Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL082731 |
High Contribution of Secondary Brown Carbon to Aerosol Light Absorption in the Southeastern Margin of Tibetan Plateau | |
Wang, Qiyuan1,2; Han, Yongming1,2; Ye, Jianhuai3; Liu, Suixin1,2; Pongpiachan, Siwatt4; Zhang, Ningning1,2; Han, Yuemei1,2; Tian, Jie1,2; Wu, Cheng5; Long, Xin1; Zhang, Qian6; Zhang, Wenyan7; Zhao, Zhuzi8; Cao, Junji1,2 | |
2019-05-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
![]() |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:9页码:4962-4970 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA; Thailand |
英文摘要 | The optical properties of atmospheric secondary brown carbon (BrC) aerosol are poorly understood because of its chemical complexity, and this has hampered quantitative assessments of the impacts of this light-absorbing material on glaciers on the Tibetan Plateau. For this study, a statistical approach was developed to investigate BrC light absorption over the southeastern margin of the Tibetan Plateau. Secondary sources for BrC were more important for absorption than primary ones. A diurnal cycle in secondary BrC absorption was explained by the formation of light-absorbing chromophores by photochemical oxidation after sunrise followed by photobleaching of the chromophores under the more oxidizing conditions as the day progressed. Multimethod analyses showed that biomass burning in northern Burma and along the Sino-Burmese border was the most important source for the secondary BrC. The mean integrated simple forcing efficiency was 79 W/g, indicating that secondary BrC can cause substantial radiative effects. Plain Language Summary A statistical approach was developed to evaluate light absorption by secondary brown carbon (BrC) aerosol particles. We characterized the diurnal cycle of secondary BrC over the southeastern margin of Tibetan Plateau, identified likely pollution sources, and estimated its radiative effects. To our knowledge, this is the first time that light absorption from primary versus secondary BrC has been evaluated. This approach should be useful for further improving models and accurately evaluating the effects of BrC on glacial recession on the Tibetan Plateau. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000468869500045 |
WOS关键词 | BLACK CARBON ; ORGANIC AEROSOL ; REMOTE SITE ; MASS ; EMISSIONS ; PARTICLES ; AETHALOMETER ; ENVIRONMENT ; HIMALAYAS ; PM2.5 |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/183281 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, State Ley Lab Loess & Quatemary Geol, Xian, Shaanxi, Peoples R China; 2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian, Shaanxi, Peoples R China; 3.Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA; 4.NIDA, Sch Social & Environm Dev, Bangkok, Thailand; 5.Jinan Univ, Inst Mass Spectrometer & Atmospher Environm, Guangzhou, Guangdong, Peoples R China; 6.Xian Univ Architecture & Technol, Sch Environm & Municipal Engn, Xian, Shaanxi, Peoples R China; 7.Fujian Normal Univ, Coll Geog, Fuzhou, Fujian, Peoples R China; 8.Jiangsu Univ TechnolChangzhou, Sch Chem & Environm Engn, Changzhou, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Qiyuan,Han, Yongming,Ye, Jianhuai,et al. High Contribution of Secondary Brown Carbon to Aerosol Light Absorption in the Southeastern Margin of Tibetan Plateau[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(9):4962-4970. |
APA | Wang, Qiyuan.,Han, Yongming.,Ye, Jianhuai.,Liu, Suixin.,Pongpiachan, Siwatt.,...&Cao, Junji.(2019).High Contribution of Secondary Brown Carbon to Aerosol Light Absorption in the Southeastern Margin of Tibetan Plateau.GEOPHYSICAL RESEARCH LETTERS,46(9),4962-4970. |
MLA | Wang, Qiyuan,et al."High Contribution of Secondary Brown Carbon to Aerosol Light Absorption in the Southeastern Margin of Tibetan Plateau".GEOPHYSICAL RESEARCH LETTERS 46.9(2019):4962-4970. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论