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Table 3 Statistics of residuals between DGRF-2015 candidates and Swarm A/B measurements (equatorward of \(\pm 55^{\circ }\) QD latitude) from 15 December 2014 to 15 January 2015

From: Evaluation of candidate models for the 13th generation International Geomagnetic Reference Field

  \(B_x\) \(B_y\) \(B_z\) |B|
  N Mean (nT) \(\sigma\) (nT) Mean (nT) \(\sigma\) (nT) Mean (nT) \(\sigma\) (nT) Mean (nT) \(\sigma\) (nT)
B 21,113 0.93 4.45 1.37 4.65 − 0.41 3.87 0.11 3.81
CM 21,113 1.41 4.28 1.29 4.58 − 0.38 3.96 1.53 3.75
CU 21,113 1.05 4.45 1.34 4.64 − 0.49 3.96 0.36 3.66
D 21,113 1.15 4.39 1.32 4.65 − 0.52 3.82 0.66 3.74
G 21,113 0.25 4.41 1.29 4.63 − 0.34 3.97 − 0.60 3.88
IP 21,113 1.12 4.38 1.32 4.63 − 0.52 3.99 0.83 3.84
IS 21,113 − 1.14 4.97 0.79 5.02 − 1.00 7.32 − 3.00 5.31
IZ 21,113 0.58 4.86 1.47 4.83 − 0.28 4.84 0.85 4.37
N 21,113 0.19 4.87 1.38 4.75 − 0.42 4.14 − 1.87 3.65
P 21,113 0.65 4.40 1.26 4.62 − 0.53 3.83 0.04 3.76
S 21,113 0.43 4.48 1.13 4.59 0.16 4.58 0.11 4.50
M 21,113 0.60 4.39 1.27 4.61 − 0.43 4.04 − 0.09 3.84
\(M_{\text{med}}\) 21,113 0.89 4.39 1.30 4.60 − 0.45 3.88 0.39 3.80
Robust 21,113 0.71 4.39 1.29 4.62 − 0.43 3.94 0.06 3.80
  1. Vector components are given in the NEC frame