Swarm helps pinpoint new magnetic north for smartphones

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According to (This article and its images were originally posted on ESA Top News February 8, 2019 at 10:54AM.)

Since it was first measured in 1831, we have known that the magnetic north is constantly on the move. However, its tendency to slowly roam has stepped up a pace recently – so much so that the World Magnetic Model has had to be updated urgently with the pole’s new location, vital for navigation on smartphones, for example. ESA’s magnetic field Swarm mission has been key for this update.

The World Magnetic Model, the basis for many navigation systems used by ships, Google maps and smartphones, relies on the accurate knowledge of Earth’s magnetic field. Since magnetic north never stands still, the model has to be revised periodically – but a surge in pace has meant that an update was needed ahead of schedule.

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This article and images were originally posted on [ESA Top News] February 8, 2019 at 10:54AM. Credit to the original author and ESA Top News | ESIST.T>G>S Recommended Articles Of The Day.

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