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Earth, Planets and Space
Fig. 7 | Earth, Planets and Space

Fig. 7

From: A 2015 International Geomagnetic Reference Field (IGRF) candidate model based on Swarm’s experimental absolute magnetometer vector mode data

Fig. 7

Geographical differences between SV models. Differences in the B r components, when comparing the following: a the ASM-V 2015–2020 SV test and VFM 2015–2020 SV auxiliary models, b the VFM 2015–2020 SV and N-VFM 2015–2020 SV auxiliary models, c the ASM-V 2015–2020 SV test and official 2015–2020 SV IGRF models, and d the VFM 2015–2020 SV auxiliary and official 2015–2020 SV IGRF model; all at Earth’s surface (i.e., at reference radius a = 6371.2 km)

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