We present the CHAOS-7 model of the time-dependent near-Earth geomagnetic field
between 1999 and 2020 based on magnetic field observations collected by the low-Earth …

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 …

Evidence of fast variations in the Earth's core field are seen both in magnetic observatory
and satellite records. We present here how they have been identified at the Earth's surface …

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 …

We present the geomagnetic field model COV-OBS. x2 that covers the period 1840–2020. It
is primarily constrained by observatory series, satellite data, plus older surveys. Over the …

The wandering of Earth's north magnetic pole, the location where the magnetic field points
vertically downwards, has long been a topic of scientific fascination. Since the first in situ …

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 …

We present an update of the geomagnetic data assimilation tool pygeodyn, use it to analyse
ground and satellite-based geomagnetic data sets, and report new findings on the dynamics …

We present a new model of time-dependent flow at low latitudes in the Earth's core between
2000 and 2018 derived from magnetic field measurements made on board the Swarm and …

We describe a new, original approach to the modelling of the Earth's magnetic field. The
overall objective of this study is to reliably render fast variations of the core field and its …