GEOG 1F91 Chapter Notes - Chapter 6: Cloud Condensation Nuclei, Humidity, Fluid Parcel
2 Nov 2016
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Document Summary
A change of state requires heat energy, or latent heat, that is stored in water molecules. Sublimation: a substance transitioning from solid to vapour. Deposition: a substance transitioning from a gas to a solid. Hydrosphere: all of the water on earth, in all forms/states. Hydrologic cycle: the movement of water within the atmosphere and earth"s. Evaporation: water changing from liquid to vapour (high over wet tropical landmasses, low over tropical deserts) Precipitation: water in the atmosphere falling back to earth in the form of rain, snow, or hail (high over the itcz, low over the subtropics) surface. Global water balance as a matter flow system. Water exchange between the earth and atmosphere must be balanced. Water flowing to the surface is positive; leaving the surface is negative. Every year there is a surplus of precipitation on land, and a surplus of evaporation over water. Relative humidity: the amount of water vapour in the air at a given time.
