EXTREME HYDRO-METEOROLOGICAL PHENOMENA ON THE HYDROGRAPHICAL BASIN OF TIMI RIVER (1965-2009)

Extreme hydro-meteorological phenomena on the hydrographical basin of Timi river (1965-2009). The study of extreme hydro-meteorological phenomena or of the climatic and hydrological risks involve a wide range of issues, which should start with the climatic and hydrological data and should end with the monitoring of the risk factors, in order to pass from the diagnosis analysis to the prognosis one. We intended to draw up such a comprehensive study as well because it combines the classical methodology (field research, deductive, inductive, historical methods) with the specific methodology of the Geographical Informational Systems (G.I.S.). To analyse the hydro-meteorological phenomena on the basin, we used the climatic and hydrological data collected on the field from 6 meteorological stations and from 5 hydrometric stations, during a common period of 45 years (1965-2009). The extreme hydro-meteorological phenomena which were identified on the basin and which were analysed in the study herein are: the extreme temperatures, the periods with pluviometric surplus, the heavy rains, the drought and dryness phenomena, as well as the floods.