Problem: Distribution of free Troposphere CO2 is a significant uncertainty in estimating "Top-Down" CO2 surface fluxes owing to transport and mixing errors. The TES sensitivity to lower tropospheric CO2 provides significant constraints on surface CO2 fluxes.
TES CO2 data are being used to estimate CO2 surface fluxes
Stephens et al., 2007, Science
Kulawik et al., Atmos. Chem. Phys. Disc., 2010
Nassar et al., AGU Presentation 2010