Global CO 2 fluxes inferred from surface air-sample measurements and from TCCON retrievals of the CO 2 total column (original) (raw)

The research investigates global CO2 surface fluxes utilizing TCCON (Total Column Carbon Observing Network) CO2 column retrievals from 2009-2010. A variational inversion scheme relates these retrievals to surface fluxes, facilitating comparisons with classical inversions from surface air-sample measurements. The study evaluates seasonal cycles and regional budgets, highlighting the influence of model biases and measurement uncertainties on transport simulations, ultimately revealing reductions in flux uncertainty across various land regions, with significant insights into carbon dynamics.