| 2009年夏季云南一次由MCC引发的致洪暴雨分析 |
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| 引用本文： | 黄慧君,钟爱华,李庆红.2009年夏季云南一次由MCC引发的致洪暴雨分析[J].云南大学学报(自然科学版),2011,0(5):533-539. |
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| 作者姓名： | 黄慧君 钟爱华 李庆红 |
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| 作者单位： | 大理州气象局;云南省季风与气象灾害研究实验室; |
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| 基金项目： | 云南省气象局业务能力研究与提升建设专项项目(YM200902)资助 |
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| 摘 要： | 利用卫星云图、常规天气资料及物理量场资料等,对2009年6月25日夜间到26日上午云南省一次中尺度对流复合体(MCC)和致洪暴雨天气过程进行诊断分析.结果表明:MCC是造成暴雨的直接影响系统,MCC从生成、持续到消亡长达10 h多,强降水出现在MCC进入成熟阶段.中尺度MCC发生发展于500 hPa四川东南部和云南东部的槽区,700 hPa切变线东南侧.云南上空总能量逐步增强,不稳定能量的积聚为中尺度MCC发展提供了重要能源.低层水汽条件较好,MCC发生区700 hPa湿度接近饱和,T-Td≤2℃,最大比湿达12 g/kg,为MCC的发生、发展提供了充足的水汽条件.云南低层辐合高层辐散的形势逐渐加强,850～100 hPa大部都处于明显的上升运动区,为MCC的活动及发展提供了有利的动力条件.
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| 关 键 词： | MCC 暴雨 诊断分析 |
An analysis of a rainstorm caused by MCC in Summer 2009 in Yunnan province |
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| HUANG Hui-jun,ZHONG Ai-hua,LI Qing-hong.An analysis of a rainstorm caused by MCC in Summer 2009 in Yunnan province[J].Journal of Yunnan University(Natural Sciences),2011,0(5):533-539. |
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| Authors: | HUANG Hui-jun ZHONG Ai-hua LI Qing-hong |
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| Institution: | HUANG Hui-jun1,2,ZHONG Ai-hua1,LI Qing-hong1,2(1.The Meteorological Bureau of Dali Nationality Autonomous Prefecture of Yunnan Province,Dali 671000,China,2.Monsoon and Meteorological Disaster Research Laboratory,Kunming 650034,China) |
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| Abstract: | Applying satellite cloud images and the conventional observations,the rainstorm in Yunnan province on June 26,2009 caused by MCC(Mesoscale Convective Complex) has been analyzed in light of large-scale environmental field and physical quantity.The results show that MCC was the directly influencial system to the rainstorm.The life cycle of MCC from generation,maintaining to disappearing was about over ten hours.MCC occurred in 500 hPa trough area between south-east of Sichuan and east of Yunnan and 700 hPa so... |
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| Keywords: | MCC heavy rainfall comprehensive analysis |
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