Research Article

Critical Frequency foF2 Variations at Korhogo Station from 1992 to 2001 Prediction with IRI-2012

Figure 8

ΔfoF2 variations under shock activity for solar minimum (a), increasing phase (b), maximum solar (c), and decreasing phase (d). Full curves and dashed curves are the relative deviation of foF2 respectively with URSI and CCIR.
(a)
(b)
(c)
(d)