Séverine Chevalier¹, Olivier Beauchard², Luc Vandenbulcke¹, Adrian Teaca³, Tatiana Begun³, Valentina Todorova⁴, Karline Soetaert² and Marilaure Grégoire¹, (1)University of Liège, MAST (Modeling for Aquatic Systems), Liège, Belgium, (2)Royal Netherlands Institute for Sea Research (NIOZ), Department of Estuarine and Delta Systems, Yerseke, Netherlands, (3)National Research and Development Institute for Marine Geology and Geoecology, Bucharest, Romania, (4)Institute of oceanology - Bulgarian Academy of Sciences (IO-BAS), Varna, Bulgaria