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Hemispheric irregularities of solar magnetic activity is a well-observedphenomenon -- the origin of which has been studied through numericalsimulations and data-analysis techniques. In this work we explore possiblecauses generating north-south asymmetry in the reversal timing and theamplitude of polar field during cycle minimum. Additionally, we investigate howhemispheric asymmetry is translated from cycle to cycle. We pursue a three-stepapproach. Firstly, we explore the asymmetry present in the observed polar fluxand sunspot area by analyzing observational data of the last 110 years.Secondly, we investigate contribution from different factors involved in theBabcock-Leighton mechanism to the evolution and generation of polar flux byperforming numerical simulations with a Surface Flux Transport model andsynthetic sunspot input profiles. Thirdly, propagation of hemispheric asymmetryin the following cycle is estimated by assimilating simulation-generatedsurface magnetic field maps at cycle minimum in a dynamo simulation. Finally,we assess our understanding of hemispheric asymmetry while reproducing observedasymmetry in the eight past solar cycles by performing additional observationaldata-driven simulations.

Is hemispheric asymmetry in the sunspot cycle solely governed by polar flux imbalance in the previous cycle?