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A prediction of the solar cycle 25

Published online by Cambridge University Press:  27 November 2018

Jie Jiang
Affiliation:
School of Space and Environment, Beihang University, Beijing, China email: jiejiang@buaa.edu.cn
Jing-Xiu Wang
Affiliation:
Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
Qi-Rong Jiao
Affiliation:
School of Space and Environment, Beihang University, Beijing, China email: jiejiang@buaa.edu.cn
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Abstract

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Here we report our recent prediction of the solar cycle 25 based on a newly developed scheme, which is used to investigate the predictability of the solar cycle over one cycle. The scheme is a combination of the empirical properties of solar cycles and a surface flux transport model to get the possible axial dipole moment evolution at a few years before cycle minimum, by which to get the subsequent cycle strength based on the correlation between the axial dipole moment at cycle minimum and the subsequent cycle strength. We apply this scheme to predict the large-scale field evolution since 2018 onwards. The results show that the northern polar field will keep on increasing, while the southern polar field almost keeps flat by the end of cycle 24. This leads to the cycle 25 strength of 125 ± 32, which is about 10% stronger than cycle 24 according to the mean value.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2018 

References

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