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Light absorption properties of brown carbon over the southeastern Tibetan Plateau
Zhu, Chong-Shu1; Cao, Jun-Ji1; Huang, Ru-Jin1; Shen, Zhen-Xing2; Wang, Qi-Yuan1; Zhang, Ning-Ning1
2018-06-01
发表期刊SCIENCE OF THE TOTAL ENVIRONMENT
卷号625期号:2018页码:246-251
文章类型Article
摘要We present a study of the light-absorbing properties of water-soluble brown carbon (WS-BrC) and methanolsoluble brown carbon (MeS-BrC) at a remote site (Lulang, 3326 m above sea level) in the southeastern Tibetan Plateau during the period 2015-2016. The light absorption coefficients at 365 nm (b(abs365)) of WS-BrC and MeS-BrC were the highest during winter and the lowest during monsoon season. MeS-BrC absorbs about 1.5 times higher at 365 nm compared to WS-BrC. The absorption at 550 nm appears lower compared to that of 365 nm for WS-BrC and MeS-BrC, respectively. Higher average value of the absorption Angstrom exponent (AAE, 365-550 nm) was obtained for MeS-BrC (8.2) than that for WS-BrC (6.9). The values of the mass absorption cross section at 365 nm (MAC(365)) indicated that BrC in winter absorbs UV-visible light more efficiently than in monsoon. The results confirm the importance of BrC in contributing to light-absorbing aerosols in this region. The understanding of the light absorption properties of BrC is of great importance, especially in modeling studies for the climate effects and transport of BrC in the Tibetan Plateau. (c) 2017 Elsevier B.V. All rights reserved.
关键词Brown Carbon Light Absorption Coefficient Mass Absorption Cross Section Tibetan Plateau
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.scitotenv.2017.12.183
关键词[WOS]SOLUBLE ORGANIC-CARBON ; BLACK CARBON ; SEASONAL-VARIATIONS ; OPTICAL-PROPERTIES ; ANGSTROM EXPONENT ; INLAND CHINA ; AEROSOL ; WATER ; URBAN ; EXTRACTS
收录类别SCI
语种英语
WOS研究方向Environmental Sciences & Ecology
WOS类目Environmental Sciences
WOS记录号WOS:000426356600025
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文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5239
专题粉尘与环境研究室
作者单位1.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol Chem & Phys, Xian 710061, Shaanxi, Peoples R China
2.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Shaanxi, Peoples R China
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Zhu, Chong-Shu,Cao, Jun-Ji,Huang, Ru-Jin,et al. Light absorption properties of brown carbon over the southeastern Tibetan Plateau[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,625(2018):246-251.
APA Zhu, Chong-Shu,Cao, Jun-Ji,Huang, Ru-Jin,Shen, Zhen-Xing,Wang, Qi-Yuan,&Zhang, Ning-Ning.(2018).Light absorption properties of brown carbon over the southeastern Tibetan Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,625(2018),246-251.
MLA Zhu, Chong-Shu,et al."Light absorption properties of brown carbon over the southeastern Tibetan Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 625.2018(2018):246-251.
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