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Journal articles

Simple Mechanism for Reversals of Earth's Magnetic Field

Abstract : We show that a model, recently used to describe all the dynamical regimes of the magnetic field generated by the dynamo effect in the von Kármán sodium experiment, also provides a simple explanation of the reversals of Earth’s magnetic field, despite strong differences between both systems. The validity of the model relies on the smallness of the magnetic Prandtl number.
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https://hal-insu.archives-ouvertes.fr/insu-03604908
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Submitted on : Friday, March 11, 2022 - 3:41:53 PM
Last modification on : Thursday, March 17, 2022 - 10:08:43 AM

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10.1103PhysRevLett.102.144503....
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François Pétrélis, Stéphan Fauve, Emmanuel Dormy, Jean-Pierre Valet. Simple Mechanism for Reversals of Earth's Magnetic Field. Physical Review Letters, American Physical Society, 2009, 102, ⟨10.1103/PhysRevLett.102.144503⟩. ⟨insu-03604908⟩

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