SOHO CoRoT Kepler Picard SDO GONG

Towards a global solar magnetic index


Gonzalez Hernandez Irene


National Solar Observatory


Local helioseismology
Auteur(s) supplémentaire(s)K. Jain (1), K. Tobiska (2), F. Hill (1)
Institution(s) supplémentaire(s)(1) National Solar Observatory, Tucson, AZ, USA. (2) Space Environment Technologies, Pacific Palisades, CA, USA.


Seismic maps of the far side of the Sun have proven their capability to locate and track large active regions at the non-visible hemisphere. We present here the possibility of using the average signal from the far-side maps as a proxy to non-visible solar activity which can complement the current front-side solar activity indexes. A preliminary calibration of the Far Side Magnetic Index in terms of Ly-alpha is presented.
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