Articles | Volume 21, issue 6
https://doi.org/10.5194/npg-21-1113-2014
https://doi.org/10.5194/npg-21-1113-2014
Research article
 | 
24 Nov 2014
Research article |  | 24 Nov 2014

Long-term changes in the north–south asymmetry of solar activity: a nonlinear dynamics characterization using visibility graphs

Y. Zou, R. V. Donner, N. Marwan, M. Small, and J. Kurths

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Cited articles

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Short summary
We use visibility graphs to characterize asymmetries in the dynamics of sunspot areas in both solar hemispheres. Our analysis provides deep insights into the potential and limitations of this method, revealing a complex interplay between effects due to statistical versus dynamical properties of the observed data. Temporal changes in the hemispheric predominance of the graph connectivity are found to lag those directly associated with the total hemispheric sunspot areas themselves.
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