Fig. 1From: Day-to-day variation of pre-reversal enhancement in the equatorial ionosphere based on GAIA model simulationsDay-to-day variation of upward E × B drift velocity with respect to local time at an altitude of 300 km during a spring equinox (March–April) and b autumn equinox (September–October) of 2011 over (10° N, 100° E; GAIA co-ordinates) near Chumphon in ThailandBack to article page