Characterization of the water flow regime of the rivers from the Căliman Mountains (1950-2010) based on the Pardé Coefficient.

The Pardé coefficient, first introduced by Maurice Pardé in 1933, is the most famous water regime classification system in the world, and can be calculated and adapted to any river on the globe, based only on the average flow of rivers. In the Căliman Mountains, an analysis of the river’s water flow regime has not been performed according to this coefficient so far, this work being the first of its kind. Following the completion of this paper, it was observed that the variation of climatic elements (precipitation and temperatures) in the period 1950-2010 influenced more the regime at a seasonal than at a year level. Changes were observed at the level of the season with the lowest runoff, at the stations from Someș River basin, changing in the analyzed period from winter to the beginning of the period, in autumn after the year 2000.