Substorm Behavior of Plasma Sheet Particles
The earth’s magnetotail plays an important role in the production of magnetospheric substorms. It evidently serves as a storehouse of magnetic energy (and also, perhaps, of particle kinetic energy) which is replenished by action of the solar wind. Accumulated energy is periodically released into the auroral regions of the earth in the form of kinetic energy of precipitating particles and joule heating of the upper atmosphere by intense electric currents. The release of most of the stored energy is often triggered quite suddenly by some as yet unknown process interior to the magnetosphere, resulting in the ‘breakup’ and the expansive phase of the substorm.
KeywordsInterplanetary Magnetic Field Magnetic Field Line Plasma Sheet Auroral Zone Substorm Onset
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