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Table 1 Number N of data points, Huber weighted RMS misfit and mean for the scalar F, the scalar gradient δF, the radial component B r, and its gradient δB r at polar latitudes (>|±52°|) and nonpolar latitudes (<|±52°|)

From: A Swarm lithospheric magnetic field model to SH degree 80

Data type N RMS (nT) Mean (nT)
F polar 776,238 2.88 −0.04
δF polar 181,222 0.85 0.05
B r,polar 755,198 3.02 0.02
δB r,polar 299,875 1.34 −0.06
F nonpolar 928,123 0.71 −0.01
δF nonpolar 305,153 0.33 0.05
B r,nonpolar 973,322 0.97 −0.01
δB nonpolar 182,749 0.65 0.01