| 2008年初珠三角地区罕见持续低温阴雨天气成因初探 |
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| 引用本文： | 何伟芬,唐洁,彭端,何华庆.2008年初珠三角地区罕见持续低温阴雨天气成因初探[J].安徽农业科学,2010,38(17):9064-9066,9154. |
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| 作者姓名： | 何伟芬 唐洁 彭端 何华庆 |
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| 作者单位： | 1. 南京信息工程大学,江苏南京,210044;广东省肇庆市气象局,广东肇庆,526040
2. 广东省肇庆市气象局,广东肇庆,526040 |
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| 摘 要： | 利用常规气象观测资料、NCEP/NCAR的再分析资料及数值预报产品资料等,初步分析2008年1月13日~2月2日珠三角地区罕见持续低温阴雨天气的成因。结果表明,此次罕见天气过程是发生在严重的＂拉尼娜＂事件背景下,欧亚地区异常型大气环流稳定维持,冷空气堆积明显,冷高压中心异常偏强,西太平洋副高偏北偏强,中低纬南支槽活跃,850 hPa锋区强盛,华南中低层逆温明显。数值预报产品对珠三角地区低温阴雨结束期的环流形势预报起到了很好的指示作用。
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| 关 键 词： | 天气学 大气环流异常 冷暖气流 罕见持续低温阴雨 珠三角地区 |
Causality Analysis of the Sustainable Low Temperature and Rain Weather in the Pearl River Delta Area at the Beginning of 2008 |
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| HE Wei-fen et al.Causality Analysis of the Sustainable Low Temperature and Rain Weather in the Pearl River Delta Area at the Beginning of 2008[J].Journal of Anhui Agricultural Sciences,2010,38(17):9064-9066,9154. |
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| Authors: | HE Wei-fen |
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| Institution: | HE Wei-fen et al(Nanjing Information Engineering University,Nanjing,Jiangsu 210044) |
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| Abstract: | The possible causes of the sustainable low temperature and rain in Pearl River Delta Area from Jan.13th to Feb.2nd in 2008 were studied by using observational data and NCEP/NCAR daily reanalysis data.The results showed that this case is associated with Lanina event.The abnormal atmospheric circulation in the Eurasian region remain stable,significant accumulation of cold air,the strong side of the cold high pressure center exception,the West Pacific subtropical high northward on the strong side,the low-latit... |
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| Keywords: | Synoptic meteorology Anomalous atmospheric circulation Cold and warm stream Sustainable low temperature and rain Pearl River Delta Area |
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