Table 5 RMS vector field differences i,j R in units of nT between IGRF-2015 candidates and also between them and the arithmetic mean of all candidates M and the median M med. The bottom row displays the mean of the RMS vector field differences between each candidate model and all other candidate models \({~}_{i}\overline {R}\) from Eq. 8 labelled “Mean Diff”
From: Evaluation of candidate geomagnetic field models for IGRF-12
i,j R / nT | A | B | C | D | E | F | H | I | J | M | M med |
|---|---|---|---|---|---|---|---|---|---|---|---|
A | 0.0 | 6.8 | 12.1 | 14.1 | 7.3 | 6.3 | 9.1 | 10.3 | 16.2 | 6.2 | 5.8 |
B | 6.8 | 0.0 | 9.8 | 13.3 | 4.8 | 5.1 | 5.4 | 9.3 | 15.3 | 3.8 | 3.2 |
C | 12.1 | 9.8 | 0.0 | 17.0 | 12.5 | 10.1 | 10.9 | 11.8 | 15.4 | 8.8 | 8.9 |
D | 14.1 | 13.3 | 17.0 | 0.0 | 14.3 | 12.9 | 16.1 | 14.5 | 18.4 | 11.8 | 12.6 |
E | 7.3 | 4.8 | 12.5 | 14.3 | 0.0 | 6.5 | 7.0 | 9.9 | 16.3 | 5.8 | 5.2 |
F | 6.3 | 5.1 | 10.1 | 12.9 | 6.5 | 0.0 | 7.6 | 9.2 | 15.0 | 4.1 | 3.5 |
H | 9.1 | 5.4 | 10.9 | 16.1 | 7.0 | 7.6 | 0.0 | 11.8 | 17.3 | 7.0 | 6.4 |
I | 10.3 | 9.3 | 11.8 | 14.5 | 9.9 | 9.2 | 11.8 | 0.0 | 14.9 | 7.4 | 7.8 |
J | 16.2 | 15.3 | 15.4 | 18.4 | 16.3 | 15.0 | 17.3 | 14.9 | 0.0 | 12.9 | 13.8 |
Mean Diff | 10.3 | 8.7 | 12.4 | 15.1 | 9.8 | 9.1 | 10.6 | 11.5 | 16.1 | 7.5 | 7.5 |