1. Institute of Earth Sciences , The Hebrew University of Jerusalem , Givat Ram Campus, 91904 Jerusalem , Israel .
2. Institute of Environmental Sciences, Soil Protection and Recultivation , Brandenburg University of Technology Cottbus-Senftenberg , Konrad-Wachsmann-Allee 6, 03046 Cottbus , Germany .
3. Institute of Hydrology , Slovak Academy of Sciences , Dúbravská cesta 9, 84104 Bratislava , Slovakia .