| 亚洲500毫巴月平均环流指数(1939—1962年)的谱分析 |
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| 引用本文： | 李小泉,瞿栋根. 亚洲500毫巴月平均环流指数(1939—1962年)的谱分析[J]. 气象学报, 1964, 34(2): 127-134 |
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| 作者姓名： | 李小泉 瞿栋根 |
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| 作者单位： | 中央气象局气象科学研究所(李小泉)，中央气象局气象科学研究所(瞿栋根) |
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| 摘 要： | 本文计算了亚洲500毫巴月平均环流指数的方差谱。结果指出:亚洲经向及纬向环流指数谱的分布是有一定差异的,前者以5个月左右为周期的谐和振动占有显著的地位,而后者则以5个月以上的长周期振动所占的成分较大。
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| 收稿时间： | 1963-06-03 |
| 修稿时间： | 1964-02-01 |
SPECTRAL ANALYSIS OF MONTHLY 500 MB CIRCULATION INDEX OVER ASIA |
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| LEE SIAO-CHUAN and CHU TUNG-KAN. SPECTRAL ANALYSIS OF MONTHLY 500 MB CIRCULATION INDEX OVER ASIA[J]. Acta Meteorologica Sinica, 1964, 34(2): 127-134 |
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| Authors: | LEE SIAO-CHUAN and CHU TUNG-KAN |
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| Affiliation: | Central Institute of Meteorological Research, Central Weather Bureau;Central Institute of Meteorological Research, Central Weather Bureau |
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| Abstract: | In this paper, the power spectrum of the monthly 500 mb circulation index over Asia has been calculated. The spectrum difference between meridional and latitudinal index is found to be significant. In the spectrum of meridional index there is a significant maximum harmonic component with a period of about five months, and the total variance of the latitudinal index is contributed chiefly by the oscillations with the periods longer than five months. |
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