Sunspot group tilt angles and the strength of the solar cycle

@inproceedings{DasiEspuig2010SunspotGT,
  title={Sunspot group tilt angles and the strength of the solar cycle},
  author={Maria Dasi-Espuig and Sami K. Solanki and Natalia Andreevna Krivova and Robert H. Cameron and T Luis Alfredo Pe{\~n}uela},
  year={2010}
}
It is known that the tilt angles of active regions increase with their latitude (Joy's law). It has never been checked before, however, whether the average tilt angles change from one cycle to another. Flux transport models show the importance of tilt angles for the reversal and build up of magnetic flux at the poles which is, in turn, correlated with the strength of the next cycle. Here we analyse time series of tilt angle measurements and look for a possible relationship of the tilt angles… CONTINUE READING

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Joy’s Law, Anti-Hale classifications, and the evolution of emerging sunspot regions

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