Fig. 3From: First simulations of day-to-day variability of mid-latitude sporadic E layer structuresTemporal variations of (a) vertical ion velocity, (b) zonal winds, (c) meridional winds and (d) vertical winds on December 18, 2015. The horizontal axis is same as Fig. 2c–d, but the range of altitude is from 85 km to 130 km altitude and differs from that in Fig. 2Back to article page