Characteristics and variation law of wind-blown sand delivered to the Ningxia–Inner Mongolia reach of the Yellow River under a changing environment

Yue, Zhichun; Yuan, Xiaochen; Cao, Lugan; Tian, Fuchang; Han, Chao; Zhang, Hongwu

doi:10.1016/j.ijsrc.2021.09.004

Cited by 7 publications

(8 citation statements)

References 23 publications

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“…(3) Sand originating from quicksand covering the riverbank alluvial plain is blown into the main stream by strong winds. These sediments comprising relatively coarse particle sizes are the main component of the sediment deposited in the Inner Mongolia River section [39,40].…”

Section: Amount Of Sand Entering the Inner Mongolia Reachmentioning

confidence: 99%

Hydrological Changes and Sediment Dynamics in the Inner Mongolia Section of the Yellow River: Implications for Reservoir Management

Xu,

Zhao,

Chen

et al. 2024

Water

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The Inner Mongolia section of the Yellow River is a primary alluvial segment of the main channel. The variations in water and sediment not only alter the cross-sectional morphology and flow capacity of the river but also impact the scheduling of upstream cascade reservoirs. Based on runoff and sediment load data and topographic information from typical hydrological stations, the characteristics of runoff and sediment load variations and the evolutionary pattern of siltation in the Inner Mongolia River section were analyzed via trend analysis methods, Mann–Kendall test methods, the sediment load transport rate method, and the water level–flow relationship. The results showed that the water and sediment loads at the hydrological stations in the Inner Mongolia River section significantly changed from the 1960s to after 2000, with runoff decreasing by approximately 22% to 32% and the sediment load decreasing by approximately 65% to 73%. Sedimentation in the river section generally increased, and the average annual siltation amount reached 0.144 billion t. The joint utilization of the Longyangxia and Liujiaxia reservoirs in 1987 was the main reason for the rapid increase in siltation, and siltation in the Inner Mongolia River section was slightly reduced after 2005. In addition, the critical sediment load coefficients of the Bayangaole–Sanhuhekou and Sanhuhekou–Toudaoguai River sections were 0.0073 and 0.0051 kg·s/m6, respectively, from 1952 to 1968, and 0.0053 and 0.0037 kg·s/m6, respectively, from 1969 to 2020. This study could provide technical support for river flood control and reservoir water sediment regulation in Inner Mongolia.

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Section: Amount Of Sand Entering the Inner Mongolia Reachmentioning

confidence: 99%

Hydrological Changes and Sediment Dynamics in the Inner Mongolia Section of the Yellow River: Implications for Reservoir Management

Xu,

Zhao,

Chen

et al. 2024

Water

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“…The left bank is bordered by the Ulan Buh Desert for 18 km above the dam site. The average annual windblown sand inflow is approximately 2 million tons [16]. The inflow hydrological station is located at Shizuishan, approximately 50 km upstream of the reservoir.…”

Section: Reservoir Overviewmentioning

confidence: 99%

Operational Mode for Water–Sediment Regulation in Plain-Type Sand-Laden Reservoirs: A Case Study of the Haibowan Reservoir

Liu,

Wang,

Liu

et al. 2024

Water

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Excessive sedimentation in sand-laden rivers significantly hinders the normal operation and overall effectiveness of reservoirs. This is observed particularly in plain-type sand-laden reservoirs where weak hydraulic conditions in the reservoir area contribute to sediment deposition. Water–sediment regulation is essential in reducing sedimentation and prolonging the lifespan of such reservoirs. Taking the plain-type reservoir of the primary stream of the Yellow River—Haibowan Reservoir as an example, based on a two-dimensional shallow water equation, a two-dimensional mathematical model of water and sediment in the reservoir area is established, the corresponding boundary conditions are improved, and the reliability of the model is verified. Under the premise of ensuring the flood control safety of the reservoir dam, considering the impact on the power generation of the reservoir and the downstream river, and maintaining the long-term large effective storage capacity of the reservoir as the basic principle, the water–sediment regulation scheme is proposed. A two-dimensional kinetic model of sediment transport and representative water–sediment series are employed to simulate the erosion and sedimentation processes in the reservoir under different schemes. The optimisation and comparison of multiple schemes reveal that the sediment-flushing scheme, which lowers the water level to 1072 m above sea level when the inflow discharge is 1500–2760 m3/s and inflow sediment concentration is 5–10 kg/m3, can yield an effective reservoir capacity of 97 million m3 and an average annual hydropower generation of 389.5 million kWh after 15 years of operation. This scheme outperforms the existing sediment-flushing scheme and is recommended as an optimised approach for water–sediment regulation in reservoirs. The results of this study provide technical support for the application of water–sediment regulation in the Haibowan Reservoir and may be useful in the exploration and management of water–sediment regulation for plain-type reservoirs on sand-laden rivers.

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“…High sand migration rates occur in the dune because 70% of the wind speed exceeds the threshold velocity for sediment. The climatic conditions are unique for this area [21], mainly due to the presence of a long shoreline (more than 40 kilometers) and a cove before reaching the dune. This stretch of shoreline is only interrupted when the lagoon of the Valle River connects with the sea during the great floods [20].…”

Section: Study Areamentioning

confidence: 99%

“…This stretch of shoreline is only interrupted when the lagoon of the Valle River connects with the sea during the great floods [20]. The wind-blown sediment is a well-graded material composed mainly of quartz, with an average sand size of 0.3 mm [21,22]. The chosen study area is the Valdevaqueros Dune because it experiences a displacement of up to 1 meter per day due to the eastern wind.…”

Section: Study Areamentioning

confidence: 99%

A Methodology to Design a Wind Transfer Function: Application to the Valdevaqueros Dune (SW Spain)

Martinez-Garcia

Muñoz-Pérez

Contreras

et al. 2023

JMSE

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In general, weather forecasting has been significantly developed at a large scale and, joined with statistical techniques, is used to predict at a local scale. However, there is no way to propagate winds between two nearby locations; this is a spatial transference, for example, for the waves. After studying coastal dunar systems affected by winds, we have proposed a way for the spatial propagation of wind for scales under 10 km. The proposed transference is based on local data, and it is developed in an easy and accurate way by different regression methods and the wind profile theory. The aim of this article is to establish a methodology for achieving a wind transfer function for local applications. For this purpose, we analyzed and compared data from a field experiment and from a nearby weather station. A combination of the wind profile and statistical downscaling technique formed the basis of this research, which leads to transfer equations for wind speeds and directions. To clarify the procedure, the proposed methodology was applied to the Valdevaqueros Coastal Dune in order to develop a transfer function using time series data from a nearby meteorological station located in Tarifa.

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Characteristics and variation law of wind-blown sand delivered to the Ningxia–Inner Mongolia reach of the Yellow River under a changing environment

Cited by 7 publications

References 23 publications

Hydrological Changes and Sediment Dynamics in the Inner Mongolia Section of the Yellow River: Implications for Reservoir Management

Hydrological Changes and Sediment Dynamics in the Inner Mongolia Section of the Yellow River: Implications for Reservoir Management

Operational Mode for Water–Sediment Regulation in Plain-Type Sand-Laden Reservoirs: A Case Study of the Haibowan Reservoir

A Methodology to Design a Wind Transfer Function: Application to the Valdevaqueros Dune (SW Spain)

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