Wind shear negatively impacts tropical cyclone (TC) intensity by disrupting the TC vortex and introducing lower equivalent potential temperature (θe) air, weakening the core. However, the ocean, a source of heat, aids in replenishing low θe boundary layer air, mitigating shear-induced ventilation effects. Favorable oceanic conditions, like higher sea-surface temperatures (SST), prevail in storm-relative motion quadrants not yet influenced by the TC. The interaction between storm-relative (e.g., SST) and shear-relative (e.g., ventilation) frameworks remains unclear. I propose an optimal overlap of shear-relative and motion-relative storm quadrants, where shear-induced weakening is minimized due to enhanced boundary layer recovery in a favorable ocean environment. This study presents a novel dataset comprising of co-located aircraft expendable bathythermographs (AXBT) and dropsondes from TROPIC and TC-DROPS datasets. Statistical analyses reveal air-sea correlations that cause up-shear and front-storm quadrant overlaps to be most beneficial to TC health, with investigation into the physical mechanisms driving these relationships.
| Identifer | oai:union.ndltd.org:MSSTATE/oai:scholarsjunction.msstate.edu:td-7128 |
| Date | 10 May 2024 |
| Creators | Henkel, Benjamin J. |
| Publisher | Scholars Junction |
| Source Sets | Mississippi State University |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | Theses and Dissertations |
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