Fig. 34
From: Review of the accomplishments of mid-latitude Super Dual Auroral Radar Network (SuperDARN) HF radars
The FHE beam 10 LOS velocity as a function of time and results of a spectral analysis. a The FHE beam 10 LOS velocity as a function of time for a number of different range gates. b The relative phase from the spectral analysis as a function of latitude while c shows the amplitude from the spectral analysis. Note the red dashed line in b which gives the estimated position of the plasmapause. Reproduced from Fig. 12 of Shi et al. (2017)