气候变化领域集成服务门户(CCPortal): Constraining the atmospheric OCS budget from sulfur isotopes

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DOI	10.1073/pnas.2007260117
	Constraining the atmospheric OCS budget from sulfur isotopes
	Hattori S.; Kamezaki K.; Yoshida N.
发表日期	2020
ISSN	0027-8424
起始页码	20447
结束页码	20452
卷号	117 期号:34
英文摘要	Carbonyl sulfide (OCS), the most abundant sulfur-containing gas in the atmosphere, is used as a proxy for photosynthesis rate estimation. However, a large missing source of atmospheric OCS has been inferred. Sulfur isotope measurements (34S/32S ratio and δ34S) on OCS are a feasible tool to distinguish OCS sources from oceanic and anthropogenic emissions. Here we present the latitudinal (north–south) observations of OCS concentration and δ34S within Japan. The observed δ34S of OCS of 9.7 to 14.5‰ reflects source and sink effects. Particularly in winter, latitudinal decreases in δ34S values of OCS were found to be correlated with increases in OCS concentrations, resulting an intercept of (4.7 ± 0.8)‰ in the Keeling plot approach. This result implies the transport of anthropogenic OCS emissions from the Asian continent to the western Pacific by the Asian monsoon outflow. The estimated background δ34S of OCS in eastern Asia is consistent with the δ34S of OCS previously reported in Israel and the Canary Islands, suggesting that the background δ34S of OCS in the Northern Hemisphere ranges from 12.0 to 13.5‰. Our constructed sulfur isotopic mass balance of OCS revealed that anthropogenic sources, not merely oceanic sources, account for much of the missing source of atmospheric OCS. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Carbonyl sulfide; Gross primary production; Stratospheric sulfate aerosols; Sulfur isotope
语种	英语
scopus关键词	carbonyl derivative; carbonyl sulfide; isotope; sulfide; sulfur; unclassified drug; air pollution control; air sampling; Article; atmosphere; atmospheric pressure; atmospheric transport; biomass; controlled study; global change; Japan; latitude; priority journal; quantitative analysis; seasonal variation
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160839
作者单位	Hattori, S., Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Yokohama, 226-8502, Japan; Kamezaki, K., Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Yokohama, 226-8502, Japan; Yoshida, N., Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Yokohama, 226-8502, Japan, Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo, 152-8550, Japan
推荐引用方式 GB/T 7714	Hattori S.,Kamezaki K.,Yoshida N.. Constraining the atmospheric OCS budget from sulfur isotopes[J],2020,117(34).
APA	Hattori S.,Kamezaki K.,&Yoshida N..(2020).Constraining the atmospheric OCS budget from sulfur isotopes.Proceedings of the National Academy of Sciences of the United States of America,117(34).
MLA	Hattori S.,et al."Constraining the atmospheric OCS budget from sulfur isotopes".Proceedings of the National Academy of Sciences of the United States of America 117.34(2020).