Raupach et al. (2008)
Also: Raupach et al. 2008
Anthropogenic and biophysical contributions to increasing atmospheric CO 2 growth rate and airborne fraction
Raupach, M. R., Canadell, J. G., & Quéré, C. L. (2008). Anthropogenic and biophysical contributions to increasing atmospheric CO 2 growth rate and airborne fraction. Biogeosciences, 5(6), 1601-1613. Link to PDF (conservation of mass analysis shown in figure 1d)
doi:10.5194/bg-5-1601-2008
References
All IPCC definitions taken from Climate Change 2007: The Physical Science Basis. Working Group I Contribution to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Annex I, Glossary, pp. 941-954. Cambridge University Press.