Dew point and condensation
Dew point temperature and the surface or leaf margin above it.
Inputs
- Dew point
- 20.26 °C
- Surface margin
- -1.26 °C
The surface is at or below dew point.
Sent only with your enquiry. The original CSV is not attached.
Dew point inverts the Tetens equation over liquid water. A margin ≤ 0 °C indicates condensation conditions at the specified surface. Sensor uncertainty and local differences are excluded. Below freezing this is not a frost-point calculation.
How we calculate
γ = ln(RH/100) + 17.27T/(237.3 + T); Td = 237.3γ/(17.27 − γ); ΔT = Tsurface − Td [°C]Method source ↗