气候变化领域集成服务门户(CCPortal): Abundances and Microphysical Properties of Light-Absorbing Iron Oxide and Black Carbon Aerosols Over East Asia and the Arctic

CCPortal

DOI	10.1029/2019JD032301
	Abundances and Microphysical Properties of Light-Absorbing Iron Oxide and Black Carbon Aerosols Over East Asia and the Arctic
	Yoshida A.; Moteki N.; Ohata S.; Mori T.; Koike M.; Kondo Y.; Matsui H.; Oshima N.; Takami A.; Kita K.
发表日期	2020
ISSN	2169897X
卷号	125 期号:15
英文摘要	Black carbon (BC), brown carbon, and light-absorbing iron oxides (FeOx) aerosols affect Earth's energy budget through their strong absorption of solar radiation. FeOx aerosols can also affect global biogeochemical cycles through their role as a nutrient for oceanic phytoplankton. However, observational data for these aerosols required for evaluating their effects using global models are scarce, especially for FeOx. Here, we summarize and compare the data sets of BC and FeOx from five ground-based and three aircraft observation campaigns conducted in the East Asian and Arctic regions during the 2009–2018 period acquired using a modified single-particle soot photometer. In these campaigns, >80% of FeOx-containing aerosols in the 170–270 nm FeOx core size range had microphysical features indicating an anthropogenic origin. The particle size distribution for each of the BC and FeOx was similar in all of the data sets except for those dominated by fresh urban pollution or pristine Arctic air. The campaign-averaged mass concentrations of FeOx and BC were ~60–360 ng/m3 and ~240–1,300 ng/m3, respectively, in East Asia, and ~6 ng/m3 and ~20–30 ng/m3, respectively, in the Arctic. The campaign-averaged FeOx/BC mass concentration ratio varied within a narrow range of 0.2–0.6 in both East Asian and Arctic regions. In every campaign, FeOx, BC, and carbon monoxide were tightly correlated with each other with similar slope to the urban campaigns (around Tokyo), implying the spatiotemporal variation of anthropogenic FeOx emission around northern middle-to-high latitudes is similar to those of anthropogenic BC and CO emissions. © 2020. The Authors.
英文关键词	Arctic; black carbon; East Asia; iron oxide; single-particle soot photometer
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185878
作者单位	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; Department of Physics, Faculty of Science Division I, Tokyo University of Science, Tokyo, Japan; National Institute of Polar Research, Tokyo, Japan; Graduate School of Environmental Studies, Nagoya University, Nagoya, Japan; Meteorological Research Institute, Tsukuba, Japan; National Institute of Environmental Studies, Tsukuba, Japan; Faculty of Science, Ibaraki University, Mito, Japan
推荐引用方式 GB/T 7714	Yoshida A.,Moteki N.,Ohata S.,et al. Abundances and Microphysical Properties of Light-Absorbing Iron Oxide and Black Carbon Aerosols Over East Asia and the Arctic[J],2020,125(15).
APA	Yoshida A..,Moteki N..,Ohata S..,Mori T..,Koike M..,...&Kita K..(2020).Abundances and Microphysical Properties of Light-Absorbing Iron Oxide and Black Carbon Aerosols Over East Asia and the Arctic.Journal of Geophysical Research: Atmospheres,125(15).
MLA	Yoshida A.,et al."Abundances and Microphysical Properties of Light-Absorbing Iron Oxide and Black Carbon Aerosols Over East Asia and the Arctic".Journal of Geophysical Research: Atmospheres 125.15(2020).