Sea ice contribution to the air-sea 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...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/129588 2023-05-15T15:08:42+02:00 Sea ice contribution to the air-sea CO2 exchange in the Arctic and Southern oceans Rysgaard, Søren Bendtsen, Jørgen Delille, Bruno Dieckmann, Gerhard S. Glud, Ronnie N. Kennedy, Hilary Mortensen, John Papadimitriou, Stathys Thomas, D. R. Tison, Jean-Louis 2011-11 No full-text files http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/129588 en eng uri/info:doi/10.1111/j.1600-0889.2011.00571.x uri/info:scp/80054851077 http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/129588 Tellus. Series B, Chemical and physical meteorology, 63 (5 Glaciologie Climatologie Géographie physique Océanographie physique et chimique info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2011 ftunivbruxelles 2022-06-12T21:18:20Z 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. © 2011 The Authors Tellus B © 2011 John Wiley & Sons A/S. SCOPUS: re.j info:eu-repo/semantics/published Article in Journal/Newspaper Arctic Sea ice DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Arctic |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Glaciologie Climatologie Géographie physique Océanographie physique et chimique |
spellingShingle |
Glaciologie Climatologie Géographie physique Océanographie physique et chimique Rysgaard, Søren Bendtsen, Jørgen Delille, Bruno Dieckmann, Gerhard S. Glud, Ronnie N. Kennedy, Hilary Mortensen, John Papadimitriou, Stathys Thomas, D. R. Tison, Jean-Louis Sea ice contribution to the air-sea CO2 exchange in the Arctic and Southern oceans |
topic_facet |
Glaciologie Climatologie Géographie physique Océanographie physique et chimique |
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. © 2011 The Authors Tellus B © 2011 John Wiley & Sons A/S. SCOPUS: re.j info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Rysgaard, Søren Bendtsen, Jørgen Delille, Bruno Dieckmann, Gerhard S. Glud, Ronnie N. Kennedy, Hilary Mortensen, John Papadimitriou, Stathys Thomas, D. R. Tison, Jean-Louis |
author_facet |
Rysgaard, Søren Bendtsen, Jørgen Delille, Bruno Dieckmann, Gerhard S. Glud, Ronnie N. Kennedy, Hilary Mortensen, John Papadimitriou, Stathys Thomas, D. R. Tison, Jean-Louis |
author_sort |
Rysgaard, Søren |
title |
Sea ice contribution to the air-sea CO2 exchange in the Arctic and Southern oceans |
title_short |
Sea ice contribution to the air-sea CO2 exchange in the Arctic and Southern oceans |
title_full |
Sea ice contribution to the air-sea CO2 exchange in the Arctic and Southern oceans |
title_fullStr |
Sea ice contribution to the air-sea CO2 exchange in the Arctic and Southern oceans |
title_full_unstemmed |
Sea ice contribution to the air-sea CO2 exchange in the Arctic and Southern oceans |
title_sort |
sea ice contribution to the air-sea co2 exchange in the arctic and southern oceans |
publishDate |
2011 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/129588 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
Tellus. Series B, Chemical and physical meteorology, 63 (5 |
op_relation |
uri/info:doi/10.1111/j.1600-0889.2011.00571.x uri/info:scp/80054851077 http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/129588 |
_version_ |
1766340007356792832 |