Articles | Volume 8, issue 6
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, J.-L. Tison, S. F. Ackley, R. J. Galley, S. Rysgaard, L. A. Miller, and B. Delille


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
AR by Nicolas-Xavier Geilfus on behalf of the Authors (26 Sep 2014)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (26 Sep 2014) by Martin Schneebeli
RR by Sönke Maus (20 Oct 2014)
ED: Publish subject to minor revisions (Editor review) (26 Oct 2014) by Martin Schneebeli
AR by Anna Wenzel on behalf of the Authors (06 Nov 2014)  Author's response    Manuscript
ED: Publish as is (24 Nov 2014) by Martin Schneebeli
Short summary
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.