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Volume 13, issue 3
Biogeosciences, 13, 873–885, 2016
https://doi.org/10.5194/bg-13-873-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Biogeosciences, 13, 873–885, 2016
https://doi.org/10.5194/bg-13-873-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 17 Feb 2016

Research article | 17 Feb 2016

The 2009–2010 step in atmospheric CO2 interhemispheric difference

R. J. Francey and J. S. Frederiksen

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Cited articles

Allison, C. E. and Francey, R. J.: Verifying southern hemisphere trends in atmospheric carbon dioxide stable isotopes, J. Geophys. Res., 112, D21304, https://doi.org/10.1029/2006JD007345, 2007.
Ashfold, M. J., Pyle, J. A., Robinson, A. D., Meneguz, E., Nadzir, M. S. M., Phang, S. M., Samah, A. A., Ong, S., Ung, H. E., Peng, L. K., Yong, S. E., and Harris, N. R. P.: Rapid transport of East Asian pollution to the deep tropics, Atmos. Chem. Phys., 15, 3565–3573, https://doi.org/10.5194/acp-15-3565-2015, 2015.
Boden, T. A., Marland, G., and Andres, R. J.: Global, regional, and national fossil-fuel CO2 emissions, Carbon Dioxide Information Analysis Center, 2013.
Denning, A. S., Takahashi, T., and Friedlingstein, P: Can a strong atmospheric CO2 rectifier effect be reconciled with a “reasonable” carbon budget? Tellus, 51B, 249–253, 1999.
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A step in the annual average CO2 difference between Mauna Loa and the Southern Hemisphere of 0.8 ppm in 2009–2010 has no precedence in 50 years. Variations in interhemispheric exchange coincide with the step, the subsequent 5-year north-south CO2 stability, and historic differences. This behaviour provides a critical test for studies that employ atmospheric transport models to interpret global carbon budgets and inform management of anthropogenic emissions.
A step in the annual average CO2 difference between Mauna Loa and the Southern Hemisphere of 0.8...
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