| 滇东北2次飑线过程对比分析 |
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| 引用本文： | 马红,郑洪,曾厅余,刘少荣,余峙丹.滇东北2次飑线过程对比分析[J].云南大学学报(自然科学版),2011(Z1). |
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| 作者姓名： | 马红 郑洪 曾厅余 刘少荣 余峙丹 |
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| 作者单位： | 云南大学大气科学系;昭通市气象局;楚雄州气象局; |
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| 基金项目： | 云南省气象局课题“雷达产品在局地强对流天气临近预报中的应用”项目资助(YB201108) |
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| 摘 要： | 利用常规观测资料、地面自动站资料、卫星云图和多普勒天气雷达资料,对比分析了发生在滇东北的2次飑线过程.结果表明:边界层辐合线是强对流产生的触发系统,山脉的抬升作用有利于强对流的产生和发展.2007.6.14飑线发生在冷锋前暖区中,以大风冰雹天气为主.2009.6.19飑线发生在冷锋前沿,前期以大风冰雹天气为主,后期出现强降水.雷达回波上2次飑线都出现弓形回波特征和前沿低层辐合区,但2007.6.14飑线表现为单体弓形回波,直接产生大风冰雹天气.2009.6.19飑线表现为弓形回波复合体,并伴有中气旋出现.飑线右前侧超级单体是产生强对流天气的直接系统.飑线前沿低层辐合区的长时间维持导致大范围强降水出现.
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| 关 键 词： | 飑线 边界层辐合线 雷达回波 对比分析 |
Comparative analysis of two squall lines happened in the Northeast of Yunnan province |
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| MA Hong,ZHENG Hong,ZENG Ting-yu,LIU Shao-rong,YU Zhi-dan.Comparative analysis of two squall lines happened in the Northeast of Yunnan province[J].Journal of Yunnan University(Natural Sciences),2011(Z1). |
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| Authors: | MA Hong ZHENG Hong ZENG Ting-yu LIU Shao-rong YU Zhi-dan |
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| Institution: | MA Hong1,2,ZHENG Hong2,ZENG Ting-yu2,LIU Shao-rong2,YU Zhi-dan3(1.Department of Atmospheric Science,Yunnan University,Kunming 650091,China,2.Zhaotong Meteorological Bureau,Zhaotong 657000,3.Chuxiong Meteorological Bureau,Chuxiong 675000,China) |
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| Abstract: | Based on conventional data,automatic station data,satellite cloud images and Doppler radar data,two squall lines happened in the northeast of Yunnan Province were analyzed.The result showed that boundary layer convergence line triggered strong convective storm,the lifting of the mountain accelerated the development of strong convection.The 2007.6.14 squall line happened in the warm region before cold front,the major weather phenomena were hail and strong wind.The 2009.6.19 squall line happened before cold f... |
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| Keywords: | squall line boundary layer convergence line radar echo comparative analysis |
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