Articles | Volume 13, issue 3
Biogeosciences, 13, 873–885, 2016
Biogeosciences, 13, 873–885, 2016

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


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (01 Dec 2015) by Sönke Zaehle
AR by Roger Francey on behalf of the Authors (11 Jan 2016)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (12 Jan 2016) by Sönke Zaehle
RR by Anonymous Referee #2 (22 Jan 2016)
RR by Anonymous Referee #1 (26 Jan 2016)
ED: Publish as is (26 Jan 2016) by Sönke Zaehle
Short summary
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.
Final-revised paper