Skip to main content
Earth, Planets and Space
Fig. 5 | Earth, Planets and Space

Fig. 5

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

Fig. 5

The secular variation trend in X, Y and Z field components between 2015.0 and 2019.0 epochs at 476 km altitude from the virtual observatory satellite data (black dots, see text) at the positions of the INTERMAGNET stations HER, HBK, TSU and KMH and the models SACFM-3 (red) and CHAOS-6- × 9 (blue). Gray lines represent piecewise linear fits to highlight abrupt changes of trend

Back to article page