| Eastern part | Western part | |||
| GSMaP_MVK | Corrected by GAM | GSMaP_MVK | Corrected by GAM | |
| Bias | −40.10% | 45.23% | −55.07% | 9.80% |
| Error | −4.95 mm/day | 5.58 mm/day | −7 mm/day | 1.24 mm/day |
| RMSE | 21.37 mm/day | 25.39 mm/day | 24.73 mm/day | 20.72 mm/day |
| CNS | 0.52 | 0.31 | 0.4 | 0.58 |
| r | 0.75 | 0.72 | 0.75 | 0.76 |
| POD | 81% | 81% | 81% | 81% |
| FAR | 18% | 18% | 18% | 18% |
| HSS | 68% | 68% | 67% | 67% |