Other
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmsh23a0310l&link_type=abstract
American Geophysical Union, Fall Meeting 2005, abstract #SH23A-0310
Other
7513 Coronal Mass Ejections (2101), 7524 Magnetic Fields, 7954 Magnetic Storms (2788)
Scientific paper
We have analyzed 3 active regions to investigate the relationship between magnetic configurations of active regions and geomagnetic storms. Each active region was associated with multiple full halo coronal mass ejections (CMEs). This study demonstrates that, although full halo CMEs may originate from the same active region, they may or may not cause geomagnetic storms, depending on the magnetic configurations actually involved in the corresponding flare activities. This implies that (1) the flares, CMEs and geomagnetic storms are closely related magnetically, as already suggested by many others, and (2) the occurrence of solar active region-related geomagnetic storms may be determined by the magnetic fields which are involved in the corresponding solar flares. These associations suggest ways to improve geomagnetic storm prediction.
Liu Ya-Ying
Webb David F.
Zhao Xiaopeng
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