s . ao - p h ] 1 5 N ov 2 00 2 Temperature , precipitation and extreme events during the last century in Italy
نویسنده
چکیده
The paper summarises activities within a broad-based research program for the reconstruction of the evolution of Italian climate in the twentieth century. The main result of the program is that Italian climate is becoming warmer and drier with an increase of both heavy precipitation events and long dry spells. Most of the observed signals appear to be due to changes in atmospheric circulation causing an increase in the frequency of subtropical anticyclones over the western Mediterranean basin. This hypothesis is also supported by the evolution of Italian total cloud amount in the 1951-1996 period.
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