Fig. 4.
From: Independent validation of Swarm Level 2 magnetic field products and ‘Quick Look’ for Level 1b data
Example of diagnostic output images from the Validation chain (continued). (a) mean-square differences per degree of the Gauss coefficients for the lithospheric field models; (b) triangle plot visualisation of differences between the Gauss coefficients of the lithospheric field models; (c, d, e) spatial models of the B r , B θ and B φ components of ionospheric field at 00:00 Magnetic Local Time on Julian Day −355.