Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL074987 |
Chemical Feedback From Decreasing Carbon Monoxide Emissions | |
Gaubert, B.1; Worden, H. M.1; Arellano, A. F. J.2; Emmons, L. K.1; Tilmes, S.1; Barre, J.1; Alonso, S. Martinez1; Vitt, F.1; Anderson, J. L.3; Alkemade, F.4,5; Houweling, S.4,5; Edwards, D. P.1 | |
2017-10-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:19 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Netherlands |
英文摘要 | Understanding changes in the burden and growth rate of atmospheric methane (CH4) has been the focus of several recent studies but still lacks scientific consensus. Here we investigate the role of decreasing anthropogenic carbon monoxide (CO) emissions since 2002 on hydroxyl radical (OH) sinks and tropospheric CH4 loss. We quantify this impact by contrasting two model simulations for 2002-2013: (1) a Measurement of the Pollution in the Troposphere (MOPITT) CO reanalysis and (2) a Control-Run without CO assimilation. These simulations are performed with the Community Atmosphere Model with Chemistry of the Community Earth System Model fully coupled chemistry climate model with prescribed CH4 surface concentrations. The assimilation of MOPITT observations constrains the global CO burden, which significantly decreased over this period by similar to 20%. We find that this decrease results to (a) increase in CO chemical production, (b) higher CH4 oxidation by OH, and (c) similar to 8% shorter CH4 lifetime. We elucidate this coupling by a surrogate mechanism for CO-OH-CH4 that is quantified from the full chemistry simulations. |
英文关键词 | tropospheric composition data assimilation global chemistry transport model chemistry climate modeling air pollution |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000413921300052 |
WOS关键词 | DATA ASSIMILATION SYSTEM ; ATMOSPHERIC CHEMISTRY ; METHANE EMISSIONS ; SATELLITE DATA ; TROPOSPHERIC CHEMISTRY ; DECADAL TRENDS ; CLIMATE-CHANGE ; GLOBAL-MODEL ; CO EMISSIONS ; FOSSIL-FUEL |
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/26577 |
专题 | 气候变化 |
作者单位 | 1.Natl Ctr Atmospher Res, Atmospher Chem Observat & Modeling Lab, POB 3000, Boulder, CO 80307 USA; 2.Univ Arizona, Dept Hydrol & Atmospher Sci, Tucson, AZ USA; 3.Natl Ctr Atmospher Res, Inst Math Appl Geosci, POB 3000, Boulder, CO 80307 USA; 4.SRON Netherlands Inst Space Res, Utrecht, Netherlands; 5.Univ Utrecht, Inst Marine & Atmospher Res, Utrecht, Netherlands |
推荐引用方式 GB/T 7714 | Gaubert, B.,Worden, H. M.,Arellano, A. F. J.,et al. Chemical Feedback From Decreasing Carbon Monoxide Emissions[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(19). |
APA | Gaubert, B..,Worden, H. M..,Arellano, A. F. J..,Emmons, L. K..,Tilmes, S..,...&Edwards, D. P..(2017).Chemical Feedback From Decreasing Carbon Monoxide Emissions.GEOPHYSICAL RESEARCH LETTERS,44(19). |
MLA | Gaubert, B.,et al."Chemical Feedback From Decreasing Carbon Monoxide Emissions".GEOPHYSICAL RESEARCH LETTERS 44.19(2017). |
条目包含的文件 | 条目无相关文件。 |
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