干旱区生态环境知识资源中心(Arid): The Trend Reversal of Dust Aerosol Over East Asia and the North Pacific Ocean Attributed to Large-Scale Meteorology, Deposition, and Soil Moisture

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DOI	10.1029/2019JD030654
	The Trend Reversal of Dust Aerosol Over East Asia and the North Pacific Ocean Attributed to Large-Scale Meteorology, Deposition, and Soil Moisture
	Guo, Jianping 1; Xu, Hui 1; Liu, Lin 1; Chen, Dandan 1; Peng, Yiran 2; Yim, Steve Hung-Lam 3,4; Yang, Yuanjian 4; Li, Jian 1; Zhao, Chun 5; Zhai, Panmao 1
通讯作者	Xu, Hui ; Liu, Lin
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN	2169-897X
EISSN	2169-8996
出版年	2019
卷号	124 期号:19 页码:10450-10466
英文摘要	The long-term trend in dust loading over East Asia remains under debate and is dependent on the study period chosen. In this study, the long-term trends in springtime dust over East Asia and the North Pacific Ocean (NPO) during 1980-2017 were examined based on the Modern-Era Retrospective Analysis for Research and Applications version 2 reanalysis. Results showed that there was a spatial gradient in dust aerosol loadings, with decreases from western China eastward toward the NPO. This pattern was corroborated by Cloud-Aerosol Lidar with Orthogonal Polarization observations. Furthermore, the empirical orthogonal function method was used to reveal the leading modes of springtime dust aerosol optical depth (AOD) over East Asia and the NPO. An abrupt shift occurred in the dust AOD trend in 2010 for the empirical orthogonal function 1 mode. The dust AOD increased at a rate of approximately 2 x 10(-4)/year during 1999-2009 and then decreased more sharply (around 5 x 10(-4)/year) afterward. This trend reversal of dust AOD was closely associated with a decrease in 10-m wind velocity, which induces reduced dust emission. Compared with 10-m wind, the soil moisture is less correlated with the trend reversal in dust AOD. Additionally, the trends of dry (wet) deposition were closely associated with the trends of the dust AOD, especially for the period 2010-2016. Overall, our findings add new insights to the long-term nonlinear variability of dust.
英文关键词	dust AOD East Asia shift wind China
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000489796400001
WOS关键词	EMPIRICAL ORTHOGONAL FUNCTIONS ; ATMOSPHERIC CIRCULATION ; DATA ASSIMILATION ; TIBETAN PLATEAU ; INNER-MONGOLIA ; STORM EVENTS ; MINERAL DUST ; DESERT DUST ; GLOBAL DUST ; PART II
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	清华大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217079
作者单位	1.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China; 2.Tsinghua Univ, Dept Earth Syst Sci, Beijing, Peoples R China; 3.Chinese Univ Hong Kong, Dept Geog & Resource Management, Sha Tin, Hong Kong, Peoples R China; 4.Chinese Univ Hong Kong, Inst Environm Energy & Sustainabil, Sha Tin, Hong Kong, Peoples R China; 5.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Guo, Jianping,Xu, Hui,Liu, Lin,et al. The Trend Reversal of Dust Aerosol Over East Asia and the North Pacific Ocean Attributed to Large-Scale Meteorology, Deposition, and Soil Moisture[J]. 清华大学,2019,124(19):10450-10466.
APA	Guo, Jianping.,Xu, Hui.,Liu, Lin.,Chen, Dandan.,Peng, Yiran.,...&Zhai, Panmao.(2019).The Trend Reversal of Dust Aerosol Over East Asia and the North Pacific Ocean Attributed to Large-Scale Meteorology, Deposition, and Soil Moisture.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(19),10450-10466.
MLA	Guo, Jianping,et al."The Trend Reversal of Dust Aerosol Over East Asia and the North Pacific Ocean Attributed to Large-Scale Meteorology, Deposition, and Soil Moisture".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.19(2019):10450-10466.