| 上海大气折射指数振动及其与降水量和太阳黑子的关系 |
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| 引用本文： | 戴铁丕,王丽波,詹煜. 上海大气折射指数振动及其与降水量和太阳黑子的关系[J]. 南京气象学院学报, 1992, 0(4) |
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| 作者姓名： | 戴铁丕 王丽波 詹煜 |
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| 作者单位： | 南京气象学院(戴铁丕，王丽波)，南京气象学院(詹煜) |
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| 摘 要： | 用交叉谱分析方法研究近地面大气折射指数N单位平均值、月降水总量与太阳黑子相对数之间多频振动特征。结果发现:初夏,N单位与太阳黑子(或降水量)在准5年及准2年(或准7年、准4年及准3年)周期附近有十分密切的关系;初秋,N单位与太阳黑子在准5年、准2年周期附近密切相关;N单位与降水量除在短周期准3年、准2年附近有密切关系外,在长周期准35年附近亦有较密切的关系。
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| 关 键 词： | 交叉谱分析 大气折射指数 太阳黑子 降水 |
THE OSCILLATION OF THE ATMOSPHERIC REFRACTION INDEX IN THE AREA OF SHANGHAI AND ITS RELATION TO RAINFALL AND SUNSPOTS |
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| Dai Tiepi,Wang Libo,Zhan Yu Nanjing Institute of Meteorology. THE OSCILLATION OF THE ATMOSPHERIC REFRACTION INDEX IN THE AREA OF SHANGHAI AND ITS RELATION TO RAINFALL AND SUNSPOTS[J]. Journal of Nanjing Institute of Meteorology, 1992, 0(4) |
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| Authors: | Dai Tiepi Wang Libo Zhan Yu Nanjing Institute of Meteorology |
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| Affiliation: | Dai Tiepi;Wang Libo;Zhan Yu Nanjing Institute of Meteorology |
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| Abstract: | By using the cross spectrum analysis method,studies are made of the multi-frequency oncillation characteristics of the N unit average of the surface atmospheric re-fraction index related to the total monthly rainfall and the relative number of sunspots.It is found that in early summer there exists a very close relation between the N unit andsunspots (or rainfall) around the periods of quasi-five and quasi-two years (or quasi-seven, quasi-four and quasi-three years) and in early autumn a close relation be-tween the N unit and sunspots around the periods of quasi-five and quasi-two years.And the N unit is found to have a close relation with rainfall not only around the shortperiods of quasi-three and quasi-two years but also around the long period of quasi-35 years. |
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| Keywords: | cross spectrun analysis atmospheric refraction index sunspot rainfall |
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