| 2009年大连春季强对流雨雪天气过程分析 |
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| 引用本文： | 李燕,石小龙,王树雄,吴杞平.2009年大连春季强对流雨雪天气过程分析[J].高原气象,2011,30(4):961-968. |
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| 作者姓名： | 李燕 石小龙 王树雄 吴杞平 |
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| 作者单位： | 大连市气象台,辽宁大连,116001 |
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| 基金项目： | 大连市科技局科技计划项目“大连地区低温雨雪冰冻灾害的研究及预警系统”(2009E12SF167)资助 |
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| 摘 要： | 2009年4月15日大连出现了春季最晚的降雪天气。利用常规资料、自动气象站和雷达等多种资料及中尺度模式MM5对这次强对流雨雪天气过程进行了分析和模拟,结果表明,200hPa急流、500hPa贝加尔湖冷槽南压形成的冷涡、中低层南支槽前水汽输送以及地面冷锋是产生大连春季强对流雨雪天气的环流背景;中层干冷空气叠加在低层暖湿层...
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| 关 键 词： | 大连 春季降雪 强对流雨雪 MM5模式 逆温层 冷锋云系 |
Analysis on Severe Convection Rain and Snow Weather Processes in Dalian in Spring of 2009 |
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| LI Yan,SHI Xiao-long,WANG Shu-xiong,WU Qi-ping.Analysis on Severe Convection Rain and Snow Weather Processes in Dalian in Spring of 2009[J].Plateau Meteorology,2011,30(4):961-968. |
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| Authors: | LI Yan SHI Xiao-long WANG Shu-xiong WU Qi-ping |
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| Affiliation: | LI Yan,SHI Xiao-long,WANG Shu-xiong,WU Qi-ping(Dalian Meteorological Observatory,Dalian 116001,China) |
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| Abstract: | There was the latest spring snowfall weather process on 15 April 2009.The rain and snow weather processes of severe convection are analyzed using the conventional observation data,automatic meteorological station data,MM5 model,radar data and so on.The results show that the circulation background of the severe convection event is composed of many parts which include 200 hPa jet stream,500 hPa cold trough,vapor transportation in middle-low levels and surface cold front.In addition,the dry and cold air of mid... |
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| Keywords: | Dalian Spring snowfall Severe convection rain and snow MM5 model Temperature inversion layer Cold front cloud system |
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