scholarly journals Simulation of Flood in the Thach Han-Ben Hai River Basin (Vietnam) under the Influence of the Upstream Reservoir System

2021 ◽  
Vol 10 (6) ◽  
Author(s):  
Ngo Chi Tuan ◽  
Can Thu Van ◽  
Nguyen Huu Tuan ◽  
Nguyen Hai Au
Keyword(s):  
River Basin ◽  
Reservoir System ◽  
Upstream Reservoir

scholarly journals Towards an optimal integrated reservoir system management for the Awash River Basin, Ethiopia

2016 ◽  
Vol 373 ◽  
pp. 215-219 ◽  
Author(s):  
Ruben Müller ◽  
Henok Y. Gebretsadik ◽  
Niels Schütze
Keyword(s):  
Water Supply ◽  
River Basin ◽  
Socioeconomic Development ◽  
System Management ◽  
Hydro Power ◽  
Rule Curves ◽  
Reservoir System ◽  
Irrigation Projects ◽  
Awash River Basin ◽  
Performance Penalty

Abstract. Recently, the Kessem–Tendaho project is completed to bring about socioeconomic development and growth in the Awash River Basin, Ethiopia. To support reservoir Koka, two new reservoirs where built together with extensive infrastructure for new irrigation projects. For best possible socioeconomic benefits under conflicting management goals, like energy production at three hydropower stations and basin wide water supply at various sites, an integrated reservoir system management is required. To satisfy the multi-purpose nature of the reservoir system, multi-objective parameterization-simulation-optimization model is applied. Different Pareto-optimal trade-off solutions between water supply and hydro-power generation are provided for two scenarios (i) recent conditions and (ii) future planned increases for Tendaho and Upper Awash Irrigation projects. Reservoir performance is further assessed under (i) rule curves with a high degree of freedom – this allows for best performance, but may result in rules curves to variable for real word operation and (ii) smooth rule curves, obtained by artificial neuronal networks. The results show no performance penalty for smooth rule curves under future conditions but a notable penalty under recent conditions.

scholarly journals A novel causal structure-based framework for comparing basin-wide water-energy-food-ecology nexuses applied to the data-limited Amu Darya and Syr Darya river basins

2020 ◽  
Author(s):  
Haiyang Shi ◽  
Geping Luo ◽  
Hongwei Zheng ◽  
Chunbo Chen ◽  
Jie Bai ◽  
...  
Keyword(s):  
Soviet Union ◽  
River Basin ◽  
Agricultural Development ◽  
Causal Structure ◽  
Aral Sea ◽  
Amu Darya ◽  
The Soviet Union ◽  
Basin Scale ◽  
Upstream Reservoir ◽  
Syr Darya

Abstract. The previous comparative studies on watersheds were mostly based on the comparison of dispersive characteristics, which lacked systemicity and causality. We proposed a causal structure-based framework for basin comparison based on the Bayesian network (BN), and focus on the basin-scale water-energy-food-ecology (WEFE) nexuses. We applied it to the Syr Darya river basin (SDB) and the Amu Darya river basin (ADB) that caused the Aral Sea disaster. The causality of the nexuses was effectively compared and universality of this framework was discussed. In terms of changes of the nexuses, the sensitive factor for the water supplied to the Aral Sea changed from the agricultural development during the Soviet Union period to the disputes in the WEFE nexuses after the disintegration. The water-energy contradiction of SDB is more severe than that of ADB partly due to the higher upstream reservoir interception capacity. It further made management of the winter surplus water downstream of SDB more controversial. Due to this, the water-food-ecology conflict between downstream countries may escalate and turn into a long-term chronic problem. Reducing water inflow to depressions and improving the planting structure prove beneficial to the Aral Sea ecology and this effect of SDB is more significant. The construction of reservoirs on the Panj river of the upstream ADB should be cautious to avoid an intense water-energy conflict as SDB. It is also necessary to promote the water-saving drip irrigation and to strengthen the cooperation.

scholarly journals An Ecologically Oriented Operation Strategy for a Multi-Reservoir System: A Case Study of the Middle and Lower Han River Basin, China

Engineering ◽  
2018 ◽  
Vol 4 (5) ◽  
pp. 627-634 ◽  
Author(s):  
Hao Wang ◽  
Xiaohui Lei ◽  
Denghua Yan ◽  
Xu Wang ◽  
Shuyue Wu ◽  
...  
Keyword(s):  
River Basin ◽  
Operation Strategy ◽  
Han River ◽  
Reservoir System ◽  
System A ◽  
Han River Basin

A novel impoundment framework for a mega reservoir system in the upper Yangtze River basin

2022 ◽  
Vol 305 ◽  
pp. 117792
Author(s):  
Shaokun He ◽  
Shenglian Guo ◽  
Jiabo Yin ◽  
Zhen Liao ◽  
He Li ◽  
...  
Keyword(s):  
River Basin ◽  
Yangtze River ◽  
Yangtze River Basin ◽  
Reservoir System ◽  
Upper Yangtze River ◽  
The Upper Yangtze River

scholarly journals A novel causal structure-based framework for comparing a basin-wide water–energy–food–ecology nexus applied to the data-limited Amu Darya and Syr Darya river basins

2021 ◽  
Vol 25 (2) ◽  
pp. 901-925
Author(s):  
Haiyang Shi ◽  
Geping Luo ◽  
Hongwei Zheng ◽  
Chunbo Chen ◽  
Olaf Hellwich ◽  
...  
Keyword(s):  
Soviet Union ◽  
River Basin ◽  
Agricultural Development ◽  
Causal Structure ◽  
Aral Sea ◽  
Amu Darya ◽  
The Soviet Union ◽  
Basin Scale ◽  
Upstream Reservoir ◽  
Syr Darya

Abstract. The previous comparative studies on watersheds were mostly based on the comparison of dispersive characteristics, which lacked systemicity and causality. We proposed a causal structure-based framework for basin comparison based on the Bayesian network (BN) and focus on the basin-scale water–energy–food–ecology (WEFE) nexus. We applied it to the Syr Darya River basin (SDB) and the Amu Darya River basin (ADB), of which poor water management caused the Aral Sea disaster. The causality of the nexus was effectively compared and universality of this framework was discussed. In terms of changes in the nexus, the sensitive factor for the water supplied to the Aral Sea changed from the agricultural development during the Soviet Union period to the disputes in the WEFE nexus after the disintegration. The water–energy contradiction of the SDB is more severe than that of the ADB, partly due to the higher upstream reservoir interception capacity. It further made management of the winter surplus water downstream of the SDB more controversial. Due to this, the water–food–ecology conflict between downstream countries may escalate and turn into a long-term chronic problem. Reducing water inflow to depressions and improving the planting structure prove beneficial to the Aral Sea ecology, and this effect of the SDB is more significant. The construction of reservoirs on the Panj River of the upstream ADB should be cautious to avoid an intense water–energy conflict such as the SDB's. It is also necessary to promote the water-saving drip irrigation and to strengthen the cooperation.

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