Fig. 7From: Daily and seasonal variations in the linear growth rate of the Rayleigh-Taylor instability in the ionosphere obtained with GAIAExamples of the eastward electric field variations in GAIA. Day-to-day variations of the eastward electric field at the EAR site are shown a for 21–30 March, 2011 and b for 21–30 June 2011. The prereversal enhancement is clearly seen in March around 12 UT (i.e., 18–19 LT), while it is much smaller in JuneBack to article page