Annual Fossil-Fuel CO₂ Emissions: Global and Gridded del ¹³C Estimates

Digital Data    Global Text Documentation    Gridded Text Documentation

Contributors

R.J. Andres, T.A. Boden, and G. Marland

DOI

DOI: 10.3334/CDIAC/ffe.db1013.2009

The 2009 revision of this database contains estimates of the annual mean value of del ¹³C of CO₂ emissions from fossil-fuel consumption and cement manufacture for 1751-2006. It also contains 1° x 1° maps of del ¹³C over the same period. These estimates of the carbon isotopic signature account for the changing mix of coal, petroleum, and natural gas being consumed and for the changing mix of petroleum from various producing areas with characteristic isotopic signatures. This time series of fossil-fuel del ¹³C signature provides an additional constraint for balancing the sources and sinks of the global carbon cycle and complements the atmospheric del ¹³C measurements that are used to partition the uptake of fossil carbon emissions among the ocean, atmosphere, and terrestrial biosphere reservoirs.