Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL087787 |
Atmospheric history of H2 over the past century reconstructed from South Pole firn air | |
J. D. Patterson; M. Aydin; A. M. Crotwell; G. Petron; J. P. Severinghaus; E. S. Saltzman | |
2020-06-24 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
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 1980’s; 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 1905‐2000. A biogeochemical box model indicates that the atmospheric burden of H2 increased by 37% over that time. The rise in H2 is primarily attributed to increasing H2 emissions from fossil fuel combustion and increasing atmospheric production from methane oxidation. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/278101 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | J. D. Patterson,M. Aydin,A. M. Crotwell,et al. Atmospheric history of H2 over the past century reconstructed from South Pole firn air[J]. Geophysical Research Letters,2020. |
APA | J. D. Patterson,M. Aydin,A. M. Crotwell,G. Petron,J. P. Severinghaus,&E. S. Saltzman.(2020).Atmospheric history of H2 over the past century reconstructed from South Pole firn air.Geophysical Research Letters. |
MLA | J. D. Patterson,et al."Atmospheric history of H2 over the past century reconstructed from South Pole firn air".Geophysical Research Letters (2020). |
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