💧 Class A Evaporation Pan: Penman Open-Water Loss, Wind, Humidity, Cloud and the Daily Energy Balance

Watch a Class A evaporation pan beside a lake through one day: sunshine, cloud, humidity, wind and elevation set the water-body energy balance, the pan water temperature and the evaporation rate. Compare the mechanistic pan model with the Penman open-water equation split into its radiation and wind terms, see the pan coefficient, and test how a 5 K warming changes evaporation at fixed humidity versus fixed dew point. Blender-modelled pan station.