photo: aqua/airs global carbon dioxide
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Global Distribution of CO2 in Mid Troposphere from the Atmospheric Infrared Sounder (AIRS) Measurements Reveal Cross Equator Exchange. - PowerPoint PPT PresentationTRANSCRIPT
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Global Distribution of CO2 in Mid Troposphere from Global Distribution of CO2 in Mid Troposphere from the Atmospheric Infrared Sounder (AIRS) the Atmospheric Infrared Sounder (AIRS) Measurements Reveal Cross Equator ExchangeMeasurements Reveal Cross Equator Exchange
Yuk L. YungYuk L. Yung1,*1,*, Run-Lie Shia, Run-Lie Shia11, Xun Jiang, Xun Jiang22, Mao-Chiang Liang, Mao-Chiang Liang33, , King-Fai LiKing-Fai Li11, Le Kuai, Le Kuai11, Charles E. Miller, Charles E. Miller44, Moustafa Chahine, Moustafa Chahine44, , Edward T. OlsenEdward T. Olsen44, Luke Chen, Luke Chen44
• Division of Geological and Planetary Sciences, California Institute of Technology, 150- 21 Division of Geological and Planetary Sciences, California Institute of Technology, 150- 21 Caltech, Pasadena, CA 91125Caltech, Pasadena, CA 91125
• Department of Earth and Atmospheric Sciences, University of Houston, The University of Department of Earth and Atmospheric Sciences, University of Houston, The University of Houston, 4800 Calhoun Rd., Houston, TX 77204Houston, 4800 Calhoun Rd., Houston, TX 77204
• Research Center for Environmental Changes, Academia Sinica, 128 Sec. 2, Academia Rd., Research Center for Environmental Changes, Academia Sinica, 128 Sec. 2, Academia Rd., Nankang, Taipei, 115, TaiwanNankang, Taipei, 115, Taiwan
• Science Division, Jet Propulsion Laboratory, California Institute of Technology, USA, Science Division, Jet Propulsion Laboratory, California Institute of Technology, USA, Science Division, Jet Propulsion Laboratory, Pasadena, CA 91109Science Division, Jet Propulsion Laboratory, Pasadena, CA 91109
Photo: Aqua/AIRS Global Carbon Dioxidehttp://svs.gsfc.nasa.gov/vis/a000000/a003400/a003440/index.html
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OutlineOutline
ModelsModels DataData TransportTransport
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Shia, Liang, Miller, Yung, GRL 2006
Seasonal CyclesSeasonal Cycles
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MozartMozart
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MozartMozart
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MozartMozart
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MozartMozart
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Mozart (3D)Mozart (3D) Boundary ConditionBoundary Condition
MozartMozart
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MozartMozart
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OutlineOutline
ModelsModels DataData TransportTransport
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Chahine et al. 2008
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Strow et al. 2007
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OutlineOutline
ModelsModels DataData TransportTransport
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Compare with Carbon TrackerCompare with Carbon Tracker
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Green=NH, Red=SH, Black=FluxGreen=NH, Red=SH, Black=Flux
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Fluxes from level 1 to 5Fluxes from level 1 to 5
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Green=NH, Red=SH, Black=FluxGreen=NH, Red=SH, Black=Flux
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SummarySummary
Data shows evidence for Data shows evidence for enhanced transportenhanced transport
Models shows COModels shows CO22 transport transport
in high tropospherein high troposphere Transport sensitive to KTransport sensitive to Kyy yy
(small scale processes)(small scale processes)
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Backup SlidesBackup Slides
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Table 1
Of the nearly 7 GT-C/yr net CO2 source created in N.H. 75% is transported into S.H. and 48% is absorbed by the surface of S.H.
Sensitivity Tests, 20% reduction of : Kyy => 10% decrease of the cross equator fluxKzz => 4%PSI => 1%
Distribution of S.H. sink 0-30 deg. S. 75% (source)30-60 deg. S. 30%60-90 deg. S. -5%
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Strow et al. 2007
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Chahine et al. 2008
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Yung et al., CO2 Exchange Across the EquatorAIRS Science Team Meeting 2009