Gingerbeardman
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Um, your comment makes no sense.
There are hundreds of terrestrial geomagnetic observation stations (including one near Hermanus), and dozens of orbiting satellite instruments. This is one of the most closely studied fields in the history of science.
https://www.nature.com/articles/d41586-019-00007-1Something strange is going on at the top of the world. Earth’s north magnetic pole has been skittering away from Canada and towards Siberia, driven by liquid iron sloshing within the planet’s core. The magnetic pole is moving so quickly that it has forced the world’s geomagnetism experts into a rare move.