Earth's magnetic field is generated by fluid motions in the outer core. This geodynamo has
operated for over 3.4 billion years. However, the mechanism that has sustained the …

The magnetic fields of the planets, including the Earth, are generated by dynamo action in
their fluid cores. Numerical models of this process have been developed that solve the …

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 …

Turbulent motions of liquid metal in Earth's outer core generate the geomagnetic field.
Magnetic field observations from low-Earth-orbit satellites, together with advanced numerical …

The secular variation of the core field is generally characterized by smooth variations,
sometimes interrupted by abrupt changes, named geomagnetic jerks. The origin of these …

Inferring the core dynamics responsible for the observed geomagnetic secular variation
requires knowledge of the magnetic field at the core‐mantle boundary together with its …

Jupiter's dynamo is modelled using the anelastic convection-driven dynamo equations. The
reference state model is taken from French et al.[2012]. Astrophys. J. Suppl. 202, 5,(11pp) …

We present core flows constructed from high resolution secular variation (SV) models for the
epochs 2001, 2002.5 and 2004, assuming that these flows are quasi-geostrophic in the core …

We make use of recent geodynamo simulations to propose a reduced stochastic model of
the dynamics at the surface of Earth's core. On decadal and longer periods, this model …

Data assimilation in geomagnetism designates the set of inverse methods for geomagnetic
data analysis which rely on an underlying prognostic numerical model of core dynamics …