Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2021.105503 |
Synoptic patterns and mesoscale precursors of Italian tornadoes | |
Leonardo Bagaglini, Roberto Ingrosso, Mario Marcello Miglietta | |
2021-02-04 | |
发表期刊 | Atmospheric Research
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出版年 | 2021 |
英文摘要 | An analysis of synoptic patterns and mesoscale precursors is produced for Italian tornadoes for the period 2000–2018. Anomaly maps of different parameters are extracted from ERA-5 reanalysis. To highlight typical large-scale configurations, a clustering analysis is applied to define different regional clusters, representative of areas affected by a large number of tornadoes. The analysis shows that: a)Significant anomalies of synoptic variables and mesoscale precursors are generally present over and nearby the region where tornadoes occur, in particular for significant tornadoes (EF2+). b) Differences among clusters suggest that the environmental conditions favourable to tornado development differ between southern and northern Italian regions. In the Ionian region and Sicily, tornadoes occur when the northern end of a warm/moist tongue is advected toward an area of strong low-level shear. In the northern regions, high-shear cold air intrusions from continental Europe, combined with the high humidity content due to intense evaporation from the Mediterranean during summer, favour supercell triggering. c) tornadoes in southern regions are characterised by the highest anomaly values in wind shear, storm relative helicity and CAPE; d) significant SST positive anomalies are observed for southern tornadoes. |
领域 | 地球科学 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/313614 |
专题 | 地球科学 |
推荐引用方式 GB/T 7714 | Leonardo Bagaglini, Roberto Ingrosso, Mario Marcello Miglietta. Synoptic patterns and mesoscale precursors of Italian tornadoes[J]. Atmospheric Research,2021. |
APA | Leonardo Bagaglini, Roberto Ingrosso, Mario Marcello Miglietta.(2021).Synoptic patterns and mesoscale precursors of Italian tornadoes.Atmospheric Research. |
MLA | Leonardo Bagaglini, Roberto Ingrosso, Mario Marcello Miglietta."Synoptic patterns and mesoscale precursors of Italian tornadoes".Atmospheric Research (2021). |
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