| The spring soil moisture and the summer rainfall in eastern China |
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| 引用本文： | ZUO ZhiYan ZHANG RenHe. The spring soil moisture and the summer rainfall in eastern China[J]. 科学通报(英文版), 2007, 52(23): 3310-3312. DOI: 10.1007/s11434-007-0442-3 |
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| 作者姓名： | ZUO ZhiYan ZHANG RenHe |
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| 作者单位： | State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081, China |
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| 基金项目： | Supported by the National Key Program for Developing Basic Sciences (Grant No. 2004CB418302)，the National Natural Science Foundation of China (Grant No. 40225012) |
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| 摘 要： | The relation between the soil moisture in spring and the rainfall in summer in eastern China is investi- gated. Results show that the summer rainfall in eastern China is closely related to the spring soil moisture in the area from North China to the lower reaches of Yangtze River (NCYR). When spring soil moisture anomalies over NCYR are positive, the summer precipitation exhibits positive anomalies in Northeast China and the lower reaches of Yangtze River, and negative anomalies in southern China and North China. The higher soil moisture over NCYR cools land surface and reduces the land-sea tem- perature gradient, which weakens East Asian summer monsoon. The western Pacific Subtropical High (WPSH) is located to the south and shifts westward, resulting in more rainfall in the lower reaches of Yangtze River and less in southern China and North China.
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| 关 键 词： | 土壤湿度 夏季 中国 气候 |
| 收稿时间： | 2007-02-12 |
| 修稿时间： | 2007-06-07 |
The spring soil moisture and the summer rainfall in eastern China |
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| Zuo ZhiYan,Zhang RenHe. The spring soil moisture and the summer rainfall in eastern China[J]. Chinese science bulletin, 2007, 52(23): 3310-3312. DOI: 10.1007/s11434-007-0442-3 |
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| Authors: | Zuo ZhiYan Zhang RenHe |
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| Affiliation: | (1) State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, 100081, China |
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| Abstract: | The relation between the soil moisture in spring and the rainfall in summer in eastern China is investi- gated. Results show that the summer rainfall in eastern China is closely related to the spring soil moisture in the area from North China to the lower reaches of Yangtze River (NCYR). When spring soil moisture anomalies over NCYR are positive, the summer precipitation exhibits positive anomalies in Northeast China and the lower reaches of Yangtze River, and negative anomalies in southern China and North China. The higher soil moisture over NCYR cools land surface and reduces the land-sea tem- perature gradient, which weakens East Asian summer monsoon. The western Pacific Subtropical High (WPSH) is located to the south and shifts westward, resulting in more rainfall in the lower reaches of Yangtze River and less in southern China and North China. |
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| Keywords: | soil moisture precipitation East Asian summer monsoon |
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