Large-scale transport of magnetic flux on the Sun and flare productivity
Abstract
Horizontal transport of the large-scale magnetic field during the last three solar activity cycles was studied. The specific displacement of the magnetic regions was followed and the horizontal velocity field was inferred. A non-homogeneous transport of the magnetic flux over the solar surface, superposed on the global differential rotation and meridional circulation was discovered. Large-scale velocities with the axially symmetric component and also with the large-scale non-axially symmetric component of the horizontal velocity field varies during the 11-year activity cycle. A spatial distribution of the available magnetic energy was computed and the relationship with the flare productivity was found.
- Publication:
-
Solspa 2001, Proceedings of the Second Solar Cycle and Space Weather Euroconference
- Pub Date:
- March 2002
- Bibcode:
- 2002ESASP.477...73A
- Keywords:
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- Solar Magnetic Fields;
- Solar Flares