Editing Dew point (section)

== Frost point ==
The frost point is similar to the dew point in that it is the temperature to which a given parcel of humid air must be cooled, at constant [[atmospheric pressure]], for [[water vapor]] to be [[deposition (phase transition)|deposited]] on a surface as [[ice crystals]] without undergoing the liquid phase (compare with [[sublimation (phase transition)|sublimation]]). The [[frost]] point for a given parcel of air is always higher than the dew point, as breaking the stronger bonding between water molecules on the surface of ice compared to the surface of ([[supercooled]]) liquid water requires a higher temperature.<ref>{{cite web |url=http://www.theweatherprediction.com/habyhints/347/ |title=Frost point and dew point |last=Haby |first=Jeff |access-date=September 30, 2011}}</ref>