Further Experiments with an Hurricane- Ocean Interaction Model

Modifications were made to Corgnati's (1971) steady state, symmet-rical hurricane model, which was based on a model proposed by Riehl (1963), and in which bulk aerodynamic transfer formulas were used to predict the air-sea interaction below a specified vortex. The modifi-cations resulted in a more flexible model in which hurricane intensity was controlled by sensible and latent heat fluxes, which were in turn dependent on the ocean surface temperature. A boundary layer model based on similarity theory was then used, to specify air-sea interaction, by replacing the bulk transfer formulas with Cardone's (1969) extension of Blackadar's (1965) two-layer neutral, baroclinic boundary layer model. To achieve realistic results the time scale was modified to include centripetal acceleration, which resulted in a decreasing height of frictional influence with decreasing radius. Varying Cardone's for-mulation of roughness length and the ratio of eddy exchange coefficient