| Highland | Lowland | |||
| GSMaP_MVK | Corrected by GAM | GSMaP_MVK | Corrected by GAM | |
| Bias | −56.18% | 2.53% | −41.27% | 44.83% |
| Error | −8.69 mm/day | 0.39 mm/day | −4.58 mm/day | 5.08 mm/day |
| RMSE | 29.5 mm/day | 25.65 mm/day | 26.3 mm/day | 22.42 mm/day |
| CNS | 0.4 | 0.6 | 0.5 | 0.33 |
| r | 0.74 | 0.75 | 0.74 | 0.73 |
| POD | 82% | 82% | 78% | 78% |
| FAR | 19% | 19% | 15% | 15% |
| HSS | 68% | 68% | 65% | 65% |