Global ETD Search
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Showing 1 to 4 of 4 for “"Updraft Helicity"”.
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Impact Of Choices When Creating Average Proximity Soundings As Applied To Lp/cl/hp Supercell Environments
… each class lasted at least 7200 seconds with an updraft helicity greater than 480 m2 s-2. Only two of these nine individual cases produced long lived supercells, one each from the LP and HP sounding classes, transitioned from a forward flank dominant to rear flank dominant maximum precipitation …
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“If it happened in…” a pseudo-global warming assessment of tropical cyclone tornadoes
… thresholds based on percentile values of maximum updraft helicity (UHmax) and simulated radar reflectivity. Although the magnitude of UHmax generally decreased as the simulated TC moved inland, sensitivity testing revealed that a threshold based on the 99.95% percentile value of UHmax achieved …
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Understanding tornado intensity in supercells and quasi-linear convective systems
… a theoretical framework linking tornadic storm updraft characteristics to tornado intensity is further explored. An application of Kelvin’s circulation theorem to pre-tornadic and tornadic circulations shows that initial tornadic circulations are necessarily constrained by the circulation of the …
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Radar and model-based studies of mesovortices in cool-season quasi-linear convective systems
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms