ATOC 184 Lecture Notes - Lecture 3: Numerical Weather Prediction, Dew Point, Chaos Theory
11 Apr 2018
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Document Summary
Numerical weather model grid: calculations are performed at each grid point, computer models that tell us what the weather will be like in the future. Impacts how the module processes what"s happening. If your module is not able to detect the terrain, it will not take those factors into consideration: be aware of limitations of module, the 60 pressure layers that used in a modern numerical weather prediction (nwp) Parameterizations: parameterization is necessary for several reasons: Computers are not yet powerful enough to treat many physical processes explicitly because they are either too small or complex to be resolved: time constraint. Radiation: how much sunlight intercepted by the atmosphere or makes it to the ground. Evaporation: how quickly is it happening over land vs water, changes whether you"re in the city, farmland, forest-changes depending on type of ground. How well clouds radiate depends on how thick they are and how high up they are in the atmosphere.
