Morphological changes in the red river delta, impacts and solutions
19/08/2021The Red River plays a particularly important role in the development of Vietnam. In the past 30 years, there have been serious changes in the morphology of the Red River. As a result, it has caused many negative impacts on production, the environment and life in the downstream areas of the river. This paper presents analyses on both subjective and objective causes that lead to these serious morphological changes. It helps to propose a comprehensive solution for establishment of a water regulating system on the Red River to ensure water security and environmental protection for the downstream areas of the river.
1. BACKGROUND
2. METHODOLOGY AND DATA
3. DATA ANALYSIS AND DISCUSSION
Sediment depletion
Sand exploitation
Morphological changes
Changes in streamflow regime
Impacts on irrigation schemes
Impacts on dyke protection and saline intrusion structures in coastal areas
Impacts on waterway navigation and environment
4. INTERMEDIATE SOLUTIONS
5. CONCLUSION AND REMARK
ACKNOWLEDGEMENTS
REFERENCES
Dinh, P. (2012). National Independent Research Project (code DTDL.2012-T/27) for “Study on the impact of sand exploitation on flow regime, morphological change and propose scientific solutions for management, planning on sand exploitation in Hong-Thai Binh River System"
Dinh, P. and Cuong, H.V. (2014). Development of empirical formula for calculating total sediment transport and river morphology relationship during 2009-2012, Journal of Science and Technology for Water Resources 23 (10-2014), Vietnam Academy for Water Resources.
Institute for Water Resources Planning (2012). Water Resources Master Plan Study for Red River Delta in climate change conditions and sea level rise.
Hoa, T.D., Hung, N.T., Cuong, B.C., Linh, N.M., Son, L.V., Giang, P.H., Du, T.D., Dung, N.T.K., Luu, D.K., Mai, P.T. (2018). National Independent Research Project (code DTDL.CN-58/15) for “Study on comprehensive solutions of weirs to cope with the situation of lowering the water level, ensuring water security for the Red River Delta".
See detail: Morphological changes in the red river delta, impacts and solutions
T.D Hoa1, D.H Nam2 and H.V Cuong3
1Vietnam Academy for Water Resources, Hanoi 116830, Vietnam; tranhoa08@gmail.com
2Hydraulic Construction Institute, Vietnam Academy for Water Resources, Hanoi 116830, Vietnam; namdh@vawr.org.vn
3The Key Laboratory of River and Coastal Engineering, Vietnam Academy for Water Resources, Hanoi 116830, Vietnam;
E-mail: hovietcuong@vawr.org.vn
Proceedings of the 10th International Conference on Asian and Pacific Coasts
(APAC 2019) Hanoi, Vietnam, September 25-28, 2019
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