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| Titel |
Diagnosis and numerical simulations of a heavy rain event in the Western Mediterranean Basin |
| VerfasserIn |
D. Santos-Muñoz, M. L. Martin, M. Y. Luna, A. Morata |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: 7th Plinius Conference on Mediterranean Storms (2005) ; Nr. 7 (2006-02-14), S.105-108 |
| Datensatznummer |
250004276
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| Publikation (Nr.) |
 copernicus.org/adgeo-7-105-2006.pdf |
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| Zusammenfassung |
| The heavy rain event of November 2001 in the western Mediterranean area was
synoptically characterized by the presence of a long-lived Omega blocking
geopotential pattern. A set of mesoscale numerical simulations using MM5 is
performed to investigate the mechanisms responsible for the convection
development through several output diagnosis. A potential vorticity
evolution showed how dry air masses were extruded from the stratospheric
levels promoting strong cyclonic circulation at all levels. Moreover, a deep
vertical column of high relative humidity over the Algerian coastline
maintained the few and geographically confined convective cells responsible
for the heavy precipitation. Mesoscale environment parameters indicated
enhanced conditional instability through a deep troposphere layer. Also,
strong vertical wind shear values, higher than 50 ms–1 over the
troposphere, were derived, indicating enough strength to promote necessary
conditions to organize and keep mesoscale convective structures. |
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