Cloud fraction and relative humidity in a prognostic cloud fraction scheme

Monthly Weather Review | July 1, 2001| | Copyright

ABSTRACT

The relationship between relative humidity and low cloud cover produced by a prognostic cloud fraction formulation is compared with observations. From a steady-state version of the prognostic cloud fraction equation, a diagnostic relation for cloud fraction can be derived for subtropical boundary layer clouds. The results are quite realistic when compared with observations illustrating the relevance of the coupling with parameterized convection.

1. Introduction A long-standing problem in the representation of

clouds in large-scale models is how to estimate cloud cover in a ...

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