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Volume 8, issue 6
The Cryosphere, 8, 2395–2407, 2014
https://doi.org/10.5194/tc-8-2395-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
The Cryosphere, 8, 2395–2407, 2014
https://doi.org/10.5194/tc-8-2395-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 20 Dec 2014

Research article | 20 Dec 2014

Sea ice pCO2 dynamics and air–ice CO2 fluxes during the Sea Ice Mass Balance in the Antarctic (SIMBA) experiment – Bellingshausen Sea, Antarctica

N.-X. Geilfus et al.

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Cited articles

Brabant, F.: Physical and biogeochemical controls on the DMS/P/O cycle in Antarctic sea ice, Universite Libre de Bruxelles, Bruxelles, 300 pp., 2012.
Copin Montégut, C.: A new formula for the effect of temperature on the partial pressure of carbon dioxide in seawater, Mar. Chem., 25, 29-37, 1988.
Cox, G. F. N. and Weeks, W. F.: Equations for determining the gas and brine volumes in sea-ice samples, J. Glaciol., 29, 306–316, 1983.
Crabeck, O., Delille, B., Thomas, D., Geilfus, N.-X., Rysgaard, S., and Tison, J.-L.: CO2 and CH4 in sea ice from a subarctic fjord under influence of riverine input, Biogeosciences, 11, 6525–6538, https://doi.org/10.5194/bg-11-6525-2014, 2014.
Delille, B.: Inorganic carbon dynamics and air-ice-sea CO2 fluxes in the open and coastal waters of the Southern Ocean, Université de Liège, Liège, 296 pp., 2006.
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Temporal evolution of pCO2 profiles in sea ice in the Bellingshausen Sea, Antarctica (Oct. 2007), shows that physical and thermodynamic processes control the CO2 system in the ice. We show that each cooling/warming event was associated with an increase/decrease in the brine salinity, TA, TCO2, and in situ brine and bulk ice pCO2. Thicker snow covers reduced the amplitude of these changes. Both brine and bulk ice pCO2 were undersaturated, causing the sea ice to act as a sink for atmospheric CO2.
Temporal evolution of pCO2 profiles in sea ice in the Bellingshausen Sea, Antarctica (Oct....
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