Average monthly MAB and RMSE obtained between (i) Original IMERG and IMD and (ii) CART corrected IMERG and IMD for all months during the validation period
| Months . | MAB . | RMSE . | ||||
|---|---|---|---|---|---|---|
| Original (mm/day) . | After CART Correction (mm/day) . | Improvement (%) . | Original (mm/day) . | After CART Correction (mm/day) . | Improvement (%) . | |
| January | 0.46 | 0.43 | 5.3 | 1.04 | 0.95 | 8.7 |
| February | 0.69 | 0.53 | 22.2 | 1.45 | 1.12 | 22.8 |
| March | 0.78 | 0.62 | 19.6 | 1.58 | 1.22 | 22.5 |
| April | 0.98 | 0.69 | 29.2 | 2.02 | 1.27 | 37.3 |
| May | 1.05 | 0.83 | 20.3 | 1.91 | 1.45 | 24.0 |
| June | 2.06 | 1.53 | 25.6 | 3.82 | 2.90 | 24.2 |
| July | 2.90 | 2.20 | 24.1 | 4.76 | 3.63 | 23.8 |
| August | 2.55 | 1.93 | 24.3 | 4.02 | 3.11 | 22.7 |
| September | 1.98 | 1.44 | 26.9 | 3.17 | 2.26 | 28.8 |
| October | 1.00 | 0.85 | 14.4 | 1.70 | 1.33 | 22.0 |
| November | 0.63 | 0.54 | 13.8 | 1.48 | 1.13 | 23.8 |
| December | 0.35 | 0.37 | − 6.3 | 0.83 | 0.68 | 17.1 |
| Months . | MAB . | RMSE . | ||||
|---|---|---|---|---|---|---|
| Original (mm/day) . | After CART Correction (mm/day) . | Improvement (%) . | Original (mm/day) . | After CART Correction (mm/day) . | Improvement (%) . | |
| January | 0.46 | 0.43 | 5.3 | 1.04 | 0.95 | 8.7 |
| February | 0.69 | 0.53 | 22.2 | 1.45 | 1.12 | 22.8 |
| March | 0.78 | 0.62 | 19.6 | 1.58 | 1.22 | 22.5 |
| April | 0.98 | 0.69 | 29.2 | 2.02 | 1.27 | 37.3 |
| May | 1.05 | 0.83 | 20.3 | 1.91 | 1.45 | 24.0 |
| June | 2.06 | 1.53 | 25.6 | 3.82 | 2.90 | 24.2 |
| July | 2.90 | 2.20 | 24.1 | 4.76 | 3.63 | 23.8 |
| August | 2.55 | 1.93 | 24.3 | 4.02 | 3.11 | 22.7 |
| September | 1.98 | 1.44 | 26.9 | 3.17 | 2.26 | 28.8 |
| October | 1.00 | 0.85 | 14.4 | 1.70 | 1.33 | 22.0 |
| November | 0.63 | 0.54 | 13.8 | 1.48 | 1.13 | 23.8 |
| December | 0.35 | 0.37 | − 6.3 | 0.83 | 0.68 | 17.1 |