MINIMUM DISCHARGE IN BAHLUI BASIN AND ASSOCIATED HYDROLOGIC RISKS
IONUŢ MINEA
ABSTRACT. – Minimum discharge in bahlui basin and associated hydrologic risks. The inventory and determination of the periods with reduced discharge was conducted based on the data from the main hydrometric stations in the basin, through the analysis of the mean daily discharge data from the 1950-2005 period. In relation with the climatic and hydrogeologic conditions, at the level of this hydrographic basin may be distinguished two large periods of reduced discharge. One is characteristic to the winter period, when water coming from rainfall is stored as snow and ice. The second occurs at the end of summer and the beginning of autumn, when the frequency of dry or drought periods is high, the values of evapotranspiration being very high, and the degree of water use for practical uses (irrigations) is quite increased. The analysis was made to show the importance of some statistical parameters (like minimum discharge, variation coefficient, square mean error etc) who hept us to determinate the frecquency of the depletion phenomena in this drainage basin.
Keywords: Bahlui drainage basin, minimum discharge, associated hydrological risks
FULL TEXT