Fig. 1From: Observations of high-latitude geomagnetic field fluctuations during St. Patrick’s Day storm: Swarm and SuperDARN measurementsTotal (internal and external) and external magnetic field. Comparison between the original X and Y component of the geomagnetic field (called \(X_\mathrm{Total}\) and \(Y_\mathrm{Total}\), respectively) and the temporal trend of the same components obtained after the removal of the geomagnetic field’s internal component generated by CHAOS-5 model (called \(X_\mathrm{External}\) and \(Y_\mathrm{External}\), respectively)Back to article page