Abstract: An objective plan for modifying the steering flow analysis around a hurricane is presented which makes the vertical mean steering velocity equal the observed hurricane velocity. Results of using this plan to make trajectory ...

Abstract: Preliminary results are presented for a new three-dimensional tropical cyclone model that is unusual because the cumulus parameterization has been replaced by release of latent heat by scales of motion that are resolved ...

Abstract: The mature structure of a model tropical cyclone is presented with emphasis on convection in the eyewall and spiral rainbands. Representative patterns of rainband activity occur during the last two days of a 13-day experiment ...

Abstract: A nested-grid hurricane model is used to transport a strong vortex over a straight coastline at ?4 m s&?1 The track, at landfall, of the vortex is ?20 km to the left of a control simulation without land. Just before landfall, ...

Abstract: The two-level baroclinic steering model developed by Kasahara (1960) for predicting hurricane trajectories is extended by taking account of the initial velocity of the hurricane. This model is applied to hurricane Audrey, ...

Abstract: A system of nested grids has been designed for the National Hurricane and Experimental Meteorology Laboratory three-level, three-dimensional model of a tropical cyclone. The inner two of the system of three nested grids ...

Abstract: The motion of a growing, tropical cyclone model vortex, which is embedded in a 10 m s?1 current on an f-plane, is shown to substantially agree with the theory of vortex motion with friction (Kuo, 1969). The vortex path is ...

Abstract: The method of model fitting, or ?adjoint method,? is tested in a barotropic hurricane track forecast model. The model vorticity field at the beginning of an assimilation period is adjusted to minimize a cost function that ...

Abstract: The method of model fitting, or adjoint method, is applied to a barotropic hurricane track forecast model described by DeMaria and Jones using a large sample of forecast cases. The sample includes all Atlantic tropical ...

Abstract: A nonlinear, two-layer, vortex-tracking semispectral model (i.e., Fourier transformed in azimuth only) is used to study the evolution of dry, but otherwise hurricane-like, initially tilted vortices in quiescent surroundings ...