Which weather measurements are needed when calculating reference evapotranspiration?
The following are the needed weather measurements with their importance:
- Solar Radiation – Constitutes up to 80% of the equation depending on conditions.
- Air Temperature – Ties for 2nd place with wind speed.
- Wind Speed – Ties for 2nd place with air temperature.
- Relative Humidity – Has a noticeable effect when the air is really dry or really humid.