CO 2 flux history 1982–2001 inferred from atmospheric data using a global inversion of atmospheric transport

Abstract. Based on about 20 years of NOAA/CMDL's atmospheric CO2 concentration data and a global atmospheric tracer transport model, we estimate interannual variations and spatial patterns of surface CO2 fluxes in the period 01/1982-12/2000, by using a time-dependent Bayesian inversion technique. To increase the reliability of the estimated temporal features, particular care is exerted towards the selection of data records that are homogeneous in time. Fluxes are estimated on a grid-scale resolution (~8º latitude x 10º longitude), constrained by a-priori spatial correlations, and then integrated over different sets of regions. The transport model is driven by interannually varying re-analyzed meteorological…

• DK
  Deutsches Klimarechenzentrum
• BF
  Bundesministerium für Bildung und Forschung
• NO
  National Oceanic and Atmospheric Administration