干旱区生态环境知识资源中心(Arid): Geomorphology of aeolian dunes in the western Sahara Desert

Arid

DOI	10.1016/j.geomorph.2021.107916
	Geomorphology of aeolian dunes in the western Sahara Desert
	Hu, Zihao; Gao, Xin; Lei, Jiaqiang; Zhou, Na
通讯作者	Gao, X (corresponding author), Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, 818 South Beijing Rd, Urumqi 830011, Xinjiang, Peoples R China.
来源期刊	GEOMORPHOLOGY
ISSN	0169-555X
EISSN	1872-695X
出版年	2021
卷号	392
英文摘要	Although the western Sahara Desert is dominated by aeolian dunes, research on the geomorphology of aeolian dunes throughout this region as a unit has been limited compared with other large deserts. In the present study, comprehensive research is conducted on the geomorphology of dunes in the western Sahara Desert based on aeolian parameters and dune growth mechanisms. We identified the controlling factors on the dune morphology and formation of superimposed dunes. The results suggest that the spatial patterns of dune morphology are closely correlated with the drift potential (DP) and dune orientation. A well-defined gradient of declining DP, resultant drift potential (RDP), and directional wind variability from north to south was found, indicating a gradual weakening trend in the DP along the sand flow path. Linear and transverse dunes are distributed on the central part of the desert. Barchan dunes are distributed on the western coastal areas and desert margins. Lastly, star dunes are distributed in the upwind on the northern desert margin. We concluded that the wind regime and sand availability directly impact the dune morphology in the western Sahara Desert by considering the growth mechanisms. This study provides valuable reference data on regional aeolian activities that can be used by subsequent regional aeolian geomorphology studies in the western Sahara Desert. (c) 2021 Elsevier B.V. All rights reserved.
英文关键词	Aeolian geomorphology Dune growth modes Wind regime Sand availability Western Sahara Desert
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000709550900001
WOS关键词	TAOUDENI BASIN ; WIND ; MORPHODYNAMICS ; ORIENTATION ; TRANSVERSE ; TRANSPORT ; ALIGNMENT ; MODELS
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368236
作者单位	[Gao, Xin] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, 818 South Beijing Rd, Urumqi 830011, Xinjiang, Peoples R China; Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Hu, Zihao,Gao, Xin,Lei, Jiaqiang,et al. Geomorphology of aeolian dunes in the western Sahara Desert[J]. 中国科学院新疆生态与地理研究所,2021,392.
APA	Hu, Zihao,Gao, Xin,Lei, Jiaqiang,&Zhou, Na.(2021).Geomorphology of aeolian dunes in the western Sahara Desert.GEOMORPHOLOGY,392.
MLA	Hu, Zihao,et al."Geomorphology of aeolian dunes in the western Sahara Desert".GEOMORPHOLOGY 392(2021).