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Titel |
Partitioning of snowy and rainy precipitation in a case of a north Adriatic frontal passage |
VerfasserIn |
M. Monai, A. M. Rossa, A. C. Bonan |
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 (2006-04-18), S.279-284 |
Datensatznummer |
250004305
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Publikation (Nr.) |
copernicus.org/adgeo-7-279-2006.pdf |
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Zusammenfassung |
A case of snow fall in the plains of the Northern Italian region Veneto is
presented from a forecasters' perspective. Contrasting forecast guidance came
from the ECMWF global model and the limited area model LAMI. The former
showed a marked warm-moist Sirocco flow coming from the Adriatic Sea onto the
coast at all levels, the latter discerned a distinct cold air flow from the
north-east along the foothills of the Alps. The integrated observing network
of the Centro Meteorologico di Teolo ARPA Veneto revealed this cold-air
structure and helped the forecaster in the choice of the forecast and underpin
the snowfall alert to the road authorities. It is argued that this feature is
a crucial element for the occurrence of snowfall over the Veneto plains, and
that the high-resolution numerical weather prediction model was essential in
describing this mesoscale feature. The nature of the north-easterly flow is
thought to be a combination of a Bora like flow and a barrier jet induced by
flow blocking by the Alps. |
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