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Longitudinal structure of Earth's magnetic field controlled by lower mantle heat flow - Nature Geoscience

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Longitudinal structure of Earth's magnetic field controlled by lower mantle heat flow - Nature Geoscience

Thermal interactions between Earth's core and mantle provide the power that maintains the geomagnetic field. However, the effect of these interactions and, in particular, the thermochemical piles at the base of the mantle on magnetic field behaviour remains uncertain. Here we present numerical dynamo simulations with strong lateral variations in heat flow imposed at the core–mantle boundary to reproduce conditions within Earth and indicate how the mantle controls core dynamics.

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Longitudinal structure of Earth's magnetic field controlled by lower mantle heat flow - Nature Geoscience

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Longitudinal structure of Earth's magnetic field controlled by lower mantle heat flow - Nature Geoscience

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