Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL085706 |
Effects of Chemical Feedbacks on Decadal Methane Emissions Estimates | |
Nguyen, Newton H.1; Turner, Alexander J.2,3,4; Yin, Yi1; Prather, Michael J.5; Frankenberg, Christian1,4 | |
2020-02-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:3 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The coupled chemistry of methane, carbon monoxide (CO), and hydroxyl radical (OH) can modulate methane's 9-year lifetime. This is often ignored in methane flux inversions, and the impacts of neglecting interactive chemistry have not been quantified. Using a coupled-chemistry box model, we show that neglecting the effect of methane source perturbation on [OH] can lead to a 25% bias in estimating abrupt changes in methane sources after only 10 years. Further, large CO emissions, such as from biomass burning, can increase methane concentrations by extending the methane lifetime through impacts on [OH]. Finally, we quantify the biases of including (or excluding) coupled chemistry in the context of recent methane and CO trends. Decreasing CO concentrations, beginning in the 2000's, have notable impacts on methane flux inversions. Given these nonnegligible errors, decadal methane emissions inversions should incorporate chemical feedbacks for more robust methane trend analyses and source attributions. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000529107400040 |
WOS关键词 | INTERANNUAL VARIABILITY ; ATMOSPHERIC CHEMISTRY ; OH VARIABILITY ; FOSSIL-FUEL ; HYDROXYL ; CLIMATE ; GROWTH ; BUDGET ; MODEL ; CH4 |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/279573 |
专题 | 气候变化 |
作者单位 | 1.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA; 2.Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA; 3.Univ Calif Berkeley, Coll Chem, Berkeley, CA 94720 USA; 4.CALTECH, NASA Jet Prop Lab, Pasadena, CA 91125 USA; 5.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA USA |
推荐引用方式 GB/T 7714 | Nguyen, Newton H.,Turner, Alexander J.,Yin, Yi,et al. Effects of Chemical Feedbacks on Decadal Methane Emissions Estimates[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(3). |
APA | Nguyen, Newton H.,Turner, Alexander J.,Yin, Yi,Prather, Michael J.,&Frankenberg, Christian.(2020).Effects of Chemical Feedbacks on Decadal Methane Emissions Estimates.GEOPHYSICAL RESEARCH LETTERS,47(3). |
MLA | Nguyen, Newton H.,et al."Effects of Chemical Feedbacks on Decadal Methane Emissions Estimates".GEOPHYSICAL RESEARCH LETTERS 47.3(2020). |
条目包含的文件 | 条目无相关文件。 |
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