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Numerical geodynamo modelling - Deciphering the magnetic signal

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The geomagnetic signal contains information on the structure, dynamics and thermal evolution of the Earth. In this talk I will present some elements of the dynamo theory, which aims at understanding the origin of this signal, and the results of a few numerical modelling studies attempting to interpret this signal. More specifically, I will show how the search for similarity laws could allow us to bridge the parameter space gap existing between numerical models and natural objects, to produce useful models of the long-term evolution of the geodynamo.

This talk is part of the Bullard Laboratories Wednesday Colloquia series.

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