The Use of the Total Electron Content Measured by Navigation Satellites to Estimate Ionospheric Conditions

Figure 10

Behavior of TEC and foF2 during disturbances according to the midlatitude Juliusruh station in April 2001. On (a) experimental curves of TEC are shown by red dots; blue dots concern curves for medians. On (b) experimental curves of foF2 are shown by red dots. Black dots show curves for the initial model IRI. Green triangles represent curves for a case of joint use of TEC(obs) and τ(med). Blue dots concern curves for medians.

(a)

(b)