The Arctic Ocean marine carbon cycle: evaluation of air-sea CO2 exchanges, ocean acidification impacts and potential feedbacks
At present, although seasonal sea-ice cover mitigates atmosphere-ocean gas exchange, the Arctic Ocean takes up carbon dioxide (CO2) on the order of −66 to −199 Tg C year−1 (1012 g C), contributing 5–14% to the global balance of CO2 sinks and sources. Because of this, the Arctic Ocean has an importan...
Published in: | Biogeosciences |
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Copernicus Publications
2009
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00029603 2023-05-15T14:33:30+02:00 The Arctic Ocean marine carbon cycle: evaluation of air-sea CO2 exchanges, ocean acidification impacts and potential feedbacks Bates, N. R. Mathis, J. T. 2009-11 electronic https://doi.org/10.5194/bg-6-2433-2009 https://noa.gwlb.de/receive/cop_mods_00029603 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029558/bg-6-2433-2009.pdf https://bg.copernicus.org/articles/6/2433/2009/bg-6-2433-2009.pdf eng eng Copernicus Publications Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-6-2433-2009 https://noa.gwlb.de/receive/cop_mods_00029603 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029558/bg-6-2433-2009.pdf https://bg.copernicus.org/articles/6/2433/2009/bg-6-2433-2009.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2009 ftnonlinearchiv https://doi.org/10.5194/bg-6-2433-2009 2022-02-08T22:47:36Z At present, although seasonal sea-ice cover mitigates atmosphere-ocean gas exchange, the Arctic Ocean takes up carbon dioxide (CO2) on the order of −66 to −199 Tg C year−1 (1012 g C), contributing 5–14% to the global balance of CO2 sinks and sources. Because of this, the Arctic Ocean has an important influence on the global carbon cycle, with the marine carbon cycle and atmosphere-ocean CO2 exchanges sensitive to Arctic Ocean and global climate change feedbacks. In the near-term, further sea-ice loss and increases in phytoplankton growth rates are expected to increase the uptake of CO2 by Arctic Ocean surface waters, although mitigated somewhat by surface warming in the Arctic. Thus, the capacity of the Arctic Ocean to uptake CO2 is expected to alter in response to environmental changes driven largely by climate. These changes are likely to continue to modify the physics, biogeochemistry, and ecology of the Arctic Ocean in ways that are not yet fully understood. In surface waters, sea-ice melt, river runoff, cooling and uptake of CO2 through air-sea gas exchange combine to decrease the calcium carbonate (CaCO3) mineral saturation states (Ω) of seawater while seasonal phytoplankton primary production (PP) mitigates this effect. Biological amplification of ocean acidification effects in subsurface waters, due to the remineralization of organic matter, is likely to reduce the ability of many species to produce CaCO3 shells or tests with profound implications for Arctic marine ecosystems Article in Journal/Newspaper Arctic Arctic Ocean Climate change Ocean acidification Phytoplankton Sea ice Niedersächsisches Online-Archiv NOA Arctic Arctic Ocean Biogeosciences 6 11 2433 2459 |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Bates, N. R. Mathis, J. T. The Arctic Ocean marine carbon cycle: evaluation of air-sea CO2 exchanges, ocean acidification impacts and potential feedbacks |
topic_facet |
article Verlagsveröffentlichung |
description |
At present, although seasonal sea-ice cover mitigates atmosphere-ocean gas exchange, the Arctic Ocean takes up carbon dioxide (CO2) on the order of −66 to −199 Tg C year−1 (1012 g C), contributing 5–14% to the global balance of CO2 sinks and sources. Because of this, the Arctic Ocean has an important influence on the global carbon cycle, with the marine carbon cycle and atmosphere-ocean CO2 exchanges sensitive to Arctic Ocean and global climate change feedbacks. In the near-term, further sea-ice loss and increases in phytoplankton growth rates are expected to increase the uptake of CO2 by Arctic Ocean surface waters, although mitigated somewhat by surface warming in the Arctic. Thus, the capacity of the Arctic Ocean to uptake CO2 is expected to alter in response to environmental changes driven largely by climate. These changes are likely to continue to modify the physics, biogeochemistry, and ecology of the Arctic Ocean in ways that are not yet fully understood. In surface waters, sea-ice melt, river runoff, cooling and uptake of CO2 through air-sea gas exchange combine to decrease the calcium carbonate (CaCO3) mineral saturation states (Ω) of seawater while seasonal phytoplankton primary production (PP) mitigates this effect. Biological amplification of ocean acidification effects in subsurface waters, due to the remineralization of organic matter, is likely to reduce the ability of many species to produce CaCO3 shells or tests with profound implications for Arctic marine ecosystems |
format |
Article in Journal/Newspaper |
author |
Bates, N. R. Mathis, J. T. |
author_facet |
Bates, N. R. Mathis, J. T. |
author_sort |
Bates, N. R. |
title |
The Arctic Ocean marine carbon cycle: evaluation of air-sea CO2 exchanges, ocean acidification impacts and potential feedbacks |
title_short |
The Arctic Ocean marine carbon cycle: evaluation of air-sea CO2 exchanges, ocean acidification impacts and potential feedbacks |
title_full |
The Arctic Ocean marine carbon cycle: evaluation of air-sea CO2 exchanges, ocean acidification impacts and potential feedbacks |
title_fullStr |
The Arctic Ocean marine carbon cycle: evaluation of air-sea CO2 exchanges, ocean acidification impacts and potential feedbacks |
title_full_unstemmed |
The Arctic Ocean marine carbon cycle: evaluation of air-sea CO2 exchanges, ocean acidification impacts and potential feedbacks |
title_sort |
arctic ocean marine carbon cycle: evaluation of air-sea co2 exchanges, ocean acidification impacts and potential feedbacks |
publisher |
Copernicus Publications |
publishDate |
2009 |
url |
https://doi.org/10.5194/bg-6-2433-2009 https://noa.gwlb.de/receive/cop_mods_00029603 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029558/bg-6-2433-2009.pdf https://bg.copernicus.org/articles/6/2433/2009/bg-6-2433-2009.pdf |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Climate change Ocean acidification Phytoplankton Sea ice |
genre_facet |
Arctic Arctic Ocean Climate change Ocean acidification Phytoplankton Sea ice |
op_relation |
Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-6-2433-2009 https://noa.gwlb.de/receive/cop_mods_00029603 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029558/bg-6-2433-2009.pdf https://bg.copernicus.org/articles/6/2433/2009/bg-6-2433-2009.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/bg-6-2433-2009 |
container_title |
Biogeosciences |
container_volume |
6 |
container_issue |
11 |
container_start_page |
2433 |
op_container_end_page |
2459 |
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1766306730827841536 |