Fig. 6From: Statistical evaluation of global geomagnetic field models over Southern Africa during 2015Misfit contour plot for F observations of Southern Africa by the IGRF 12 model after corrections for crustal field bias using MF7, and external magnetospheric and ionospheric perturbations as determined by CM4 have been applied. The positions of the observation locations are indicated by dots, while the zero contour line is indicated in white Back to article page