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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-21 20:28 |
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Conference: Bucharest University Faculty of Physics 2008 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
Black Sea influences on extreme winter precipitation in Romania
Authors:
R. Bojariu(1), E. Ion-Bordei(2), F. Giorgi(3), S. A. Rauscher(3), X. Bi(3)
Affiliation:
1 National Meteorological Administration, Bucharest
2 Universitaty of Ecology, Bucharest
3 International Centre for Theoretical Physics, Trieste
E-mail
bojariu@meteoromania.ro
Keywords:
climate variability and change, regional modelling, Mediterranean cyclones
Abstract:
Atmospheric circulation provides permanent heat and humidity transfer between sea surface and the surrounding regions. Our study aims to identify the role of regional sea surface temperature anomalies on extreme precipitation in Romania. We used daily precipitation amounts from 104 Romanian stations to build a seasonal time series of extreme precipitation for the period 1961-2000. Canonical correlation analysis of observed extreme precipitation and sea surface temperatures (SSTs) over the Mediterranean and Black Seas suggests that local extreme precipitation is significantly affected by the Black Sea surface temperatures in winter. This result is confirmed by sensitivity experiments with a regional climate model in which Black Sea surface temperature is raised by 2 K.
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