Program in Atmospheres, Oceans and Climate
Massachusetts Institute of Technology
Cambridge, MA 02139, USA
Recent work on the interaction of convection with large-scale flows suggests that a closure based on a presumed equilibrium between surface enthalpy fluxes and input of low-entropy air into the subcloud layer by convective downdrafts works well in models of the tropical atmosphere. Such a convective representation is here used in a simple numerical tropical cyclone model. This further simplifies the model while in many respects improving its performance.