,GU Qing-yuan,HE Guang-bi,WANG Jin.Mechanism of the Interaction between Plateau Vortex and Southwest Vortex During a Heavy Rain Event[J].Meteorology Journal of Hubei,2009,28(1). |
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| Authors: | XIAO Hong-ru GU Qing-yuan HE Guang-bi WANG Jin |
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| Institution: | 1.Institute of resource and environment;Yunnan University;kunming 650091;2.Sichuan Meteorological Observatory;Chengdu 610072;3.Institute of Plateau Meteorology;CMA;4.National Meteorology Satellite Center;Beijing 100081 |
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| Abstract: | Based on the rain gauge data at automatic weather stations,conventional observations,FY-2C TBB satellite pictures and T213 analysis data,the genesis mechanism of a large-scale heavy rain process from 16 to 19 of July in 2007 of Sichuan-Chongqing were analyzed by the synoptic dynamics and mesoscale diagnosis methods.The results show that:the occurrence of heavy rain are caused by the coupling system reformed by the Plateau vortex inducing the development of the southwest vortex;the development and persistenc... |
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| Keywords: | Plateau vortex Southwest vortex Heavy rain Interaction mechanism |
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