期刊名称:Journal of Environmental Hydrology (ältere Jahrgänge)
印刷版ISSN:1058-3912
电子版ISSN:1996-7918
出版年度:2008
卷号:16
出版社:IAEH
摘要:Depuis l�ouverture du Canal de Vridi, l�exutoire naturel de la lagune Ebri� et celui du Como� � Bassam, ne peut plus se maintenir ouverte de fa�on permanente. En effet, l�activit� hydrodynamique cr��e par la mar�e est devenue d�s lors insuffisante pour maintenir permanents ces deux d�bouch�s en mer. Dans cette �tude, l�exutoire du Como� � Bassam a �t� ouvert par simulation num�rique de TELEMAC-2D. Durant ces simulations, la baisse de la quantit� de masses d�eau s�observe � Bassam. Par contre, on a un accroissement � Vridi. Le volume de masses d�eau et la puissance de chasse restent faibles � l�exutoire de Bassam. L�effet de chasse est tr�s significatif et les courants de jusant sont plus importants.Since the opening of the Vridi Canal, the natural outlet of the Ebri� lagoon, and that of the Como� River at Bassam, is no longer permanently open. In effect, the hydrodynamic activity created by the tide has become insufficient to flush and maintain two permanent openings to the sea. In this study, numerical simulation using TELEMAC-2D was used to model the outlet of the Como� River at Bassam. During these simulations, a decrease in the amount of water was observed at Bassam. Conversely, there was an increase at Vridi. The volume of water bodies and the ability to flush the outlets remains low at the outlet of Bassam. The effect of flushing is very significant and tidal ebb currents are more important.