Fig. 6From: Modulation of the ionosphere by Pc5 waves observed simultaneously by GPS/TEC and EISCATWave electric field vertical structure, produced by incident Alfven wave with k = 10−3 km−1: Solid lines correspond to E 1 component, and dashed lines correspond to E 2 component. Different colors denote different frequencies (shown in the inset). All wave fields in the ionosphere have been normalized to the magnitude of the total horizontal magnetic field on the ground b 1 = 1 nTBack to article page