CO 2 Contrast due to Age of Stratospheric Air
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National Aeronautics and Space Administration
Jet Propulsion LaboratoryCalifornia Institute of TechnologyPasadena, California
Atmospheric Infrared Sounder
CO2 Contrast due toAge of Stratospheric Air
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Hall et al (1999), Evaluation of transport in stratospheric models, JGR., 104, 18815 Waugh and Hall (2002), Age of stratospheri air: theory, observations and models, Rev. Geophys., 40, 1010, doi:10.1029/2000RG000101
Age of stratospheric air vs altitudefor |latitude| ≤ 10°
Age of stratospheric air vs latitude as a function of altitude
CO2 ~ 5 ppm
CO2 ~ 11 ppm CO2 ~ 5ppm
CO2 = Trop-Strat
Contrast ~ 6 ppm
The concentration of CO2 in the stratosphere will be lower than in the troposphereby ~ 2 ppm for each year it lags behind due to interannual growth of tropospheric CO2