2 papers
physics.flu-dyn2025
Online learning of subgrid-scale models for quasi-geostrophic turbulence in planetary interiors
Hugo Frezat, Thomas Gastine, Alexandre Fournier
Machine learning approaches to subgrid-scale (SGS) modelling are now well established in atmospheric and oceanic applications. Among these, online end-to-end learning, where the di…
physics.geo-ph2025
Core-surface kinematic control of polarity reversals in advanced geodynamo simulations
Julien Aubert, Maylis Landeau, Alexandre Fournier +1
The geomagnetic field has undergone hundreds of polarity reversals over Earth's history, at a variable pace. In numerical models of Earth's core dynamics, reversals occur with incr…