Inferring Quadrupolar Dynamo Mode from Sunspot Statistics
نویسندگان
چکیده
Observations of long-term north-south asymmetry in solar activity demand the equator-symmetric (quadrupolar) mode be present magnetic field line with dominant antisymmetric (dipolar) mode. This paper proposes treating sunspot area as a proxy for subsurface toroidal flux to infer quadrupolar dynamo from data. Toroidal pseudo-fluxes (PF) northern and southern hemispheres are defined signed plus or minus sign prescribed them accord Hale’s polarity rules. Statistical correlation analysis wavelet so-defined PFs reveal oscillations period about 16 yr amplitude 0.17 relative 22-yr dipolar
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ژورنال
عنوان ژورنال: Geomagnetism and Aeronomy
سال: 2022
ISSN: ['0016-7932', '1555-645X']
DOI: https://doi.org/10.1134/s0016793222070143