DOI: 10.1002/grl.50717
论文题名: Analysis of satellite remote sensing observations of low ozone events in the tropical upper troposphere and links with convection
作者: Cooper M.J. ; Martin R.V. ; Livesey N.J. ; Degenstein D.A. ; Walker K.A.
刊名: Geophysical Research Letters
ISSN: 0094-8758
EISSN: 1944-8489
出版年: 2013
卷: 40, 期: 14 起始页码: 3761
结束页码: 3765
语种: 英语
英文关键词: convection
; ENSO
; ozone
; upper troposphere
Scopus关键词: Atmospheric chemistry experiment
; Chemical transport models
; ENSO
; Fourier transform spectrometers
; Madden-Julian oscillation
; Satellite observations
; Satellite remote sensing
; Upper troposphere
; Atmospheric chemistry
; Climatology
; Heat convection
; Infrared imaging
; Lakes
; Meteorological instruments
; Tropics
; Troposphere
; Ozone
; boundary layer
; concentration (composition)
; El Nino
; observational method
; ozone
; remote sensing
; satellite imagery
; troposphere
英文摘要: Satellite observations from three instruments (Microwave Limb Sounder, Optical Spectrograph and Infrared Imaging System, and Atmospheric Chemistry Experiment Fourier Transform Spectrometer) reveal coherent patterns of low ozone events (<20 ppb) in the tropical upper troposphere. Using a chemical transport model (GEOS-Chem), we find that these events result from deep convective processes that rapidly transport air with low ozone concentrations from the marine boundary layer. These events occur with greater frequency over the tropical South Pacific warm pool, which is consistent with ozonesonde observations. The satellite observations indicate spatial shifts in the frequency of low ozone events that we attribute to changes in convection. As the location of the warm pool shifts eastward during El Niño events, the location of the most frequent low ozone events in the satellite record follows. Mapping of low ozone events over time reveals eastward propagating systems resembling the Madden-Julian Oscillation. These observations and analyses strengthen the link between deep convection and ozone concentrations in the tropical upper troposphere. © 2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880441244&doi=10.1002%2fgrl.50717&partnerID=40&md5=30313498e98469283ec2c36615e659cc
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6022
Appears in Collections: 气候减缓与适应
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作者单位: Department of Physics and Atmospheric Science, Dalhousie University Nova, Halifax, NS B3H 4R2, Canada
Recommended Citation:
Cooper M.J.,Martin R.V.,Livesey N.J.,et al. Analysis of satellite remote sensing observations of low ozone events in the tropical upper troposphere and links with convection[J]. Geophysical Research Letters,2013-01-01,40(14).