Fig. 6From: Ionospheric signatures of the April 25, 2015 Nepal earthquake and the relative role of compression and advection for Doppler sounding of infrasound in the ionosphere a Ionogram recorded in Taiwan on 25 April at 6:30 UT with superposed calculated electron density profile (magenta line); b Ionogram measured in the Czech Republic on 25 April at 6:45 UT with electron density profile (black line); c plasma density gradient for electron density profile in Fig. 6a), Taiwan (red), and profile in Fig. 6b, Czech Republic (blue); d Sound speed profile for Taiwan (red) and the Czech Republic (blue)Back to article page