Sign reversal of the high-latitude solar magnetic field

Details Sign reversal of the high-latitude solar magnetic field Sign reversal of the high-latitude solar magnetic field

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992sval...18..108b&link_type=abstract

Soviet Astronomy Letters, Vol. 18, p. 108; Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 18, no. 3, March 1992, p. 26

Statistics

Computation

6

Magnetic Field Configurations, Polarity, Solar Magnetic Field, Computational Astrophysics, Solar Cycles

Scientific paper

It is assumed that the existence of threefold magnetic field reversals in one of the solar hemispheres is the result of two types of variations in the background magnetic field. The first type is the Hale 22-yr cycle; the second is a quasi-biannual cycle. In the first approximation, the background magnetic field evolution can be described by a diffusion equation corrected for meridional circulation and with a periodically changing source. Numerical modeling shows that, in the case of multiplicity of the frequencies and under a certain relationship between the amplitudes of these periods, zones of polarity reversals may form during maxima of even 11-yr (Zurich numbering) cycles.

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