ABSTRACT:- Heavy rainfall with hydrological effect parameters in the upper basins of Crişul Alb and Crişul Negru rivers. The present paper analyze the rainfall parameters as regard its hydrologic effect in the upper reaches of Crisul Alb and Crisul Negru river basins. In this regard we present the duration and intensities of rainfall with the amount more or equal then ≥ 10mm, during the warm season, using data collected from five weather stations (Dumbravita de Codru, Holod, Stana de Vale, Stei and Gurahont). We indicate the parameters of torrential rainfall; we make a percentile analysis and the render the frequency, intensity and duration of rainfall hydrologically significant rainfall.
Key words: torrential rainfall parameters, hydrologic effect, upper reaches, Cris river basins.