| VARIATIONS OF ATMOSPHERIC OSCILLATION FACTORS AND 500 HPA CIRCULATION PATTERNS AND THEIR RELATIONS* |
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| 作者姓名： | YAN Huasheng WAN Yunxi CHENG Jiangang |
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| 作者单位： | Department of Atmospheric Sciences, Yunnan University, Kunming 650091;Yunnan Meteorological Bureau, Kunming 650034;Yunnan Meteorological Bureau, Kunming 650034 |
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| 基金项目： | * supported by the Yunnan Key Project (2003D0014Z);the National Natural Science Foundation of China (No.40065001) |
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| 摘 要： | Wavelet analysis,EOF and CCA are used to analyze the variations of atmospheric circulation factors,including the key atmospheric oscillations,W,C,E and subtropical high (SH),and their relationships.The results are shown that the variations of atmospheric circulation factors both in troposphere and lower atmosphere layer are different on different time scales.The most significant variation of atmospheric circulation factors is in the period less than 7 years.The correlation relations of atmospheric circulation factors are different on different time scales.Combination patterns of circulation factors have impact on the relationships of factors.There are lag correlations between combination patterns of circulation factors in former year and that of in next year.
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| 关 键 词： | atmospheric circulation interannual variation interdecadal variation correlation |
| 收稿时间： | 2003/9/18 0:00:00 |
| 修稿时间： | 9/6/2004 12:00:00 AM |
VARIATIONS OF ATMOSPHERIC OSCILLATION FACTORS AND 500 HPA CIRCULATION PATTERNS AND THEIR RELATIONS* |
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| YAN Huasheng,WAN Yunxi,CHENG Jiangang.VARIATIONS OF ATMOSPHERIC OSCILLATION FACTORS AND 500 HPA CIRCULATION PATTERNS AND THEIR RELATIONS*[J].Acta Meteorologica Sinica,2004,18(4):411-422. |
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| Authors: | YAN Huasheng WAN Yunxia and CHENG Jiangang |
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| Institution: | Department of Atmospheric Sciences, Yunnan University, Kunming 650091;Yunnan Meteorological Bureau, Kunming 650034;Yunnan Meteorological Bureau, Kunming 650034 |
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| Abstract: | Wavelet analysis,EOF and CCA are used to analyze the variations of atmospheric circulation factors,including the key atmospheric oscillations,W,C,E and subtropical high (SH),and their relationships.The results are shown that the variations of atmospheric circulation factors both in troposphere and lower atmosphere layer are different on different time scales.The most significant variation of atmospheric circulation factors is in the period less than 7 years.The correlation relations of atmospheric circulation factors are different on different time scales.Combination patterns of circulation factors have impact on the relationships of factors.There are lag correlations between combination patterns of circulation factors in former year and that of in next year. |
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| Keywords: | atmospheric circulation interannual variation interdecadal variation correlation |
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