Possible impacts of a changing climate on intense Ligurian Sea rainfall events

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Gallus, William
Parodi, Antonio
Maugeri, Maurizio
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Gallus, William
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Geological and Atmospheric Sciences

The Department of Geological and Atmospheric Sciences offers majors in three areas: Geology (traditional, environmental, or hydrogeology, for work as a surveyor or in mineral exploration), Meteorology (studies in global atmosphere, weather technology, and modeling for work as a meteorologist), and Earth Sciences (interdisciplinary mixture of geology, meteorology, and other natural sciences, with option of teacher-licensure).

The Department of Geology and Mining was founded in 1898. In 1902 its name changed to the Department of Geology. In 1965 its name changed to the Department of Earth Science. In 1977 its name changed to the Department of Earth Sciences. In 1989 its name changed to the Department of Geological and Atmospheric Sciences.

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  • Department of Geology and Mining (1898-1902)
  • Department of Geology (1902-1965)
  • Department of Earth Science (1965-1977)
  • Department of Earth Sciences (1977-1989)

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Geological and Atmospheric Sciences

The region near the Ligurian Sea in northwestern Italy occasionally experiences extreme rainfall events that can lead to catastrophic flooding. These events are often caused by back‐building mesoscale convective systems whose occurrence peaks during the autumn. Rapid warming of the Mediterranean Sea in recent decades has raised concerns that the warmer water may change the frequency or intensity of these rainfall events. To gain insight into possible impacts of the warming climate, surface wind and precipitation output from 12‐km horizontal grid spacing EXPRESS‐Hydro simulations of past and future climate are used to examine trends in the frequency of strong convergence and heavy rainfall events during both the past and the future climate. Strong convergence events are not found to increase in frequency in the future climate, but the rainfall associated with these events does increase. The area that experiences rainfall above a specified threshold along with the duration over which such conditions are experienced increases, especially during the autumn when increases are statistically significant. Peak 3‐hourly rainfall at a grid point does not increase in the future climate but total rain volume associated with these events does, reflecting the larger areal coverage and duration of the events.


This is the peer-reviewed version of the following article: Gallus Jr, William A., Antonio Parodi, and Maurizio Maugeri. "Possible impacts of a changing climate on intense Ligurian Sea rainfall events." International Journal of Climatology 38 (2018): e323-e329, which has been published in final form at DOI: 10.1002/joc.5372. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. Posted with permission.

Sun Jan 01 00:00:00 UTC 2017