| Differences between dynamics factors for interannual and decadal variations of rainfall over the Yangtze River valley during flood seasons |
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| 引用本文： | PING Fan LUO Zhexian JU Jianhua. Differences between dynamics factors for interannual and decadal variations of rainfall over the Yangtze River valley during flood seasons[J]. 科学通报(英文版), 2006, 51(8): 994-999. DOI: 10.1007/s11434-006-0994-7 |
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| 作者姓名： | PING Fan LUO Zhexian JU Jianhua |
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| 作者单位： | [1]Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China [2]Nanjing University of Information Science ＆ Technology, Nanjing 210044, China [3]China Meteorological Administration Training Center, Beijing 100081, China |
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| 基金项目： | The authors thank the anonymous reviewers for their constructive comments. This work was supported by the National Natural Science Foundation of China （Grant Nos. 40333028 and 40305010） and the National Key Basic Research Project （Grant No. 2004CB418302）. |
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| 摘 要： | The prediction of rainfall in the Yangtze River valley, especially, during flood seasons is the main means for scientists in China working on and the understanding of rainfall-associated processes is a crucial component of this effort. It can be derived f…
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| 关 键 词： | 长江流域 降雨量 动力学因素 比较分析 |
| 收稿时间： | 2005-07-22 |
| 修稿时间： | 2005-07-222005-09-29 |
Differences between dynamics factors for interannual and decadal variations of rainfall over the Yangtze River valley during flood seasons |
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| Fan Ping,Zhexian Luo,Jianhua Ju. Differences between dynamics factors for interannual and decadal variations of rainfall over the Yangtze River valley during flood seasons[J]. Chinese science bulletin, 2006, 51(8): 994-999. DOI: 10.1007/s11434-006-0994-7 |
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| Authors: | Fan Ping Zhexian Luo Jianhua Ju |
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| Affiliation: | (1) Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China;(2) Nanjing University of Information Science & Technology, Nanjing, 210044, China;(3) China Meteorological Administration Training Center, Beijing, 100081, China |
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| Abstract: | The rainfall over the Yangtze River val- ley during flood seasons (June to July) shows both interannual and decadal variations. The rainfall has been increasing since 1990, showing a decadal sig- nal. The variations of rainfall are influenced by the multi-scale interactions in the atmosphere-ocean coupled climate system. The rainfall, SST, and cir- culation are analyzed with the Chinese 160 station data, and other observational/reanalysis data, re- spectively. The separation between the interannual and decadal variations is carried out. The key areas affecting the Yangtze rainfall are the western Pacific warm pool on the interannual time scale and the EINO3 area on the decadal time scale, respectively. The circulation anomaly associated with the interan- nual variation occurs in the upper troposphere whereas that associated with the decadal variation appears in the lower troposphere. |
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| Keywords: | rainfall in Yangtze River valley annual and decadal variations factors. |
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