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Tropical Cyclone Intensification Under Moderate Vertical Wind Shear, Rosimar Rios-Berrios
Tropical Cyclone Intensification Under Moderate Vertical Wind Shear, Rosimar Rios-Berrios
Legacy Theses & Dissertations (2009 - 2024)
Deep-layer (200–850 hPa) vertical wind shear is generally an inhibiting factor for tropical cyclone intensification. Multiple studies—ranging from case studies to climatological analyses—have consistently shown that the chances of tropical cyclone intensification decrease with increasing vertical wind shear magnitude. However, tropical cyclones can intensify under moderate shear—the range of shear magnitudes that are neither too weak to have negligible influence on intensity nor too strong to completely halt intensification. Intensity, track, and precipitation forecasts of tropical cyclones under moderate shear can be highly uncertain; therefore, explaining how tropical cyclones evolve under seemingly unfavorable conditions is an important step towards improved …
Variations In Potential Vorticity Streamer Activity : Development Pathways, Environmental Impacts, And Links To Tropical Cyclone Activity In The North Atlantic Basin, Philippe Pierre Papin
Variations In Potential Vorticity Streamer Activity : Development Pathways, Environmental Impacts, And Links To Tropical Cyclone Activity In The North Atlantic Basin, Philippe Pierre Papin
Legacy Theses & Dissertations (2009 - 2024)
This dissertation examines the climatological occurrence of potential vorticity streamers (PVSs) during the tropical cyclone (TC) season that occur in the upper troposphere in the North Atlantic (NATL) basin, assessing how their variations in frequency, area, and intensity impact the synoptic environment, how they are induced by different synoptic-dynamic patterns, and how they modify TC activity and genesis pathways.
Turbulence In The Upper Levels Of Tropical Cyclones, Michaela Leigh Rosenmayer
Turbulence In The Upper Levels Of Tropical Cyclones, Michaela Leigh Rosenmayer
Legacy Theses & Dissertations (2009 - 2024)
Turbulence in the cirrus canopy of tropical cyclones (TCs) can give an indication about the physical processes that occur in this expansive cloud deck. The low stability and/or large shear that likely coincides with turbulent layers can be produced by radiative forcing, convective forcing, and sublimation of frozen precipitation from the cirrus canopy. As a result, turbulence in the cirrus canopy can give an indication about the impact of various physical processes in tropical cyclones.