 |
| Titel |
Explosive development of winter storm Xynthia over the subtropical North Atlantic Ocean |
| VerfasserIn |
M. L. R. Liberato, J. G. Pinto, R. M. Trigo, P. Ludwig, P. Ordóñez, D. Yuen, I. F. Trigo |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1561-8633
|
| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 13, no. 9 ; Nr. 13, no. 9 (2013-09-12), S.2239-2251 |
| Datensatznummer |
250085512
|
| Publikation (Nr.) |
 copernicus.org/nhess-13-2239-2013.pdf |
|
|
|
|
|
| Zusammenfassung |
| In winter of 2009–2010 south-western Europe was hit by several destructive
windstorms. The most important was Xynthia (26–28 February 2010), which
caused 64 reported casualties and was classified as the 2nd most
expensive natural hazard event for 2010 in terms of economic losses. In this
work we assess the synoptic evolution, dynamical characteristics and the
main impacts of storm Xynthia, whose genesis, development and path were very
uncommon. Wind speed gusts observed at more than 500 stations across Europe
are evaluated as well as the wind gust field obtained with a regional
climate model simulation for the entire North Atlantic and European area.
Storm Xynthia was first identified on 25 February around 30° N,
50° W over the subtropical North Atlantic Ocean. Its genesis
occurred on a region characterized by warm and moist air under the influence
of a strong upper level wave embedded in the westerlies. Xynthia followed an
unusual SW–NE path towards Iberia, France and central Europe. The role of
moist air masses on the explosive development of Xynthia is analysed by
considering the evaporative sources. A lagrangian model is used to identify
the moisture sources, sinks and moisture transport associated with the
cyclone during its development phase. The main supply of moisture is located
over an elongated region of the subtropical North Atlantic Ocean with
anomalously high SST, confirming that the explosive development of storm
Xynthia had a significant contribution from the subtropics. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|