A statistical study of annual and seasonal discharges series for 15 Romanian rivers and the Danube River at Orsova exhibits a very important dry hydrological period which began around 1983. The winter discharge decreased 50% during this period and seems to be the main cause of this hydrological drought. The spatial distribution of this drought is defined in Central Romania. The analysis of the Danube discharge series demonstrates that an important part of its watershed is in the same situation.
Climatic evolution, hydrological drought, annual discharges, stationarity, Southern Europe.
Jean-Pierre Carbonnel, Université Pierre et Marie
1367, Case 123, 4 Place Jussieu.F-75252 Paris Cedex 05, FRANCE