globalchange  > 气候变化与战略
DOI: 10.1073/pnas.2007260117
论文题名:
Constraining the atmospheric OCS budget from sulfur isotopes
作者: Hattori S.; Kamezaki K.; Yoshida N.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2020
卷: 117, 期:34
起始页码: 20447
结束页码: 20452
语种: 英语
英文关键词: Carbonyl sulfide ; Gross primary production ; Stratospheric sulfate aerosols ; Sulfur isotope
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
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.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164081
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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

Recommended Citation:
Hattori S.,Kamezaki K.,Yoshida N.. Constraining the atmospheric OCS budget from sulfur isotopes[J]. Proceedings of the National Academy of Sciences of the United States of America,2020-01-01,117(34)
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