Eclipse effects on the vertical distribution of the ionospheric electron density over Dourbes during the eclipses on 3 October 2005 (A) and 20 March 2015 (B). The electron density profile during the eclipse (black solid curve) is compared with a profile at the same time on a normal day (grey solid curve) and with a typical night-time profile (grey dashed curve). The ionograms used for the (LIEDR) reconstruction of the electron density profiles are displayed in (C) and (D).