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Characteristics of wind-sand transportation along railways in the eastern fringe of the Taklimakan Desert and sand control system

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Transportation Safety and environment 2024年第3期6卷 152-166页

作者： Hongguang Dong Jianjun Cheng Benteng Ma Yupeng Li Yuanqing Chen College of Water Conservancy&Architectural Engineering Shihezi UniversityShihezi 832003Xinjiang Uygur Autonomous RegionChina

This paper focuses on the Korla-Ruoqiang desert railway line,utilizing ERAS(ERA5 is the fifth generation of ECMWF(European Centre for Medium-Range Weather Forecasts)atmospheric reanalysis global climate data)wind data to conduct a comprehensive analysis of the wind energy environment along the line in all aspects,reveals the characteristics of wind-sand transport,and puts forward the countermeasures to prevent and control wind-sand *** results of the study indicate that:(1)the wind-sand along the line mainly occurs in the spring and summer seasons,and the dominant sand-moving directions are easterly(ENE,E and NNE)and northeasterly(NE).(2)The average annual sand-moving wind speed ranges from 5.80 m/s to 7.25 m/s,and the annual frequency of sand-moving ranges from 11.99%to 37.26%.(3)The annual sand drift potential(DP)along the line ranges from 69.20 VU to 607.24 VU,with three types of wind energy environments:low,medium and *** resultant drift potential(RDP)ranges from 45.52 VU to 547.49 VU,and the wind variability index(RDP/DP)is between 0.54 and 0.90.(4)The average sand transport quantity along the line ranges from 2.92 m^(3)/m/a to 9.09 m3/m/*** on these results,we optimize the sand blocking,sand fixing and wind erosion prevention measures for different types of wind-sand environments,establish a scientific and efficient wind-sand protection and control system to solve the wind-sand problems and provide a scientific foundation for the prevention and control of wind-sand disasters along the line.

关键词： desert railway wind energy environment sand-moving speed sand transport activities sand control system

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wind regimes and associated sand dune types in the hinterland of the Badain Jaran Desert,China

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Journal of Arid Land 2022年第5期14卷 473-489页

作者： MENG Nan WANG Nai'ang ZHAO Liqiang NIU Zhenmin SUN Jiaqi Center for Glacier and Desert Research College of Earth and Environmental SciencesLanzhou UniversityLanzhou 730000China

wind controls the formation and development of sand ***,understanding the wind regimes is necessary in sand dune *** this study,we combined the wind data from 2017 to 2019 at four meteorological stations(Cherigele and Wuertabulage stations in the lake basins,and Yikeri and Sumujilin stations on the top of sand dunes)in the hinterland of the Badain Jaran Desert in China,with high resolution Google Earth images to analyze the correlation between the wind energy environments and dune *** results of data analysis indicated that both the wind direction and sand drift intensity exhibited notable spatial and temporal *** highest level of wind activity was observed in *** and northeasterly winds were the dominant in the Badain Jaran *** the Cherigele,Wuertabulage,and Yikeri stations,the drift potential(DP)was below 200.00 vector units(VU).The wind energy environments in most areas could be classified as low-energy *** resultant drift direction differed at different stations and in different seasons,but the overall direction was mainly the *** resultant drift potential(RDP)/DP ratio was greater than 0.30 in most parts of the study area,suggesting that the wind regimes mainly exhibited unimodal or bimodal *** between the thermodynamic properties and the unique landscape settings of lakes and sand dunes could alter the local circulation and intensify the complexity of the wind *** wind regimes were weaker in the lake basins than on the top of sand *** dunes were the most dominant types of sand dunes in the study area,and the wind regimes at most stations were consistent with sand dune *** was thus the main dynamic factor affecting the formation of sand dunes in the Badain Jaran Desert *** results of this study are important for understanding the relationship between the wind regimes and aeolian landforms of the dune field in the desert

关键词： sand-driving wind drift potential wind energy environment sand dune local circulation Badain Jaran Desert

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