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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
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
Volume625Issue:2018Pages:246-251
SubtypeArticle
AbstractWe 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.
KeywordBrown Carbon Light Absorption Coefficient Mass Absorption Cross Section Tibetan Plateau
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.scitotenv.2017.12.183
WOS KeywordSOLUBLE ORGANIC-CARBON ; BLACK CARBON ; SEASONAL-VARIATIONS ; OPTICAL-PROPERTIES ; ANGSTROM EXPONENT ; INLAND CHINA ; AEROSOL ; WATER ; URBAN ; EXTRACTS
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000426356600025
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5239
Collection粉尘与环境研究室
Affiliation1.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
Recommended Citation
GB/T 7714
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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