Rapid Changes to Earth’s Magnetic Field has Prompted an Urgent Update to the World’s Magnetic Field Map
2019-01-13
Scientists have known since the early nineteenth century that the Earth’s magnetic north pole wanders slowly over time, a phenomenon that cartographers have kept track of to ensure the accuracy of navigational charts and any other fields that might be affected by this magnetic meandering. Over the centuries, this drift has been slow, but in recent years the movement of magnetic north has accelerated for reasons that aren’t completely understood, and this rapid movement has prompted researchers to update the map of the planet’s magnetic field a year ahead of schedule.
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