Fig. 7From: Recent geomagnetic secular variation from Swarm and ground observatories as estimated in the CHAOS-6 geomagnetic field model Top Map of the radial magnetic field at Earth’s surface for degrees 16–110 from CHAOS-6, units: nT. Map projection is Hammer-Aitoff. Bottom Spherical harmonic power spectra (left) and degree correlation (right) at Earth’s surface showing comparisons of CHAOS-6 with CHAOS-4 and MF7Back to article page