Fig. 7.
From: A comparison of a model using the FORMOSAT-3/COSMIC data with the IRI model
Peak electron density maps derived by F3/C (top) and IRI model (bottom) at 1200 LT in March (a), June (b), September (c) and December (d). White curves indicate magnetic equator. Intensities of EUV applied to calculations are the same as Fig. 6.