Fig. 2From: An investigation of solar flare effects on equatorial ionosphere and thermosphere using co-ordinated measurementsTime evolution of VTEC variations obtained for a particular PRN at Bengaluru on January 17, 2005 along with the X-ray and EUV flux (bottom panel). Top panel shows the rate of change of TEC. The dotted line (magenta) indicates the peak in the rTECBack to article page