Séminaire ISTerre

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Reflections on the Geodynamo

jeudi 23 juin 2022 - 09h30

Peter Davidson - University of Cambridge
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Numerical simulations of the geodynamo are beginning to approach a dynamically relevant regime, not least because of the efforts in Grenoble. It seems timely, therefore, to compare the results of the various simulations with the conceptual cartoons of the geodynamo that have been developed over the decades. One such cartoon is presented here, based in part on helical wave dispersion within the Earth’s core. This cartoon is far from the standard model, but nevertheless seems reasonably consistent with the evidence of the numerical simulations. Of course, understanding the numerical simulations is not at all the same as understanding the geodynamo, but it is seems a good place to start.

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Equipe organisatrice : Géodynamo

Amphithéâtre Killian, Maison des Géosciences, 38400 Saint Martin d'Hères

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