Cold outbreaks from Mistral wind in the western mediterranean basin
Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
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hdl:2117/112942
Tipus de documentText en actes de congrés
Data publicació2017
Condicions d'accésAccés obert
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Reconeixement 3.0 Espanya
Abstract
Cold outbreaks over the western Mediterranean basin (WMB) associated to northern synoptic flows are investigated.
Cold air entering into this region usually comes from the Gulf of Lion and is associated to synoptic
northwesterly flow known as Mistral or tramontana wind. Due to the orographic barrier that the Pyrenees and
the Massif Central offer to this flow, it blows with a large speed blowing from the northwest to north-northeast,
perpendicular to the coast of the Gulf of Lion. Sometimes these cold outbreaks form a density current when
interact with the warmer and wetter air over the Mediterranean Sea air, being one of the primary causes of storms
over some areas of the WMB (Jansà, 1987), and affecting the weather across the whole basin (Trigo et al., 1999;
Campins et al., 2000). Associated to these density currents, clouds can form at the separation line between the
cold outbreak and the warmer sea air. These clouds can move several hundreds of kilometers offshore during more
than 24 hours forming an arc of clouds extending over several hundreds of kilometers.
A couple of events of density currents associated to cold outbreaks are investigated by using Meteosat images and
WRF model simulations. In both events, a cloud arc is observed and simulated. The main features and dynamic of
these density currents are presented.
CitacióMazon, J., Pino, D. Cold outbreaks from Mistral wind in the western mediterranean basin. A: Annual Meeting European Meteorological Society organised with European Conference on Aplications of Meteorology. "EMS Annual Meeting Abstracts". Dublin: 2017, p. 1.
Versió de l'editorhttp://meetingorganizer.copernicus.org/EMS2017/EMS2017-175.pdf
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