| Dew Point | |
The dew point is the temperature at which the moisture in the air condenses. Windographer calculates the dew point using the Magnus formula:
where: | ||
| T | is the dry-bulb temperature [°C] | |
| f | is the relative humidity [unitless] | |
| g (T, f) | is an intermediate function of temperature and relative humidity | |
| b | is a constant equal to 18.678 [unitless] | |
| c | is a constant equal to 257.14 [°C] |
The intermediate function g (T, f) is given by the following equation:
The dew point approaches the dry-bulb temperature as the relative humidity (RH) approaches 100%. The graph below shows an example of a scatter plot of the dew point temperature versus the dry-bulb temperature, color coded by RH:
In the Configure Dataset window you can create a calculated data column of the dew point in every time step.
See also
Dew point calculated data column