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Appearance and quantitative characteristics of 11-year solar cycles

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Abstract

An approximation of the 11-year solar cycles by a function with five fitting parameters is proposed. Three parameters are determined individually for each cycle. Their values correspond to the date of the cycle onset, its amplitude and duration of the rise in activity. The combination of two other parameters is unique for all cycles and it is chosen in advance. By varying the values of these dimensionless parameters, a good approximation can be achieved. It can be used in estimating quantitative characteristics of the cycle.

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Correspondence to E. M. Roshchina.

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Original Russian Text © E.M. Roshchina, A.P. Sarychev, 2014, published in Astronomicheskii Vestnik, 2014, Vol. 48, No. 6, pp. 495–500.

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Roshchina, E.M., Sarychev, A.P. Appearance and quantitative characteristics of 11-year solar cycles. Sol Syst Res 48, 460–465 (2014). https://doi.org/10.1134/S0038094614060082

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  • DOI: https://doi.org/10.1134/S0038094614060082

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