Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-4565-2017 |
A 15-year record of CO emissions constrained by MOPITT CO observations | |
Jiang, Zhe1,2; Worden, John R.1; Worden, Helen2; Deeter, Merritt2; Jones, Dylan B. A.3; Arellano, Avelino F.4; Henze, Daven K.5 | |
2017-04-06 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Canada |
英文摘要 | Long-term measurements from satellites and surface stations have demonstrated a decreasing trend of tropospheric carbon monoxide (CO) in the Northern Hemisphere over the past decade. Likely explanations for this decrease include changes in anthropogenic, fires, and/or biogenic emissions or changes in the primary chemical sink hydroxyl radical (OH). Using remotely sensed CO measurements from the Measurement of Pollution in the Troposphere (MOPITT) satellite instrument, in situ methyl chloroform (MCF) measurements from the World Data Centre for Greenhouse Gases (WDCGG) and the adjoint of the GEOS-Chem model, we estimate the change in global CO emissions from 2001 to 2015. We show that the loss rate of MCF varied by 0.2% in the past 15 years, indicating that changes in global OH distributions do not explain the recent decrease in CO. Our two-step inversion approach for estimating CO emissions is intended to mitigate the effect of bias errors in the MOPITT data as well as model errors in transport and chemistry, which are the primary factors contributing to the uncertainties when quantifying CO emissions using these remotely sensed data. Our results confirm that the decreasing trend of tropospheric CO in the Northern Hemisphere is due to decreasing CO emissions from anthropogenic and biomass burning sources. In particular, we find decreasing CO emissions from the United States and China in the past 15 years, and unchanged anthropogenic CO emissions from Europe since 2008. We find decreasing trends of biomass burning CO emissions from boreal North America, boreal Asia and South America, but little change over Africa. In contrast to prior results, we find that a positive trend in CO emissions is likely for India and southeast Asia. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000399401900001 |
WOS关键词 | TROPOSPHERIC CARBON-MONOXIDE ; HIGH-RESOLUTION ; INTERANNUAL VARIABILITY ; ATMOSPHERIC HYDROXYL ; FIRE EMISSIONS ; SATELLITE DATA ; GEOS-CHEM ; AURA TES ; EL-NINO ; OZONE |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/23932 |
专题 | 地球科学 |
作者单位 | 1.CALTECH, Jet Prop Lab, Pasadena, CA 91125 USA; 2.Natl Ctr Atmospher Res, Atmospher Chem Observat & Modeling Lab, POB 3000, Boulder, CO 80307 USA; 3.Univ Toronto, Dept Phys, Toronto, ON, Canada; 4.Univ Arizona, Dept Hydrol & Atmospher Sci, Tucson, AZ USA; 5.Univ Colorado, Dept Mech Engn, Boulder, CO 80309 USA |
推荐引用方式 GB/T 7714 | Jiang, Zhe,Worden, John R.,Worden, Helen,et al. A 15-year record of CO emissions constrained by MOPITT CO observations[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(7). |
APA | Jiang, Zhe.,Worden, John R..,Worden, Helen.,Deeter, Merritt.,Jones, Dylan B. A..,...&Henze, Daven K..(2017).A 15-year record of CO emissions constrained by MOPITT CO observations.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(7). |
MLA | Jiang, Zhe,et al."A 15-year record of CO emissions constrained by MOPITT CO observations".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.7(2017). |
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