Parameterization of physical processes
{"Image DocumentName": "Parameterization of physical processes", "Image ImageDescription": "Important processes occur in the atmosphere on scales smaller than those which are resolved by the grid of the dynamical part of the model. The effects of these unresolved (sub-grid scale) processes are deduced from the large scale state variables predicted by the model (wind, pressure, temperature, moisture). This procedure is called parameterization. The reason that some other physical process are treated differently to the dynamical part of the model is that these important processes occur on spatial scales much smaller than that which is resolved by the discrete 3-dimensional grid on which the dynamical equations are calculated. What we can do, however, is to deduce the grid scale effects of these unresolved sub-grid scale processes from the large scale state of the atmosphere as given by the prognostic variables arising from the dynamical equations, and we call this technique parameterization. \u00a9 Crown copyright Met Office. \u00a9 Crown copyright Met Office. 20.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}