| 中国华南春季季风及其与大尺度环流特征的关系 |
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| 作者姓名： | Wang Huijun Xue Feng Zhou Guangqing |
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| 作者单位： | Wang Huijun，Xue Feng 1，and Zhou GuangqingLASG，Institute of Atmospheric Physics，Chinese Academy of Sciences，Beijing 100029 |
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| 基金项目： | Acknowledgments. This research was jointly supported by the Chinese Academy of Sciences Key Project under Grant No. KZCX2-203, the National Natural Science Foundation of China under Grant No. 40125014, and the Na-tional Key Program under Grant No. G19980 |
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| 摘 要： | 定义了中国华南春季季风，并用NCEP／NCAR再分析资料研究了春季风的气候特征以及春季风降水和大尺度环流在年际变化上的关系。结果表明，从降水和大气环流的变化来看，华南春季风在气候上发生于4月和5月；与华南春季风相联系的大气环流特征与夏季风和冬季风所对应的大气环流特征完全不同。华南春季风降水的年际变化主要与太平洋北部的异常环流相关联，而这种异常环流又与亚洲北部的西风急流和极地涡旋有联系；华南春季风降水的年际变化还与太平洋的海表温度异常有关；而亚洲热带大气环流的年际变化与华南春季风降水的变化关系不大。
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| 关 键 词： | 中国 春季 季风 季节变化 年际变化 降水 大气环流 |
| 收稿时间： | 19 September 2001 |
The spring monsoon in south china and its relationship to Large—Scale circulation features |
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| Wang Huijun,Xue Feng,Zhou Guangqing.The spring monsoon in south china and its relationship to Large—Scale circulation features[J].Advances in Atmospheric Sciences,2002,19(4):651-664. |
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| Authors: | Wang Huijun Xue Feng Zhou Guangqing |
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| Institution: | LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 |
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| Abstract: | In this paper, the authors define the spring monsoon in South China, and study the climatology and the interannual variation through analysis of the precipitation and the related atmospheric circulation, as revealed by the NCEP/NCAR reanalysis data. The results indicate that the spring monsoon season in South China occurs climatologically in April and May, which is supported by both seasonal and interannual variation of the atmospheric circulation and precipitation. The related atmospheric circulation is different from that during the East Asian summer or winter monsoon season. The interannual variation of the spring monsoon rainfall in South China relates primarily to the anomalous circulation over the North Pacific, which is linked with the westerly jet over North Asia and with the polar vortex. It is also connected with sea surface temperature anomalies in the Pacific. Changes in the Asian tropical atmospheric circulation has little influence on the spring monsoon in South China according to this research. |
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| Keywords: | spring monsoon seasonal variation interannual variation |
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