Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-691-2018 |
MLS measurements of stratospheric hydrogen cyanide during the 2015-2016 El Nino event | |
Pumphrey, Hugh C.1; Glatthor, Norbert2; Bernath, Peter F.3,4; Boone, Christopher D.4; Hannigan, James W.5; Ortega, Ivan5; Livesey, Nathaniel J.6; Read, William G.6 | |
2018-01-19 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:2页码:691-703 |
文章类型 | Article |
语种 | 英语 |
国家 | Scotland; Germany; USA; Canada |
英文摘要 | It is known from ground-based measurements made during the 1982-1983 and 1997-1998 El Nino events that atmospheric hydrogen cyanide (HCN) tends to be higher during such years than at other times. The Microwave Limb Sounder (MLS) on the Aura satellite has been measuring HCN mixing ratios since launch in 2004; the measurements are ongoing at the time of writing. The winter of 20152016 saw the largest El Nino event since 1997-1998. We present MLS measurements of HCN in the lower stratosphere for the Aura mission to date, comparing the 20152016 El Nino period to the rest of the mission. HCN in 20152016 is higher than at any other time during the mission, but ground-based measurements suggest that it may have been even more elevated in 1997-1998. As the MLS HCN data are essentially unvalidated, we show them alongside data from the MIPAS and ACE-FTS instruments; the three instruments agree reasonably well in the tropical lower stratosphere. Global HCN emissions calculated from the Global Fire Emissions Database (GFED v4.1) database are much greater during large El Nino events and are greater in 19971998 than in 2015-2016, thereby showing good qualitative agreement with the measurements. Correlation between El Nino-Southern Oscillation (ENSO) indices, measured HCN, and GFED HCN emissions is less clear if the 2015-2016 event is excluded. In particular, the 2009-2010 winter had fairly strong El Nino conditions and fairly large GFED HCN emissions, but very little effect is observed in the MLS HCN. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000423021000001 |
WOS关键词 | FREE TROPOSPHERIC CO ; ATMOSPHERIC CHEMISTRY ; SOUTHERN-OSCILLATION ; EQUATORIAL PACIFIC ; EOS MLS ; HCN ; TRANSPORT ; POLLUTION ; FIRES ; EMISSIONS |
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/19531 |
专题 | 地球科学 |
作者单位 | 1.Univ Edinburgh, Sch GeoSci, Edinburgh, Midlothian, Scotland; 2.Karlsruher Inst Technol, Inst Meteorol & Klimaforsch, Karlsruhe, Germany; 3.Old Dominion Univ, Dept Chem & Biochem, Norfolk, VA 23508 USA; 4.Univ Waterloo, Dept Chem, Waterloo, ON N2L 3G1, Canada; 5.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA; 6.CALTECH, Jet Prop Lab, NASA, Pasadena, CA USA |
推荐引用方式 GB/T 7714 | Pumphrey, Hugh C.,Glatthor, Norbert,Bernath, Peter F.,et al. MLS measurements of stratospheric hydrogen cyanide during the 2015-2016 El Nino event[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(2):691-703. |
APA | Pumphrey, Hugh C..,Glatthor, Norbert.,Bernath, Peter F..,Boone, Christopher D..,Hannigan, James W..,...&Read, William G..(2018).MLS measurements of stratospheric hydrogen cyanide during the 2015-2016 El Nino event.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(2),691-703. |
MLA | Pumphrey, Hugh C.,et al."MLS measurements of stratospheric hydrogen cyanide during the 2015-2016 El Nino event".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.2(2018):691-703. |
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