Trends of the Daily Intensity of Precipitation in Italy and Teleconnections

Changes in daily precipitation frequency and distribution are studied by analyzing a daily precipitation data set covering the last 120 years for Italy. Data were homogenized on daily basis and completed by means of statistical methods. The following parameters were analyzed for each station record and averaged into some regional series for a synthetic description of the results: seasonal and yearly total precipitation, number of wet days, precipitation intensity and proportion and frequency of daily rainfall amounts, belonging to 6 precipitation class-intervals, defined on the basis of some percentiles of the precipitation distribution.