Hierarchy of Cyclic Solar Activity Changes |
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Authors: | Mordvinov A.V. Kuklin G.V. |
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Affiliation: | (1) Institute of Solar-Terrestrial Physics, Russian Academy of Sciences, P.O. Box 4026, Irkutsk, 664033, Russia |
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Abstract: | A hierarchy of cyclic changes in solar activity is studied based on energetic and phase wavelet analyses. The phase wavelet spectrum of yearly number of sunspot groups shows fork-like bifurcations. Separate 11-yr cycles are combined in pairs and wave trains to make up complete magnetic cycles with complex synergies. The phase spectrum also indicates the existence of different regimes in solar activity cyclic changes. This variability seems to be controlled by changes in the solar dynamo regime. |
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