Table 5 Statistical validation of hmF2 characteristic as modeled by IRI UP and IRI
Station | Ionospheric characteristic | Variogram model | RMSE (km) | NRMSE (%) | ρ | MMDXAV (km) |
|---|---|---|---|---|---|---|
Fairford | hmF2 | IRI UP—linear | 31.567 | 11.31 | 0.817 | 7.361 |
IRI UP—power | 31.552 | 11.27 | 0.819 | 7.376 | ||
IRI UP—Gaussian | 30.334 | 10.83 | 0.796 | 7.457 | ||
IRI UP—spherical | 30.744 | 10.97 | 0.811 | 7.388 | ||
IRI UP—exponential | 30.844 | 11.00 | 0.811 | 7.479 | ||
IRI | 35.241 | 12.57 | 0.797 | 9.879 | ||
IRI UP | 29.369 | 10.44 | 0.845 | 6.844 | ||
San Vito | hmF2 | IRI UP—linear | 30.132 | 10.62 | 0.798 | 7.469 |
IRI UP—power | 30.197 | 10.64 | 0.799 | 7.674 | ||
IRI UP—Gaussian | 28.193 | 10.19 | 0.780 | 8.162 | ||
IRI UP—spherical | 29.805 | 10.50 | 0.783 | 8.053 | ||
IRI UP—exponential | 29.685 | 10.46 | 0.792 | 7.901 | ||
IRI | 33.252 | 11.70 | 0.749 | 9.577 | ||
IRI UP | 24.671 | 8.62 | 0.859 | 6.959 |