Gnevyshev-Ohl rule
The Gnevyshev-Ohl rule is an empirical rule according to which the sum of Wolf’s sunspot numbers over an odd cycle exceeds that of the preceding even cycle.[1][2] The rule breaks down under certain conditions.[3]
References
- ↑ Zolotova, N. V.; Ponyavin, D. I. (2015-02-13). "The Gnevyshev-Ohl Rule and Its Violations". Geomagnetism and Aeronomy. Pleiades Publishing. 55 (7): 902–906. doi:10.1134/S0016793215070300. ISSN 0016-7932 – via SpringerLink.
- ↑ Gnevishev, M. N.; Ohl, A. I. (1948). "On the 22-year cycle of solar activity". Astronomical Journal (in Russian). 25 (1): 18–20.
- ↑ Komitov, Boris; Bonev, Boncho (2001-05-30). "Amplitude Variations of the 11 Year Cycle and the Current Solar Maximum 23". The Astrophysical Journal Letters. IOP Publishing. 554 (1): 119–122 – via Institute of Physics.
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