期刊
ASTROPHYSICAL JOURNAL
卷 735, 期 1, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/735/1/31
关键词
methods: numerical; Sun: activity; Sun: dynamo
资金
- ERC [207430]
- CNRS/INSU
- European Research Council (ERC) [207430] Funding Source: European Research Council (ERC)
We have developed a variational data assimilation technique for the Sun using a toy alpha Omega dynamomodel. The purpose of this work is to apply modern data assimilation techniques to solar data using a physically based model. This work represents the first step toward a complete variational model of solar magnetism. We derive the adjoint alpha Omega dynamo code and use a minimization procedure to invert the spatial dependence of key physical ingredients of the model. We find that the variational technique is very powerful and leads to encouraging results that will be applied to a more realistic model of the solar dynamo.
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