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Biogeosciences An interactive open-access journal of the European Geosciences Union
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Volume 12, issue 6
Biogeosciences, 12, 2047–2061, 2015
https://doi.org/10.5194/bg-12-2047-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Biogeosciences, 12, 2047–2061, 2015
https://doi.org/10.5194/bg-12-2047-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 31 Mar 2015

Research article | 31 Mar 2015

Inorganic carbon dynamics of melt-pond-covered first-year sea ice in the Canadian Arctic

N.-X. Geilfus et al.
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Bates, N. R. and Mathis, J. T.: The Arctic Ocean marine carbon cycle: evaluation of air-sea CO2 exchanges, ocean acidification impacts and potential feedbacks, Biogeosciences, 6, 2433–2459, https://doi.org/10.5194/bg-6-2433-2009, 2009.
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.: Salinity variations in sea ice, J. Glaciol., 13, 109–120, 1974.
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.
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We investigated the evolution of inorganic carbon within landfast sea ice in Resolute Passage during the spring and summer melt period. Low TA and TCO2 concentrations observed in sea ice and brine were associated with the percolation of meltwater from melt ponds. Meltwater was continuously supplied to the ponds which prevented melt ponds from fully equilibrating with the atmospheric CO2 concentration, promoting a continuous uptake of CO2 from the atmosphere.
We investigated the evolution of inorganic carbon within landfast sea ice in Resolute Passage...
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