A Moist Available Potential Energy Budget for an Axisymmetric Tropical Cyclone

Abstract The main energy source for the intensification of a tropical cyclone (TC) is widely accepted to be transfer from ocean atmosphere via surface fluxes. pathway through which these fluxes lead an increase in kinetic has typically been interpreted either terms total potential or dry available (APE), entropy-based heat engine viewpoint. Here, we use local theory APE construct budget moist idealized axisymmetric simulation cyclone. This first full atmospheric model. In framework, latent are dominant generator APE, then converted into buoyancy core region TC, inward transport by secondary circulation more important than its production. viewpoint describes spatially and temporally varying efficiencies; may useful understanding how changes efficiency influence TC development, have maximum that can linked Carnot featuring intensity theory.