The test zone (study area) is situated in the Crisul Alb - Crisul Negru - Double Koros basin (outlet at Mezobereny- Hosszufok) , crossing the Romanian - Hungarian border.



  In the study area the precipitation amount oscillates between 600 and 800 mm/year in the plain and plateau areas and in the mountain one, over than 1200 mm/year. In other areas of the country, the precipitation amount is smaller, so that in the plain area it registers on amount between 400 and 600 mm/year while in the mountain area it is between 1000 and 1200 mm/year. The western region of Romania registers the highest values of the multiannual precipitation. This distribution can be explained by the fact that humid air masses brought about by fronts from the Icelandic Low, frequently come in this area. The orography of the area (Apuseni Mountains) amplifies the precipitation on the western side of the mountain chain; so that the Crisuri Rivers Basin is frequently affected by large water amount in short time intervals. In the last years, the downpours registered a serious increase in this area. The frequency and importance of floods in the region require therefore work to reduce such damage, and better facilitate efficient monitoring by the organizations in charge of natural hazards, such as government agencies, civil protection authorities or municipalities. For the transboundary target area many flood events have occurred. These floods have been accompanied by severe inundation events provoked by dike rupture.