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Seasonal and interannual variations of atmospheric dust aerosols in mid and low latitudes of Asia - A comparative study
Sun, Hui1; Liu, Xiaodong1,2,3; Wang, Anqi1,3
Corresponding AuthorSun, Hui(sunhui@ieecas.cn)
2020-11-01
Source PublicationATMOSPHERIC RESEARCH
ISSN0169-8095
Volume244Pages:11
AbstractAlthough variations of atmospheric dust aerosols emitted from different sources within Asia have been studied separately in previous research, the characteristics and causes of these changes have not been fully explored. This study used the Modern-Era Retrospective Analysis for Research and Applications Version 2 (MERRA-2) data set for 1980-2016 to compare seasonal and interannual variations of atmospheric dust aerosols between mid-and low-latitude sources of Asia and explore the reasons for these variations. The seasonal variation of atmospheric dust aerosols in mid-latitude sources was different from that of low-latitude sources. The column burden of dust aerosols in the mid-latitude sources (including East and Central Asia) reached their maximum in spring, and accounted for about 37% and 33% of their annual total load, respectively. The maximum dust aerosols in spring in the Central Asia sources resulted from multiple factors such as soil wetness, snow depth, and vertical wind shear, but they were negatively correlated with soil wetness on the interannual scale (r = - 0.65). The maximum dust aerosol burden in spring in the East Asia sources resulted from vertical wind shear in the lower troposphere, and showed a positive correlation with the interannual change of dust aerosols in this source region (r = 0.51). However, the column burden of dust aerosols in the low-latitude sources (including South and West Asia) reached their maximum in summer, and accounted for about 41% and 37% of their annual total load, respectively. The maximum dust aerosols of summer in the low-latitude sources also resulted from vertical wind shear in the lower troposphere with correlation coefficients of 0.50 and 0.73 in the South and West Asia sources, respectively. The present results may help in further understanding the formation and change of Asian dust aerosols.
KeywordDust aerosols Dust sources Asian deserts
DOI10.1016/j.atmosres.2020.105036
WOS KeywordINDIAN-SUMMER MONSOON ; REGIONAL CLIMATE MODEL ; ARCTIC OSCILLATION ; TIBETAN PLATEAU ; WEST ASIA ; EAST ; EMISSION ; DESERT ; SENSITIVITY ; DEPOSITION
Indexed BySCI ; SCI
Language英语
Funding ProjectStrategic Priority Research Program of Chinese Academy of Sciences[XDB40030100] ; National Key Research and Development Program of China[2016YFA0601904] ; National Natural Science Fundation of China[41991254] ; National Natural Science Fundation of China[41690115]
WOS Research AreaMeteorology & Atmospheric Sciences
Funding OrganizationStrategic Priority Research Program of Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Natural Science Fundation of China
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000556568400021
PublisherELSEVIER SCIENCE INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/15141
Collection古环境研究室
第四纪科学与全球变化卓越创新中心
Corresponding AuthorSun, Hui
Affiliation1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Sun, Hui,Liu, Xiaodong,Wang, Anqi. Seasonal and interannual variations of atmospheric dust aerosols in mid and low latitudes of Asia - A comparative study[J]. ATMOSPHERIC RESEARCH,2020,244:11.
APA Sun, Hui,Liu, Xiaodong,&Wang, Anqi.(2020).Seasonal and interannual variations of atmospheric dust aerosols in mid and low latitudes of Asia - A comparative study.ATMOSPHERIC RESEARCH,244,11.
MLA Sun, Hui,et al."Seasonal and interannual variations of atmospheric dust aerosols in mid and low latitudes of Asia - A comparative study".ATMOSPHERIC RESEARCH 244(2020):11.
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