| 东亚季风近几十年来的主要变化特征 |
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| 引用本文： | 王会军,范可.东亚季风近几十年来的主要变化特征[J].大气科学,2013,37(2):313-318. |
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| 作者姓名： | 王会军 范可 |
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| 作者单位： | 1. 中国科学院大气物理研究所竺可桢—南森国际研究中心,北京100029;中国科学院气候变化研究中心,北京100029
2. 中国科学院大气物理研究所竺可桢—南森国际研究中心,北京100029;中国科学院气候变化研究中心,北京100029;中国科学院东亚区域气候—环境重点实验室,北京100029 |
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| 基金项目： | 国家自然科学基金项目41130103 |
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| 摘 要： | 本文简要综述了关于东亚夏季风和冬季风近几十年来的主要变化特征的若干研究结果,特别是关于其年代际变化方面.夏季风及夏季气候的主要变化特征有:1970年代末之后东亚夏季风的年代际时间尺度的减弱以及相应的我国夏季降水江淮流域增多而华北减少、1992年之后我国华南夏季降水增多、1999年之后我国长江中下游夏季降水减少而淮河流域夏季降水增多、东亚夏季风和ENSO之间的年际变化相关性存在不稳定性.而关于东亚冬季风与冬季气候的主要变化特征有:1980年代中期之后东亚冬季风及其年际变率减弱、1970年代中期之后冬季风和ENSO的年际变化相关性较弱、近年来的北极秋季海冰减少对北半球冬季积雪增多有显著贡献、东北冬季积雪在1980年代中期以后增多.与上述变化有关的极端气候和物候都发生了多方面的变化.
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| 关 键 词： | 东亚夏季风 东亚冬季风 年代际变化 ENSO 海冰 |
| 收稿时间： | 2012/8/20 0:00:00 |
| 修稿时间： | 2012/9/15 0:00:00 |
Recent Changes in the East Asian Monsoon |
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| WANG Huijun and FAN Ke.Recent Changes in the East Asian Monsoon[J].Chinese Journal of Atmospheric Sciences,2013,37(2):313-318. |
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| Authors: | WANG Huijun and FAN Ke |
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| Institution: | Nansen-Zhu International Research Center, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;Climate Change Research Center, Chinese Academy of Sciences, Beijing 100029;Nansen-Zhu International Research Center, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;Climate Change Research Center, Chinese Academy of Sciences, Beijing 100029;Key Laboratory of Regional Climate-Environment for East Asia, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 |
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| Abstract: | Studies on the recent changes of the summer and winter monsoons, with priority on decadal-interdecadal scales, are reviewed briefly in this paper. The major changes in the East Asian summer monsoon (EASM) include a weakening of the EASM and a shift in precipitation patterns at the end of 1970s; an increase in South China precipitation after 1992-1993; a decrease in precipitation in the middle-and-lower reaches of the Yangtze River and an increase in precipitation in the Huaihe River valley after 1999; and instability in the relationship between the EASM and El Niño-Southern Oscillation (ENSO). The changes in the East Asian winter monsoon (EAWM) include a weakening of the EAWM and its interannual variability after the mid-1980s, an increase in winter snowfall in Northeast China after the mid-1980s, and a weakening of the EAWM-ENSO relationship after the mid-1970s. In addition, the impact of the autumn Arctic sea ice decline on the winter snow cover in the Northern Hemisphere is discussed. These changes in EASM and EAWM indicate that the extreme climate and phenology have been significantly altered. |
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| Keywords: | East Asian summer monsoon East Asian winter monsoon Interdecadal variability ENSO Sea ice |
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