| Class A, Pan Evaporimeter | Case A | Case B | ||||||
| Pan Surrounded by a Low Vegetal Cover | Pan A, Rainfed Fallow | |||||||
| Average Relative Humidity % | Low < 40% | Medium | High | Low < 40% | Medium | High | ||
| 40% - 70% | >70% | 40% - 70% | >70% | |||||
| Winds | Distance Upwind from the Green Cover (m) | Distance Upwind from Fallow Rainfed (m) | ||||||
| km・d−1 | ||||||||
| Weak | 0 | 0.55 | 0.65 | 0.75 | 0 | 0.7 | 0.8 | 0.85 |
| <175 | 10 | 0.65 | 0.75 | 0.85 | 10 | 0.6 | 0.7 | 0.8 |
| 100 | 0.7 | 0.8 | 0.85 | 100 | 0.55 | 0.65 | 0.75 | |
| 1000 | 0.75 | 0.85 | 0.85 | 1000 | 0.5 | 0.6 | 0.7 | |
| Moderate | 0 | 0.5 | 0.6 | 0.65 | 0 | 0.65 | 0.75 | 0.8 |
| 175 - 425 | 10 | 0.6 | 0.7 | 0.75 | 10 | 0.55 | 0.65 | 0.7 |
| 100 | 0.65 | 0.75 | 0.8 | 100 | 0.5 | 0.6 | 0.65 | |
| 1000 | 0.7 | 0.8 | 0.8 | 1000 | 0.45 | 0.55 | 0.6 | |
| Strong | 0 | 0.45 | 0.5 | 0.6 | 0 | 0.6 | 0.65 | 0.7 |
| 425 - 700 | 10 | 0.55 | 0.6 | 0.65 | 10 | 0.5 | 0.55 | 0.65 |
| 100 | 0.6 | 0.65 | 0.7 | 100 | 0.45 | 0.5 | 0.6 | |
| 1000 | 0.65 | 0.7 | 0.75 | 1000 | 0.4 | 0.45 | 0.55 | |
| Muy fuertes | 0 | 0.4 | 0.45 | 0.5 | 0 | 0.5 | 0.6 | 0.65 |
| >700 | 10 | 0.45 | 0.55 | 0.6 | 10 | 0.45 | 0.5 | 0.55 |
| 100 | 0.5 | 0.6 | 0.65 | 100 | 0.4 | 0.45 | 0.5 | |
| 1000 | 0.55 | 0.6 | 0.65 | 1000 | 0.35 | 0.4 | 0.45 | |