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Spatiotemporal variation of aerosol and potential long-range transport impact over the Tibetan Plateau, China
Zhu, J (Zhu, Jun)1,2,3,4; Xia, XG (Xia, Xiangao)2,5; Che, HZ (Che, Huizheng)3,4; Wang, J (Wang, Jun)6,7; Cong, ZY (Cong, Zhiyuan)8; Zhao, TL (Zhao, Tianliang)1; Kang, SC (Kang, Shichang)9,11; Zhang, XL (Zhang, Xuelei)10; Yu, XN (Yu, Xingna)1; Zhang, YL (Zhang, Yanlin)1
Source PublicationATMOSPHERIC CHEMISTRY AND PHYSICS
2019
Volume19Issue:23Pages:14637-14656
DOI10.5194/acp-19-14637-2019
Abstract

The long-term temporal-spatial variations in the aerosol optical properties over the Tibetan Plateau (TP) and the potential long-range transport from surrounding areas to the TP were analyzed in this work, by using multiple years of sun photometer measurements (CE318) at five stations in the TP, satellite aerosol products from the Moderate Resolution Imaging Spectroradiometer (MODIS) and Cloud=Aerosol Lidar with Orthogonal Polarization (CALIOP), back-trajectory analysis from the Hybrid Single Particle La-grangian Integrated Trajectory (HYSPLIT) and model simulations from the Goddard Earth Observing System (GEOS)Chem chemistry transport model. The results from the ground-based observations showed that the annual aerosol optical depth (AOD) at 440 nm at most TP sites increased in recent decades with trends of 0.001 +/- 0.003 yr(-1) at Lhasa, 0.013 +/- 0.003 yr(-1) at Mt_WLG, 0.002 +/- 0.002 yr(-1) at NAM_CO and 0.000 +/- 0.002 yr(-1) at QOMS_CAS. The increasing trend was also found for the aerosol extinction Angstrom exponent (EAE) at most sites with the exception of the Mt_WLG site. Spatially, the AOD at 550 nm observed from MODIS showed negative trends at the northwest edge close to the Taklimakan Desert and to the east of the Qaidam Basin and slightly positive trends in most of the other areas of the TP. Different aerosol types and sources contributed to a polluted day (with CE318 AOD at 440 nm > 0.4) at the five sites on the TP: dust was the dominant aerosol type in Lhasa, Mt_WLG and Muztagh with sources in the Taklimakan Desert, but fine-aerosol pollution was dominant at NAM_CO and QOMS_CAS with transport from South Asia. A case of aerosol pollution at Lhasa, NAM_CO and QOMS_CAS during 28 April-3 May 2016 revealed that the smoke aerosols from South Asia were lifted up to 10 km and transported to the TP, while the dust from the Taklimakan Desert could climb the north slope of the TP and then be transported to the central TP. The long-range transport of aerosol thereby seriously impacted the aerosol loading over the TP.

Subject AreaEnvironmental Sciences
WOS IDWOS:000500962300001
Language英语
Indexed BySCI
KeywordYangtze-river Delta Optical-properties Nam Co Chemical-characterization Physical-properties Cloud Properties Southwest China Summer Dust Calipso Pollution
WOS Research AreaEnvironmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS SubjectEnvironmental Sciences ; Meteorology & Atmospheric Sciences
Cooperation Status国际
ISSN1680-7316
Department环境变化与地表过程重点实验室
URL查看原文
PublisherCOPERNICUS GESELLSCHAFT MBH
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/9051
Collection图书馆
Corresponding AuthorZhu, J (Zhu, Jun); Xia, XG (Xia, Xiangao)
Affiliation1.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Key Lab Aerosol Cloud Precipitat China Meteorol A, Nanjing 210044, Jiangsu, Peoples R China;
2.Chinese Acad Sci, Inst Atmospher Phys, LAGEO, Beijing 100029, Peoples R China;
3.CMA, Chinese Acad Meteorol Sci, State Key Lab Severe Weather LASW, Beijing, Peoples R China;
4.CMA, Chinese Acad Meteorol Sci, Key Lab Atmospher Chem LAC, Beijing, Peoples R China;
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
6.Univ Iowa, Ctr Global & Reg Environm Res, Iowa City, IA USA;
7.Univ Iowa, Dept Chem & Biochem Engn, Iowa City, IA 52242 USA;
8.Chinese Acad Sci, Key Lab Tibetan Environm Changes & Land Surface P, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China;
9.Chinese Acad Sci, State Key Lab Cryospher Sci, Northwest Inst Ecoenviron & Resources, Lanzhou 730000, Gansu, Peoples R China;
10.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Changchun 130102, Jilin, Peoples R China;
11.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China.
Recommended Citation
GB/T 7714
Zhu, J ,Xia, XG ,Che, HZ ,et al. Spatiotemporal variation of aerosol and potential long-range transport impact over the Tibetan Plateau, China[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(23):14637-14656.
APA Zhu, J .,Xia, XG .,Che, HZ .,Wang, J .,Cong, ZY .,...&Zhang, YL .(2019).Spatiotemporal variation of aerosol and potential long-range transport impact over the Tibetan Plateau, China.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(23),14637-14656.
MLA Zhu, J ,et al."Spatiotemporal variation of aerosol and potential long-range transport impact over the Tibetan Plateau, China".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.23(2019):14637-14656.
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