Jp1.15 Detected Trends in Extreme Temperature and Precipitation Indices in the Central/eastern European Region

Drought events in a particular region often occur in case of long-term lack of precipitation coinciding with hot weather. Global climate change implies increasing global mean temperature (IPCC, 2001), which may occur due to the increasing average and the modified frequency distribution of temperature values. The main objective of our research is to detect the possible changes of intensity and frequency of the extreme events associated with precipitation and temperature. In this paper, several climate extreme indices have been analysed and compared for the Carpathian Basin (located in Central/Eastern Europe) based on the guidelines suggested by the joint WMOCCl/CLIVAR Working Group on climate change detection (Karl et al., 1999; Peterson et al., 2002). One of the task groups of this Working Group aimed to identify the climate extreme indices and completed a climate extreme analysis on all part of the world where appropriate data was available (Frich et al., 2002). The next section of this paper presents the definition of the extreme climate indices. Similarly to the global and the European (Klein Tank and Können, 2003) analyses, 13 extreme temperature indices and 12 extreme precipitation indices are evaluated for the Carpathian Basin in Sections 3 and 4, respectively. Finally, Section 5 summarizes the main conclusions of the paper.