Estimation of Radial Distribution of Eddy Viscosity in a Mature Hurricane

This paper describes an analytic solution relatingthe radial distribution of the radial component, K1 , of eddy viscosity to the observed radial distribution of tangential velocity in a mature hurricane. It is an extension of a previous paper by EVANS and DAVTES (1979), which was concerned with the vertical distribution of the eddy viscosity components. Over most of the region between the eye boundary and the position of maximum tangential velocity the radial distribution of Kl is found to be very close to a linear function of the radial distribution of tangential velocity, but increasing sharply in the peak velocity region. The corresponding radial distribution of vertical velocity is then found to be very similar to typical observed profiles.