N-S Asymmetry of Solar Activity and Quasi-biennial Oscillations

O.B. Badalyan2, V.N. Obridko2, J. Rybák1, J.Sykora1

1Astronomical Institute of the Slovak Academy of Sciences, SK-05960 Tatranská Lomnica, Slovakia
2Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation, 142092 Troitsk, Moscow Region, Russia

Abstract:

Space-time distribution and mutual correlation of the N--S asymmetry in various indices of solar activity are considered. It is shown that changes in the N--S asymmetry variation both at short and long time scales are consonant in all activity indices under consideration. Quasi-biennial variations of the asymmetry index and their space-time distribution are revealed and examined. The conclusion can be drawn that the N-S asymmetry is a specific independent and very promising tool for analysis of the solar activity variations.


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