Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-7567-2017 |
Observations of bromine monoxide transport in the Arctic sustained on aerosol particles | |
Peterson, Peter K.1; Poehler, Denis2; Sihler, Holger2,3; Zielcke, Johannes2; General, Stephan2; Friess, Udo2; Platt, Ulrich2,3; Simpson, William R.4,5; Nghiem, Son V.6; Shepson, Paul B.7,8; Stirm, Brian H.9; Dhaniyala, Suresh10; Wagner, Thomas3; Caulton, Dana R.11; Fuentes, Jose D.12; Pratt, Kerri A.1,13 | |
2017-06-22 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Germany |
英文摘要 | The return of sunlight in the polar spring leads to the production of reactive halogen species from the surface snowpack, significantly altering the chemical composition of the Arctic near-surface atmosphere and the fate of long-range transported pollutants, including mercury. Recent work has shown the initial production of reactive bromine at the Arctic surface snowpack; however, we have limited knowledge of the vertical extent of this chemistry, as well as the lifetime and possible transport of reactive bromine aloft. Here, we present bromine monoxide (BrO) and aerosol particle measurements obtained during the March 2012 BRomine Ozone Mercury EXperiment (BROMEX) near Utqiagvik (Barrow), AK. The airborne differential optical absorption spectroscopy (DOAS) measurements provided an unprecedented level of spatial resolution, over 2 orders of magnitude greater than satellite observations and with vertical resolution unable to be achieved by satellite methods, for BrO in the Arctic. This novel method provided quantitative identification of a BrO plume, between 500m and 1 km aloft, moving at the speed of the air mass. Concurrent aerosol particle measurements suggest that this lofted reactive bromine plume was transported and maintained at elevated levels through heterogeneous reactions on colocated supermicron aerosol particles, independent of surface snowpack bromine chemistry. This chemical transport mechanism explains the large spatial extents often observed for reactive bromine chemistry, which impacts atmospheric composition and pollutant fate across the Arctic region, beyond areas of initial snowpack halogen production. The possibility of BrO enhancements disconnected from the surface potentially contributes to sustaining BrO in the free troposphere and must also be considered in the interpretation of satellite BrO column observations, particularly in the context of the rapidly changing Arctic sea ice and snowpack. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000404049500004 |
WOS关键词 | POLAR TROPOSPHERIC OZONE ; BOUNDARY-LAYER ; SEA-ICE ; DEPLETION EVENTS ; BRO COLUMNS ; WIND-SPEED ; MERCURY ; CHEMISTRY ; AIRBORNE ; SUNRISE |
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/23930 |
专题 | 地球科学 |
作者单位 | 1.Univ Michigan, Dept Chem, Ann Arbor, MI 48109 USA; 2.Heidelberg Univ, Inst Environm Phys, Heidelberg, Germany; 3.Max Planck Inst Chem, Mainz, Germany; 4.Univ Alaska Fairbanks, Dept Chem & Biochem, Fairbanks, AK USA; 5.Univ Alaska Fairbanks, Inst Geophys, Fairbanks, AK 99775 USA; 6.CALTECH, Jet Prop Lab, Pasadena, CA USA; 7.Purdue Univ, Dept Chem, Dept Earth Planetary & Atmospher Sci, W Lafayette, IN 47907 USA; 8.Purdue Univ, Purdue Climate Change Res Ctr, W Lafayette, IN 47907 USA; 9.Purdue Univ, Sch Aviat & Transportat Technol, W Lafayette, IN 47907 USA; 10.Clarkson Univ, Dept Mech & Aeronaut Engn, Potsdam, NY USA; 11.Princeton Univ, Dept Civil & Environm Engn, Princeton, NJ 08544 USA; 12.Penn State Univ, Dept Meteorol, 503 Walker Bldg, University Pk, PA 16802 USA; 13.Univ Michigan, Dept Earth & Environm Sci, Ann Arbor, MI 48109 USA |
推荐引用方式 GB/T 7714 | Peterson, Peter K.,Poehler, Denis,Sihler, Holger,et al. Observations of bromine monoxide transport in the Arctic sustained on aerosol particles[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(12). |
APA | Peterson, Peter K..,Poehler, Denis.,Sihler, Holger.,Zielcke, Johannes.,General, Stephan.,...&Pratt, Kerri A..(2017).Observations of bromine monoxide transport in the Arctic sustained on aerosol particles.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(12). |
MLA | Peterson, Peter K.,et al."Observations of bromine monoxide transport in the Arctic sustained on aerosol particles".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.12(2017). |
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