Abstract
A non-stationary transient oscillating process of the solar magnetic field polarity reversal of ≈3 years in duration has been established: a U-shaped dynamics in the wavelet representation of variations in the scintillation index of galactic cosmic rays (GCRs) (≈7, 13–14, and ≈7 solar rotations). The transient oscillating process of the field reversal is concluded with a sharp and deep decrease in the GCR intensity at the branch of 11-year cycle decline (1972, 1982, 1991, and 2003). The duration of the transient process inversely depends on the 11-year cycle amplitude. Retardation of relaxation oscillations during “weak” cycles (20 and 23) explains “anomalous” solar activity in 1972 and 2003. A decrease in the amplitude of the current cycle 23 is accompanied by an increase in its duration, which can mean that the 11-year cyclicity has become anomalous. The constancy of the energy released in a single cycle indicates that the 11-year cycle is the mechanism of energy regulation preventing the Sun from “overheating” at the critical temperature.
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Original Russian Text © V.I. Kozlov, V.V. Markov, 2007, published in Geomagnetizm i Aeronomiya, 2007, Vol. 47, No. 1, pp. 47–55.
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Kozlov, V.I., Markov, V.V. Wavelet image of the fine structure of the 11-year cycle based on studying cosmic ray fluctuations during cycles 20–23. Geomagn. Aeron. 47, 43–51 (2007). https://doi.org/10.1134/S0016793207010070
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DOI: https://doi.org/10.1134/S0016793207010070