Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-4477-2018 |
Measurements of aerosol and CCN properties in the Mackenzie River delta (Canadian Arctic) during spring-summer transition in May 2014 | |
Herenz, Paul1; Wex, Heike1; Henning, Silvia1; Kristensen, Thomas Bjerring1,5; Rubach, Florian2; Roth, Anja2; Borrmann, Stephan2; Bozem, Heiko3; Schulz, Hannes4; Stratmann, Frank1 | |
2018-04-04 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
![]() |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:7页码:4477-4496 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Sweden |
英文摘要 | Within the framework of the RACEPAC (Radiation-Aerosol-Cloud Experiment in the Arctic Circle) project, the Arctic aerosol, arriving at a ground-based station in Tuktoyaktuk (Mackenzie River delta area, Canada), was characterized during a period of 3 weeks in May 2014. Basic meteorological parameters and particle number size distributions (PNSDs) were observed and two distinct types of air masses were found. One type were typical Arctic haze air masses, termed accumulation-type air masses, characterized by a monomodal PNSD with a pronounced accumulation mode at sizes above 100 nm. These air masses were observed during a period when back trajectories indicate an air mass origin in the north-east of Canada. The other air mass type is characterized by a bimodal PNSD with a clear minimum around 90 nm and with an Aitken mode consisting of freshly formed aerosol particles. Back trajectories indicate that these air masses, termed Aitken-type air masses, originated from the North Pacific. In addition, the application of the PSCF receptor model shows that air masses with their origin in active fire areas in central Canada and Siberia, in areas of industrial anthropogenic pollution (Norilsk and Prudhoe Bay Oil Field) and the north-west Pacific have enhanced total particle number concentrations (N-CN). Generally, NCN ranged from 20 to 500 cm(-3), while cloud condensation nuclei (CCN) number concentrations were found to cover a range from less than 10 up to 250 cm(-3) for a supersaturation (SS) between 0.1 and 0.7 %. The hygroscopicity parameter kappa of the CCN was determined to be 0.23 on average and variations in kappa were largely attributed to measurement uncertainties. Furthermore, simultaneous PNSD measurements at the ground station and on the Polar 6 research aircraft were performed. We found a good agreement of ground-based PNSDs with those measured between 200 and 1200 m. During two of the four overflights, particle number concentrations at 3000 m were found to be up to 20 times higher than those measured below 2000 m; for one of these two flights, PNSDs measured above 2000 m showed a different shape than those measured at lower altitudes. This is indicative of long-range transport from lower latitudes into the Arctic that can advect aerosol from different regions in different heights. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000429122900001 |
WOS关键词 | MARINE BOUNDARY-LAYER ; SIZE DISTRIBUTIONS ; PARTICLE FORMATION ; SOURCE APPORTIONMENT ; ATMOSPHERIC AEROSOL ; OPTICAL-PROPERTIES ; ZEPPELIN STATION ; AIR-POLLUTION ; NY-ALESUND ; GROWTH |
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/30909 |
专题 | 地球科学 |
作者单位 | 1.Leibniz Inst Tropospher Res, Leipzig, Germany; 2.Max Planck Inst Chem, Particle Chem Dept, Mainz, Germany; 3.Johannes Gutenberg Univ Mainz, Inst Atmospher Phys, Mainz, Germany; 4.Helmholtz Ctr Polar & Marine Res, Alfred Wegener Inst, Bremerhaven, Germany; 5.Lund Univ, Div Nucl Phys, Box 118, S-22100 Lund, Sweden |
推荐引用方式 GB/T 7714 | Herenz, Paul,Wex, Heike,Henning, Silvia,et al. Measurements of aerosol and CCN properties in the Mackenzie River delta (Canadian Arctic) during spring-summer transition in May 2014[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(7):4477-4496. |
APA | Herenz, Paul.,Wex, Heike.,Henning, Silvia.,Kristensen, Thomas Bjerring.,Rubach, Florian.,...&Stratmann, Frank.(2018).Measurements of aerosol and CCN properties in the Mackenzie River delta (Canadian Arctic) during spring-summer transition in May 2014.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(7),4477-4496. |
MLA | Herenz, Paul,et al."Measurements of aerosol and CCN properties in the Mackenzie River delta (Canadian Arctic) during spring-summer transition in May 2014".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.7(2018):4477-4496. |
条目包含的文件 | 条目无相关文件。 |
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。
修改评论