The Mediterranean region is an area potentially vulnerable to climatic changes. In fact, it is characterized by a significant precipitation variability resulting from synoptic dynamics of hazardous events moving and evolving along the Mediterranean basin. In this paper, the results of an investigation on rainfall trend in the Sardinia region are presented. The trend analysis has been performed by means of the Mann-Kendall test and of the Theil-Sen estimator applied on annual, seasonal, and monthly scales. To this aim, a monthly database of precipitation registered at 158 rain gauges, with an average observation of 84years, was used for the analyses. The results mainly evidenced a rainfall amount reduction in the winter months and an increase during the summer months. The monthly rainfall distribution throughout the year was also investigated by means of the precipitation concentration index (PCI). A negative trend emerged and, more specifically, a tendency towards a more uniform rainfall distribution on the Sardinia region throughout the year.
1.Natl Res Council Italy, Inst Agr & Forest Syst Mediterranean CNR ISAFOM, Arcavacata Di Rende, CS, Italy 2.Natl Res Council Italy, Res Inst Geohydrol Protect CNR IRPI, Arcavacata Di Rende, CS, Italy 3.Univ Calabria, Dept Civil Engn DINCI, Arcavacata Di Rende, CS, Italy
Recommended Citation:
Caloiero, T.,Coscarelli, R.,Gaudio, R.,et al. Precipitation trend and concentration in the Sardinia region[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2019-01-01,137(1-2):297-307