Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL074553 |
Anthropogenic pollution elevates the peak height of new particle formation from planetary boundary layer to lower free troposphere | |
Quan, Jiannong1,2,3; Liu, Yangang3; Liu, Quan1,2; Jia, Xingcan1,2; Li, Xia2; Gao, Yang2; Ding, Deping2; Li, Jie4; Wang, Zifa4 | |
2017-07-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:14 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | New particle formation (NPF) and subsequent growth are primary sources of atmospheric aerosol particles and cloud condensation nuclei. Previous studies have been conducted in relatively clean environments; investigation of NPF events over highly polluted megacities is still lacking. Here we show, based on a recent yearlong aircraft campaign conducted over Beijing, China, from April 2011 to June 2012, that NPF occurrence peaks in the lower free troposphere (LT), instead of planetary boundary layer (PBL), as most previous studies have found and that the distance of NPF peak to PBL top increases with increasing aerosol loading. Further analysis reveals that increased aerosols suppress NPF in PBL, but enhance NPF in LT due to a complex chain of aerosol-radiation-photochemistry interactions that affect both NPF sources and sinks. These findings shed new light on our understanding of NPF occurrence, NPF vertical distribution, and thus their effects on atmospheric photochemistry, clouds, and climate. Plain Language Summary Comparing with planetary boundary layer (PBL) and upper free troposphere (UT), the lower free troposphere (LT) is thought as weak new particle formation (NPF) region, where particles are thus thought to be either uptransported from PBL or downtransported from UT. Whereas, such distribution seems to be changed under highly aerosol-polluted regions. Our observations collected during a yearlong (April 2011 to June 2012) aircraft field campaign over Beijing, China, show that NPF peak region has been elevated from PBL to LT. Further analysis reveals that increased aerosols suppress NPF in PBL but enhance NPF in LT due to a complex chain of aerosol-radiation-photochemistry interactions that affect both NPF sources and sinks. These findings shed new light on our understanding of NPF occurrence, NPF vertical distribution, and thus their effects on atmospheric photochemistry, clouds, and climate. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407790500050 |
WOS关键词 | NUCLEATION MODE PARTICLES ; FORMATION EVENTS ; ATMOSPHERIC OXIDATION ; AIRBORNE MEASUREMENTS ; NUMBER CONCENTRATIONS ; VERTICAL EXTENT ; AEROSOL ; IMPACT ; GROWTH ; CCN |
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/26272 |
专题 | 气候变化 |
作者单位 | 1.Chinese Meteorol Adm, Inst Urban Meteorol, Beijing, Peoples R China; 2.Beijing Key Lab Cloud Precipitat & Atmospher Wate, Beijing, Peoples R China; 3.Brookhaven Natl Lab, Upton, NY 11973 USA; 4.Chinese Acad Sci, Inst Atmospher Phys, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Quan, Jiannong,Liu, Yangang,Liu, Quan,et al. Anthropogenic pollution elevates the peak height of new particle formation from planetary boundary layer to lower free troposphere[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(14). |
APA | Quan, Jiannong.,Liu, Yangang.,Liu, Quan.,Jia, Xingcan.,Li, Xia.,...&Wang, Zifa.(2017).Anthropogenic pollution elevates the peak height of new particle formation from planetary boundary layer to lower free troposphere.GEOPHYSICAL RESEARCH LETTERS,44(14). |
MLA | Quan, Jiannong,et al."Anthropogenic pollution elevates the peak height of new particle formation from planetary boundary layer to lower free troposphere".GEOPHYSICAL RESEARCH LETTERS 44.14(2017). |
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