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Fig. 8. | Earth, Planets and Space

Fig. 8.

From: Earth magnetic field modeling from Oersted and Champ data

Fig. 8.

(a) Differences between the coefficients of POMME-3 model and our model I computed from data uniformly distributed in local times. Standard deviation 0.35 nT, 0.17 nT when removing g 01 , g 03 . (b) Differences between coefficients of POMME-3 model and our model II computed as the average of 24 UT models. Standard deviation 0.32 nT, 0.16 nT. (c) Differences between coefficients of models I and II. Standard deviation 0.16 nT. Lexicografic ranking of Gauss coefficients is used.

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