| A STUDY ON RELATION BETWEEN EAST ASIAN WINTER MONSOON AND CLIMATE CHANGE DURING RAINING SEASON IN CHINA |
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| 作者姓名： | 晏红明 段玮 肖子牛 |
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| 作者单位： | Meteorological Sciences Institute of Yunnan Province，Kunming 650034 China，Meteorological Sciences Institute of Yunnan Province，Kunming 650034 China，Meteorological Sciences Institute of Yunnan Province，Kunming 650034 China |
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| 基金项目： | East Asia winter monsoon and Yunnan summertime drought and floods and their interdecadal anomalies a project of the Yunnan Province Science Foundation，a Yunnan Province Foundation project (97D022G) |
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| 摘 要： | 1 INTRODUCTION The Asian monsoon and its anomalies play an important role in the global general circulation and climatic change. As an essential component of the monsoon system, the East Asian winter monsoon is not only the most vigorous across the globe …
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| 关 键 词： | 气候类型 季风型 降雨 关联分析 合成分析 中国 |
A STUDY ON RELATION BETWEEN EAST ASIAN WINTER MONSOON AND CLIMATE CHANGE DURING RAINING SEASON IN CHINA |
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| YAN Hong-ming,DUAN Wei and XIAO Zi-niu.A STUDY ON RELATION BETWEEN EAST ASIAN WINTER MONSOON AND CLIMATE CHANGE DURING RAINING SEASON IN CHINA[J].Journal of Tropical Meteorology,2004,10(1):23-33. |
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| Authors: | YAN Hong-ming DUAN Wei and XIAO Zi-niu |
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| Institution: | Meteorological Sciences Institute of Yunnan Province |
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| Abstract: | Based on the data of NCEP, OLR and rainfall of China, we studied the influences of the East Asian winter monsoon activities on the precipitation during the raining season over China by correlation analysis and composite analysis. The result shows that annual and interdecadal change of East Asian winter monsoon is distinct. It is strong from 1950s to the middle of 1980s but weak after the middle of 1980s. The effect of abnormal winter monsoon on the precipitation during raining season is significant over the middle and lower reaches of the Changjiang River basin. It is revealed that the precipitation will increase when preceding winter monsoon is weak but decrease when preceding winter monsoon is strong. In this paper, some appropriate reasons are given to explain the abnormal rainfall by analyzing the distribution of SSTA and the variation of summer circulation. It is pointed out definitely that the variation of SSTA and summer circulation is a primary cause for abnormal rainfall over the middle and lower reaches of the Changjiang River. |
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| Keywords: | East Asian winter monsoon East Asian subtropical summer monsoon summer precipitation over the middle and lower reaches area of the Changjiang River |
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