气候变化领域集成服务门户(CCPortal): Simultaneous measurements of aerosol size distributions at three sites in the European high Arctic

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DOI	10.5194/acp-19-7377-2019
	Simultaneous measurements of aerosol size distributions at three sites in the European high Arctic
	Dall'osto M.; Beddows D.C.S.; Tunved P.; Harrison R.M.; Lupi A.; Vitale V.; Becagli S.; Traversi R.; Park K.-T.; Jun Yoon Y.; Massling A.; Skov H.; Lange R.; Strom J.; Krejci R.
发表日期	2019
ISSN	16807316
起始页码	7377
结束页码	7395
卷号	19 期号:11
英文摘要	Aerosols are an integral part of the Arctic climate system due to their direct interaction with radiation and indirect interaction through cloud formation. Understanding aerosol size distributions and their dynamics is crucial for the ability to predict these climate relevant effects. When of favourable size and composition, both long-rangetransported-and locally formed particles-may serve as cloud condensation nuclei (CCN). Small changes of composition or size may have a large impact on the low CCN concentrations currently characteristic of the Arctic environment. We present a cluster analysis of particle size distributions (PSDs; size range 8-500 nm) simultaneously collected from three high Arctic sites during a 3-year period (2013-2015). Two sites are located in the Svalbard archipelago: Zeppelin research station (ZEP; 474 m above ground) and the nearby Gruvebadet Observatory (GRU; about 2 km distance from Zeppelin, 67 m above ground). The third site (Villum Research Station at Station Nord, VRS; 30 m above ground) is 600 km west-northwest of Zeppelin, at the tip of northeastern Greenland. The GRU site is included in an inter-site comparison for the first time. K-means cluster analysis provided eight specific aerosol categories, further combined into broad PSD classes with similar characteristics, namely pristine low concentrations (12 %-14 % occurrence), new particle formation (16 %-32 %), Aitken (21 %-35 %) and accumulation (20 %-50 %). Confined for longer time periods by consolidated pack sea ice regions, the Greenland site GRU shows PSDs with lower ultrafine-mode aerosol concentrations during summer but higher accumulation-mode aerosol concentrations during winter, relative to the Svalbard sites. By association with chemical composition and cloud condensation nuclei properties, further conclusions can be derived. Three distinct types of accumulation-mode aerosol are observed during winter months. These are associated with sea spray (largest detectable sizes, > 400 nm), Arctic haze (main mode at 150 nm) and aged accumulation-mode (main mode at 220 nm) aerosols. In contrast, locally produced particles, most likely of marine biogenic origin, exhibit size distributions dominated by the nucleation and Aitken mode during summer months. The obtained data and analysis point towards future studies, including apportioning the relative contribution of primary and secondary aerosol formation pro cesses and elucidating anthropogenic aerosol dynamics and transport and removal processes across the Greenland Sea. In order to address important research questions in the Arctic on scales beyond a singular station or measurement events, it is imperative to continue strengthening international scientific cooperation. © 2019 Author(s).
语种	英语
scopus关键词	aerosol; aerosol composition; arctic environment; cloud condensation nucleus; concentration (composition); formation mechanism; measurement method; particle size; size distribution; Arctic; Arctic Ocean; Europe; Greenland Sea; Norwegian Sea
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144364
作者单位	Institute of Marine Science, Consejo Superior de Investigaciones Científicas (CSIC), Barcelona, Spain; National Centre for Atmospheric Science, Division of Environmental Health and Risk Management, School of Geography Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom; Department of Environmental Science and Analytical Chemistry, Bolin Centre for Climate Research, Stockholm University, Stockholm, 10691, Sweden; Institute of Atmospheric Sciences and Climate (CNR-ISAC), Bologna, 40129, Italy; Department of Chemistry, University of Florence, Via della Lastruccia 3, Sesto Fiorentino, Florence, 50019, Italy; Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon, 21990, South Korea; Arctic Research Centre, IClimate, Department of Environmental Science, Aarhus University, Roskilde, 4000, Denmark; Department of Environmental Sciences, Center of Excellence in Environmental Studies, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saud...
推荐引用方式 GB/T 7714	Dall'osto M.,Beddows D.C.S.,Tunved P.,et al. Simultaneous measurements of aerosol size distributions at three sites in the European high Arctic[J],2019,19(11).
APA	Dall'osto M..,Beddows D.C.S..,Tunved P..,Harrison R.M..,Lupi A..,...&Krejci R..(2019).Simultaneous measurements of aerosol size distributions at three sites in the European high Arctic.Atmospheric Chemistry and Physics,19(11).
MLA	Dall'osto M.,et al."Simultaneous measurements of aerosol size distributions at three sites in the European high Arctic".Atmospheric Chemistry and Physics 19.11(2019).