A gugli 381000 találatot dobott ki rá nevet

Link


pa= ps * RH% / 100

The next step is to calculate the temperature at which pa would be the saturation vapour pressure. This means running backwards the equation given above for deriving saturation vapour pressure from temperature:

Let w = ln ( pa/ 610.78 )
Dew point = w *238.3 / ( 17.294 - w )