Vol 4, No 6

Wavelet Analysis of the Schwabe Cycle Properties in Solar Activity

Gui-Ming Le


Abstract Properties of the Schwabe cycles in solar activity are investigated by using wavelet transform. We study the main range of the Schwabe cycles of the solar activity recorded by relative sunspot numbers, and find that the main range of the Schwabe cycles is the periodic span from 8-year to 14-year. We make the comparison of 11-year's phase between relative sunspot numbers and sunspot group numbers. The results show that there is some difference between two phases for the interval from 1710 to 1810, while the two phases are almost the same for the interval from 1810 to 1990.


Keywords Sun: sunspot -- Sun: activity -- method: data analysis

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