GGR100H1 Lecture Notes - Lecture 6: Soot, Supersaturation, Ice Crystals
Document Summary
Water vapour in the- the amount of water that can be held in the air is determined by the air"s temperature: colder air can hold much less water vapour than warm air, 100% relative humidity- saturation point. As air is heated the amount of water hat it can hold increases, making the relative (but not absolute) humidity go lower7. Relative humidity: ratio between the amount of water vapour in the air, relative to the maximum amount possible in the air, at a given temperature that given temperature (expressed as a percent) When a mass of air becomes saturated (100% relative humidity)- this temperature is called the dew point temperature- water vapour will form liquid (dew) changes the relative humidity, and also changes the rate of evaporation or condensation. Changes in temperature change the holding capacity of air- morning, when temperature is lowest.
