Table 2 Comparison results of final GIMs w.r.t. the Jason-2/3 VTECs during the four-year period
From: Status of CAS global ionospheric maps after the maximum of solar cycle 24
GIMs | Bias in TECu | STD in TECu | RMS in TECu | Rel. error/% | Days |
|---|---|---|---|---|---|
CASG | 0.53 | 3.43 | 3.57 | 21.3 | 1376 |
CODG | 0.65 | 3.41 | 3.61 | 21.7 | 1379 |
EMRG | 0.41 | 3.19 | 3.35 | 24.4 | 1238 |
ESAG | 0.31 | 3.96 | 4.09 | 25.4 | 1379 |
JPLG | 3.04 | 3.52 | 4.97 | 29.7 | 1379 |
WHUG | 0.24 | 4.24 | 4.39 | 27.3 | 1279 |
UPCG | 1.03 | 3.13 | 3.51 | 21.1 | 1334 |
IGSG | 1.63 | 3.33 | 3.95 | 23.7 | 1367 |