气候变化领域集成服务门户(CCPortal): Wind regime features and their impacts on the middle reaches of the Yarlung Zangbo River on the Tibetan Plateau, China

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DOI	10.1007/s40333-023-0066-8
	Wind regime features and their impacts on the middle reaches of the Yarlung Zangbo River on the Tibetan Plateau, China
	Zhang, Yan; Zhang, Zhengcai; Ma, Pengfei; Pan, Kaijia; Zha, Duo; Chen, Dingmei; Shen, Caisheng; Liang, Aimin
发表日期	2023
ISSN	1674-6767
EISSN	2194-7783
起始页码	1174
结束页码	1195
卷号	15 期号:10
英文摘要	The wide valley of the Yarlung Zangbo River is one of the most intense areas in terms of aeolian activity on the Tibetan Plateau, China. In the past, the evaluation of the intensity of aeolian activity in the Qushui-Sangri section of the Yarlung Zangbo River Valley was mainly based on data from the old meteorological stations, especially in non-sandy areas. In 2020, six new meteorological stations, which are closest to the new meteorological stations, were built in the wind erosion source regions (i.e., sandy areas) in the Qushui-Sangri section. In this study, based on mathematical statistics and empirical orthogonal function (EOF) decomposition analysis, we compared the difference of the wind regime between new meteorological stations and old meteorological stations from December 2020 to November 2021, and discussed the reasons for the discrepancy. The results showed that sandy and non-sandy areas differed significantly regarding the mean velocity (8.3 (& PLUSMN;0.3) versus 7.7 (& PLUSMN;0.3) m/s, respectively), frequency (12.9% (& PLUSMN;6.2%) versus 2.9% (& PLUSMN;1.9%), respectively), and dominant direction (nearly east or west versus nearly north or south, respectively) of sand-driving winds, drift potential (168.1 (& PLUSMN;77.3) versus 24.0 (& PLUSMN;17.9) VU (where VU is the vector unit), respectively), resultant drift potential (92.3 (& PLUSMN;78.5) versus 8.7 (& PLUSMN;9.2) VU, respectively), and resultant drift direction (nearly westward or eastward versus nearly southward or northward, respectively). This indicated an obvious spatial variation in the wind regime between sandy and non-sandy areas and suggested that there exist problems when using wind velocity data from non-sandy areas to evaluate the wind regime in sandy areas. The wind regime between sandy and non-sandy areas differed due to the differences in topography, heat flows, and their coupling with underlying surface, thereby affecting the local atmospheric circulation. Affected by large-scale circulations (westerly jet and Indian monsoon systems), both sandy and non-sandy areas showed similar seasonal variations in their respective wind regime. These findings provide a credible reference for re-understanding the wind regime and scientific wind-sand control in the middle reaches of the Yarlung Zangbo River Valley.
关键词	wind regime aeolian activity sand-driving winds drift potential atmospheric circulation Yarlung Zangbo River Tibetan Plateau
英文关键词	NORTHERN CHINA; AIR-POLLUTION; DESERT; DUST; LAND; GEOMORPHOLOGY; BASIN; DUNES; SAND
WOS研究方向	Environmental Sciences
WOS记录号	WOS:001064525900001
来源期刊	JOURNAL OF ARID LAND
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283720
作者单位	Chinese Academy of Sciences; Institute of Atmospheric Physics, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Chinese Academy of Sciences; Shaanxi Normal University
推荐引用方式 GB/T 7714	Zhang, Yan,Zhang, Zhengcai,Ma, Pengfei,et al. Wind regime features and their impacts on the middle reaches of the Yarlung Zangbo River on the Tibetan Plateau, China[J],2023,15(10).
APA	Zhang, Yan.,Zhang, Zhengcai.,Ma, Pengfei.,Pan, Kaijia.,Zha, Duo.,...&Liang, Aimin.(2023).Wind regime features and their impacts on the middle reaches of the Yarlung Zangbo River on the Tibetan Plateau, China.JOURNAL OF ARID LAND,15(10).
MLA	Zhang, Yan,et al."Wind regime features and their impacts on the middle reaches of the Yarlung Zangbo River on the Tibetan Plateau, China".JOURNAL OF ARID LAND 15.10(2023).