tailieunhanh - Báo cáo " Long-term sediment distribution calculation taking into account sea level rise and the development of Day estuary "

The deposition in Day estuary tends to increase strongly due to abundant sources of sediment from the Red River system and the estuary is located in a concave coast where strong impacts of wave are eliminated. In this study, MIKE model developed by Danish Hydraulic Institute is employed to simulate, evaluate and forecast hydrodynamic regime as well as erosion, sedimentation and shoreline change processes in Day river mouth located in Ninh Binh. | VNU Journal of Science Natural Sciences and Technology 28 No. 3S 2012 57-62 Long-term sediment distribution calculation taking into account sea level rise and the development of Day estuary Nguyen Xuan Hien1 Duong Ngoc Tien1 Le Quoc Huy1 Nguyen Tho Sao2 1 Vietnam Institute of Meteorology Hydrology and Environment 2VNU University of Science 334 Nguyen Trai Hanoi Vietnam Received 15 July 2012 Abstract. The deposition in Day estuary tends to increase strongly due to abundant sources of sediment from the Red River system and the estuary is located in a concave coast where strong impacts of wave are eliminated. In this study MIKE model developed by Danish Hydraulic Institute is employed to simulate evaluate and forecast hydrodynamic regime as well as erosion sedimentation and shoreline change processes in Day river mouth located in Ninh Binh. Keywords Sediment transport Red river Day estuary MIKE model. 1. Introduction Red River is the largest river of northern Vietnam. Sediment conveyed by this river is the vital source to enrich Red River Delta. Three main rivers that play key role in sediment transport in the system are Red Ninh Co and Day. The process of dynamic interactions between rivers and sea causes the deposition and erosion in coastal areas. River mouth of Day situated in Ninh Binh province has significant changes in the alluvial deposition with a rapid rate. This on the one hand can enlarge natural land it also affects hydrodynamic regime and flood drainage capacity on the other. Moreover the phenomenon of sea level rise has been causing great impacts on Vietnam in Corresponding author. Tel 84-4-38584945. E-mail saont@ general and Ninh Binh province in particular. Sea level rise could lead to huge consequences for livelihoods and welfare of residents in these areas valuable lands could also be lost. Shellfish pools may be removed and the coastal fisheries could disappear. The temporal mangrove areas surrounding these pools may be affected and no .

• Báo cáo khoa học
• Day estuary
• Hydrometeorology
• climate research
• hydrologic calculations
• oceanography
• hydrology reports