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An observational study of the 7 September 2005 Barcelona tornado outbreak
Title: An observational study of the 7 September 2005 Barcelona tornado outbreak
Authors: Bech, JoanPascual Berghaenel, Ramón ORCID Autor AEMETRigo, TomeuPineda, NicolauLópez Pérez, José ManuelAutor AEMETArús Dumenjo, JoanAutor AEMETGayá, MiguelAutor AEMET
Keywords: Tornado outbreak; Llobregat delta river; Waterspouts; Tornados; Delta del Llobregat; Mangas de agua
Issue Date: 2007
Publisher: European Geosciences Union
Citation: Natural Hazards and Earth System Sciences. 2007, 7(1), p. 129-139
Publisher version:
Abstract: This paper presents an observational study of the tornado outbreak that took place on the 7 September 2005 in the Llobregat delta river, affecting a densely populated and urbanised area and the Barcelona International airport (NE Spain). The site survey confirmed at least five short-lived tornadoes. Four of them were weak (F0, F1) and the other one was significant (F2 on the Fujita scale). They started mostly as waterspouts and moved later inland causing extensive damage estimated in 9 million Euros, three injured people but fortunately no fatalities. Large scale forcing was provided by upper level diffluence and low level warm air advection. Satellite and weather radar images revealed the development of the cells that spawned the waterspouts along a mesoscale convergence line in a highly sheared and relatively low buoyant environment. Further analysis indicated characteristics that could be attributed indistinctively to non-supercell or to mini-supercell thunderstorms.
ISSN: 1561-8633
Appears in Collections:Artículos científicos 2005-2009

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