气候变化领域集成服务门户(CCPortal): Atmospheric History of H2 Over the Past Century Reconstructed From South Pole Firn Air

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DOI	10.1029/2020GL087787
	Atmospheric History of H2 Over the Past Century Reconstructed From South Pole Firn Air
	Patterson J.D.; Aydin M.; Crotwell A.M.; Petron G.; Severinghaus J.P.; Saltzman E.S.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:14
英文摘要	Molecular hydrogen (H2) is an abundant and reactive constituent of Earth's atmosphere, with links to climate and air quality. Anthropogenic emissions of H2 are expected to rise as the use of H2 as an energy source increases. Documenting past variations in atmospheric H2 will help to validate current understanding of the global H2 budget. The modern instrumental record begins in the 1980s; there is little information about atmospheric H2 prior to that time. Here, we use firn air measurements from a 2001 South Pole campaign to reconstruct atmospheric H2 levels over the 20th century. Inversion of the measurements indicates that H2 over South Pole has increased from 350–540 ppb from 1910–2000. A biogeochemical box model indicates that the atmospheric burden of H2 increased by 37% over that time. The rise in H2 is consistent with increasing H2 emissions from fossil fuel combustion and increasing atmospheric production from methane oxidation. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Air quality; Budget control; Earth atmosphere; Fossil fuels; 20th century; Anthropogenic emissions; Biogeochemical; Box models; Energy source; Fossil fuel combustion; Methane oxidation; Molecular hydrogen; Poles; air quality; anthropogenic source; atmospheric pollution; hydrogen; oxidation; reconstruction; twentieth century; Antarctica; East Antarctica; South Pole
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170088
作者单位	Departments of Earth System Science and Chemistry, University of California, Irvine, CA, United States; Global Monitoring Division, Earth System Research Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, United States; Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States; Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, United States
推荐引用方式 GB/T 7714	Patterson J.D.,Aydin M.,Crotwell A.M.,et al. Atmospheric History of H2 Over the Past Century Reconstructed From South Pole Firn Air[J],2020,47(14).
APA	Patterson J.D.,Aydin M.,Crotwell A.M.,Petron G.,Severinghaus J.P.,&Saltzman E.S..(2020).Atmospheric History of H2 Over the Past Century Reconstructed From South Pole Firn Air.Geophysical Research Letters,47(14).
MLA	Patterson J.D.,et al."Atmospheric History of H2 Over the Past Century Reconstructed From South Pole Firn Air".Geophysical Research Letters 47.14(2020).