Does the tropical cyclone's response to vertical wind shear depend on the near-core tangential wind structure?

The dependence of tropical cyclone evolution in vertical shear on the near-core tangential wind profile is examined here using a simplified model of the vortex-shear interaction. An increase in vorticity gradient within the vortex skirt surrounding the core yields a more rapid evolution of the sheared vortex towards a steady-state left-of-shear tilt orientation. The numerical simulations confirm a previously-developed heuristic model for the approximate temporal evolution of vortex tilt under shear forcing. According to this model, the rate at which the vortex asymptotes to the steady-state configuration is a function of the intrinsic damping rate of a core tilt mode, which, in turn, is directly proportional to the gradient of vorticity within the vortex skirt.