HAZARDS, VULNERABILITY AND ASSOCIATED HYDROLOGICAL RISKS IN THE HYDROGRAPHICAL BASIN OF THE RIVER UZ, TRIBUTARY OF THE RIVER TROTUŞ

As a consequence of the climatic change that has occurred in the last decade, the number of occurrences of extreme phenomena, follows an increasing trend with material and human casualties. The prevention of flash floods requires the complex and paramount importance action of responsible agencies. The river Uz is one of the most important tributaries of the Trotuş River; its basin has a high density hydrographical network. Using the data from the Basin Water Administration, Siret – Bacău, it has been possible to establish the flash floods’ occurrence frequency, as well as their tendencies. Based on this information, the hazard maps were drawn together with the risk and vulnerability involved, thus fulfilling the objectives of the study; it substantiates that the flood risks increases in proportion with the decrease in altitude of the landscape, the densely populated zones are especially vulnerable