In this paper we present a Kuo-type cumulus parameterization that includes a steady state one-dimensional cloudtop entraining cloud model and ice phase microphysics. Heating profiles computed with this parameterization are compared with those computed using the Kuo scheme and Anthes' scheme using data from SESAME-79. The results indicate that the downward flux of environmental air during storm evolution plays an important role in modification of the heating profile during the growth phase of a storm.

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