Characteristics of wind regime and sand drift potential in Qaidam Basin of China

doi:10.7522/j.issn.1000-694X.2019.00090

Journal of Desert Research ›› 2020, Vol. 40 ›› Issue (1): 195-203.DOI: 10.7522/j.issn.1000-694X.2019.00090

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Characteristics of wind regime and sand drift potential in Qaidam Basin of China

Chen Zongyan^1,2,3,4,5, Dong Zhibao^1,2, Wang Qingchun⁶, E Chongyi³, Liu Fei³

1. College of Geographic Science & Tourism, Shaanxi Normal University, Xi'an 710119, China;
2. National Department Center for Experimental Geography Education, Shaanxi Normal University, Xi'an 710119, China;
3. College of Geographic Science, Xining 810008, China;
4. MOE Key Laboratory of Tibetan Plateau Land Surface Processes and Ecological Conservation, Xining 810008, China;
5. Key Laboratory of Qinghai Province Physical Geography and Environmental Process, Xining 810008, China;
6. Climate Center of Qinghai Province, Xining 810001, China

Received:2019-09-21 Revised:2019-11-05 Online:2020-01-20 Published:2020-01-18

Abstract

Abstract: Based on the wind data of 13 meteorological stations in Qaidam Basin, this paper analyzed the variation characteristics of the wind regime and sand drift potential. The results show that:(1) The annual mean wind velocity ranges in 2.0-4.4 m·s^-1 in Qaidam Basin, and it decreases gradually from the mountainous area of southern and northern edge to the central part of the Basin. The main wind direction of the stations in the western part of the Basin is westerly and the direction is more concentrated. While, it is easterly in the eastern part of the Basin, its direction is opposite to the overall wind direction of the Basin and is more dispersed. (2) The average annual sand-driving wind velocity ranges in 7.0-8.2 m·s^-1 in the Basin, and its frequency ranges in 5.1%-26.1%. It mainly occurs in winter and spring, and is mainly distributed in WNW and W directions. (3) The sand drift potential of the Basin ranges in 34.0-462.3 VU, the northwestern part of the Basin belongs to high wind energy environment, and the central and southeastern part of the Basin belongs to low-middle wind energy environment. The wind direction variability ranges in 0.45-0.91, and wind regime is narrow unimodal or wide unimodal. The difference between the northwestern and southeastern part of the basin is great. The RDD of Delingha station is opposite to other places of the Basin.

Key words: wind regime, sand-driving wind, sand drift potential, Qaidam Basin

CLC Number:

P931.3

Chen Zongyan, Dong Zhibao, Wang Qingchun, E Chongyi, Liu Fei. Characteristics of wind regime and sand drift potential in Qaidam Basin of China[J]. Journal of Desert Research, 2020, 40(1): 195-203.

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Characteristics of wind regime and sand drift potential in Qaidam Basin of China

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