Regional analysis of sub-hourly rainfall in Calabria by means of the Partial Duration Series approach

In this paper a regional estimation frequency of rainfall Intensity-Duration functionsis presented based on the partial duration series approach in which all the events above a certain threshold level are modelled. A 5-minute rainfall database is available in Calabria consisting of more than 152,000 rainfall events, (a rainly period preceded and followed by at least 6 h of dry weather). In this work 23 rain gauges with at least 10 yearso of completerecords have been selected and analysed. maximum intensity in 5, 10,15,20 30, 60 minutes, for each rainfall event, is the analysed hidrological variable. (omissis)