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

Published online by Cambridge University Press:  05 July 2012

Bidya Binay Karak
Affiliation:
Department of Physics, Indian Institute of Science, Bangalore 560012, India email: bidya_karak@physics.iisc.ernet.in
Arnab Rai Choudhuri
Affiliation:
Department of Physics, Indian Institute of Science, Bangalore 560012, India email: bidya_karak@physics.iisc.ernet.in
Corresponding
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Abstract

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.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2012

References

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