In an article published in the new community-driven, diamond open-access Journal of Studies of Earth’s Deep Interiors, I present new simulations of the geodynamo that operate at physical conditions representative of Earth’s core. The novelty here is their millenial duration in physical time, which is enough to study both the long-term convective overturn of the core and the short-term hydromagnetic wave propagation phenomena.
For the first time without the need for extrapolation, a large number of model outputs can be successfully compared to geomagnetic and geodetic observations. This demonstrates the success of the convective geodynamo paradigm at the foundation of these simulations.
Aubert, J: Geodynamo simulations spanning millennia in the physical conditions of Earth's core, Journal of Studies of Earth’s Deep Interior 2, 3, 2026, doi: 10.46298/jsedi.17790