Sedimentation of the Nurek reservoir

Sherman, Stacy; Rafikov, V. A.

doi:10.1007/bf01665656

Cited by 2 publications

(3 citation statements)

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“…Estimates of the relative proportion of runoff generation coming from Tajikistan vary widely according to the literature (e.g. Sherman and Rafikov 1991, Giese et al 2004, Schmidt et al 2006. In this paper, we retain the values of Giese et al, who reported an annual mean discharge of 20.0 km 3 year -1 for the Vakhsh River and a mean discharge of 34.3 km 3 year -1 for the Pyandj River.…”

Section: Geographical Settingmentioning

confidence: 68%

River flow regime and snow cover of the Pamir Alay (Central Asia) in a changing climate

Chevallier

Pouyaud

Mojaisky³

et al. 2014

Hydrological Sciences Journal

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The Vakhsh and Pyandj rivers, main tributaries of the Amu Darya River in the mountainous region of the Pamir Alay, play an important role in the water resources of the Aral Sea basin (Central Asia). In this region, the glaciers and snow cover significantly influence the water cycle and flow regime, which could be strongly modified by climate change. The present study, part of a project funded by the European Commission, analyses the hydrological situation in six benchmark basins covering areas of between 1800 and 8400 km 2 , essentially located in Tajikistan, with a variety of topographical situations, precipitation amounts and glacierized areas. Four types of parameter are discussed: temperature, glaciation, snow cover and river flows. The study is based mainly on a long-time series that ended in the 1990s (with the collapse of the Soviet Union) and on field observations and data collection. In addition, a short, more recent period (May 2000 to May 2002) was examined to better understand the role of snow cover, using scarce monitored data and satellite information. The results confirm the overall homogeneous trend of temperature increase in the mountain range and its impacts on the surface water regime. Concerning the snow cover, significant differences are noted in the location, elevation, orientation and morphology of snow cover in the respective basins. The changes in the river flow regime are regulated by the combination of the snow cover dynamics and the increasing trend of the air temperature.

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Section: Geographical Settingmentioning

confidence: 68%

River flow regime and snow cover of the Pamir Alay (Central Asia) in a changing climate

Chevallier

Pouyaud

Mojaisky³

et al. 2014

Hydrological Sciences Journal

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“…Its reservoir, with a design capacity of 10.5 km³, is the largest reservoir in Tajikistan. It is over 70 km long, with a surface area of over 98 km² and a maximum depth of 220 m (Sherman and Rafikov, 1992). The reservoir bottom has a design level of around 680/690 m above sea level (a.s.l.…”

Section: Upstream Damsmentioning

confidence: 99%

“…The operation of the Nurek reservoir is characterized by water level variations between the maximum operating level of 910 m (a.s.l) and minimum operating level of 857 m (a.s.l.). Within this range, the active regulation storage of the conservation pool is 4.5 km³, providing seasonal stream flow regulation of the Vakhsh River (Sherman and Rafikov, 1992), while in total the inactive/dead storage between the water levels of 680 m and 857 m (a.s.l.) amounts to 4.0 km³, according to the design capacity.…”

Section: Upstream Damsmentioning

confidence: 99%

The Role Of The Amu Darya Dams And Reservoirs In Future Water Supply In The Amu Darya Basin

Olsson¹,

Bauer²,

Ikramova

et al.

Environmental Problems of Central Asia and Their Economic, Social and Security Impacts

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Central Asia still remains as an area of substantial water stress problems caused by climate change, over-consumption of water resources and soil salinization. The rapid recession of glaciers along with a concurrent increasing frequency and intensity of extreme droughts has led to a progressive reduction of the already scarce resources. As in many other arid and semi-arid zones, surface waters in Central Asia are heavily regulated by extended river-reservoir systems, which affect both the quantity and the quality of water. The large dams and reservoirs of the Amu Darya basin should not only be a matter of international dispute, but also considered as an option to adapt to climate and global change and to the future water shortage in the region. With the Nurek and Rogun dams in the upstream part of the Amu Darya basin and the downstream dam system, the Tuyamuyun Hydroengineering Complex (THC), the region already has a high potential for improving the future water supply by adapting the management of the dams according to site specifications. The main scope of this study is to introduce this potential as an applicable instrument for implementing a sustainable water management strategy in the Amu Darya ______ *

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Sedimentation of the Nurek reservoir

Cited by 2 publications

References 0 publications

River flow regime and snow cover of the Pamir Alay (Central Asia) in a changing climate

River flow regime and snow cover of the Pamir Alay (Central Asia) in a changing climate

The Role Of The Amu Darya Dams And Reservoirs In Future Water Supply In The Amu Darya Basin

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