This report represents the description of the first activity performed within the work package 7.1.6 of the "B action" in the Gemina project. The "B action" of the Gemina project concerns the consolidation and development of international scientific network. In particular the cooperation between...

Here the concept of return period is discussed in terms of the stationarity of the process. If the process is stationarity the concept of return period is well defined and ambiguities do not arise. If the process is non stationary, as it could be any climate driven phenomenon under climate...

Stochastic disaggregation model, based on coupling of the modified version of the Bartlett-Lewis Rectangular Pulse stochastic rainfall model and proportional adjusting procedure, is shown to disaggregate daily observed precipitation to hourly scale. Furthermore synthetic hourly time series are...