Abstract
The general aspects for obtaining a consistent parameterization scheme, including prediction of cloud water content, are discussed. Regardless of whether the condensation is convective or stratiform, the basic problem is to deduce formulations for the partitioning of converging vapor in a grid box between i) a change of the existing cloud mass, ii) a change of cloud volume and iii) a change of the vapor content of the box. The parameterizations of the processes responsible for this partitioning become different, primarily depending on whether the condensation is convective or stratiform. Those various basic formulations are discussed individually and in conjunction; a specific approach is presented as a concrete application. A brief discussion is devoted to special features related to stratocumulus and to cirrus clouds that appear to require attention in addition to the overall formulations.
At present there is a severe lack of relevant data on cloudiness for verification and validation of condensation/cloud parameterization schemes. This situation is addressed in the closing section of this chapter.
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Sundqvist, H. (1988). Parameterization of Condensation and Associated Clouds in Models for Weather Prediction and General Circulation Simulation. In: Schlesinger, M.E. (eds) Physically-Based Modelling and Simulation of Climate and Climatic Change. NATO ASI Series, vol 243. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3041-4_10
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DOI: https://doi.org/10.1007/978-94-009-3041-4_10
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