Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL085101 |
Reconstruction of Paleofire Emissions Over the Past Millennium From Measurements of Ice Core Acetylene | |
Nicewonger, Melinda R.1; Aydin, Murat1; Prather, Michael J.1; Saltzman, Eric S.1,2 | |
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 | Acetylene is a short-lived trace gas produced during combustion of fossil fuels, biomass, and biofuels. Biomass burning is likely the only major source of acetylene in the preindustrial atmosphere, making ice core acetylene a powerful tool for reconstructing paleofire emissions. Here we present a 2,000-year atmospheric record of acetylene reconstructed from analysis of air bubbles trapped in Greenland and Antarctic ice cores and infer pyrogenic acetylene emissions using a chemistry transport model. From 0 to 1500 CE, Antarctic acetylene averages 36 +/- 1 pmol mol(-1) (mean +/- 1 SE), roughly double the annual mean over Antarctica today. Antarctic acetylene declines during the Little Ice Age by over 50% to 17 +/- 2 pmol mol-1 from 1650 to 1750 CE. Acetylene over Greenland declines less dramatically over the same period. Modeling results suggest that pyrogenic acetylene emissions during 1000-1500 CE were sustained at rates significantly greater than modern day and declined by over 50% during the 1650-1750 CE period. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000529107400020 |
WOS关键词 | BIOMASS BURNING EMISSIONS ; WD2014 CHRONOLOGY ; NATURAL-GAS ; AGE SCALE ; METHANE ; FIRE ; PREINDUSTRIAL ; CLIMATE ; TEMPERATURE ; GREENLAND |
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/279581 |
专题 | 气候变化 |
作者单位 | 1.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA; 2.Univ Calif Irvine, Dept Chem, Irvine, CA 92717 USA |
推荐引用方式 GB/T 7714 | Nicewonger, Melinda R.,Aydin, Murat,Prather, Michael J.,et al. Reconstruction of Paleofire Emissions Over the Past Millennium From Measurements of Ice Core Acetylene[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(3). |
APA | Nicewonger, Melinda R.,Aydin, Murat,Prather, Michael J.,&Saltzman, Eric S..(2020).Reconstruction of Paleofire Emissions Over the Past Millennium From Measurements of Ice Core Acetylene.GEOPHYSICAL RESEARCH LETTERS,47(3). |
MLA | Nicewonger, Melinda R.,et al."Reconstruction of Paleofire Emissions Over the Past Millennium From Measurements of Ice Core Acetylene".GEOPHYSICAL RESEARCH LETTERS 47.3(2020). |
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