Fig. 3From: Evolution of field-aligned current in the meridional plane during substorm: multipoint observations from satellites and ground stationsMagnetic field data from a RBSP-B, b ASB, and c EWA. RBSP-B magnetic field data are subtracted by the Tsyganenko 89 model field at \(K_p=0\). The ground magnetic data are subtracted by each average on their values in the plotted interval. The horizontal bar shows the period when the Pi2 pulsations occurredBack to article page