Statistical analysis of inter-arrival times of rainfall events for Italian Sub-Alpine and Mediterranean areas

Other literature type, Article English OPEN
C. Agnese ; G. Baiamonte ; C. Cammalleri ; D. Cat Berro ; S. Ferraris ; L. Mercalli (2012)
  • Publisher: Copernicus Publications
  • Journal: Advances in Science and Research (issn: 1992-0628, eissn: 1992-0636)
  • Related identifiers: doi: 10.5194/asr-8-171-2012
  • Subject: Meteorology. Climatology | QC851-999 | Q | Science | Physics | QC1-999

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.
  • References (12)
    12 references, page 1 of 2

    Alpert, P., Ben-Gai, T., Baharad, A., Benjamin, J., Yekutieli, D., Colacino, M., Diodato, L., Ramis, C., Homar, V., Romero, R., Michaelides, S., and Manes, A.: The paradoxical increase of Mediterranean extreme daily rainfall in spite of decrease in total values, Geophys. Res. Lett., 29, 1536, doi:10.1029/2001GL013554, 2002.

    Buishand, T. A.: Some remarks on the use of daily rainfall models, J. Hydrol., 36, 295-308, doi:10.1016/0022-1694(78)90150- 6, 1978.

    Chatfield, C.: Wet and dry spells, Weather, 21, 308-310, 1966.

    Dai, A., Trenberth, K. E., and Karl, T. R.: Global variations in droughts and wet spells: 1900-1995, Geophys. Res. Lett., 25, 3367-3370, doi:10.1029/98GL52511, 1998.

    Feller, W.: An Introduction to probability theory and its applications, Vol. 1, J. W. A. Sons, New York, USA, 1968.

    Foufoula-Georgiou, E. and Lettenmaier, D. P.: A Markov renewal model for rainfall occurrences, Water Resour. Res., 23, 875-884, doi:10.1029/WR023i005p00875, 1987.

    Gupta, P. L., Gupta, R. C., S.-huat Ong, S.-H., and Srivastava, H. M.: A class of Hurwitz-Lerch Zeta distributions and their applications in reliability, App. Math. Comp., 196, 521-531, doi:10.1016/j.amc.2007.06.012, 2008.

    Kottegoda, N. T. and Rosso, R.: Statistics, probability, and reliability for civil and environmental engineers, McGraw-Hill, 1997.

    Mart´ınez-Rodr´ıguez, A. M., Sa´ez-Castillo, A. J., and Conde-Sa´nchez, A.: Modelling using an extended Yule distribution, Comput. Stat. Data An., 55, 863-873, doi:10.1016/j.csda.2010.07.014, 2011.

    Spierdijk, L. and Voorneveld, M.: Superstars without talent? The Yule distribution controversy, SSE/EFI Working Paper Series in Economics and Finance, No. 658, 56199, 2007.

  • Metrics
    No metrics available
Share - Bookmark