气候变化领域集成服务门户(CCPortal): Anthropogenic Asian aerosols provide Fe to the North Pacific Ocean

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DOI	10.1073/pnas.2010315117
	Anthropogenic Asian aerosols provide Fe to the North Pacific Ocean
	Pinedo-González P.; Hawco N.J.; Bundy R.M.; Virginia Armbrust E.; Follows M.J.; Cael B.B.; White A.E.; Ferrón S.; Karl D.M.; John S.G.
发表日期	2020
ISSN	0027-8424
起始页码	27862
结束页码	27868
卷号	117 期号:45
英文摘要	Fossil-fuel emissions may impact phytoplankton primary productivity and carbon cycling by supplying bioavailable Fe to remote areas of the ocean via atmospheric aerosols. However, this pathway has not been confirmed by field observations of anthropogenic Fe in seawater. Here we present high-resolution trace-metal concentrations across the North Pacific Ocean (158°W from 25°to 42°N). A dissolved Fe maximum was observed around 35°N, coincident with high dissolved Pb and Pb isotope ratios matching Asian industrial sources and confirming recent aerosol deposition. Iron-stable isotopes reveal in situ evidence of anthropogenic Fe in seawater, with low δ56Fe (−0.23 > δ56Fe > −0.65) observed in the region that is most influenced by aerosol deposition. An isotope mass balance suggests that anthropogenic Fe contributes 21–59% of dissolved Fe measured between 35° and 40°N. Thus, anthropogenic aerosol Fe is likely to be an important Fe source to the North Pacific Ocean. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	anthropogenic aerosols; coal burning; iron isotopes; lead isotopes; Soluble iron
语种	英语
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/160736
作者单位	Pinedo-González, P., Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089, United States, Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, United States; Hawco, N.J., Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089, United States, Department of Oceanography, Daniel K. Inouye Center for Microbial Oceanography: Research and Education, University of Hawaii at Manoa, Honolulu, HI 96822, United States; Bundy, R.M., School of Oceanography, University of Washington, Seattle, WA 98195, United States; Virginia Armbrust, E., School of Oceanography, University of Washington, Seattle, WA 98195, United States; Follows, M.J., Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Cael, B.B., National Oceanography Centre, Southampton, SO14 3ZH, United Kingdom; White, A.E., Department of Oceanography, Daniel K. Inouye Center for Microbial Oceanography: ...
推荐引用方式 GB/T 7714	Pinedo-González P.,Hawco N.J.,Bundy R.M.,et al. Anthropogenic Asian aerosols provide Fe to the North Pacific Ocean[J],2020,117(45).
APA	Pinedo-González P..,Hawco N.J..,Bundy R.M..,Virginia Armbrust E..,Follows M.J..,...&John S.G..(2020).Anthropogenic Asian aerosols provide Fe to the North Pacific Ocean.Proceedings of the National Academy of Sciences of the United States of America,117(45).
MLA	Pinedo-González P.,et al."Anthropogenic Asian aerosols provide Fe to the North Pacific Ocean".Proceedings of the National Academy of Sciences of the United States of America 117.45(2020).