| 南京"2003.2.10"寒潮降温降雨(雪)天气过程初步分析 |
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| 引用本文： | 苏晓燕,张贵明,徐卫丽.南京"2003.2.10"寒潮降温降雨(雪)天气过程初步分析[J].山西气象,2003(3):5-7,11. |
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| 作者姓名： | 苏晓燕 张贵明 徐卫丽 |
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| 作者单位： | [1]山西省太原市气象局，山西太原030002 [2]山西省朔州市气象局，山西朔州036001 |
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| 摘 要： | 对2003年2月10日至11日发生在南京的一次寒潮降温降雨(雪)的主要影响系统，如阻塞高压、高空槽、横槽、中低层暖式切变线、地面冷锋以及地面暖低压倒槽等进行了描述和分析，并对某些物理量进行了分析。分析得出：这次寒潮降温降雨(雪)天气是在高空500hPa乌拉尔山阻塞高压崩溃、巴尔喀什湖至准噶尔盆地的横槽转竖，冷空气从西北路径东移南下，中低层冷槽与暖式切变线接合以及地面冷锋切入暖低压倒槽等天气系统的作用下发生的，并归纳出此类天气预报的指示系统，对于做好寒潮天气预报具有指导作用。
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| 关 键 词： | 寒潮降温降雨（雪） 高空冷槽 切变线 冷锋 |
| 文章编号： | 1004-5732(2003)03-0005-03 |
Primary Analysis of Weather Process with Cold Wave, Temperature Decreasing and Rain (Snow)in Nanjing on 10 February 2003 |
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| Su Xiaoyan,Zhang Guiming,Xu Weili.Primary Analysis of Weather Process with Cold Wave, Temperature Decreasing and Rain (Snow)in Nanjing on 10 February 2003[J].Shanxi Meteorological Quarterly,2003(3):5-7,11. |
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| Authors: | Su Xiaoyan Zhang Guiming Xu Weili |
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| Abstract: | A weather process along with cold wave,temperature decreasing and rain(snow) appeared in Nanjing on 10 February 2003.Some main weather systems,included blocking high, high trough,across trough,middle and low layer warm shear line,ground cold front as well as ground warm low upend trough and so on,were described and some physical variables were analyzed.The results showed: this weather process happened in effects of some weather systems,such as upper air 500hpa Ural Mountains blocking high collapsing,across trough from the Lake Balkhash to Dzungar basin turned upright,cold air moving from northwest to south,middle and low layer cold trough jointing with warm shear line and ground cold front cuting into warm low upend trough.The paper concluded indicating system of this kind of weather forecast and has instruction function to make cold wave forecast. |
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| Keywords: | cold wave with temperature decreasing and rain(snow) high cold trough shear line cold front |
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