ABSTRACT. – Main hydrological statistical characteristics of low water and high water on the Tur/Túr stream. The Tur/Túr river network (1261 km2) is the secondary left bank tributary of Tisa. The catchment is shared by Romania (96%) and Hungary (4%). Daily streamflow data for the description of low flow conditions are available since 1961, namely 49 years long series for Negreşti-Oaş, Turulung (RO) and Garbolc (HU) consequently. Lower reaches of the river were considerable modified during the 19th and 20th century river training and flood protection works including the topology and geometry of channel network, while the hydrological regime of the upper hilly and undulating regions remained nearly natural until 1972. Discharge series until 1973 are or only slightly influenced, while the impact of reservoir Călineşti-Oaş the temporal distribution of runoff is felt after that period.
Key words: minimum and maximum discharge, low flow periods, high flow periods, hydrological statistical analysis, water uses, discharge values probabilities.