Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-14339-2019 |
New particle formation and its effect on cloud condensation nuclei abundance in the summer Arctic: a case study in the Fram Strait and Barents Sea | |
Kecorius, Simonas1; Vogl, Teresa1,2; Paasonen, Pauli3; Lampilahti, Janne3; Rothenberg, Daniel4; Wex, Heike1; Zeppenfeld, Sebastian1; van Pinxteren, Manuela1; Hartmann, Markus1; Henning, Silvia1; Gong, Xianda1; Welti, Andre1; Kulmala, Markku3; Stratmann, Frank1; Herrmann, Hartmut1; Wiedensohler, Alfred1 | |
2019-11-27 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:22页码:14339-14364 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Finland; USA |
英文摘要 | In a warming Arctic the increased occurrence of new particle formation (NPF) is believed to originate from the declining ice coverage during summertime. Understanding the physico-chemical properties of newly formed particles, as well as mechanisms that control both particle formation and growth in this pristine environment, is important for interpreting aerosol-cloud interactions, to which the Arctic climate can be highly sensitive. In this investigation, we present the analysis of NPF and growth in the high summer Arctic. The measurements were made on-board research vessel Polarstern during the PS106 Arctic expedition. Four distinctive NPF and subsequent particle growth events were observed, during which particle (diameter in a range 10-50 nm) number concentrations increased from background values of approx. 40 up to 4000 cm(-3). Based on particle formation and growth rates, as well as hygroscopicity of nucleation and the Aitken mode particles, we distinguished two different types of NPF events. First, some NPF events were favored by negative ions, resulting in more-hygroscopic nucleation mode particles and suggesting sulfuric acid as a precursor gas. Second, other NPF events resulted in less-hygroscopic particles, indicating the influence of organic vapors on particle formation and growth. To test the climatic relevance of NPF and its influence on the cloud condensation nuclei (CCN) budget in the Arctic, we applied a zero-dimensional, adiabatic cloud parcel model. At an updraft velocity of 0.1 m s(-1), the particle number size distribution (PNSD) generated during nucleation processes resulted in an increase in the CCN number concentration by a factor of 2 to 5 compared to the background CCN concentrations. This result was confirmed by the directly measured CCN number concentrations. Although particles did not grow beyond 50 nm in diameter and the activated fraction of 15-50 nm particles was on average below 10 %, it could be shown that the sheer number of particles produced by the nucleation process is enough to significantly influence the background CCN number concentration. This implies that NPF can be an important source of CCN in the Arctic. However, more studies should be conducted in the future to understand mechanisms of NPF, sources of precursor gases and condensable vapors, as well as the role of the aged nucleation mode particles in Arctic cloud formation. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000499790500005 |
WOS关键词 | MARINE BOUNDARY-LAYER ; SIZE SPECTROMETERS ; AEROSOL-PARTICLES ; ATMOSPHERIC NANOPARTICLES ; HYGROSCOPIC PROPERTIES ; POLAR AMPLIFICATION ; RESEARCH STATION ; NEUTRAL CLUSTER ; ORGANIC AEROSOL ; SULFURIC-ACID |
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/224087 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Leibniz Inst Tropospher Res TROPOS, D-04318 Leipzig, Germany; 2.Univ Leipzig, Inst Meteorol, D-04103 Leipzig, Germany; 3.Univ Helsinki, Dept Phys, POB 64, FIN-00014 Helsinki, Finland; 4.ClimaCell Inc, Boston, MA 02210 USA |
推荐引用方式 GB/T 7714 | Kecorius, Simonas,Vogl, Teresa,Paasonen, Pauli,et al. New particle formation and its effect on cloud condensation nuclei abundance in the summer Arctic: a case study in the Fram Strait and Barents Sea[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(22):14339-14364. |
APA | Kecorius, Simonas.,Vogl, Teresa.,Paasonen, Pauli.,Lampilahti, Janne.,Rothenberg, Daniel.,...&Wiedensohler, Alfred.(2019).New particle formation and its effect on cloud condensation nuclei abundance in the summer Arctic: a case study in the Fram Strait and Barents Sea.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(22),14339-14364. |
MLA | Kecorius, Simonas,et al."New particle formation and its effect on cloud condensation nuclei abundance in the summer Arctic: a case study in the Fram Strait and Barents Sea".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.22(2019):14339-14364. |
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