Binod ADHIKARI

and 2 more

Invasion of solar wind particles inside earth’s magnetosphere induces the distortion of geomagnetic setting of earth. This geomagnetic disturbances be a consequence of energy discharge of solar plasma in different forms such as visible aurora in the polar region, joule heating, ring current energy; momentary fluctuation of earth’s magnetic field (SYM-H), intensification of magnetospheric current system; Field Aligned Current (FAC) and Polar Cap Potential (PCV) and many other phenomena. However, this event can cause some serious calamites, so having better understanding of it and able to be prepared in any severity of such situations is always in good accord. For this, we studied total of nine different intense geomagnetic storms from solar cycle 22, 23 and 24. Events included from solar cycle 22 and 24 were triggered by Stream Interaction Region (SIR) as well as SIR associated with complex structures which were a resultant of interactions between SIRs and Interplanetary Coronal Mass Ejections (ICMEs) respectively. The rest of the selected events which are all from solar cycle 23 were also the responses of solar structures like SIR and ICME along with sheath and magnetic cloud. To understand the impact of the solar wind particles on near earth space, magnetospheric and interplanetary parameters such as IMF-Bz, SYM-H, PCV and FAC are graphed along with total solar input energy and other energy sinks like auroral precipitation, joule heating, and ring current energy. To substantiate result, cross‐correlation technique is used along with pie chart and bar graphing which has helped in statistical investigation.