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DOI | 10.5194/acp-18-7815-2018 |
Radiative absorption enhancement of dust mixed with anthropogenic pollution over East Asia | |
Tian, Pengfei1,2; Zhang, Lei1; Ma, Jianmin2,3; Tang, Kai1; Xu, Lili1; Wang, Yuan4; Cao, Xianjie1; Liang, Jiening1; Ji, Yuemeng5; Jiang, Jonathan H.6; Yung, Yuk L.4; Zhang, Renyi5 | |
2018-06-04 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:11页码:7815-7825 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The particle mixing state plays a significant yet poorly quantified role in aerosol radiative forcing, especially for the mixing of dust (mineral absorbing) and anthropogenic pollution (black carbon absorbing) over East Asia. We have investigated the absorption enhancement of mixed-type aerosols over East Asia by using the Aerosol Robotic Network observations and radiative transfer model calculations. The mixed-type aerosols exhibit significantly enhanced absorbing ability than the corresponding unmixed dust and anthropogenic aerosols, as revealed in the spectral behavior of absorbing aerosol optical depth, single scattering albedo, and imaginary refractive index. The aerosol radiative efficiencies for the dust, mixed-type, and anthropogenic aerosols are -101.0, -112.9, and -98.3 Wm(-2) tau(-1) at the bottom of the atmosphere (BOA); -42.3, -22.5, and -39.8 Wm(-2) tau(-1) at the top of the atmosphere (TOA); and 58.7, 90.3, and 58.5 Wm(-2) tau(-1) in the atmosphere (ATM), respectively. The BOA cooling and ATM heating efficiencies of the mixed-type aerosols are significantly higher than those of the unmixed aerosol types over the East Asia region, resulting in atmospheric stabilization. In addition, the mixed-type aerosols correspond to a lower TOA cooling efficiency, indicating that the cooling effect by the corresponding individual aerosol components is partially counteracted. We conclude that the interaction between dust and anthropogenic pollution not only represents a viable aerosol formation pathway but also results in unfavorable dispersion conditions, both exacerbating the regional air pollution in East Asia. Our results highlight the necessity to accurately account for the mixing state of aerosols in atmospheric models over East Asia in order to better understand the formation mechanism for regional air pollution and to assess its impacts on human health, weather, and climate. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000434114200004 |
WOS关键词 | AEROSOL OPTICAL-PROPERTIES ; BLACK CARBON ; SULFURIC-ACID ; MIXING STATE ; HETEROGENEOUS REACTIONS ; CHEMICAL-COMPOSITION ; LIGHT-ABSORPTION ; PARTICLES ; HAZE ; SULFATE |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/16193 |
专题 | 地球科学 |
作者单位 | 1.Lanzhou Univ, Coll Atmospher Sci, Key Lab Semiarid Climate Change, Minist Educ, Lanzhou, Gansu, Peoples R China; 2.Lanzhou Univ, Key Lab Environm Pollut Predict & Control, Coll Earth & Environm Sci, Lanzhou, Gansu, Peoples R China; 3.Peking Univ, Coll Urban & Environm Sci, Lab Earth Surface Proc, Beijing, Peoples R China; 4.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA; 5.Texas A&M Univ, Dept Atmospher Sci, College Stn, TX 77843 USA; 6.CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91125 USA |
推荐引用方式 GB/T 7714 | Tian, Pengfei,Zhang, Lei,Ma, Jianmin,et al. Radiative absorption enhancement of dust mixed with anthropogenic pollution over East Asia[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(11):7815-7825. |
APA | Tian, Pengfei.,Zhang, Lei.,Ma, Jianmin.,Tang, Kai.,Xu, Lili.,...&Zhang, Renyi.(2018).Radiative absorption enhancement of dust mixed with anthropogenic pollution over East Asia.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(11),7815-7825. |
MLA | Tian, Pengfei,et al."Radiative absorption enhancement of dust mixed with anthropogenic pollution over East Asia".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.11(2018):7815-7825. |
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