Advances in Geosciences www.adv-geosci.net 1680-7340 1680-7359 14 2nd EGU Alexander von Humboldt Conference "The role of Geophysics in Natural Disaster Prevention" 2008 10.5194/adgeo-14-251-2008 http://www.adv-geosci.net/14/251/2008/ http://www.adv-geosci.net/14/251/2008/adgeo-14-251-2008.html http://www.adv-geosci.net/14/251/2008/adgeo-14-251-2008.pdf 251 255 2008-04-10 Extreme precipitation events in the Czech Republic in the context of climate change V. Květoň M. Žák michal.zak@chmi.cz Czech Hydrometeorological Institute, Prague, Czech Republic Department of Meteorology and Environment Protection, Fakulty of Mathematics and Physics, Charles University, Prague, Czech Republic As an introduction, short survey of two analyses of long-term fluctuations of annual precipitation totals in the Czech Republic is presented. The main focus of this paper is to contribute to investigation of precipitation trends in the Czech Republic by another point of view. For every pixel of 1 km² size, annual maxima of daily precipitation were obtained for time period of 112 years (1895–2006). Based on these time series, we were trying to answer question if there are some changes of area size/distribution of annual maximum of daily precipitation totals. Courses and trends are analyzed for some parameters of area distribution of annual maximum of daily precipitation totals in the area of the Czech Republic. No significant climate changes of tested precipitation characteristics were found. Auer, I., Böhm, R., Jurkovi, A., et al.: A new instrumental precipitation dataset for the greater Alpine region for the period 1800–2002, Int. J. Climatol., 25, 139–166, 2005. Auer I., Böhm, R., Jurkovic, A., et al.: HISTALP – historical instrumental climatological surface time series of the Greater Alpine Region, Int. J. Climatol., 27, 17–46, 2007. Climate Atlas of Czechia, 1. issue, Czech Hydrometeorological Institute Prague and University of Palack\'y Olomouc, 2007. Faulkner, D.: Flood estimation handbook, Volume 2, Rainfall frequency estimation, Institute of hydrology, Wallingford, 1999. Květoň, V., Rett, T., and Rybák, M.: Experiences with GIS applications to Climate Datasets in the Czech Hydrometeorological Institute, in: Proc. 2th ECAC – Extended abstracts, Pisa, CD-Rom, 2000. Květoň, V. and Žák, M.: Experience regarding homogenisation of temperature time series in the Czech Republic for period 1961–2000, Fourth seminar for homogenization and quality control in climatological databases, Budapest 2003, WMO, WCDMP-No. 56, 135–142, 2004. Pretel, J.: Climate change 2007: New IPCC Assessment Report the Physical Science Basis, Meteorological Bulletin, 60, 33–36, 2007 (in Czech). Szentimrey, T.: Statistical procedure for joint homogenisation of climatic time series, in: Proceedings of the First seminar of homogenisation of surface climatological data, Budapest, Hungary, 6–12 October 1996, 47–62, 1996. Szentimrey, T.: Multiple Analysis of Series for Homogenisation (MASH), in: Proceedings of the Second seminar of homogenisation of Surface climatological data, Budapest, Hungary, WM., WCDMP-No. 41, 27–46, 1999. Szentimrey, T.: Something like an Introduction, Fourth Seminar for Homogenisation and Quality Control in Climatological Databases, Budapest, Hungary, 2003. \vSercl, P., Květoň, V., and Stehlík, M.: Verification of methods of deriving of hydrological bases for safety officiating of water reservoirs during floods, Final report of project No QD1368 for 2001–2003 – part V01, Czech Hydrometeorological Institute Prague, 2004 (in Czech). World Meteorological Organization: Guidance on Metadata and homogenization, WCDMP-No. 53, WMO-TD No. 1186, 1045, WMO, Geneva, 2004.