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Earth, Planets and Space
Fig. 3 | Earth, Planets and Space

Fig. 3

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

Fig. 3

Error estimates on the field predicted by the ASM-V IGRF 2015.0 candidate model. Plotted is a map of the estimated local error on the B r component predicted by the ASM-V IGRF 2015.0 candidate model at the Earth’s surface (i.e., at reference radius a = 6371.2 km), as estimated from σ(B r (θ, φ)) (Eq. 2). Note that the scale is deliberately limited to 3 nT (maximum values are reached over Greenland, the absolute value being 12 nT)

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