Articles | Volume 15, issue 9
Biogeosciences, 15, 2851–2872, 2018
https://doi.org/10.5194/bg-15-2851-2018

Special issue: The 10th International Carbon Dioxide Conference (ICDC10)...

Biogeosciences, 15, 2851–2872, 2018
https://doi.org/10.5194/bg-15-2851-2018
Research article
15 May 2018
Research article | 15 May 2018

The seasonal cycle of pCO2 and CO2 fluxes in the Southern Ocean: diagnosing anomalies in CMIP5 Earth system models

N. Precious Mongwe et al.

Related authors

An indicator of sea ice variability for the Antarctic marginal ice zone
Marcello Vichi
The Cryosphere, 16, 4087–4106, https://doi.org/10.5194/tc-16-4087-2022,https://doi.org/10.5194/tc-16-4087-2022, 2022
Short summary
The sensitivity of pCO2 reconstructions to sampling scales across a Southern Ocean sub-domain: a semi-idealized ocean sampling simulation approach
Laique M. Djeutchouang, Nicolette Chang, Luke Gregor, Marcello Vichi, and Pedro M. S. Monteiro
Biogeosciences, 19, 4171–4195, https://doi.org/10.5194/bg-19-4171-2022,https://doi.org/10.5194/bg-19-4171-2022, 2022
Short summary
Physical and mechanical properties of winter first-year ice in the Antarctic marginal ice zone along the Good Hope Line
Sebastian Skatulla, Riesna R. Audh, Andrea Cook, Ehlke Hepworth, Siobhan Johnson, Doru C. Lupascu, Keith MacHutchon, Rutger Marquart, Tommy Mielke, Emmanuel Omatuku, Felix Paul, Tokoloho Rampai, Jörg Schröder, Carina Schwarz, and Marcello Vichi
The Cryosphere, 16, 2899–2925, https://doi.org/10.5194/tc-16-2899-2022,https://doi.org/10.5194/tc-16-2899-2022, 2022
Short summary
Rotational drift in Antarctic sea ice: pronounced cyclonic features and differences between data products
Wayne de Jager and Marcello Vichi
The Cryosphere, 16, 925–940, https://doi.org/10.5194/tc-16-925-2022,https://doi.org/10.5194/tc-16-925-2022, 2022
Short summary
Brief communication: Grease Ice in the Antarctic Marginal Ice Zone
Felix Paul, Tommy Mielke, Carina Nisters, Jörg Schröder, Tokoloho Rampai, Sebastian Skatulla, Riesna Audh, Ehlke Hepworth, Marcello Vichi, and Doru C. Lupascu
The Cryosphere Discuss., https://doi.org/10.5194/tc-2020-362,https://doi.org/10.5194/tc-2020-362, 2021
Preprint withdrawn
Short summary

Related subject area

Biogeochemistry: Air - Sea Exchange
Winter season Southern Ocean distributions of climate-relevant trace gases
Li Zhou, Dennis Booge, Miming Zhang, and Christa A. Marandino
Biogeosciences, 19, 5021–5040, https://doi.org/10.5194/bg-19-5021-2022,https://doi.org/10.5194/bg-19-5021-2022, 2022
Short summary
How biogenic polymers control surfactant dynamics in the surface microlayer: insights from a coastal Baltic Sea study
Theresa Barthelmeß and Anja Engel
Biogeosciences, 19, 4965–4992, https://doi.org/10.5194/bg-19-4965-2022,https://doi.org/10.5194/bg-19-4965-2022, 2022
Short summary
Identifying the biological control of the annual and multi-year variations in South Atlantic air–sea CO2 flux
Daniel J. Ford, Gavin H. Tilstone, Jamie D. Shutler, and Vassilis Kitidis
Biogeosciences, 19, 4287–4304, https://doi.org/10.5194/bg-19-4287-2022,https://doi.org/10.5194/bg-19-4287-2022, 2022
Short summary
The sensitivity of pCO2 reconstructions to sampling scales across a Southern Ocean sub-domain: a semi-idealized ocean sampling simulation approach
Laique M. Djeutchouang, Nicolette Chang, Luke Gregor, Marcello Vichi, and Pedro M. S. Monteiro
Biogeosciences, 19, 4171–4195, https://doi.org/10.5194/bg-19-4171-2022,https://doi.org/10.5194/bg-19-4171-2022, 2022
Short summary
Physical mechanisms for biological carbon uptake during the onset of the spring phytoplankton bloom in the northwestern Mediterranean Sea (BOUSSOLE site)
Liliane Merlivat, Michael Hemming, Jacqueline Boutin, David Antoine, Vincenzo Vellucci, Melek Golbol, Gareth A. Lee, and Laurence Beaumont
Biogeosciences, 19, 3911–3920, https://doi.org/10.5194/bg-19-3911-2022,https://doi.org/10.5194/bg-19-3911-2022, 2022
Short summary

Cited articles

Adachi, Y., Yukimoto, S., Deushi, M., Obata, A., Nakano, H., Tanaka, T. Y., Hosaka, M., Sakami, T., Yoshimura, H., Hirabara, M., Shindo, E., Tsujino, H., Mizuta, R., Yabu, S., Koshiro, T., Ose, T., and Kitoh, A.: Basic performance of a new earth system model of the Meteorological Research Institute, Pap. Meteorol. Geophys., 64, 1–19, https://doi.org/10.2467/mripapers.64.1, 2013. 
Anav, A., Friedlingstein, P., Kidston, M., Bopp, L., Ciais, P., Cox, P., Jones, C., Jung, M., Myneni, R., and Zhu, Z.: Evaluating the land and ocean components of the global carbon cycle in the CMIP5 earth system models, J. Climate, 26, 6801–6843, https://doi.org/10.1175/JCLI-D-12-00417.1, 2013. 
Barbero, L., Boutin, J., Merlivat, L., Martin, N., Takahashi, T., Sutherland, S. C., and Wanninkhof, R.: Importance of water mass formation regions for the air-sea CO2 flux estimate in the southern ocean, Glob. Biogeochem. Cy., 25, 1–16, https://doi.org/10.1029/2010GB003818, 2011. 
Boyd, P. W. and Ellwood, M. J.: The biogeochemical cycle of iron in the ocean, Nat. Geosci., 3, 675–682, https://doi.org/10.1038/ngeo964, 2010. 
Download
Short summary
Here we analyze seasonal cycle of CO2 biases in 10 CMIP5 models in the SO. We find two main model biases; exaggeration of primary production such that biologically driven DIC changes mainly regulates FCO2 variability, and an overestimation of the role of solubility, such that changes in temperature dominantly drive FCO2 seasonal changes to an extent of opposing biological CO2 uptake in spring. CMIP5 models show greater zonal homogeneity in the seasonal cycle of FCO2 than observational products.
Altmetrics
Final-revised paper
Preprint