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geomagnetic field: Quick Facts

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Facts

Also Known As geomagnetism • Earth’s magnetic field • terrestrial magnetism

Photos and Videos

magnetic field of a bar magnet
Map of the northern polar region showing the tracked movement of Earth's north magnetic pole from 1900 to a projected location in 2020. The pole's positions are marked by labeled dots moving from northern Canada across the Arctic Ocean toward Russia, with nearby landmasses including Alaska, Canada, and Russia indicated.
components of magnetic induction vector
field lines of Earth's magnetic field
particle motion in Earth's magnetic field
northern portion of magnetopause current
field-aligned current system
growth phase
magnetospheric substorm
substorm-wedge current
Understand Earth's geomagnetic field through the dynamo effect principle
Green haze over a curved horizon.
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Related Topics and References

Topics
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Key People

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Stanley Keith Runcorn
British geophysicist
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Johann von Lamont
German astronomer
Edward Sabine
Edward Sabine
British astronomer
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Balfour Stewart
British meteorologist and geophysicist
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Sydney Chapman
British mathematician and physicist
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Christopher Hansteen
Norwegian astronomer
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Sir Edward Bullard
British geophysicist