Ergodicity of the recent geomagnetic field

A. de Santis (1, 2) , E. Qamili (1) , G. Cianchini (1)

1 Istituto Nazionale di Geofisica e Vulcanologia
2 Campus Universitario

► Ergodic property of the recent geomagnetic field is investigated. ► Time deviations between predictive and definitive global models are analyzed. ► The results confirmed a chaotic Main Field and highlighted its ergodic character. ► The results would allow the estimation of entropic field quantities by time averages. ► Potential use of the method for improving geodynamo simulations and jerks detection.

Mots clés: Geomagnetic Field; Ergodicity; Chaos; Geomagnetic field prediction

Domaines: Sciences de la Terre

A. de Santis, E. Qamili, G. Cianchini. Ergodicity of the recent geomagnetic field. Physics of the Earth and Planetary Interiors, 2011, ⟨10.1016/j.pepi.2011.04.008⟩. ⟨hal-00759561⟩