Trends of extreme precipitation events in Dobrudja

Abstract

This work presents some results on the trend of climate extreme indices, computed by RClimdex 1.9.0, for a part of the region of Dobrudja (Romania). The database contains the daily precipitation series, collected at two meteorological stations (Sulina and Tulcea), in the period 1953 - 2008, respectively 1961 - 2005. Kendall’s tau based slope estimator has been used to compute the indices’ trends. Statistical tests come to infirm the hypothesis of a linear trend existence for Tulcea series, but confirm its existence for 6 precipitation indices associated to Sulina series. We notice a light trend of increasing of number of days with precipitation over 10, 20, 25 mm for the last series.