Table 3 Comparison results of rapid 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 |
|---|---|---|---|---|---|
CARG | 0.42 | 3.74 | 3.87 | 23.0 | 1372 |
CORG | 0.63 | 3.90 | 4.09 | 24.6 | 1381 |
EHRG | 0.50 | 3.71 | 3.88 | 23.5 | 1353 |
ESRG | 0.39 | 3.98 | 4.10 | 24.8 | 1353 |
JPRG | 3.09 | 3.54 | 5.04 | 30.0 | 1380 |
WHRG | − 0.47 | 4.71 | 4.83 | 38.3 | 1210 |
UPRG | 1.04 | 2.86 | 3.32 | 20.2 | 1351 |
UHRG | 1.06 | 2.85 | 3.28 | 20.6 | 1353 |
UQRG | 0.93 | 2.83 | 3.24 | 20.1 | 1355 |
IGRG | 1.61 | 3.72 | 4.16 | 23.6 | 1377 |