GEOG 2013 Lecture 10: Precipitation & clouds p2.
10 Feb 2017
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Document Summary
Free form state are o-h-o-h pattern on top of water, strength of is harder to evaporate. Blue- water , is curved therefore easier to pick off hydrogen molecules. Add salt to water droplets, mess up bonds and orients around na , increasing cohesian around salt. Lines are dilute when they follow the water droplet. Sulfate and ammonia hold water molecules different because of different charges. Bonds of nitrate molecules are balanced to nitrogen. Size of water droplets have different gradients associated with it. Little droplets grow faster than larger ones therefore all the same size. Larger droplets more saturation increasing latent heat because more surface exchanging with the surrounding air. Time it takes for standard cloud droplet to form is 3hrs. Clouds don"t form ice until -40, rigid hexagonal shape. Light cloud condensation need ice crystal nucleation at -15. Super cool droplets colliding with ice crystals create columns. Above -40 need catalist to have ice crystal to grow.
