Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-8571-2018 |
High summertime aerosol organic functional group concentrations from marine and seabird sources at Ross Island, Antarctica, during AWARE | |
Liu, Jun1; Dedrick, Jeramy1,5; Russell, Lynn M.1; Senum, Gunnar I.2; Uin, Janek2; Kuang, Chongai2; Springston, Stephen R.2; Leaitch, W. Richard3; Aiken, Allison C.4; Lubin, Dan1 | |
2018-06-18 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:12页码:8571-8587 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Canada |
英文摘要 | Observations of the organic components of the natural aerosol are scarce in Antarctica, which limits our understanding of natural aerosols and their connection to seasonal and spatial patterns of cloud albedo in the region. From November 2015 to December 2016, the ARM West Antarctic Radiation Experiment (AWARE) measured submicron aerosol properties near McMurdo Station at the southern tip of Ross Island. Submicron organic mass (OM), particle number, and cloud condensation nuclei concentrations were higher in summer than other seasons. The measurements included a range of compositions and concentrations that likely reflected both local anthropogenic emissions and natural background sources. We isolated the natural organic components by separating a natural factor and a local combustion factor. The natural OM was 150 times higher in summer than in winter. The local anthropogenic emissions were not hygroscopic and had little contribution to the CCN concentrations. Natural sources that included marine sea spray and seabird emissions contributed 56 % OM in summer but only 3 % in winter. The natural OM had high hydroxyl group fraction (55 %), 6 % alkane, and 6 % amine group mass, consistent with marine organic composition. In addition, the Fourier transform infrared (FTIR) spectra showed the natural sources of organic aerosol were characterized by amide group absorption, which may be from seabird populations. Carboxylic acid group contributions were high in summer and associated with natural sources, likely forming by secondary reactions. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000435484300006 |
WOS关键词 | SIZE-SEGREGATED AEROSOL ; SEA-SALT AEROSOL ; FOSSIL-FUEL COMBUSTION ; FREE AMINO-ACIDS ; MCMURDO-STATION ; SOUTH-POLE ; ATMOSPHERIC PARTICLES ; CHEMICAL-COMPOSITION ; HYGROSCOPIC GROWTH ; CONCORDIA SITE |
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/30537 |
专题 | 地球科学 |
作者单位 | 1.Univ Calif San Diego, Scripps Inst Oceanog, 9500 Gilman Dr, La Jolla, CA 92093 USA; 2.Brookhaven Natl Lab, Environm & Climate Sci Dept, Bldg 815-E, Upton, NY 11973 USA; 3.ECCC, Toronto, ON, Canada; 4.Los Alamos Natl Lab, Earth & Environm Sci Earth Syst Observat, Los Alamos, NM USA; 5.Texas A&M Univ, 400 Bizzell St, College Stn, TX 77843 USA |
推荐引用方式 GB/T 7714 | Liu, Jun,Dedrick, Jeramy,Russell, Lynn M.,et al. High summertime aerosol organic functional group concentrations from marine and seabird sources at Ross Island, Antarctica, during AWARE[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(12):8571-8587. |
APA | Liu, Jun.,Dedrick, Jeramy.,Russell, Lynn M..,Senum, Gunnar I..,Uin, Janek.,...&Lubin, Dan.(2018).High summertime aerosol organic functional group concentrations from marine and seabird sources at Ross Island, Antarctica, during AWARE.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(12),8571-8587. |
MLA | Liu, Jun,et al."High summertime aerosol organic functional group concentrations from marine and seabird sources at Ross Island, Antarctica, during AWARE".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.12(2018):8571-8587. |
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