An Association of solar wind Energy Dynamics with polar Cap Potential
and Field Aligned Current during Major Intense Geomagnetic Storms of
Solar Cycles 22, 23 and 24
Abstract
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.