干旱区生态环境知识资源中心(Arid): Impact of Dust Shortwave Absorbability on the East Asian Summer Monsoon

Arid

DOI	10.1029/2020GL089585
	Impact of Dust Shortwave Absorbability on the East Asian Summer Monsoon
	Wang, Zheng; Bi, Lei; Jia, Xiaojing; Yi, Bingqi; Lin, Xiubin; Zhang, Feng
通讯作者	Bi, L
来源期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
EISSN	1944-8007
出版年	2020
卷号	47 期号:19
英文摘要	Dust shortwave absorbability suffers from significant uncertainties. We investigated the radiative effects of dust aerosols from the circum-Tibet region using four shortwave absorbability schemes and examined their impacts on the East Asian summer monsoon by using the Community Earth System Model (CESM). We adopted superspheroidal models to compute dust aerosol optical properties and found that more absorptive particles have larger asymmetry factor and lower single-scattering albedo. Meiyu precipitation, as a part of the East Asian summer monsoon, is weakened by dust aerosols, particularly for the convective precipitation. The mechanism is that dust aerosols transported mainly from the Gobi desert radiatively heat the lower atmosphere to the north of the Meiyu rainband and decrease the meridional temperature gradient, leading to the weakening of the midtropospheric westerly jet over the Meiyu rainband, which is important for convection. More absorptive dust aerosols with a stronger radiative heating effect inhibit more convective Meiyu precipitation.
英文关键词	dust monsoon precipitation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000584669000007
WOS关键词	COMPLEX REFRACTIVE-INDEXES ; OPTICAL-PROPERTIES ; MINERAL DUST ; RADIATIVE-TRANSFER ; PARTICLE-SHAPE ; NORTH-AFRICA ; DESERT DUST ; AEROSOL ; VARIABILITY ; SCATTERING
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327253
作者单位	[Wang, Zheng; Bi, Lei; Jia, Xiaojing; Lin, Xiubin; Zhang, Feng] Zhejiang Univ, Sch Earth Sci, Key Lab Geosci Big Data & Deep Resource Zhejiang, Hangzhou, Peoples R China; [Yi, Bingqi] Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai, Peoples R China; [Yi, Bingqi] Sun Yat Sen Univ, Guangdong Prov Key Lab Climate Change & Nat Disas, Zhuhai, Peoples R China; [Yi, Bingqi] Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zheng,Bi, Lei,Jia, Xiaojing,et al. Impact of Dust Shortwave Absorbability on the East Asian Summer Monsoon[J],2020,47(19).
APA	Wang, Zheng,Bi, Lei,Jia, Xiaojing,Yi, Bingqi,Lin, Xiubin,&Zhang, Feng.(2020).Impact of Dust Shortwave Absorbability on the East Asian Summer Monsoon.GEOPHYSICAL RESEARCH LETTERS,47(19).
MLA	Wang, Zheng,et al."Impact of Dust Shortwave Absorbability on the East Asian Summer Monsoon".GEOPHYSICAL RESEARCH LETTERS 47.19(2020).