Abstract
Study of general statistical relationships of the 11-year sunspot cycles including: (a) ‘the length-amplitude rule’, or LAR (anticorrelation between the length of the current cycle from minimum to minimum and the amplitude of the next one), (b) ‘the rule of the 3rd year’, or R3 (correlation between the activity about 3 years before the first minimum of the cycle and its amplitude), (c) ‘the rule of the 7th year’, or R7 (correlation between the activity about 7 years before the maximum of the cycle and its amplitude), (d) the Waldmeier rule, or WR (anticorrelation between the length of the ascending phase of the cycle and its amplitude) was performed for the Wolf numbers. Analysis of the mutual conditionality of these rules showed that LAR, R3, R7 and WR are not independent effects. In particular, R3 and R7 hold in a series if WR and LAR hold in it.
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This work was supported by the Programme of Large Projects of the Ministry of Science and Higher Education of the Russian Federation (grant no. 075-15-2020-780).
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Ivanov, V.G., Nagovitsyn, Y.A. Links between Adjacent 11-Year Solar Cycles and Their Mutual Conditioning. Geomagn. Aeron. 63, 920–924 (2023). https://doi.org/10.1134/S0016793223070113
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DOI: https://doi.org/10.1134/S0016793223070113