Sea ice pCO2 dynamics and air–ice CO2 fluxes during the Sea Ice Mass Balance in the Antarctic (SIMBA) experiment – Bellingshausen Sea, Antarctica
Temporal evolution of pCO2 profiles in sea ice in the Bellingshausen Sea, Antarctica, in October 2007 shows physical and thermodynamic processes controls the CO2 system in the ice. During the survey, cyclical warming and cooling strongly influenced the physical, chemical, and thermodynamic propertie...
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Copernicus Publications
2014
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00017944 2023-05-15T13:41:02+02:00 Sea ice pCO2 dynamics and air–ice CO2 fluxes during the Sea Ice Mass Balance in the Antarctic (SIMBA) experiment – Bellingshausen Sea, Antarctica Geilfus, N.-X. Tison, J.-L. Ackley, S. F. Galley, R. J. Rysgaard, S. Miller, L. A. Delille, B. 2014-12 electronic https://doi.org/10.5194/tc-8-2395-2014 https://noa.gwlb.de/receive/cop_mods_00017944 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00017899/tc-8-2395-2014.pdf https://tc.copernicus.org/articles/8/2395/2014/tc-8-2395-2014.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-8-2395-2014 https://noa.gwlb.de/receive/cop_mods_00017944 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00017899/tc-8-2395-2014.pdf https://tc.copernicus.org/articles/8/2395/2014/tc-8-2395-2014.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2014 ftnonlinearchiv https://doi.org/10.5194/tc-8-2395-2014 2022-02-08T22:53:26Z Temporal evolution of pCO2 profiles in sea ice in the Bellingshausen Sea, Antarctica, in October 2007 shows physical and thermodynamic processes controls the CO2 system in the ice. During the survey, cyclical warming and cooling strongly influenced the physical, chemical, and thermodynamic properties of the ice cover. Two sampling sites with contrasting characteristics of ice and snow thickness were sampled: one had little snow accumulation (from 8 to 25 cm) and larger temperature and salinity variations than the second site, where the snow cover was up to 38 cm thick and therefore better insulated the underlying sea ice. We show that each cooling/warming event was associated with an increase/decrease in the brine salinity, total alkalinity (TA), total dissolved inorganic carbon (TCO2), and in situ brine and bulk ice CO2 partial pressures (pCO2). Thicker snow covers reduced the amplitude of these changes: snow cover influences the sea ice carbonate system by modulating the temperature and therefore the salinity of the sea ice cover. Results indicate that pCO2 was undersaturated with respect to the atmosphere both in the in situ bulk ice (from 10 to 193 μatm) and brine (from 65 to 293 μatm), causing the sea ice to act as a sink for atmospheric CO2 (up to 2.9 mmol m−2 d−1), despite supersaturation of the underlying seawater (up to 462 μatm). Article in Journal/Newspaper Antarc* Antarctic Antarctica Bellingshausen Sea Sea ice The Cryosphere Niedersächsisches Online-Archiv NOA Antarctic Bellingshausen Sea The Antarctic The Cryosphere 8 6 2395 2407 |
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Niedersächsisches Online-Archiv NOA |
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English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Geilfus, N.-X. Tison, J.-L. Ackley, S. F. Galley, R. J. Rysgaard, S. Miller, L. A. Delille, B. Sea ice pCO2 dynamics and air–ice CO2 fluxes during the Sea Ice Mass Balance in the Antarctic (SIMBA) experiment – Bellingshausen Sea, Antarctica |
topic_facet |
article Verlagsveröffentlichung |
description |
Temporal evolution of pCO2 profiles in sea ice in the Bellingshausen Sea, Antarctica, in October 2007 shows physical and thermodynamic processes controls the CO2 system in the ice. During the survey, cyclical warming and cooling strongly influenced the physical, chemical, and thermodynamic properties of the ice cover. Two sampling sites with contrasting characteristics of ice and snow thickness were sampled: one had little snow accumulation (from 8 to 25 cm) and larger temperature and salinity variations than the second site, where the snow cover was up to 38 cm thick and therefore better insulated the underlying sea ice. We show that each cooling/warming event was associated with an increase/decrease in the brine salinity, total alkalinity (TA), total dissolved inorganic carbon (TCO2), and in situ brine and bulk ice CO2 partial pressures (pCO2). Thicker snow covers reduced the amplitude of these changes: snow cover influences the sea ice carbonate system by modulating the temperature and therefore the salinity of the sea ice cover. Results indicate that pCO2 was undersaturated with respect to the atmosphere both in the in situ bulk ice (from 10 to 193 μatm) and brine (from 65 to 293 μatm), causing the sea ice to act as a sink for atmospheric CO2 (up to 2.9 mmol m−2 d−1), despite supersaturation of the underlying seawater (up to 462 μatm). |
format |
Article in Journal/Newspaper |
author |
Geilfus, N.-X. Tison, J.-L. Ackley, S. F. Galley, R. J. Rysgaard, S. Miller, L. A. Delille, B. |
author_facet |
Geilfus, N.-X. Tison, J.-L. Ackley, S. F. Galley, R. J. Rysgaard, S. Miller, L. A. Delille, B. |
author_sort |
Geilfus, N.-X. |
title |
Sea ice pCO2 dynamics and air–ice CO2 fluxes during the Sea Ice Mass Balance in the Antarctic (SIMBA) experiment – Bellingshausen Sea, Antarctica |
title_short |
Sea ice pCO2 dynamics and air–ice CO2 fluxes during the Sea Ice Mass Balance in the Antarctic (SIMBA) experiment – Bellingshausen Sea, Antarctica |
title_full |
Sea ice pCO2 dynamics and air–ice CO2 fluxes during the Sea Ice Mass Balance in the Antarctic (SIMBA) experiment – Bellingshausen Sea, Antarctica |
title_fullStr |
Sea ice pCO2 dynamics and air–ice CO2 fluxes during the Sea Ice Mass Balance in the Antarctic (SIMBA) experiment – Bellingshausen Sea, Antarctica |
title_full_unstemmed |
Sea ice pCO2 dynamics and air–ice CO2 fluxes during the Sea Ice Mass Balance in the Antarctic (SIMBA) experiment – Bellingshausen Sea, Antarctica |
title_sort |
sea ice pco2 dynamics and air–ice co2 fluxes during the sea ice mass balance in the antarctic (simba) experiment – bellingshausen sea, antarctica |
publisher |
Copernicus Publications |
publishDate |
2014 |
url |
https://doi.org/10.5194/tc-8-2395-2014 https://noa.gwlb.de/receive/cop_mods_00017944 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00017899/tc-8-2395-2014.pdf https://tc.copernicus.org/articles/8/2395/2014/tc-8-2395-2014.pdf |
geographic |
Antarctic Bellingshausen Sea The Antarctic |
geographic_facet |
Antarctic Bellingshausen Sea The Antarctic |
genre |
Antarc* Antarctic Antarctica Bellingshausen Sea Sea ice The Cryosphere |
genre_facet |
Antarc* Antarctic Antarctica Bellingshausen Sea Sea ice The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-8-2395-2014 https://noa.gwlb.de/receive/cop_mods_00017944 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00017899/tc-8-2395-2014.pdf https://tc.copernicus.org/articles/8/2395/2014/tc-8-2395-2014.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-8-2395-2014 |
container_title |
The Cryosphere |
container_volume |
8 |
container_issue |
6 |
container_start_page |
2395 |
op_container_end_page |
2407 |
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1766144930117320704 |