Abstract
Development of the new representation of cumulus convection, emphasizing the role of microphysical parameters, was completed. The newly developed cumulus scheme was coupled with a detailed representation of radiative transfer, in the context of a one-dimensional radiative-convective equilibrium model that includes the ocean as part of the calculations. The adjustable parameters of the scheme are microphysical in nature. They include the parcel precipitation efficiencies, {epsilon}{sub i}, which are defined as the fraction of condensed water converted to precipitation in samples of air lifted reversibly from the subcloud layer; {sigma}{sub d}, the areal fraction covered by unsaturated downdraft; and {sigma}{sub s}, the fraction of precipitation assumed to fall outside of cloud.
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