March 22, 2012

Geomagnetically Induced Currents From Reconnection

This animations shows a coronal mass ejections collide with Earth’s magnetic fields and the fields change shape and strength. Reconnection in the magnetotail causes currents to follow the field lines back to the Earth’s polar regions, sparking aurora. Changing magnetic fields,can cause electrical currents, known as geomagnetically induced currents to form underground and in Earth’s electrical systems.  credit:  NASA

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