Table 5 Root-mean-square vector field differences \(_{i,j}T\) in units nT/year between SV candidate models and also between candidates and the arithmetic mean reference models M, median reference model \(M_{\text{med}}\) and robust Huber-weighted model in the rightmost columns
From: Evaluation of candidate models for the 13th generation International Geomagnetic Reference Field
\(_{i,j}T\)/nT/year | B | CM | CU | D | G | IP | IS | IZ | K | L | M | N | P | S | M | \(M_{\text{med}}\) | robust |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
B | 0.0 | 12.0 | 18.1 | 8.3 | 7.6 | 10.4 | 10.7 | 19.5 | 20.7 | 8.5 | 11.6 | 28.2 | 12.6 | 24.4 | 8.89 | 9.04 | 8.74 |
CM | 12.0 | 0.0 | 12.1 | 6.8 | 13.3 | 9.4 | 10.7 | 11.4 | 22.0 | 9.2 | 8.8 | 29.1 | 6.8 | 21.0 | 6.23 | 6.27 | 6.00 |
CU | 18.1 | 12.1 | 0.0 | 11.3 | 19.2 | 12.6 | 14.6 | 10.6 | 26.6 | 13.7 | 12.5 | 32.7 | 9.8 | 23.9 | 11.81 | 10.92 | 11.24 |
D | 8.3 | 6.8 | 11.3 | 0.0 | 10.1 | 6.8 | 8.3 | 12.2 | 21.3 | 6.7 | 6.8 | 28.8 | 5.9 | 21.9 | 3.88 | 2.42 | 2.87 |
G | 7.6 | 13.3 | 19.2 | 10.1 | 0.0 | 12.0 | 12.9 | 20.7 | 21.0 | 11.1 | 13.4 | 29.6 | 14.7 | 24.6 | 10.68 | 10.83 | 10.49 |
IP | 10.4 | 9.4 | 12.6 | 6.8 | 12.0 | 0.0 | 10.9 | 13.6 | 22.4 | 8.6 | 9.3 | 31.5 | 8.8 | 23.0 | 7.67 | 6.87 | 6.85 |
IS | 10.7 | 10.7 | 14.6 | 8.3 | 12.9 | 10.9 | 0.0 | 15.6 | 19.3 | 10.2 | 8.6 | 28.8 | 9.7 | 25.0 | 7.78 | 7.51 | 7.58 |
IZ | 19.5 | 11.4 | 10.6 | 12.2 | 20.7 | 13.6 | 15.6 | 0.0 | 26.3 | 15.1 | 12.0 | 32.6 | 9.3 | 24.4 | 12.39 | 11.61 | 11.96 |
K | 20.7 | 22.0 | 26.6 | 21.3 | 21.0 | 22.4 | 19.3 | 26.3 | 0.0 | 21.8 | 19.7 | 32.7 | 21.7 | 29.2 | 18.99 | 20.47 | 19.67 |
L | 8.5 | 9.2 | 13.7 | 6.7 | 11.1 | 8.6 | 10.2 | 15.1 | 21.8 | 0.0 | 9.1 | 28.9 | 9.1 | 23.3 | 6.81 | 6.68 | 6.27 |
M | 11.6 | 8.8 | 12.5 | 6.8 | 13.4 | 9.3 | 8.6 | 12.0 | 19.7 | 9.1 | 0.0 | 28.0 | 6.0 | 24.6 | 6.01 | 5.32 | 5.65 |
N | 28.2 | 29.1 | 32.7 | 28.8 | 29.6 | 31.5 | 28.8 | 32.6 | 32.7 | 28.9 | 28.0 | 0.0 | 28.5 | 38.0 | 26.67 | 27.92 | 27.72 |
P | 12.6 | 6.8 | 9.8 | 5.9 | 14.7 | 8.8 | 9.7 | 9.3 | 21.7 | 9.1 | 6.0 | 28.5 | 0.0 | 23.6 | 5.87 | 4.59 | 5.35 |
S | 24.4 | 21.0 | 23.9 | 21.9 | 24.6 | 23.0 | 25.0 | 24.4 | 29.2 | 23.3 | 24.6 | 38.0 | 23.6 | 0.0 | 20.96 | 22.40 | 21.43 |
Mean Diff | 14.8 | 13.3 | 16.7 | 11.9 | 16.2 | 13.8 | 14.2 | 17.2 | 23.4 | 12.5 | 13.1 | 30.6 | 12.8 | 25.1 | 11.05 | 10.92 | 10.84 |