Hòa bình dam

Impact of the Hoa Binch dam (Vietnam) on water and sediment budgets in the Red River basin & delta V. D. Vinh1, S. Ouillon2,3, T. D. Thanh1, and L. V. Chu4 V. D. Vinh et al. V. D. Vinh1, S. Ouillon2,3, T. D. Thanh1, & L. V. Chu4


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1Institute of Marine Environment và Resources, VAST, 246 Danang Street, Haiphong, Vietphái mạnh 2IRD, Universixẻ de Toulouse, UPS (OMP), UMR5566 – LEGOS, 14 av. Edouard Belin, 31400 Toulouse, France 3University of Science & Technology of Hanoi (USTH), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam giới 4Vietnam Institute of Meteorology, Hydrology và Environment, 62 Nguyen Chi Tkhô hanh, Hanoi, Vietnam
1Institute of Marine Environment and Resources, VAST, 246 Danang Street, Haiphong, Vietphái nam 2IRD, Universingã de Toulouse, UPS (OMP), UMR5566 – LEGOS, 14 av. Edouard Belin, 31400 Toulouse, France 3University of Science và Technology of Hanoi (USTH), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam 4Vietnam giới Institute of Meteorology, Hydrology and Environment, 62 Nguyen Chi Tkhô nóng, Hanoi, Vietphái mạnh Hide author details
Received: 25 Nov 2013 – Discussion started: 10 Jan 2014 – Revised: 10 Sep năm trước – Accepted: 10 Sep 2014 – Published: 10 Oct 2014

Abstract. The Hoa Binh dam (HBD), located on a tributary of the Red River in Vietnam, has a capacity of 9.45 × 109 m3 và was commissioned in December 1988. Although it is important for flood prevention, electrithành phố production and irrigation in northern Vietphái mạnh, the Hoa Binh dam has also highly influenced the suspended sediment distribution in the lower Red River basin, in the delta và in the coastal zone. Its impact was analysed from a 50-year data phối of water discharge & suspended sediment concentration (1960–2010), và the distribution of water & sediment across the nine mouths of the delta was simulated using the MIKE11 numerical mã sản phẩm before & after the dam settlement. Although water discharge at the delta inlet decreased by only 9%, the yearly suspended sediment flux dropped, on average, by 61% at Son Tay near Hanoi (from 119 lớn 46 × 106 t yr−1). Along the coast, reduced sedimentation rates are coincident with the lower sediment delivery observed since the impoundment of the Hoa Binh dam. Water regulation has led khổng lồ decreased water discharge in the wet season (−14% in the Red River at Son Tay) and increased water discharge in the dry season (+12% at the same station). The ratgame ios of water & suspended sediment flows, as compared to lớn the total flows in the nine mouths, increased in the northern và southern estuaries and decreased in the central, main Ba Lat mouth. The increasing volume of dredged sediments in the Haiphong harbour is evidence of the silting up of the northern estuary of Cam–Bach Dang. The effect of tidal pumping on enhanced flow occurring in the dry season & resulting from changed water regulation is discussed as a possible cause of the enhanced siltation of the estuary after Hoa Binh dam impoundment.


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How khổng lồ cite. Vinch, V. D., Ouillon, S., Thanh khô, T. D., và Chu, L. V.: Impact of the Hoa Binch dam (Vietnam) on water và sediment budgets in the Red River basin and delta, Hydrol. Earth Syst. Sci., 18, 3987–4005, https://doi.org/10.5194/channeljc.com-18-3987-2014, năm trước.

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