| 2009年造成广东深秋一次急降温冷空气的特点 |
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| 引用本文： | 陈炳洪,林良勋,肖伟军.2009年造成广东深秋一次急降温冷空气的特点[J].广东气象,2010,32(1):12-14. |
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| 作者姓名： | 陈炳洪 林良勋 肖伟军 |
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| 作者单位： | 广州中心气象台,广东广州,510080 |
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| 基金项目： | 广东省科学技术厅项目“亚运会气象预报服务系统研究”(2009A030302012)资助 |
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| 摘 要： | 分析2009年11月中旬广东入秋以来最强的一次冷空气的环流形势,结果表明,此次冷空气属于横槽转竖型,乌拉尔山阻塞高压稳定维持使得冷空气在中高纬堆积,横槽转竖后引导下来的冷空气在南岭山脉受到阻挡。分析冷空气的垂直结构发现,本次冷空气较为浅薄,堆积发生在850hPa以下,弱冷空气经过长时间堆积形成较强冷空气,冷空气带来的阴雨天气使得降温以平流降温为主。
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| 关 键 词： | 天气学 阻塞高压 横槽 深秋冷空气 广东 |
The Analysis of Cold Air Process with Sharp Temperature Drop in Guangdong in Late Autumn 2009 |
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| CHEN Bing-hong,LIN Liang-xun,XIAO Wei-jun.The Analysis of Cold Air Process with Sharp Temperature Drop in Guangdong in Late Autumn 2009[J].Journal of Guangdong Meteorology,2010,32(1):12-14. |
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| Authors: | CHEN Bing-hong LIN Liang-xun XIAO Wei-jun |
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| Institution: | Guangzhou Central Meteorological Observatory;Guangzhou 510080;China |
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| Abstract: | Guangdong suffered the strongest cold air process in the early November, 2009.This process had two characteristics of earlier outbreak and stronger intensity than normal.The result of circulation situation analysis shows that, the process followed the pattern of transverse trough downswing: the cold air accumulated in the areas of middle-high latitude due to the stable blocking high in Ural Mountain, then led by downswing of transverse trough, and finally blocked in the north of Nan-ling Mountain.The vertic... |
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| Keywords: | synoptic meteorology blocking high transverse trough cold air in late autumn Guangdong |
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