干旱区生态环境知识资源中心(Arid): Wind regime for long-ridge yardangs in the Qaidam Basin, Northwest China

Arid

	Wind regime for long-ridge yardangs in the Qaidam Basin, Northwest China
	Gao Xuemin; Dong Zhibao; Duan Zhenghu; Liu Min; Cui Xujia; Li Jiyan
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2019
卷号	11 期号:5 页码:701-712
英文摘要	Yardangs are typical aeolian erosion landforms, which are attracting more and more attention of geomorphologists and geologists for their various morphology and enigmatic formation mechanisms. In order to clarify the aeolian environments that influence the development of long-ridge yardangs in the northwestern Qaidam Basin of China, the present research investigated the winds by installing wind observation tower in the field. We found that the sand-driving winds mainly blow from the north-northwest, northwest and north, and occur the most frequent in summer, because the high temperature increases atmospheric instability and leads to downward momentum transfer and active local convection during these months. The annual drift potential and the ratio of resultant drift potential indicate that the study area pertains to a high-energy wind environment and a narrow unimodal wind regime. The wind energy decreases from northwest to southeast in the Qaidam Basin, with the northerly winds in the northwestern basin changing to more westerly in the southeastern basin. The strong and unidirectional wind regime for the long-ridge yardangs in the northwestern Qaidam Basin results from the combined effects of topographic obstacles such as the Altun Mountains and of the interaction between the air stream and the yardang bodies. Present study suggests that yardang evolution needs such strong and unidirectional winds in high- or intermediate-energy wind environments. This differs from sandy deserts or sandy lands, which usually develop at low- or intermediate-energy wind environments. Present study clarifies the wind regime corresponding to the long-ridge yardangs' development, and lays firm foundation to put forward the formation mechanisms for yardangs in the Qaidam Basin.
英文关键词	aeolian landform yardang wind regime drift potential Qaidam Basin
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Geology
CSCD记录号	CSCD:6595734
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336194
作者单位	Gao Xuemin, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences;;University of Chinese Academy of Sciences;;School of Tourism and Public Administration, Jinzhong University, Key Laboratory of Desert and Desertification, Chinese Academy of Sciences;;;;, Lanzhou;;;;Jinzhong, ;;Beijing;; 730000;;100049;;030619.; Dong Zhibao, School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi 710062, China.; Duan Zhenghu, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Key Laboratory of Desert and Desertification, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Liu Min, School of Geography Science, Taiyuan Normal University, Jinzhong, Shanxi 030619, China.; Cui Xujia, School of Geography Science, Taiyuan Normal University, Jinzhong, Shanxi 030619, China.; Li Jiyan, School of Geography Science, Taiyuan Normal University;;Qinghai Normal University, ;;Key Laboratory of Education Ministry on Environment and Resources in Tibetan Pl...
推荐引用方式 GB/T 7714	Gao Xuemin,Dong Zhibao,Duan Zhenghu,et al. Wind regime for long-ridge yardangs in the Qaidam Basin, Northwest China[J],2019,11(5):701-712.
APA	Gao Xuemin,Dong Zhibao,Duan Zhenghu,Liu Min,Cui Xujia,&Li Jiyan.(2019).Wind regime for long-ridge yardangs in the Qaidam Basin, Northwest China.Journal of Arid Land,11(5),701-712.
MLA	Gao Xuemin,et al."Wind regime for long-ridge yardangs in the Qaidam Basin, Northwest China".Journal of Arid Land 11.5(2019):701-712.