Fig. 4From: Using improved Swarm’s experimental absolute vector mode data to produce a candidate Definitive Geomagnetic Reference Field (DGRF) 2015.0 modelMaps of the radial component Br of the field for relevant model comparisons. a Difference between the DGRF 2015.0 candidate model and the official DGRF 2015.0 model. b Difference between the DGRF 2015.0 candidate model and its twin model. Both maps are computed at Earth’s surface up to degree and order 13Back to article page