Advances in Geosciences www.adv-geosci.net 1680-7340 1680-7359 6 1st Alexander von Humboldt International Conference 2006 10.5194/adgeo-6-133-2006 http://www.adv-geosci.net/6/133/2006/ http://www.adv-geosci.net/6/133/2006/adgeo-6-133-2006.html http://www.adv-geosci.net/6/133/2006/adgeo-6-133-2006.pdf 133 137 2006-01-26 Regional effects of ENSO in Central/Eastern Europe J. Bartholy R. Pongrácz Dept. of Meteorology, Eötvös Loránd University, Pázmány st. 1/a., Budapest, H-1117, Hungary El Niño - Southern Oscillation (ENSO) effects on the European circulation features and on the regional climate of Hungary are evaluated in this paper. European climate is represented by atmospheric macrocirculation patterns (MCPs). Local climate characteristics are linked to ENSO phases through regionally averaged temperature values and precipitation amounts. Significant statistical relationship was found between the European circulation and the ENSO phases. Furthermore, considerable differences were detected in the empirical frequency distribution of monthly climate anomalies in Hungary during El Niño and La Niña episodes.