H. Zhang
We would like to introduce on the study of observational vector magnetic fields of solar active regions, which relates to the basic configuration of magnetic fields, the storage of magnetic fields for the eruption of solar flare-CMEs and also solar active cycles. The magnetic helicity is an important parameter to reflect the topology of magnetic field in the solar atmosphere and the generation of solar dynamo process.
In this talk, we would like to introduce some results on the study of magnetic fields and helicity of solar active regions recently. These concern to the developments of magnetic field and also helicity in solar active regions and the relationship with solar cycles, such as the hemispheric rule of helicity and also the spectrum of magnetic energy and helicity etc.
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