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Polarimetric Radar Characteristics of Tornadogenesis Failure in Supercell Thunderstorms
- Source :
- Atmosphere, Vol 12, Iss 581, p 581 (2021), Atmosphere, Volume 12, Issue 5
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- Many nontornadic supercell storms have times when they appear to be moving toward tornadogenesis, including the development of a strong low-level vortex, but never end up producing a tornado. These tornadogenesis failure (TGF) episodes can be a substantial challenge to operational meteorologists. In this study, a sample of 32 pre-tornadic and 36 pre-TGF supercells is examined in the 30 min pre-tornadogenesis or pre-TGF period to explore the feasibility of using polarimetric radar metrics to highlight storms with larger tornadogenesis potential in the near-term. Overall the results indicate few strong distinguishers of pre-tornadic storms. Differential reflectivity (ZDR) arc size and intensity were the most promising metrics examined, with ZDR arc size potentially exhibiting large enough differences between the two storm subsets to be operationally useful. Change in the radar metrics leading up to tornadogenesis or TGF did not exhibit large differences, though most findings were consistent with hypotheses based on prior findings in the literature.
- Subjects :
- Atmospheric Science
010504 meteorology & atmospheric sciences
Nowcasting
Meteorology
0208 environmental biotechnology
Polarimetry
02 engineering and technology
nowcasting
Environmental Science (miscellaneous)
01 natural sciences
law.invention
law
Meteorology. Climatology
supercell
Tornadogenesis
Radar
0105 earth and related environmental sciences
Storm
tornadogenesis failure
Supercell
Differential reflectivity
020801 environmental engineering
Environmental science
Tornado
QC851-999
polarimetric radar
Subjects
Details
- Language :
- English
- ISSN :
- 20734433
- Volume :
- 12
- Issue :
- 581
- Database :
- OpenAIRE
- Journal :
- Atmosphere
- Accession number :
- edsair.doi.dedup.....db10b39d3e021e00cf98c3c66863396f