EOSC 114 Lecture Notes - Lecture 8: Buoyancy, Cumulonimbus Cloud, Evaporation
12 Sep 2016
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Document Summary
75% of natural disasters deaths and damages in the us. Conditions in the atmosphere at a given time and place. Weather occurs in troposphere (first 11km in altitude) Heat energy from the sun is turned into: Heat we can sense or feel (or measure) When we measure temperature we are measuring sensible heat. On an atomic level this is really particle motion: latent heat. Energy absorbed from environment during a state change (ex. If gaseous h2o becomes liquid, heat is transferred to the surroundings. If liquid h2o becomes gaseous, heat is taken from the surroundings. Moisture laden air can be an energy source for storms. Amount of h2o held in the air as vapour. But total amount of water vapour in air varies with temperature. So absolute measure is not as useful as relative humidity (rh) % of maximum water vapour that could be in the air. (based on temperature)
