Abstract:
We have studied X and M-Class X -Ray solar flares related intense geomagnetic storms observed during the period of 2000-2006 with halo and partial halo coronal mass ejections, and disturbances in solar wind plasma parameters. We have found that 82.45% X and M Class X-Ray solar flare related intense geomagnetic storms are associated with halo and partial halo coronal mass ejections. The association rate of halo and partial halo coronal mass ejections are found 78.72 % and 21.27 % respectively. From the study of X and M-Class X-Ray solar flare related intense geomagnetic storms with disturbances in solar wind plasma parameters ,we have determined positive co-relation with co-relation co-efficient 0.30 between magnitude of X and M-Class X-Ray solar flare related intense geomagnetic storms and peak value of associated jump in solar wind plasma temperature, 0.35 between magnitude of X and M-Class X-Ray solar flare related intense geomagnetic storms and magnitude of associated jump in solar wind plasma temperature 0.43 between magnitude of X and M-Class X-Ray solar flare related intense geomagnetic storms and peak value of associated jump in solar wind plasma velocity, 0.30 between magnitude of X and M-Class X-Ray solar flare related intense geomagnetic storms and peak value of associated jump in solar wind plasma pressure.
Keywords: Disturbances in Solar Wind Plasma Parameters, Coronal Mass Ejections, X-Ray Solar Flares, Intense Geomagnetic Storms.
Dr. Preetam Singh Gour, Dr. Shiva Soni, Dr. Arun Kumar