Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-8757-2017 |
Boundary layer and free-tropospheric dimethyl sulfide in the Arctic spring and summer | |
Ghahremaninezhad, Roghayeh1,9; Norman, Ann-Lise1; Croft, Betty2; Martin, Randall V.2; Pierce, Jeffrey R.3; Burkart, Julia4; Rempillo, Ofelia1; Bozem, Heiko5; Kunkel, Daniel5; Thomas, Jennie L.6; Aliabadi, Amir A.7; Wentworth, Gregory R.4; Levasseur, Maurice8; Staebler, Ralf M.9; Sharma, Sangeeta9; Leaitch, W. Richard9 | |
2017-07-18 | |
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:14 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada; USA; Germany; France |
英文摘要 | Vertical distributions of atmospheric dimethyl sulfide (DMS(g)) were sampled aboard the research aircraft Polar 6 near Lancaster Sound, Nunavut, Canada, in July 2014 and on pan-Arctic flights in April 2015 that started from Longyearbyen, Spitzbergen, and passed through Alert and Eureka, Nunavut, and Inuvik, Northwest Territories. Larger mean DMS(g) mixing ratios were present during April 2015 (campaign mean of 116 +/- 8 pptv) compared to July 2014 (campaign mean of 20 +/- 6 pptv). During July 2014, the largest mixing ratios were found near the surface over the ice edge and open water. DMS(g) mixing ratios decreased with altitude up to about 3 km. During April 2015, profiles of DMS(g) were more uniform with height and some profiles showed an increase with altitude. DMS reached as high as 100 pptv near 2500 m. Relative to the observation averages, GEOS-Chem (www. geos-chem.org) chemical transport model simulations were higher during July and lower during April. Based on the simulations, more than 90% of the July DMS(g) below 2 km and more than 90% of the April DMS(g) originated from Arctic seawater (north of 66 degrees N). During April, 60% of the DMS(g), between 500 and 3000 m originated from Arctic seawater. During July 2014, FLEXPART (FLEXible PAR-Ticle dispersion model) simulations locate the sampled air mass over Baffin Bay and the Canadian Arctic Archipelago 4 days back from the observations. During April 2015, the locations of the air masses 4 days back from sampling were varied: Baffin Bay/Canadian Archipelago, the Arctic Ocean, Greenland and the Pacific Ocean. Our results highlight the role of open water below the flight as the source of DMS(g) during July 2014 and the influence of long-range transport (LRT) of DMS(g) from further afield in the Arctic above 2500 m during April 2015. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000405773900003 |
WOS关键词 | CLOUD CONDENSATION NUCLEI ; CARBONACEOUS AEROSOLS ; OCEANIC PHYTOPLANKTON ; UNITED-STATES ; MINERAL DUST ; TRACE GASES ; PARTICLES ; SULFATE ; ATMOSPHERE ; SULFUR |
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/30634 |
专题 | 地球科学 |
作者单位 | 1.Univ Calgary, Dept Phys & Astron, Calgary, AB, Canada; 2.Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS, Canada; 3.Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA; 4.Univ Toronto, Dept Chem, Toronto, ON, Canada; 5.Johannes Gutenberg Univ Mainz, Inst Atmospher Phys, Mainz, Germany; 6.Univ Versailles St Quentin, CNRS, Sorbonne Univ, UPMC Univ Paris 06,UMR8190,LATMOS IPSL,INSU, Paris, France; 7.Univ Guelph, Sch Engn, Environm Engn Program, Guelph, ON, Canada; 8.Laval Univ, Dept Biol, Quebec City, PQ, Canada; 9.Environm & Climate Change Canada, Toronto, ON, Canada |
推荐引用方式 GB/T 7714 | Ghahremaninezhad, Roghayeh,Norman, Ann-Lise,Croft, Betty,et al. Boundary layer and free-tropospheric dimethyl sulfide in the Arctic spring and summer[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(14). |
APA | Ghahremaninezhad, Roghayeh.,Norman, Ann-Lise.,Croft, Betty.,Martin, Randall V..,Pierce, Jeffrey R..,...&Leaitch, W. Richard.(2017).Boundary layer and free-tropospheric dimethyl sulfide in the Arctic spring and summer.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(14). |
MLA | Ghahremaninezhad, Roghayeh,et al."Boundary layer and free-tropospheric dimethyl sulfide in the Arctic spring and summer".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.14(2017). |
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