A transient simulation of precession-scale spring dust activity over northern China and its relation to mid-latitude atmospheric circulation

doi:10.1016/j.palaeo.2020.109585

	A transient simulation of precession-scale spring dust activity over northern China and its relation to mid-latitude atmospheric circulation
	Li, Xinzhou 2,3; Liu, Xiaodong 2,3; Pan, Zaitao 1,5; Shi, Zhengguo 2; Xie, Xiaoning 2; Guo, Qingchun 4
刊名	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
	2020-03-15
卷号	542 页码:10
关键词	Asian dust Westerly Jet Precessional cycle Tibetan Plateau Surface heating Siberian high
ISSN号	0031-0182
DOI	10.1016/j.palaeo.2020.109585
通讯作者	Li, Xinzhou(lixz@ieecas.cn)
英文摘要	Dust aerosol plays an important role in energy and water cycles of the earth system across multiple spatial and temporal scales, and it is also a key factor in determining air quality in arid and semi-arid areas of Asia. Spring is the season of peak dust activity (i.e. emission, transport, and sedimentation) in Asia. However, on the Earth's orbit scale, spring dust activity in northern China (NC) and its relationship with atmospheric circulation have seldom been investigated. We present the results of an analysis of the evolution characteristic on the astronomical timescale, and dynamic mechanism of spring dust activity in NC, based on a transient numerical simulation over the past 150 kyr spanning multiple precessional cycles. We found that within the precessional band, spring dust transport is in-phase with insolation, the upper Westerly Jet on the north (nWJ) of the Tibetan Plateau (TP), surface wind, and heating of the TP; whereas it is out-of-phase with Siberian high (SH), atmospheric precipitation, and soil water. During the high-insolation stage, the nWJ is strengthened by the thermal forcing of the TP, which causes a northward shift of the location of the Westerly Jet, so that dust activity is enhanced by the propagation of upper-level waves. Meanwhile, during the high-insolation stage, the instability of the lower atmosphere is increased due to the strengthening of the northerly wind associated with the weakening of the SH and surface warming, together with their higher interaction, with the nWJ giving rise to dust mobilization in the Asian arid and semi-arid source areas, and vice versa. Rainfall and soil moisture have little influence on the dust cycle on the orbital scale, although modern observations show they have an important inhibitory effect on dust emission.
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDA20070103] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[41690115] ; National Key Research and Development Program of China[2016YEA0601904] ; Belt and Road Center for Climate and Environment Studies, Institute of Earth Environment, Chinese Academy of Sciences
WOS关键词	LAST GLACIAL MAXIMUM ; TIBETAN PLATEAU ; ORBITAL-SCALE ; ASIAN DUST ; WESTERLY JET ; NUMERICAL-SIMULATION ; MONSOON VARIABILITY ; MILLENNIAL-SCALE ; GOBI DESERT ; CLIMATE
WOS研究方向	Physical Geography ; Geology ; Paleontology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000517852600010
资助机构	Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; Belt and Road Center for Climate and Environment Studies, Institute of Earth Environment, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/12724]
专题	地球环境研究所_古环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Li, Xinzhou
作者单位	1.St Louis Univ, Dept Earth & Atmospher Sci, St Louis, MO 63103 USA 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Shaanxi, Peoples R China 3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China 4.Liaocheng Univ, Sch Environm & Planning, Liaocheng, Shandong, Peoples R China 5.Nanjing Univ Informat Sci & Technol, Key Lab Meteorol Disaster, Minist Educ, Nanjing, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Li, Xinzhou,Liu, Xiaodong,Pan, Zaitao,et al. A transient simulation of precession-scale spring dust activity over northern China and its relation to mid-latitude atmospheric circulation[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2020,542:10.
APA	Li, Xinzhou,Liu, Xiaodong,Pan, Zaitao,Shi, Zhengguo,Xie, Xiaoning,&Guo, Qingchun.(2020).A transient simulation of precession-scale spring dust activity over northern China and its relation to mid-latitude atmospheric circulation.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,542,10.
MLA	Li, Xinzhou,et al."A transient simulation of precession-scale spring dust activity over northern China and its relation to mid-latitude atmospheric circulation".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 542(2020):10.