Global Solar Dynamo Models: Simulations and Predictions

Journal of astrophysics and astronomy

Mausumi Dikpati1¹  Peter A. Gilman1¹ 

[1] High Altitude Observatory, NCAR, 3080 Center Green, Boulder CO 80301, USA.$$

关键词: Sun;    magnetic fields: solar cycle;    dynamo;    prediction.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

Flux-transport type solar dynamos have achieved considerable success in correctly simulating many solar cycle features, and are now being used for prediction of solar cycle timing and amplitude.We first define flux-transport dynamos and demonstrate how they work. The essential added ingredient in this class of models is meridional circulation, which governs the dynamo period and also plays a crucial role in determining the Sun’s memory about its past magnetic fields.We show that flux-transport dynamo models can explain many key features of solar cycles. Then we show that a predictive tool can be built from this class of dynamo that can be used to predict mean solar cycle features by assimilating magnetic field data from previous cycles.

【 授权许可】

Unknown