Sea ice contribution to the airsea CO2 exchange in the Arctic and Southern Oceans
Although salt rejection from sea ice is a key process in deep-water formation in ice-covered seas, the concurrent rejection of CO2 and the subsequent effect on air–sea CO2 exchange have received little attention. We review the mechanisms by which sea ice directly and indirectly controls the air–sea...
Published in: | Tellus B: Chemical and Physical Meteorology |
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T H E I N T E R N AT I O N A L M E T E O ROLO G I C A L I N S T I T U T E I N S TOCKHOLM
2011
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Online Access: | https://epic.awi.de/id/eprint/24564/ https://epic.awi.de/id/eprint/24564/1/Rysgaard_et_al_Tellus_B_2011-3.pdf https://hdl.handle.net/10013/epic.38368 https://hdl.handle.net/10013/epic.38368.d001 |
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ftawi:oai:epic.awi.de:24564 2024-09-15T17:51:49+00:00 Sea ice contribution to the airsea CO2 exchange in the Arctic and Southern Oceans Rysgaard, S. Bendtsen, J. Delille, B. Dieckmann, Gerhard Glud, R. Kennedy, H. Mortensen, J. Papdimitriou, S. Thomas, D. N. Tison, J.-L. 2011 application/pdf https://epic.awi.de/id/eprint/24564/ https://epic.awi.de/id/eprint/24564/1/Rysgaard_et_al_Tellus_B_2011-3.pdf https://hdl.handle.net/10013/epic.38368 https://hdl.handle.net/10013/epic.38368.d001 unknown T H E I N T E R N AT I O N A L M E T E O ROLO G I C A L I N S T I T U T E I N S TOCKHOLM https://epic.awi.de/id/eprint/24564/1/Rysgaard_et_al_Tellus_B_2011-3.pdf https://hdl.handle.net/10013/epic.38368.d001 Rysgaard, S. , Bendtsen, J. , Delille, B. , Dieckmann, G. , Glud, R. , Kennedy, H. , Mortensen, J. , Papdimitriou, S. , Thomas, D. N. and Tison, J. L. (2011) Sea ice contribution to the airsea CO2 exchange in the Arctic and Southern Oceans , Tellus B, 63b , pp. 823-830 . doi:10.1111/j.1600-0889.2011.00571.x <https://doi.org/10.1111/j.1600-0889.2011.00571.x> , hdl:10013/epic.38368 EPIC3Tellus B, T H E I N T E R N AT I O N A L M E T E O ROLO G I C A L I N S T I T U T E I N S TOCKHOLM, 63b, pp. 823-830, ISSN: 0280-6509 Article isiRev 2011 ftawi https://doi.org/10.1111/j.1600-0889.2011.00571.x 2024-06-24T04:02:42Z Although salt rejection from sea ice is a key process in deep-water formation in ice-covered seas, the concurrent rejection of CO2 and the subsequent effect on air–sea CO2 exchange have received little attention. We review the mechanisms by which sea ice directly and indirectly controls the air–sea CO2 exchange and use recent measurements of inorganic carbon compounds in bulk sea ice to estimate that oceanic CO2 uptake during the seasonal cycle of sea-ice growth and decay in ice-covered oceanic regions equals almost half of the net atmospheric CO2 uptake in ice-free polar seas. This sea-ice driven CO2 uptake has not been considered so far in estimates of global oceanic CO2 uptake. Net CO2 uptake in sea-ice–covered oceans can be driven by; (1) rejection during sea–ice formation and sinking of CO2-rich brine into intermediate and abyssal oceanic water masses, (2) blocking of air–sea CO2 exchange during winter, and (3) release of CO2-depleted melt water with excess total alkalinity during sea-ice decay and (4) biological CO2 drawdown during primary production in sea ice and surface oceanic waters. Article in Journal/Newspaper Arctic Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Tellus B: Chemical and Physical Meteorology 63 5 823 830 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Although salt rejection from sea ice is a key process in deep-water formation in ice-covered seas, the concurrent rejection of CO2 and the subsequent effect on air–sea CO2 exchange have received little attention. We review the mechanisms by which sea ice directly and indirectly controls the air–sea CO2 exchange and use recent measurements of inorganic carbon compounds in bulk sea ice to estimate that oceanic CO2 uptake during the seasonal cycle of sea-ice growth and decay in ice-covered oceanic regions equals almost half of the net atmospheric CO2 uptake in ice-free polar seas. This sea-ice driven CO2 uptake has not been considered so far in estimates of global oceanic CO2 uptake. Net CO2 uptake in sea-ice–covered oceans can be driven by; (1) rejection during sea–ice formation and sinking of CO2-rich brine into intermediate and abyssal oceanic water masses, (2) blocking of air–sea CO2 exchange during winter, and (3) release of CO2-depleted melt water with excess total alkalinity during sea-ice decay and (4) biological CO2 drawdown during primary production in sea ice and surface oceanic waters. |
format |
Article in Journal/Newspaper |
author |
Rysgaard, S. Bendtsen, J. Delille, B. Dieckmann, Gerhard Glud, R. Kennedy, H. Mortensen, J. Papdimitriou, S. Thomas, D. N. Tison, J.-L. |
spellingShingle |
Rysgaard, S. Bendtsen, J. Delille, B. Dieckmann, Gerhard Glud, R. Kennedy, H. Mortensen, J. Papdimitriou, S. Thomas, D. N. Tison, J.-L. Sea ice contribution to the airsea CO2 exchange in the Arctic and Southern Oceans |
author_facet |
Rysgaard, S. Bendtsen, J. Delille, B. Dieckmann, Gerhard Glud, R. Kennedy, H. Mortensen, J. Papdimitriou, S. Thomas, D. N. Tison, J.-L. |
author_sort |
Rysgaard, S. |
title |
Sea ice contribution to the airsea CO2 exchange in the Arctic and Southern Oceans |
title_short |
Sea ice contribution to the airsea CO2 exchange in the Arctic and Southern Oceans |
title_full |
Sea ice contribution to the airsea CO2 exchange in the Arctic and Southern Oceans |
title_fullStr |
Sea ice contribution to the airsea CO2 exchange in the Arctic and Southern Oceans |
title_full_unstemmed |
Sea ice contribution to the airsea CO2 exchange in the Arctic and Southern Oceans |
title_sort |
sea ice contribution to the airsea co2 exchange in the arctic and southern oceans |
publisher |
T H E I N T E R N AT I O N A L M E T E O ROLO G I C A L I N S T I T U T E I N S TOCKHOLM |
publishDate |
2011 |
url |
https://epic.awi.de/id/eprint/24564/ https://epic.awi.de/id/eprint/24564/1/Rysgaard_et_al_Tellus_B_2011-3.pdf https://hdl.handle.net/10013/epic.38368 https://hdl.handle.net/10013/epic.38368.d001 |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
EPIC3Tellus B, T H E I N T E R N AT I O N A L M E T E O ROLO G I C A L I N S T I T U T E I N S TOCKHOLM, 63b, pp. 823-830, ISSN: 0280-6509 |
op_relation |
https://epic.awi.de/id/eprint/24564/1/Rysgaard_et_al_Tellus_B_2011-3.pdf https://hdl.handle.net/10013/epic.38368.d001 Rysgaard, S. , Bendtsen, J. , Delille, B. , Dieckmann, G. , Glud, R. , Kennedy, H. , Mortensen, J. , Papdimitriou, S. , Thomas, D. N. and Tison, J. L. (2011) Sea ice contribution to the airsea CO2 exchange in the Arctic and Southern Oceans , Tellus B, 63b , pp. 823-830 . doi:10.1111/j.1600-0889.2011.00571.x <https://doi.org/10.1111/j.1600-0889.2011.00571.x> , hdl:10013/epic.38368 |
op_doi |
https://doi.org/10.1111/j.1600-0889.2011.00571.x |
container_title |
Tellus B: Chemical and Physical Meteorology |
container_volume |
63 |
container_issue |
5 |
container_start_page |
823 |
op_container_end_page |
830 |
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1810293824981827584 |