Fig. 11From: Bootstrapping Swarm and observatory data to generate candidates for the DGRF and IGRF-13IGRF candidate model. a Gauss coefficients and b the uncertainties given by the 1-σ of their normal distributions. c Gauss coefficient differences between our IGRF candidate and the published IGRF-2020 model. d Power spectrum at the Earth’s surface (blue line referred to the left y-axis) and at the CMB (red line referred to the right y-axis). Differences of the power spectrum between our candidate and the IGRF-2020 model is also given by dashed lines (blue at Earth’s surface and red at CMB)Back to article page