Fig. 9
From: Simulation of horizontal sporadic E layer movement driven by atmospheric tides
Schematic diagram of relationships between Es layers and a, b semi-diurnal tides and d, e diurnal tides. The top plots a and d display the Es layers and the zonal tide component. The middle plots display the Es layers and the meridional tide component. The vertical axis represents altitude and horizontal axis represents local time. The black lines in the bottom panels c and f indicate the temporal variations in the movement directions (N, W, S, and E) of the Es layers due to the tides