Using their own simulations, a team of researchers successfully reproduced salient features of Earth’s paleomagnetic field. Credit: Norman Kuring, NASA/GSFC/Suomi NPP and NASA’s Earth Observatory

Using their own simulations, a team of researchers successfully reproduced salient features of Earth’s paleomagnetic field. Credit: Norman Kuring, NASA/GSFC/Suomi NPP and NASA’s Earth Observatory

How Geodynamo Models Churn the Outer Core


By Alka Tripathy-Lang

February 16, 2021

Deep beneath our feet, Earth’s liquid iron outer core sloshes and churns, slowly crystallizing to form the solid inner core while simultaneously generating our planet’s magnetic field. In a recent study, Domenico Meduri, a geodynamo modeler at the University of Liverpool, focused on the past 10 million years of this erratic, roiling motion—more like river rapids than calm waters—using state-of-the-art computational facilities and refined code.

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