Deposition and light absorption characteristics of precipitation dissolved organic carbon (DOC) at three remote stations in the Himalayas and Tibetan Plateau, China
文献类型：期刊论文
| 作者 | Qu, B (Qu, Bin)4; Li, CL (Li, Chaoliu)1,4,6; Yan, FP (Yan, Fangping)4; Kang, SC (Kang, Shichang)1,3,5; Chen, PF (Chen, Pengfei)3; Hu, ZF (Hu, Zhaofu)3,5; Han, XW (Han, Xiaowen)5,6; Zhang, GS (Zhang, Guoshuai)6; Gao, SP (Gao, Shaopeng)6; Sillanpaa, M (Sillanpaa, Mika)2,4 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2017 |
| 卷号 | 605-606期号:0页码:1039-1046 |
| 关键词 | Modeling Black Carbon Nam Co Region Chemical Characteristics Optical-properties Brown Carbon Lhasa City Aerosol Rainwater Particles Transport |
| DOI | 10.1016/j.scitotenv.2017.06.232 |
| 文献子类 | Article |
| 英文摘要 | The concentrations, depositions and optical properties of precipitation DOC at three remote stations (Nam Co, Lulang and Everest) were investigated in the Himalayas and Tibetan Plateau (HTP). The results showed that their volume-weighted mean DOC concentrations were 1.05 +/- 1.01 mg C L-1, 0.83 +/- 0.85 mg C L-1 and 0.86 +/- 0.91mg C L-1, respectively, close to those of other remote areas in the world and lower than those of typical polluted urban cities. Combined with precipitation amounts, the DOC depositions at these three stations were calculated to be 0.34 +/- 0.32 g Cm-2 yr(-1), 0.84 +/- 0.86 g Cm-2 yr(-1) and 0.16 +/- 0.17 g Cm-2 yr(-1), respectively. The annual DOC deposition in the HTP was approximately 0.94 +/- 0.87 Tg C, the highest and lowest values appeared in the southeastern and northwestern plateau, respectively. The sources of DOC in the precipitation at these three stations were remarkably different, indicating large spatial heterogeneity in the sources of precipitation DOC over the HTP. Nam Co presented combustion sources from South Asia and local residents, Lulang showed biomass combustion source from South Asia, and Everest was mainly influenced by local mineral dust. The values of the MACDOC at 365 nm were 0.48 +/- 0.47 m(2) g(-1), 0.25 +/- 0.15 m(2) g(-1), and 0.64 +/- 0.49 m(2) g(-1), respectively, for the precipitation at the three stations. All of these values were significantly lower than those of corresponding near-surface aerosol samples because precipitation DOC contains more secondary organic aerosol with low light absorption abilities. Additionally, this phenomenon was also observed in seriously polluted urban areas, implying it is universal in the atmosphere. Because precipitation DOC contains information for both particle-bound and gaseous components from the near surface up to the altitude of clouds where precipitation occurs, the MAC(DOC) of precipitation is more representative than that of near-surface aerosols for a given region. (C) 2017 Elsevier B.V. All rights reserved. |
| 学科主题 | 自然地理学 |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000408275500107 |
| 源URL | [http://ir.itpcas.ac.cn/handle/131C11/7921]  |
| 专题 | 青藏高原研究所_图书馆 |
| 通讯作者 | Li, CL |
| 作者单位 | 1.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China. 2.Florida Int Univ, Dept Civil & Environm Engn, Miami, FL 33174 USA. 3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China. 4.Lappeenranta Univ Technol, Lab Green Chem, Sammonkatu 12, Mikkeli 50130, Finland. 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China. 6.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Qu, B ,Li, CL ,Yan, FP ,et al. Deposition and light absorption characteristics of precipitation dissolved organic carbon (DOC) at three remote stations in the Himalayas and Tibetan Plateau, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017,605-606(0):1039-1046. |
| APA | Qu, B .,Li, CL .,Yan, FP .,Kang, SC .,Chen, PF .,...&Li, CL.(2017).Deposition and light absorption characteristics of precipitation dissolved organic carbon (DOC) at three remote stations in the Himalayas and Tibetan Plateau, China.SCIENCE OF THE TOTAL ENVIRONMENT,605-606(0),1039-1046. |
| MLA | Qu, B ,et al."Deposition and light absorption characteristics of precipitation dissolved organic carbon (DOC) at three remote stations in the Himalayas and Tibetan Plateau, China".SCIENCE OF THE TOTAL ENVIRONMENT 605-606.0(2017):1039-1046. |
入库方式： OAI收割
来源：青藏高原研究所
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