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Earth, Planets and Space
Fig. 4 | Earth, Planets and Space

Fig. 4

From: A harmonic spline magnetic main field model for Southern Africa combining ground and satellite data to describe the evolution of the South Atlantic Anomaly in this region between 2005 and 2010

Fig. 4

Time evolution of the main field of X, Y and Z components for SACFM-2 and CHAOS-6 between 2005 and 2010 at four magnetic observatories (TSU, KMH, HBK and HER). Time evolution of the main field of X, Y and Z components for SACFM-2 and CHAOS-6 between 2005 and 2010 at four magnetic observatories (TSU, KMH, HBK and HER). Synthesised main field data are calculated at the centre of each month between 2005.5 and 2010.5. The three columns from left to right are for X, Y and Z components, respectively. The four rows from top to bottom are for TSU, KMH, HBK and HER observatories, respectively

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