| Short-Term Period Variation of Relative Sunspot Numbers |
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| 作者姓名： | Zhi-Qiang Yin Yan-Ben Han Li-Hua Ma Gui-Ming Le and Yong-Gang Han National Astronomical Observatories Chinese Academy of Sciences Beijing Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites China Meteorological Administration Beijing Graduate School of Chinese Academy of Sciences Beijing |
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| 作者单位： | Zhi-Qiang Yin1，3，Yan-Ben Han1，Li-Hua Ma1，Gui-Ming Le1，2 and Yong-Gang Han1 1 National Astronomical Observatories，Chinese Academy of Sciences，Beijing 100012; 2 Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites，China Meteorological Administration，Beijing 100081 3 Graduate School of Chinese Academy of Sciences，Beijing 100049 |
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| 摘 要： | We use wavelet transform to analyze the daily relative sunspot number series over solar cycles 10-23. The characteristics of some of the periods shorter than ～ 600-day are discussed. The results exhibit not only the variation of some short periods in the 14 solar cy-cles but also the characteristics and differences around solar peaks and valley years. The short periodic components with larger amplitude such as ～27,～150 and ～360-day are obvious in some solar cycles,all of them are time-variable,also their lengths and amplitudes are vari-able and intermittent in time. The variable characteristics of the periods are rather different in different solar cycles.
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| 关 键 词： | Sun: sunspots — short-term period — methods: data analysis — wavelet |
Short-Term Period Variation of Relative Sunspot Numbers |
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| Zhi-Qiang Yin,,Yan-Ben Han,Li-Hua Ma,Gui-Ming Le, and Yong-Gang Han National Astronomical Observatories,Chinese Academy of Sciences,Beijing , Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites,China Meteorological Administration,Beijing Graduate School of Chinese Academy of Sciences,Beijing .Short-Term Period Variation of Relative Sunspot Numbers[J].Chinese Journal of Astronomy and Astrophysics,2007,7(6):823-830. |
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| Authors: | Zhi-Qiang Yin Yan-Ben Han Li-Hua Ma Gui-Ming Le Yong-Gang Han |
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| Abstract: | |
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| Keywords: | Sun: sunspots-short-term period-methods: data analysis-wavelet |
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