| Characteristics and Variations of the East Asian Monsoon System and Its Impacts on Climate Disasters in China |
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| 作者姓名： | 黄荣辉 陈际龙 黄刚 |
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| 作者单位： | Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080 |
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| 基金项目： | This paper was supported by the ＂National Key Programme for Developing Basic Sciences＂ under Grant No. G2006CB403600, and Knowledge Innovation for the 3rd Period, Chinese Academy of Sciences under Grant No. KZCX2-YW-220, and the National Natural Science Foundation of China under Grant Nos. 40730952, 40575026, 40775051 respectively. |
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| 摘 要： | Recent advances in studies of the structural characteristics and temporal-spatial variations of the East Asian monsoon （EAM） system and the impact of this system on severe climate disasters in China are reviewed. Previous studies have improved our understanding of the basic characteristics of horizontal and vertical structures and the annual cycle of the EAM system and the water vapor transports in the EAM region. Many studies have shown that the EAM system is a relatively independent subsystem of the Asian- Australian monsoon system, and that there exists an obvious quasi-biennial oscillation with a meridional tripole pattern distribution in the interannual variations of the EAM system. Further analyses of the basic physical processes, both internal and external, that influence the variability of the EAM system indicate that the EAM system may be viewed as an atmosphere-ocean-land coupled system, referred to the EAM climate system in this paper. Further, the paper discusses how the interaction and relationships among various components of this system can be described through the East Asia Pacific （EAP） teleconnection pattern and the teleconnection pattern of meridional upper-tropospheric wind anomalies along the westerly jet over East Asia. Such reasoning suggests that the occurrence of severe floods in the Yangtze and Hualhe River valleys and prolonged droughts in North China are linked, respectively~ to the background interannual and interdecadal variability of the EAM climate system. Besides, outstanding scientific issues related to the EAM system and its impact on climate disasters in China are also discussed.
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| 关 键 词： | 东亚季风系统 气候灾害 干旱 洪水 中国 |
| 收稿时间： | 30 January 2007 |
| 修稿时间： | 2007-01-302007-08-13 |
Characteristics and variations of the East Asian monsoon system and its impacts on climate disasters in China |
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| Huang?Ronghui,Chen?Jilong,Huang?Gang.Characteristics and Variations of the East Asian Monsoon System and Its Impacts on Climate Disasters in China[J].Advances in Atmospheric Sciences,2007,24(6):993-1023. |
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| Authors: | Huang Ronghui Chen Jilong Huang Gang |
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| Institution: | Center for Monsoon System Research, Institute of Atmospheric Physics,
Chinese Academy of Sciences, Beijing 100080,Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080,Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080 |
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| Abstract: | Recent advances in studies of the structural characteristics and temporal-spatial variations of the East Asian monsoon (EAM) system and the impact of this system on severe climate disasters in China are reviewed.Previous studies have improved our understanding of the basic characteristics of horizontal and vertical structures and the annual cycle of the EAM system and the water vapor transports in the EAM region.Many studies have shown that the EAM system is a relatively independent subsystem of the AsianAnstralian monsoon system,and that there exists an obvious quasi-biennial oscillation with a meridional tripole pattern distribution in the interannual variations of the EAM system.Further analyses of the basic phvsical processes,both internal and external,that influence the variability of the EAM system indicate that the EAM systern may be viewed as an atmosphere-ocean-land coupled system,referred to the EAM climate system in this paper.Further,the paper discusses how the interaction and relationships among various components of this system can be described through the East Asia Pacific (EAP) teleconnection pattern and the teleconnection pattern of meridional upper-tropospheric wind anomalies along the westerly jet over East Asia.Such reasoning suggests that the occurrence of severe floods in the Yangtze and Huaihe River valleys and prolonged droughts in North China are linked,respectively,to the background interannual and interdecadal variability of the EAM climate system.Besides,outstanding scientific issues related to the EAM system and its impact on climate disasters in China are also discussed. |
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| Keywords: | East Asian monsoon system climate disaster persistent drought severe flood EAP pattern teleconnection |
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