Schematics of Large scale condensation scheme

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  Introduction of Large scale condensation with cloud water

The large scale condensation parameterization represents condensation and precipitation of stratus other than convective cloud with environmental field. The large scale condensation parameterization calculates latent heat release to environment, decrease of water vapor, and precipitation. Moreover to calculate cloud – radiation interaction, it calculates in-cloud liquid water and cloud fraction and give those tp radiation processes. Following Le Truet and Li (1991), cloud of stratus type is determined by environmental relative humidity. Besides water vapor and cloud water content are used for prognostic variables. Assuming in-grid total water mixing ratio, it diagnose cloud water content by condensation, cloud fraction, autoconversion to rain, and evaporation of falling precipitation.