IEECAS OpenIR  > 粉尘与环境研究室
Black carbon aerosol in winter northeastern Qinghai–TibetanPlateau, China: the source, mixing state and optical property
Wang,QY(Wang,Qiyuan)[1]; Huang,RJ(Huang,Rujin)[1,2,3]; Cao,JJ(Cao,Junji)[1,5]; Tie,XX(Tie,Xuexi)[1]; Ni,HY(Ni,Haiyan)[1]; Zhou,YQ[1]; Han,YM(Han,Yongming)[1]; Hu,TF(Hu,Tafeng)[1]; Zhu,CS[1]; Feng,T[4,5]; Li,N[6]; Li,JD[1]
2015-11
发表期刊Atmospheric Chemistry & Physics
卷号15期号:22页码:13059
文章类型期刊论文
摘要

Black carbon (BC) aerosol at high altitudes of the Qinghai-Tibetan Plateau has potential effects on the regional climate and hydrological cycle. An intensive measurement campaign was conducted at Qinghai Lake (~3200m above sea level) at the edge of the northeastern Qinghai- Tibetan Plateau during winter using a ground-based single particle soot photometer (SP2) and a photoacoustic extinctiometer (PAX). The average concentration of refractory BC (rBC) and number fraction of coated rBC were found to be 160±190 ngm-3 and 59% for the entire campaign, respectively. Significant enhancements of rBC loadings and number fraction of coated rBC were observed during a pollution episode, with an average value of 390 ngm-3 and 65%, respectively. The mass size distribution of rBC particles showed log-normal distribution, with a peak diameter of ~187 nm regardless of the pollution level. Five-day backward trajectory analysis suggests that the air masses from north India contributed to the increased rBC loadings during the campaign. The potential source contribution function (PSCF) model combined with the fire counts map further proves that biomass burning from north India is an important potential source influencing the northeastern Qinghai-Tibetan Plateau during the pollution episode. The rBC mass absorption cross section (MACrBC/ at λ = 532 nm was slightly larger in clean days (14.9m² g-1) than during the pollution episode (9.3m² g-1), likely due to the effects of brown carbon and the uncertainty of the MACrBC calculation. The MACrBC was positively correlated with number fraction of coated rBC during the pollution episode with an increasing rate of 0.18 (m² g-1)%-1. The number fraction of coated rBC particles showed positive correlation with light absorption, suggesting that the increase of coated rBC particles will enhance the light absorption. Compared to rBC mass concentration, rBC mixing sate is more important in determining absorption during the pollution episode, estimated from the same percentage-wise increment of either rBC mass concentration or the number fraction of coated rBC. The estimated BC direct radiative forcing was C0.93Wm-2 for the pollution episode, which is 2 times larger than that in clean days. Our study provides insight into the potential climatic impacts of rBC aerosol transported to the Qinghai-Tibetan Plateau from south Asian regions, and is also useful for future modeling studies.

DOI10.5194/acp-15-13059-2015
收录类别SCI
语种英语
引用统计
被引频次:16[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9436
专题粉尘与环境研究室
作者单位1.Key Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences,Xi’an 710061, China;
2.Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI), 5232 Villigen, Switzerland;
3.Centre for Climate and Air Pollution Studies, Ryan Institute, National University of Ireland Galway, University Road,Galway, Ireland;
4.School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710054, China;
5.Institute of Global Environmental Change, Xi’an Jiaotong University, Xi’an 710049, China;
6.National Taiwan University, Department of Atmospheric Sciences, Taipei 10617, Taiwan
推荐引用方式
GB/T 7714
Wang,QY(Wang,Qiyuan)[1],Huang,RJ(Huang,Rujin)[1,2,3],Cao,JJ(Cao,Junji)[1,5],等. Black carbon aerosol in winter northeastern Qinghai–TibetanPlateau, China: the source, mixing state and optical property[J]. Atmospheric Chemistry & Physics,2015,15(22):13059.
APA Wang,QY.,Huang,RJ.,Cao,JJ.,Tie,XX.,Ni,HY.,...&Li,JD[1].(2015).Black carbon aerosol in winter northeastern Qinghai–TibetanPlateau, China: the source, mixing state and optical property.Atmospheric Chemistry & Physics,15(22),13059.
MLA Wang,QY,et al."Black carbon aerosol in winter northeastern Qinghai–TibetanPlateau, China: the source, mixing state and optical property".Atmospheric Chemistry & Physics 15.22(2015):13059.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Black carbon aerosol(1786KB)期刊论文作者接受稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Wang,QY(Wang,Qiyuan)[1]]的文章
[Huang,RJ(Huang,Rujin)[1,2,3]]的文章
[Cao,JJ(Cao,Junji)[1,5]]的文章
百度学术
百度学术中相似的文章
[Wang,QY(Wang,Qiyuan)[1]]的文章
[Huang,RJ(Huang,Rujin)[1,2,3]]的文章
[Cao,JJ(Cao,Junji)[1,5]]的文章
必应学术
必应学术中相似的文章
[Wang,QY(Wang,Qiyuan)[1]]的文章
[Huang,RJ(Huang,Rujin)[1,2,3]]的文章
[Cao,JJ(Cao,Junji)[1,5]]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

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。