Fig. 7From: Simultaneous ground-based optical and SuperDARN observations of the shock aurora at MLT noonCUTLASS Finland radar echo power, LOS velocity and spectral width at 09:20:00, 09:23:00 and 09:25:00 UT on 7 January 2005 were shown in MLAT-MLT coordinates. In each plot, noon is to the top and dusk to the left as marked in the first plot. The concentric dashed circles represent 10° increments of magnetic latitude, marked at 60°, 70° and 80°Back to article page