Solar Variability Induced in a Dynamo Code by Realistic Meridional Circulation Variations |
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| Authors: | I Lopes D Passos |
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| Institution: | (1) CENTRA, Departamento de Física, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;(2) Departamento de Física, Universidade de évora, Colégio António Luis Verney, 7002-554 évora, Portugal |
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| Abstract: | In this work we use an already-published method to infer a variation profile for the solar meridional circulation over the
last 250 years. We feed this variation profile into a numerical dynamo code, and we reconstruct a sunspot time series that
acts as a proxy for solar cycle activity. We perform three simulations with slightly different parameters, and the results
are compared with the observational data. The medium and large correlation coefficients between reconstructed and observational
time series seem to indicate that variations in meridional circulation play an important role in the modulation of solar activity. |
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| Keywords: | Solar cycle: models Sunspots: magnetic fields Sunspots: statistics |
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