Is meridional circulation important in modelling irregularities of the solar cycle?

Details Is meridional circulation important in modelling irregularities of the solar cycle? Is meridional circulation important in modelling irregularities of the solar cycle?

2011-11-09

arxiv.org/abs/1111.2144v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

4 pages, 4 figures. Proceedings of IAU Symposium 286: Comparative Magnetic Minima: Characterizing quiet times in the Sun and s

Scientific paper

We explore the importance of meridional circulation variations in modelling the irregularities of the solar cycle by using the flux transport dynamo model. We show that a fluctuating meridional circulation can reproduce some features of the solar cycle like the Waldmeier effect and the grand minimum. However, we get all these results only if the value of the turbulent diffusivity in the convection zone is reasonably high.

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