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 …

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 …

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 …

We use more than 2 years of magnetic data from the Swarm mission, and monthly means
from 160 ground observatories as available in March 2016, to update the CHAOS time …

Geomagnetic jerks are abrupt changes in the second time derivative—the secular
acceleration—of Earth's magnetic field that punctuate ground observatory records. As their …

The Earth's magnetic field displays variations on a broad range of time scales, from years to
hundreds of millions of years. The last two decades of global and continuous satellite …

We present DTU's candidate field models for IGRF-12 and the parent field model from which
they were derived, CHAOS-5. Ten months of magnetic field observations from ESA's Swarm …

We report a calculation of time‐dependent quasi‐geostrophic core flows for 1940–2010.
Inverting recursively for an ensemble of solutions, we evaluate the main source of …

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 …

Abstract The European Space Agency's three-satellite constellation Swarm, launched in
November 2013, has provided unprecedented monitoring of Earth's magnetic field via a …