Volume : V, Issue : VI, June - 2015

Relationship of Dst with Solar Flares and Coronal Mass Ejections during intense Geomagnetic Storms

R. S. Gupta

Abstract :

  From the study of 110 observed intense geomagnetic storms (dst ≤ – 110 nT) in relation with X–ray solar flares and coronal mass ejections (Halo & Partial halo) for the solar cycle 22,23 and rising phase of 24, it is concluded that intense geomagnetic storms are closely related to different classes of X–ray solar flares. It is also observed that majority of the intense geomagnetic storms (78 %) are associated with coronal mass ejections in which 75 % geomagnetic storms are associated with full Halo type CMEs and 25 % storms are associated with partial Halo type CMEs. A positive correlation has been found between magnitude of intense geomagnetic storms and speed of associated CMEs.

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Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

R.S. Gupta Relationship of Dst with Solar Flares and Coronal Mass Ejections during intense Geomagnetic Storms Indian Journal of Applied Research, Vol.5, Issue : 6 June 2015

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