Polarimetric Doppler radar analysis of squall line systems crossing Salento Peninsula
| Autor: | Fabrizio Congedo, G. Trivellone, F. Pasqualucci, Franco Prodi |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Atmospheric Science
010504 meteorology & atmospheric sciences Meteorology Doppler radar Mesoscale meteorology 020207 software engineering Wake low 02 engineering and technology 01 natural sciences law.invention Squall law 0202 electrical engineering electronic engineering information engineering Thunderstorm Weather radar Radar Squall line Geology 0105 earth and related environmental sciences |
| Zdroj: | Meteorological Applications. 24:338-348 |
| ISSN: | 1350-4827 |
| DOI: | 10.1002/met.1632 |
| Popis: | A detailed observational study of squall line thunderstorms, a particular form of mesoscale convective systems arranged in a line that repeatedly affected Salento Peninsula (southern Apulia, Italy) throughout 2015, is presented and discussed. Specifically, three relevant events that occurred in January, at the end of September and in October are described, combining thermodynamic and synoptic analysis with radar imagery delivered by the cutting-edge polarimetric Doppler radar recently installed in Torchiarolo, in the central part of Salento Peninsula. Reported observational information reveals that, regardless of the season of the year, convergence along an approaching cold front represents the common initiating mechanism leading to the formation of linear convective systems. Furthermore, high resolution Doppler data provided by Torchiarolo radar allows better detection and prompt recognition of severe weather signatures, such as bow echoes and cyclonic mesovortices, commonly associated with squall line thunderstorms. Therefore, the present study clearly confirms the key role of the new advanced weather radar installed in Torchiarolo which thus represents a powerful tool giving researchers and forecasters valuable information about kinematic and microphysical properties of severe weather systems crossing Apulia region, especially Salento Peninsula. |
| Databáze: | OpenAIRE |
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