Fig. 4From: Longitudinal structure in electron density at mid-latitudes: upward-propagating tidal effectsLongitudinal and altitudes variations of the residual electron density (\(\Delta Ne\)) under migrating tides condition in both hemispheres as simulated by TIEGCM. From top to bottom are \(\Delta Ne\) produced by tidal zonal wind (top), meridional wind (middle), and total wind (bottom)Back to article page