Fig. 14From: A comprehensive model of Earth’s magnetic field determined from 4 years of Swarm satellite observationsThe top set of curves shows the 15-day averages of \(q_1^0\) as estimated in CIY4 (blue curve), in comparison with the corresponding coefficient from the Swarm MMA data product (red), \(-Est\) (yellow), and \(-RC_e\) (purple). The bottom set of curves shows the differences of the various estimates. See text for detailsBack to article page