Core processes

Earth's eccentric magnetic field

Earth's magnetic field is characterized by a puzzling hemispheric asymmetry. Calculations of core dynamo processes suggest that lopsided growth of the planet's inner core may be part of the cause.

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Figure 1: East–west asymmetry in inner-core growth and magnetic field generation.

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Correspondence to Christopher C. Finlay.

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Finlay, C. Earth's eccentric magnetic field. Nature Geosci 5, 523–524 (2012) doi:10.1038/ngeo1516

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