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Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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Volume 10, issue 1
Nat. Hazards Earth Syst. Sci., 10, 105–108, 2010
https://doi.org/10.5194/nhess-10-105-2010
© Author(s) 2010. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Advances in Mediterranean meteorology

Nat. Hazards Earth Syst. Sci., 10, 105–108, 2010
https://doi.org/10.5194/nhess-10-105-2010
© Author(s) 2010. This work is distributed under
the Creative Commons Attribution 3.0 License.

  18 Jan 2010

18 Jan 2010

Brief communication "Models for the exceedances of high thresholds over the precipitation daily totals in Athens, Greece"

G. Tzavelas1, A. G. Paliatsos2, and P. T. Nastos3 G. Tzavelas et al.
  • 1Department of Statistical and Insurance Science, University of Piraeus, Piraeus, Greece
  • 2General Department of Mathematics, Technological Education Institute of Piraeus, Athens, Greece
  • 3Laboratory of Climatology and Atmospheric Environment, Department of Geology and Geoenvironment, University of Athens, Athens, Greece

Abstract. Extreme precipitation events have significant environmental consequences because they may cause considerable damages to urban as well as rural areas. The aim of this work is to construct a threshold model which will describe the exceedances over a threshold for the daily precipitation totals over Athens, Greece. The data used are daily precipitation totals recorded at the National Observatory of Athens, for a 115-year period (1891–2005).

The generalized Pareto distribution is considered as the proper distribution for the study of the exceedances. The threshold of u=15.8 mm (10% upper limit) is used for the construction of the optimal return level function.

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