User:Lennart.mann/sandbox

Cloud Parameterization
Cloud Parameterization describes the way the formation and dissolving of clouds is included in climate and weather models whose resolutions around 10-50 km are too low to solve these processes. Cloud parameterization at least provides the determination of the horizontal cloud fraction and the amount of condensed water possessed by the clouds inside the grid box. A distinction is drawn between diagnostic and prognostic parameterization schemes which vary in clompexity and performance compared to observations. Main uncertainities occur in the accessiblity of cloud water that is strongly affected by convection which needs to be parameterized as well in large scale models.