Fig. 15
From: The CHAOS-7 geomagnetic field model and observed changes in the South Atlantic Anomaly
Top: locations of single-event upsets (SEUs) registered onboard the Swarm satellites between November 2013 and August 2019 (black dots) plotted on top of the field intensity at 450-km altitude in August 2017 according to the CHAOS-7 model. Bottom: field intensity from the CHAOS-7 field model in August 2017 at 450-km altitude with local time series of field intensity, constructed using the geomagnetic virtual observatory approach, shown in white for the 300 equal-area distributed positions marked by the red dots. The mean value has been removed from each field intensity series and the maximum field change is 492 nT