| DOI: | 10.1002/grl.50476
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| 论文题名: | Detection of methane depletion associated with stratospheric intrusion by atmospheric infrared sounder (AIRS) |
| 作者: | Xiong X.; Barnet C.; Maddy E.; Wofsy S.C.; Chen L.; Karion A.; Sweeney C.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9086
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| EISSN: | 1944-8817
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| 出版年: | 2013
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| 卷: | 40, 期:10 | | 起始页码: | 2455
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| 结束页码: | 2459
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| 语种: | 英语
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| 英文关键词: | AIRS
; methane
; stratospheric intrusion
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| Scopus关键词: | Aircraft measurement
; Atmospheric infrared sounders
; Atmospheric methanes
; Intrusion events
; Methane depletion
; Stratosphere-troposphere exchange
; stratospheric intrusion
; Thermal infrared
; Air
; Atmospheric chemistry
; Infrared devices
; Intrusion detection
; Methane
; NASA
; Sounding apparatus
; Troposphere
; Infrared instruments
; absorption
; AIRS
; concentration (composition)
; detection method
; methane
; mixing ratio
; ozone
; stratosphere
; tropopause
; upper atmosphere
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| 英文摘要: | Atmospheric methane (CH4) concentration in the mid-to-upper troposphere has been retrieved using atmospheric infrared sounder (AIRS) data on NASA EOS/AQUA. By selecting the AIRS strong CH4 absorption channels near 1306 cm-1, severe CH4 depletion was mapped during a stratospheric intrusion event on 27 March 2010. The areas with depleted CH 4 mixing ratio are collocated with enhanced ozone (O3) and low tropopause height. Aircraft measurements observed the depleted CH 4 and enhanced O3 down to 550 hPa. An estimate of the depleted CH4 amount which resulted from stratospheric intrusion is -54 to -67 Tg yr-1. This study suggests that the AIRS and/or other thermal infrared sounders can provide an observation of CH4 variation associated with stratospheric intrusion, a key unknown in CH4 budget, and this data set will be also useful for studying the stratosphere-troposphere exchange (STE). © 2013 American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879925455&doi=10.1002%2fgrl.50476&partnerID=40&md5=c4bf7f78664b7cbdc7000fb2079332f3
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6350
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| Appears in Collections: | 气候减缓与适应
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作者单位: | IMSG, NOAA Center for Satellite Applications and Research, College Park, MD, United States
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| Recommended Citation: | |
Xiong X.,Barnet C.,Maddy E.,et al. Detection of methane depletion associated with stratospheric intrusion by atmospheric infrared sounder (AIRS)[J]. Geophysical Research Letters,2013-01-01,40(10).
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