Fig. 8From: Latitudinal dependence on the frequency of Pi2 pulsations near the plasmapause using THEMIS satellites and Asian-Oceanian SuperDARN radarsPower spectral densities of Doppler velocities from a beam 14 at ranges 3–5 and 14–22 for UNW, b beam 4 at the range 13–27 for TIG, and c beam 4 at ranges 21–29 and 52–57 for HOK, as shown in Fig. 7 Back to article page