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Table 1 Decay processes for ring current (Ebihara and Ejiri 2003)

From: Simulation study of near-Earth space disturbances: 1. magnetic storms

Process Region or cause Fate
Charge exchange Geocorona Energetic neutral atom (Dessler and Parker 1959)
Coulomb collision Plasmasphere Precipitation into ionosphere (Wentworth et al. 1959; Fok et al. 1991; Jordanova et al. 1996)
Wave-particle interaction Resonant interaction with ion cyclotron wave Precipitation into ionosphere (Cornwall et al. 1970)
Adiabatic loss cone loss Inward transport of ions Precipitation into ionosphere (Jordanova et al. 1996)
Field line curvature Curved magnetic field line Precipitation into ionosphere (Sergeev et al. 1983; Ebihara et al. 2011)
Sudden decrease in plasma sheet density Entire ring current Replacement of ring current ions with tenuous ones (Ebihara and Ejiri 1998)