Regular and Random Components of Sunspot Activity During Active Sun and Great Minima: Model Simulation

Details Regular and Random Components of Sunspot Activity During Active Sun and Great Minima: Model Simulation Regular and Random Components of Sunspot Activity During Active Sun and Great Minima: Model Simulation

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sh41a22u&link_type=abstract

American Geophysical Union, Spring Meeting 2001, abstract #SH41A-22

Physics

1650 Solar Variability, 7524 Magnetic Fields, 7536 Solar Activity Cycle (2162)

Scientific paper

We model sunspot production during the two different modes of sunspot activity (the normal activity level and great minima), using the idea of a threshold-like mechanism [Ruzmaikin, 1997, 2000]. The model includes a dynamo field, a constant relic field of the Sun and a random field. This model describes the main features of sunspot activity both during normal activity times (dominant 11-year cycle and weak 22-year cycle) and during the Maunder minimum (sparse sunspot occurrence with 22-year cycle) with the same model parameters, only varying the dynamo amplitude. The relic field must be about 3-10 % of the dynamo field in normal activity times.

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