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The Earth's magnetic field is created from electrodynamo activity in the liquid iron core of the Earth. A solar super storm would have basically no influence on
by njarboe 7y ago
The Earth's magnetic field is created from electrodynamo activity in the liquid iron core of the Earth. A solar super storm would have basically no influence on the millions of cubic kilometers of conducting and convecting iron. After the storm had passed, the magnetic field on the Earth's surface would be unchanged.
As to your last question, when the Earth's field flips direction (polarity reversal) or tries to flip but returns to the original polarity (magnetic excursion), the Earth's magnetic field drops to around 10% of the normal field strength and is no longer dipolar. This would cause many current satellites to be destroyed by the solar wind, but since drops in the field to this level takes hundreds or thousands of years, there is little to worry about.