6533b85bfe1ef96bd12bbf9f
RESEARCH PRODUCT
Statistical analysis of inter-arrival times of rainfall events for Italian Sub-Alpine and Mediterranean areas
Stefano FerrarisL. MercalliCarmelo AgneseCarmelo CammalleriD. Cat BerroGiorgio Baiamontesubject
Mediterranean climateAtmospheric ScienceDistribution (economics)droughtlcsh:QC851-999MediterraneanSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-ForestaliDuration (project management)lcsh:ScienceSub-Alpinedrought; statistical distributions; trendbusiness.industryEcological ModelingSettore ICAR/02 - Costruzioni Idrauliche E Marittime E Idrologiastatistical distributionsPollutionlcsh:QC1-999Trend analysistrendGeophysicsGeographySample size determinationClimatologyProbability distributionlcsh:Qlcsh:Meteorology. Climatologyrainfall inter-arrival timeScale (map)businesslcsh:PhysicsQuantiledescription
Abstract. In this work a set of time-series of inter-arrival times of rainfall events, at daily scale, was analysed, with the aim to verify the issue of increasing duration of dry periods. The set consists of 12 time-series recorded at rain gauges in 1926–2005, six of them belong to an Italian Sub-Alpine area (Piedmont) and six to a Mediterranean one (Sicily). In order to overcome the problem related to limited sample size for high values of inter-arrival times, the discrete probability polylog-series distribution was used to fit the empirical data from partial (20 yr) time-series. Moreover, a simple qualitative trend analysis was applied to some high quantiles of inter-arrival times as well as to the average extent of rain clusters. The preliminary analysis seems to confirm the issue of increasing duration of dry periods for both environments, which is limited to the ''cold'' season.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-01-01 | Advances in Science and Research |