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Full-Text Articles in Meteorology
Vortex Rossby Wave Propagation In Three Dimensional Tropical-Cyclone-Like Baroclinic Vortices, Cen Gao
Vortex Rossby Wave Propagation In Three Dimensional Tropical-Cyclone-Like Baroclinic Vortices, Cen Gao
FIU Electronic Theses and Dissertations
This study aims to advance our understanding of the inner-core dynamics of tropical cyclones (TCs) from the perspective of vortex Rossby waves (VRWs) through investigating wave kinematics, propagation feature, and wave-mean-flow interaction in three dimensional TC-like baroclinic vortices. Using the Wenzel-Kramers-Brillouin analysis in the asymmetric balanced model framework, the generalized wave dispersion relation, group velocities, and stagnation radius/height of VRW wave-packets in both pseudo-height and isentropic coordinates are derived. It is found that the VRW dispersion relation associated with baroclinic vortices in an isentropic coordinate has the same format as that of barotropic vortices in a pseudo-height coordinate. However, baroclinicity …
Evaluation Of Surface Layer Parameterizations Using In-Situ Observations, Jeremy Katz
Evaluation Of Surface Layer Parameterizations Using In-Situ Observations, Jeremy Katz
FIU Electronic Theses and Dissertations
Appropriate calculation of surface turbulent fluxes between the atmosphere and the underlying surface is one of the major challenges in geosciences. In practice, the surface turbulent fluxes are estimated from the mean surface meteorological variables based on the bulk transfer model combined with Monnin-Obukhov Similarity (MOS) theory. Few studies have been done to examine the extent that to which this flux parameterization framework can be applied to different weather and surface conditions. A novel validation method is developed in this thesis research, which is applied to evaluate the surface flux parameterization using in-situ observations. The main findings are: (a) the …