干旱区生态环境知识资源中心(Arid): Improvement of dust emission parameterization scheme for dust devils based on intensive observations in the northern margin of the Taklimakan Desert

Arid

DOI	10.1007/s00704-022-04258-3
	Improvement of dust emission parameterization scheme for dust devils based on intensive observations in the northern margin of the Taklimakan Desert
	Ma, Mingjie; Yang, Xinghua; He, Qing; Mamtimin, Ali
通讯作者	Yang, XH
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
ISSN	0177-798X
EISSN	1434-4483
出版年	2023
卷号	151 期号:3-4 页码:1227-1237
英文摘要	We aimed to improve and evaluate the dust devil parameterization scheme using intensive observations of meteorological and dust devil data in the desert-oasis ecotone of the Xiaotang region in the northern margin of the Taklimakan Desert in combination with GPS sounding in the hinterland of the desert. The results indicated that the temperature difference between the surface and air at a height of 2 m above the ground suitable for dust devil formation was 16 & DEG;C. In addition, the suitable wind speed (2 m height above ground surface) was 3.2-3.6 m/s. The thermodynamic efficiency of dust devils after improvement was significantly higher than that before improvement. The values were improved by 84.7%, 63.9%, 25.6%, 13.3%, 12.5%, 22.7%, 26.6%, 26.9%, and 21.4% for every hour from 09:00 to 17:00, respectively. The annual number of dust devil occurrences after improvement was 431, which was 55.2% higher than that before improvement. The total annual duration of dust emission after improvement was 181.3 h, which was 95.9% lower than that calculated using day length before improvement and 31.8% higher than that calculated using sunshine time before improvement. The average vertical dust flux of a single dust devil event after improvement was 0.25 g/(m(2)middots), which was 68.8% lower than that before improvement. The average annual dust emission from dust devils per square kilometer was 320.5 t/km(2) and 15.3 t/km(2) before and after improvement, respectively, indicating that the value after improvement was significantly lower (approximately one-twentieth) than that before improvement.
类型	Article
语种	英语
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000906704600001
WOS关键词	THRESHOLD FRICTION VELOCITY ; MINERAL DUST ; AEROSOLS ; PARTICLES ; TRANSPORT ; PLUMES ; SOILS
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398895
推荐引用方式 GB/T 7714	Ma, Mingjie,Yang, Xinghua,He, Qing,et al. Improvement of dust emission parameterization scheme for dust devils based on intensive observations in the northern margin of the Taklimakan Desert[J],2023,151(3-4):1227-1237.
APA	Ma, Mingjie,Yang, Xinghua,He, Qing,&Mamtimin, Ali.(2023).Improvement of dust emission parameterization scheme for dust devils based on intensive observations in the northern margin of the Taklimakan Desert.THEORETICAL AND APPLIED CLIMATOLOGY,151(3-4),1227-1237.
MLA	Ma, Mingjie,et al."Improvement of dust emission parameterization scheme for dust devils based on intensive observations in the northern margin of the Taklimakan Desert".THEORETICAL AND APPLIED CLIMATOLOGY 151.3-4(2023):1227-1237.