%0 Journal Article %T EFFICIENCY OF GUMBEL ANALYSES FOR DETERMINING EXTREME DAILY PRECIPITATION IN SWITZERLAND %A J.M. FALLOT %J Aerul £żi Apa : Componente ale Mediului %D 2012 %I Cluj University Press %X Efficiency of gumbel analyses for determining extreme daily precipitation in Switzerland. Gumbel analyses were carried out on rainfall time-series at 151 locations in Switzerland for 4 different periods of 30 years in order to estimate daily extreme precipitation for a return period of 100 years. Those estimations were compared with maximal daily values measured during the last 100 years (1911-2010) to test the efficiency of these analyses. This comparison shows that these analyses provide good results for 50 to 60% locations in this country from rainfall time-series 1961-1990 and 1980-2010. On the other hand, daily precipitation with a return period of 100 years is underestimated at most locations from time-series 1931-1960 and especially 1911-1940. Such underestimation results from the increase of maximal daily precipitation recorded from 1911 to 2010 at 90% locations in Switzerland. %K extreme precipitation %K time-series %K statistical analyses %K Switzerland %U http://aerapa.conference.ubbcluj.ro/2012/pdf/01%20fallot.pdf