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Journal Articles Physical Review Letters Year : 2009

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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insu-03604908 , version 1 (11-03-2022)

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Attribution - CC BY 4.0

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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, 2009, 102, ⟨10.1103/PhysRevLett.102.144503⟩. ⟨insu-03604908⟩
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