干旱区生态环境知识资源中心(Arid): Characteristics of dust devil and its dust emission in northern margin of the Taklimakan Desert

Arid

DOI	10.1016/j.aeolia.2020.100579
	Characteristics of dust devil and its dust emission in northern margin of the Taklimakan Desert
	Ma, Mingjie; Yang, Xinghua; He, Qing; Zhou, Chenglong; Mamtimin, Ali; Huo, Wen; Yang, Fan
通讯作者	He, Qing
来源期刊	AEOLIAN RESEARCH
ISSN	1875-9637
EISSN	2212-1684
出版年	2020
卷号	44
英文摘要	Dust aerosol has significant impacts on weather, climate, ecology, and global matter cycling, and dust devils are an important source of dust aerosol. The Taklimakan Desert is a major dust source area in East Asia, yet the characteristics of dust devils and their dust emissions are unclear in this region. In this study, the characteristics of dust devils at the northern margin of the Taklimakan Desert were analyzed. Existing equations for estimating dust emission by dust devils were revised based on our observed data, and dust emissions were estimated for the study area. The results showed that dust devils in the study area mainly occurred between March and September, which accounted for 90.9% of the total number of occurrence days in the year. Dust devil occurrence days displayed clear seasonal variation, ranked in the following descending order: summer > spring > autumn > winter. Dust devils tended to occur more frequently during the day, with relatively high occurrences from around 12:00 to 16:00 local standard time (LST) with peak occurrence 14:00-15:00 LST. Of the observed dust devils, 72.5% had a duration of 4 min or less while only 5.9% lasting for more than 6 min. The average annual dust emission from dust devils in the study area was approximately 1.96 t/km(2). The occurrence of dust devils and the calculated amounts of dust emitted were closely related to surface temperature and thermodynamic efficiency.
英文关键词	Dust devil Thermodynamic efficiency Dust emission Solar radiation Taklimakan Desert
类型	Review
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000526121200001
WOS关键词	NUMERICAL-SIMULATION ; AEROSOL BUDGET ; TRANSPORT ; PLUMES ; MODEL
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319242
作者单位	China Meteorol Adm, Taklimakan Desert Meteorol Field Expt Stn, Inst Desert Meteorol, Urumqi 830002, Peoples R China
推荐引用方式 GB/T 7714	Ma, Mingjie,Yang, Xinghua,He, Qing,et al. Characteristics of dust devil and its dust emission in northern margin of the Taklimakan Desert[J],2020,44.
APA	Ma, Mingjie.,Yang, Xinghua.,He, Qing.,Zhou, Chenglong.,Mamtimin, Ali.,...&Yang, Fan.(2020).Characteristics of dust devil and its dust emission in northern margin of the Taklimakan Desert.AEOLIAN RESEARCH,44.
MLA	Ma, Mingjie,et al."Characteristics of dust devil and its dust emission in northern margin of the Taklimakan Desert".AEOLIAN RESEARCH 44(2020).