Abstract

This chapter reviews briefly the main attributes of deep convection necessary to understand the effects of convection in a tropical cyclone. It begins with the usual parcel arguments and the use of aerological diagrams to investigate moist convective instability. The different types of penetrative convection are discussed, including penetrating downdrafts that are important features accompanying precipitating convection. After a discussion of the effects of deep convection on the tropical circulation, the chapter goes on to examine buoyancy in a finite horizontal region and the concept of effective buoyancy. The chapter concludes with a discussion of the cloud structure in tropical cyclones and a more in-depth discussion of issues relating to the ventilation by deep convection of air converging in the boundary layer.

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