气候变化领域集成服务门户(CCPortal): Compositions and mixing states of aerosol particles by aircraft observations in the Arctic springtime, 2018

CCPortal

DOI	10.5194/acp-21-3607-2021
	Compositions and mixing states of aerosol particles by aircraft observations in the Arctic springtime, 2018
	Adachi K.; Oshima N.; Ohata S.; Yoshida A.; Moteki N.; Koike M.
发表日期	2021
ISSN	1680-7316
起始页码	3607
结束页码	3626
卷号	21 期号:5
英文摘要	Aerosol particles were collected at various altitudes in the Arctic during the Polar Airborne Measurements and Arctic Regional Climate Model Simulation Project 2018 (PAMARCMiP 2018) conducted in the early spring of 2018. The composition, size, number fraction, and mixing state of individual aerosol particles were analyzed using transmission electron microscopy (TEM), and their sources and transport were evaluated by numerical model simulations. We found that sulfate, sea-salt, mineral-dust, K-bearing, and carbonaceous particles were the major aerosol constituents. Many particles were composed of two or more compositions that had coagulated and were coated with sulfate, organic materials, or both. The number fraction of mineral-dust and sea-salt particles decreased with increasing altitude. The K-bearing particles increased within a biomass burning (BB) plume at altitudes > 3900 m, which originated from Siberia. Chlorine in sea-salt particles was replaced with sulfate at high altitudes. These results suggest that the sources, transport, and aging of Arctic aerosols largely vary depending on the altitude and air-mass history. We also provide the occurrences of solid-particle inclusions (soot, fly-ash, and Fe-aggregate particles), some of which are light-absorbing particles. They were mainly emitted from anthropogenic and biomass burning sources and were embedded within other relatively large host particles. Our TEM measurements revealed the detailed mixing state of individual particles at various altitudes in the Arctic. This information facilitates the accurate evaluation of the aerosol influences on Arctic haze, radiation balance, cloud formation, and snow/ice albedo when deposited. © 2021 BMJ Publishing Group. All rights reserved.
语种	英语
scopus关键词	aerosol; aerosol composition; airborne survey; mineral dust; mixing; particle size; particulate matter; sea salt; spring (season); sulfate; Arctic
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/247079
作者单位	Department of Atmosphere, Ocean, and Earth System Modeling Research, Meteorological Research Institute, Tsukuba, Japan; Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, Tokyo, Japan; Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan; Institute for Advanced Research, Nagoya University, Nagoya, Japan
推荐引用方式 GB/T 7714	Adachi K.,Oshima N.,Ohata S.,et al. Compositions and mixing states of aerosol particles by aircraft observations in the Arctic springtime, 2018[J],2021,21(5).
APA	Adachi K.,Oshima N.,Ohata S.,Yoshida A.,Moteki N.,&Koike M..(2021).Compositions and mixing states of aerosol particles by aircraft observations in the Arctic springtime, 2018.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(5).
MLA	Adachi K.,et al."Compositions and mixing states of aerosol particles by aircraft observations in the Arctic springtime, 2018".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.5(2021).