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

DOI	10.1007/s40333-019-0108-4
	Wind regime for long-ridge yardangs in the Qaidam Basin, Northwest China
	Gao Xuemin 1,2,3; Dong Zhibao4 ; Duan Zhenghu 1; Liu Min 5; Cui Xujia 5; Li Jiyan 5,6
通讯作者	Gao Xuemin
来源期刊	JOURNAL OF ARID LAND
ISSN	1674-6767
EISSN	2194-7783
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
国家	Peoples R China
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000507479000006
WOS关键词	QARHAN SALT LAKE ; NORTHERN MARGIN ; KUMTAGH DESERT ; LINEAR DUNES ; GEOMORPHOLOGY ; FEATURES ; WESTERN ; DEPRESSION ; EVOLUTION ; IMAGES
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
EI主题词	2019-10-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310092
作者单位	1.Chinese Acad Sci, Key Lab Desert & Desertificat, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Jinzhong Univ, Sch Tourism & Publ Adm, Jinzhong 030619, Peoples R China; 4.Shaanxi Normal Univ, Sch Geog & Tourism, Xian 710062, Peoples R China; 5.Taiyuan Normal Univ, Sch Geog Sci, Jinzhong 030619, Peoples R China; 6.Qinghai Normal Univ, Educ Minist Environm & Resources Tibetan Plateau, Key Lab, Xining 810008, Peoples R China
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.