GGR112H5 Lecture Notes - Lecture 8: Fluid Parcel, Diabatic, Humidity
Document Summary
Ggr112 lecture 8 water & atmospheric. There are three states: heat properties. Phase changes, ice needs 80 calories to melt, water needs 100 calories to evaporate, vapor needs 540 calories to evaporate. The solid phase of water (ice) is less dense than the liquid phase: explains why ice sits above water line. Water and remote sensing: water vapor absorbs mid-infrared radiation. Air consists of mostly nitrogen, oxygen and argon. The concentration of water vapor varies in the atmosphere. Specific humidity mass of h20 per mass of air: is not affected by changes in volume as air parcel goes up or down through the atmosphere. Saturation vaporization pressure: the vapor pressure at which a parcel of air is saturated and hold no more vapor is called. Saturated vapor pressure : in other words atmosphere can hold more water vapor at higher temperatures.
