Distinct effects of winter monsoon and westerly circulation on dust aerosol transport over East Asia

doi:10.1007/s00704-021-03579-z

IEECAS OpenIR > 古环境研究室

	Distinct effects of winter monsoon and westerly circulation on dust aerosol transport over East Asia
	Yang, Liu 1,2; Shi, Zhengguo1,3,4 ; Sun, Hui 1; Xie, Xiaoning 1; Liu, Xiaodong 1; An, Zhisheng 1
通讯作者	Shi, Zhengguo(shizg@ieecas.cn)
	2021-03-17
发表期刊	THEORETICAL AND APPLIED CLIMATOLOGY
ISSN	0177-798X
页码	12
摘要	The transport of dust aerosol in East Asia is affected by the East Asian winter monsoon (EAWM) and westerly circulation both for modern and geological periods. There are obvious seasonal changes in the intensity and range of EAWM and westerly jet; however, their impacts and relative contributions to East Asian dust transmission are still unclear. In this study, we use Regional Climate Model 4 (RegCM4) to simulate the changes in the East Asian dust cycle under present conditions, assessing the effects of EAWM and westerly jet on dust transport. The results show that the dust at the upper level is mainly transported by the westerly circulation, while that of the lower layer is mainly transported by the EAWM. In March, the westerly jet is located on the south side of the Tibet Plateau, and the high-level dust aerosol is transmitted eastward to the northern Pacific. Low-level dust is transmitted to the southeastern China with the influence of EAWM. With the northward shift of the westerly jet, the control range of the westerly winds increases in May and their correlations are weakened. In contrary, the impact of EAWM on the lower layer dust is enhanced. Due to the strengthened interaction between the westerly winds and the EAWM, they can both affect the middle-level dust transmission. The effect of EAWM is sensitive to the dust particle sizes. Under the action of EAWM, fine-grained dust is transmitted far away, while coarse-grained dust is limited to the vicinity of the source area. Once the dust is carried to the westerly layer, the influence of westerly winds on the transmission of different particle sizes dust is similar.
DOI	10.1007/s00704-021-03579-z
收录类别	SCI ; SCI
语种	英语
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDB40030000] ; National Key Research and Development Program of China[2016YFA0601904] ; National Natural Science Foundation of China[41977382] ; Youth Innovation Promotion Association CAS
WOS研究方向	Meteorology & Atmospheric Sciences
项目资助者	Strategic Priority Research Program of Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000629896500001
出版者	SPRINGER WIEN
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/16159
专题	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	Shi, Zhengguo
作者单位	1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 4.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China
推荐引用方式 GB/T 7714	Yang, Liu,Shi, Zhengguo,Sun, Hui,et al. Distinct effects of winter monsoon and westerly circulation on dust aerosol transport over East Asia[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2021:12.
APA	Yang, Liu,Shi, Zhengguo,Sun, Hui,Xie, Xiaoning,Liu, Xiaodong,&An, Zhisheng.(2021).Distinct effects of winter monsoon and westerly circulation on dust aerosol transport over East Asia.THEORETICAL AND APPLIED CLIMATOLOGY,12.
MLA	Yang, Liu,et al."Distinct effects of winter monsoon and westerly circulation on dust aerosol transport over East Asia".THEORETICAL AND APPLIED CLIMATOLOGY (2021):12.