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Title: An observational study of the 7 September 2005 Barcelona tornado outbreak
Author: Bech, Joan
Pascual, R.
Rigo, Tomeu
Pineda, Nicolau
López, J. M.
Arús Dumenjó, Joan
Gayà, M.
Keywords: Observacions meteorològiques
Barcelona (Catalunya)
Meteorological observations
Issue Date: 26-Jan-2007
Publisher: European Geosciences Union
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.
Note: Reproducció del document publicat a:
It is part of: Natural Hazards and Earth System Sciences, 2007, Vol. 7, p. 129¿139
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ISSN: 1561-8633
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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