Magnetic Storms and Substorms
Magnetic Storms and Substorms :
A series of terrestrial disturbances - namely, the precipitation of auroras and rapid changes in Earth's magnetic field - caused by high-speed blasts of the solar wind. Magnetic storms have measurable effects worldwide, such as radio communication blackouts and power grid failures. Magnetic storms are far less frequent than magnetic substorms (also called auroral substorms) which are initiated by processes in Earth's magnetotail and are restricted to the auroral ovals
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