| 2010年春节前后广东全省性低温阴雨过程成因 |
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| 引用本文： | 汪瑛,高亭亭,林良勋.2010年春节前后广东全省性低温阴雨过程成因[J].广东气象,2011,33(1):1-4. |
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| 作者姓名： | 汪瑛 高亭亭 林良勋 |
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| 作者单位： | 汪瑛,林良勋,WANG Ying,LIN Liang-xun(广东省气象台);高亭亭,GAO Ting-ting(广州市气象台,广东广州,510080) |
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| 摘 要： | 利用NCEP再分析资料和常规气象观测资料,对2010年春节前后广东低温阴雨天气的特点和成冈进行综合分析.结果表明:这一天气过程具有持续时间长、范围广、影响大、日平均气温异常偏低和降水频繁的特点;造成本次低温阴雨的主要环流形势为乌拉尔山阻塞高压和蒙古横槽均异常偏强和长时间稳定维持,东亚大槽偏弱、副热带高压偏强和中低纬环流...
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| 关 键 词： | 天气学 环流异常 冷暖气流 局地经向环流 广东 |
Causal Analysis of a Province-wide Low-temperature and Rainy Weather during Spring Festival in Guangdong |
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| WANG Ying,GAO Ting-ting,LIN Liang-xun.Causal Analysis of a Province-wide Low-temperature and Rainy Weather during Spring Festival in Guangdong[J].Journal of Guangdong Meteorology,2011,33(1):1-4. |
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| Authors: | WANG Ying GAO Ting-ting LIN Liang-xun |
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| Institution: | WANG Ying1,GAO Ting - ting2,LIN Liang - xun1 (1.Guangdong Meteorological Observatory;2.Guangzhou Meteorological Observatory,Guangzhou 510080,China) |
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| Abstract: | Based on NCEP reanalysis and conventional observational data,Analyses are performed on the features and causes of a province - wide low - temperature and rainy weather during 2010 Spring Festival in Guangdong.Results show that the weather has characteristics of long-lasting process,wide range of influence and great impact with abnormally low daily-average temperature and frequent precipitation;stable maintenance of abnormally stronger Ural blocking high and Mongolia transversal trough,anomalously weaker East - Asia trough and stronger subtropical high as well as the smooth atmospheric circulation over low-and-mid-latitude areas contribute to the favorable atmospheric circulation.Frequent invasions of shallow or low-level cold air mass and long - time lingering of wind shear over middle and northern Guangdong directly lead to such cold and rainy weather. |
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| Keywords: | synoptics circulation anomaly local meridional circulation Guangdong |
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