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The magnetic field of the earth is assumed compressed by an incident stream of ionized particles from the sun. A time-dependent magnetic and electric field is propagated as part of this interaction. A simplified model, a mirror dipole moving in space but of constant magnetic moment, is chosen to calculate the manner in which this electric field will compress and possibly accelerate ions already trapped in the earth's magnetosphere. This model would tend to dump radiation from the terrestrial belts into the atmosphere. For geometrical reasons the effects might be most pronounced in early morning and late evening.
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Louis R. Henrich (1963) studied this question.
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