气候变化领域集成服务门户(CCPortal): Composition and mixing state of Arctic aerosol and cloud residual particles from long-term sinale-particle observations at Zeppelin Observatory, Svalbard

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DOI	10.5194/acp-22-14421-2022
	Composition and mixing state of Arctic aerosol and cloud residual particles from long-term sinale-particle observations at Zeppelin Observatory, Svalbard
	Adachi, Kouji; Tobo, Yutaka; Koike, Makoto; Freitas, Gabriel; Zieger, Paul; Krejci, Radovan
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	14421
结束页码	14439
卷号	22 期号:21 页码:19
英文摘要	The Arctic region is sensitive to climate change and is warming faster than the global average. Aerosol particles change cloud properties by acting as cloud condensation nuclei and ice-nucleating particles, thus influencing the Arctic climate system. Therefore, understanding the aerosol particle properties in the Arctic is needed to interpret and simulate their influences on climate. In this study, we collected ambient aerosol particles using whole-air and PM10 inlets and residual particles of cloud droplets and ice crystals from Arctic low-level clouds (typically, all-liquid or mixed-phase clouds) using a counterflow virtual impactor inlet at the Zeppelin Observatory near Ny-Alesund, Svalbard, within a time frame of 4 years. We measured the composition and mixing state of individual fine-mode particles in 239 samples using transmission electron microscopy. On the basis of their composition, the aerosol and cloud residual particles were classified as mineral dust, sea salt, Kbearing, sulfate, and carbonaceous particles. The number fraction of aerosol particles showed seasonal changes, with sulfate dominating in summer and sea salt increasing in winter. There was no measurable difference in the fractions between ambient aerosol and cloud residual particles collected at ambient temperatures above 0 degrees C. On the other hand, cloud residual samples collected at ambient temperatures below 0 degrees C had several times more sea salt and mineral dust particles and fewer sulfates than ambient aerosol samples, suggesting that sea spray and mineral dust particles may influence the formation of cloud particles in Arctic mixed-phase clouds. We also found that 43 % of mineral dust particles from cloud residual samples were mixed with sea salt, whereas only 18 % of mineral dust particles in ambient aerosol samples were mixed with sea salt. This study highlights the variety in aerosol compositions and mixing states that influence or are influenced by aerosol-cloud interactions in Arctic low-level clouds.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000880659800001
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/273187
作者单位	Meteorological Research Institute - Japan; Research Organization of Information & Systems (ROIS); National Institute of Polar Research (NIPR) - Japan; Graduate University for Advanced Studies - Japan; University of Tokyo; Stockholm University; Stockholm University
推荐引用方式 GB/T 7714	Adachi, Kouji,Tobo, Yutaka,Koike, Makoto,et al. Composition and mixing state of Arctic aerosol and cloud residual particles from long-term sinale-particle observations at Zeppelin Observatory, Svalbard[J],2022,22(21):19.
APA	Adachi, Kouji,Tobo, Yutaka,Koike, Makoto,Freitas, Gabriel,Zieger, Paul,&Krejci, Radovan.(2022).Composition and mixing state of Arctic aerosol and cloud residual particles from long-term sinale-particle observations at Zeppelin Observatory, Svalbard.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(21),19.
MLA	Adachi, Kouji,et al."Composition and mixing state of Arctic aerosol and cloud residual particles from long-term sinale-particle observations at Zeppelin Observatory, Svalbard".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.21(2022):19.