Abstract
Photospheric magnetic fields are studied in this work on the basis of synoptic maps from the Kitt Peak Observatory (1976–2003) and WSO (1976–2012). The imbalance between positive and negative fluxes is considered for strong magnetic fields in the sunspot zone. The imbalance sign coincides with the polar field sign in the Northern hemisphere; it depends on both the phase of the 11-year cycle and the solar cycle parity. These features of variation in the magnetic field can be explained by a strong quadrupole moment of the photospheric magnetic field, which is also seen in a change of the polarity of the interplanetary magnetic field.
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Vernova, E.S., Tyasto, M.I. & Baranov, D.G. Magnetic fields of photosphere and interplanetary space: Imbalance between positive and negative polarities. Geomagn. Aeron. 54, 920–925 (2014). https://doi.org/10.1134/S0016793214070160
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DOI: https://doi.org/10.1134/S0016793214070160