Simulation of Tropical Convective Systems. Part I: A Cumulus Parameterization

Abstract
A new cumulus parametefization is developed for ffse in mesoscale model simulations of precipitating convective systems. It is designed to estimate convective properties using a cloud model that interacts with the mesoscale model in a physically consistent manner. The cloud model is initiated by and interacts with the grid-scalecirculation without being constrained in instantaneous equilibrium with the grid-scale flow. The parameterization is designed for use in conjunction with explicit moist processes. Simulations of tropical convective lines performed using the scheme are presented in a companion paper (Part II).

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