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Earth, Planets and Space

Table 3 The rms values of the differences between 113 survey data points and model predicted values over the period 2014–2019

From: A regional geomagnetic field model over Southern Africa derived with harmonic splines from Swarm satellite and ground-based data recorded between 2014 and 2019

Component

SACFM-3

CHAOS-6- × 9

IGRF-13

ΔX (nT)

25.1

78.5

78.9

ΔY (nT)

24.3

76.6

75.2

ΔZ (nT)

29.0

83.9

83.6

  1. These differences (residuals) are presented in Fig. 2
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