Wavelet analysis of sunspot relative numbers
摘要
The time series of the monthly smoothed sun-spot numbers in 1749-2000 is analyzed with the wavelet. The result shows that besides the known time-variation of the period about 11 years, other main periods of the sunspot numbers, such as the periods of about 100 years and so on, vary with time. We suggest that the time-variation of the main periods is the manifestation of the complex variation of sunspot numbers. It is significant to make a thorough study of the character and mechanism of the time-variation of the periods for proving prediction of sunspot numbers, especially for understanding the variation process of sunspot numbers.
引用本文（GB/T 7714）
Han, Yanben, Yonggang. Wavelet analysis of sunspot relative numbers[J]. 中国科学通报：英文版, 2002.
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