Dew Point Temperature So far you have learned about the

Last updated: 2/27/2023

Dew Point Temperature So far you have learned about the relationship between temperature and relative humidity You have noted that as temperature increases relative humidity decreases You have discovered that early in the morning when the temperatures are the lowest relative humidity is typically at its highest What would happen if night time temperatures dropped even colder The relative humidity would increase but by how much Relative humidity can only reach a maximum of 100 At this point the air parcel can no longer hold the same amount of water vapor an invisible gas and so water droplets begin to form suspended water droplets in the form of fog or clouds are created by condensation The temperature at which relative humidity reaches 100 is called the dew point temperature In order to calculate the dew point temperature you will still need to know the specific humidity of the air parcel but your goal is to determine at what temperature the maximum water vapor will be the same as the specific humidity You will continue to use the plotted data in Figure 6 4 above but you may find you are using it in the opposite order from your previous use Let s return to some of the scenarios you were working with before 8 If the air parcel has a specific humidity at 8 5 kg H O kg air what is the dew point temperature Show your work 9 Santa Barbara has a temperature of 22 C 70 F and a relative humidity of 60 What is the dew point temperature of the air Show your work