Downslope windstorm ( bora wind ) are observed, mostly during the winter season, in the adriatic area. Bora, a cold dry northeasterly wind, influences a region, which extends from Trieste ( Italy) southward for nearly 500km. It shows an alongshore variability in speed, mainly affected by the orography of the mountain chain along the eastern adriatic coast. The rapresentation of this characteristic needs high horizontal resolution for the previsional model; moreover, the strong wind speed changes the sea status, so that the marine forecasting can not leave out this space and time varying atmospheric forcing field. A three dimensional, hydrostatic meteorological model ( Eta model ) is used to investigate a bora episode, occurred on 3-6 January 1995. This work provides a description of the meteorological conditions able to develop the event and an analysis of the interaction between the flow and Dinaric Alps. The simulation results highline the presence of mountain wave breking over the lee slope and the propagation of the wind over the Adriatic Sea.

A case study of severe windstorm in the Adriatic region / Morelli, Sandra; M. S., Tesini. - In: GEOPHYSICAL RESEARCH ABSTRACTS. - ISSN 1029-7006. - ELETTRONICO. - 4:(2002), p. EGS02-A-05226. ((Intervento presentato al convegno European Geophysical Society General Assembly tenutosi a Nice (France) nel 21-26 April 2002.

A case study of severe windstorm in the Adriatic region

MORELLI, Sandra;
2002

Abstract

Downslope windstorm ( bora wind ) are observed, mostly during the winter season, in the adriatic area. Bora, a cold dry northeasterly wind, influences a region, which extends from Trieste ( Italy) southward for nearly 500km. It shows an alongshore variability in speed, mainly affected by the orography of the mountain chain along the eastern adriatic coast. The rapresentation of this characteristic needs high horizontal resolution for the previsional model; moreover, the strong wind speed changes the sea status, so that the marine forecasting can not leave out this space and time varying atmospheric forcing field. A three dimensional, hydrostatic meteorological model ( Eta model ) is used to investigate a bora episode, occurred on 3-6 January 1995. This work provides a description of the meteorological conditions able to develop the event and an analysis of the interaction between the flow and Dinaric Alps. The simulation results highline the presence of mountain wave breking over the lee slope and the propagation of the wind over the Adriatic Sea.
4
EGS02-A-05226
Morelli, Sandra; M. S., Tesini
A case study of severe windstorm in the Adriatic region / Morelli, Sandra; M. S., Tesini. - In: GEOPHYSICAL RESEARCH ABSTRACTS. - ISSN 1029-7006. - ELETTRONICO. - 4:(2002), p. EGS02-A-05226. ((Intervento presentato al convegno European Geophysical Society General Assembly tenutosi a Nice (France) nel 21-26 April 2002.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/618015
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