Dynamics of near-polar magnetic field of the Sun at the maximum of solar cycle 24

1Pishkalo, MI, 1Leiko, UM
1Astronomical Observatory of Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
Kinemat. fiz. nebesnyh tel (Online) 2016, 32(2):37-47
Start Page: Solar Physics
Language: Russian

Data on the magnitude and the sign of the near-polar magnetic field of the Sun near maximum of solar cycle 24 were analyzed. Polar field observations from the Wilcox Solar Observatory and synoptic magnetic maps from the project SOLIS and the Helioseismic and Magnetic Imager (HMI) were used. We investigated dynamics of total magnetic field at near-polar zones of different size on latitude in north and south hemispheres. We found the epochs of the polar magnetic field reversals. There were triple polar magnetic field reversal in the northern hemisphere and single reversal in the southern hemisphere. The magnetic field reversal in northern he¬mi¬sphere was finished an year earlier than in the southern one. The results were also compared with data on polar magnetic field reversals in previous solar cycles.

Keywords: magnetic field, solar cycle, the Sun

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