Articles | Volume 18, issue 7
Atmos. Chem. Phys., 18, 4765–4801, 2018
https://doi.org/10.5194/acp-18-4765-2018
Atmos. Chem. Phys., 18, 4765–4801, 2018
https://doi.org/10.5194/acp-18-4765-2018

Research article 09 Apr 2018

Research article | 09 Apr 2018

Estimates of CO2 fluxes over the city of Cape Town, South Africa, through Bayesian inverse modelling

Alecia Nickless et al.

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Manuscript not accepted for further review
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Cited articles

Andres, R. J., Boden, T. A., Bréon, F.-M., Ciais, P., Davis, S., Erickson, D., Gregg, J. S., Jacobson, A., Marland, G., Miller, J., Oda, T., Olivier, J. G. J., Raupach, M. R., Rayner, P., and Treanton, K.: A synthesis of carbon dioxide emissions from fossil-fuel combustion, Biogeosciences, 9, 1845–1871, https://doi.org/10.5194/bg-9-1845-2012, 2012.
Andres, R. J., Boden, T. A., and Higdon, D.: A new evaluation of the uncertainty associated with CDIAC estimates of fossil fuel carbon dioxide emission, Tellus B, 66, 23616, https://doi.org/10.3402/tellusb.v66.23616, 2014.
Baker, D. F., Law, R. M., Gurney, K. R., Rayner, P., Peylin, P., Denning, A. S., Bourquet, P., Bruhwiler, L., Chen, Y., Ciais, P., Fung, I. Y., Heimann, M., John, J., Maki, T., Maksyutov, S., Masarie, K., Prather, M., Pak, B., Taguchi, S., Zhu, Z.: TransCom 3 inversion intercomparison: impact of transport model errors on the interannual variability of regional CO2 fluxes, 1988–2003, Global Biogeochem. Cy., 20, GB1002, https://doi.org/10.1029/2004GB002439, 2006.
Bellassen, V. and Stephan, N.: Accounting for carbon: Monitoring, reporting and verifying emissions in the climate economy, Cambridge University Press, Cambridge, UK, 2015.
Boden, T. A., Marland, G., and Andres, R. J.: Global, regional, and national fossil fuel CO2 emissions, Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, US Department of Energy, Oak Ridge, TN, USA., https://doi.org/10.3334/CDIAC/00001_V2011, 2011.
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Short summary
Carbon dioxide emissions and uptake were estimated for Cape Town, South Africa. We placed two high-precision analysers in lighthouses located on either end of Cape Town (Robben Island and Hangklip). The Cape Point GAW station provided background measurements. We were able to improve the agreement between modelled and observed concentrations, relative to initial estimates provided. This methodology could potentially be scaled up to provide monitoring and verification of city emissions.
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