Ocean heat storage in response to changing ocean circulation processes
Ocean heat storage due to local addition of heat (added) and due to changes in heat transport (redistributed) were quantified in ocean-only 2xCO2 simulations. While added heat storage dominates globally, redistribution makes important regional contributions, especially in the tropics. Heat redistrib...
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ftunivtasecite:oai:ecite.utas.edu.au:143657 2023-05-15T13:42:40+02:00 Ocean heat storage in response to changing ocean circulation processes Boeira Dias, FB Fiedler, R Marsland, SJ Domingues, CM Clement, L Rintoul, SR Mcdonagh, EL Mata, MM Savita, A 2020 application/pdf https://doi.org/10.1175/JCLI-D-19-1016.1 http://ecite.utas.edu.au/143657 en eng Amer Meteorological Soc http://ecite.utas.edu.au/143657/1/143657 - Ocean heat storage in response to changing ocean circulation processes.pdf http://dx.doi.org/10.1175/JCLI-D-19-1016.1 Boeira Dias, FB and Fiedler, R and Marsland, SJ and Domingues, CM and Clement, L and Rintoul, SR and Mcdonagh, EL and Mata, MM and Savita, A, Ocean heat storage in response to changing ocean circulation processes, Journal of Climate, 33, (21) pp. 9065-9082. ISSN 0894-8755 (2020) [Refereed Article] http://ecite.utas.edu.au/143657 Earth Sciences Oceanography Physical oceanography Refereed Article PeerReviewed 2020 ftunivtasecite https://doi.org/10.1175/JCLI-D-19-1016.1 2022-08-30T09:11:43Z Ocean heat storage due to local addition of heat (added) and due to changes in heat transport (redistributed) were quantified in ocean-only 2xCO2 simulations. While added heat storage dominates globally, redistribution makes important regional contributions, especially in the tropics. Heat redistribution is dominated by circulation changes, summarized by the super-residual transport, with only minor effects from changes in vertical mixing. While previous studies emphasized the contribution of redistribution feedback at high latitudes, this study shows that redistribution of heat also accounts for 65% of heat storage at low latitudes and 25% in the midlatitude (3550S) Southern Ocean. Tropical warming results from the interplay between increased stratification and equatorward heat transport by the subtropical gyres, which redistributes heat from the subtropics to lower latitudes. The Atlantic pattern is remarkably distinct from other basins, resulting in larger basin-average heat storage. Added heat storage is evenly distributed throughout midlatitude Southern Ocean and dominates the total storage. However, redistribution stores heat north of the Antarctic Circumpolar Current in the Atlantic and Indian sectors, having an important contribution to the peak of heat storage at 45S. Southern Ocean redistribution results from intensified heat convergence in the subtropical front and reduced stratification in response to surface heat, freshwater, and momentum flux perturbations. These results highlight that the distribution of ocean heat storage reflects both passive uptake of heat and active redistribution of heat by changes in ocean circulation processes. The redistributed heat transport must therefore be better understood for accurate projection of changes in ocean heat uptake efficiency, ocean heat storage, and thermosteric sea level. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean eCite UTAS (University of Tasmania) Antarctic Southern Ocean The Antarctic Indian Journal of Climate 33 21 9065 9082 |
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Open Polar |
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eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Oceanography Physical oceanography |
spellingShingle |
Earth Sciences Oceanography Physical oceanography Boeira Dias, FB Fiedler, R Marsland, SJ Domingues, CM Clement, L Rintoul, SR Mcdonagh, EL Mata, MM Savita, A Ocean heat storage in response to changing ocean circulation processes |
topic_facet |
Earth Sciences Oceanography Physical oceanography |
description |
Ocean heat storage due to local addition of heat (added) and due to changes in heat transport (redistributed) were quantified in ocean-only 2xCO2 simulations. While added heat storage dominates globally, redistribution makes important regional contributions, especially in the tropics. Heat redistribution is dominated by circulation changes, summarized by the super-residual transport, with only minor effects from changes in vertical mixing. While previous studies emphasized the contribution of redistribution feedback at high latitudes, this study shows that redistribution of heat also accounts for 65% of heat storage at low latitudes and 25% in the midlatitude (3550S) Southern Ocean. Tropical warming results from the interplay between increased stratification and equatorward heat transport by the subtropical gyres, which redistributes heat from the subtropics to lower latitudes. The Atlantic pattern is remarkably distinct from other basins, resulting in larger basin-average heat storage. Added heat storage is evenly distributed throughout midlatitude Southern Ocean and dominates the total storage. However, redistribution stores heat north of the Antarctic Circumpolar Current in the Atlantic and Indian sectors, having an important contribution to the peak of heat storage at 45S. Southern Ocean redistribution results from intensified heat convergence in the subtropical front and reduced stratification in response to surface heat, freshwater, and momentum flux perturbations. These results highlight that the distribution of ocean heat storage reflects both passive uptake of heat and active redistribution of heat by changes in ocean circulation processes. The redistributed heat transport must therefore be better understood for accurate projection of changes in ocean heat uptake efficiency, ocean heat storage, and thermosteric sea level. |
format |
Article in Journal/Newspaper |
author |
Boeira Dias, FB Fiedler, R Marsland, SJ Domingues, CM Clement, L Rintoul, SR Mcdonagh, EL Mata, MM Savita, A |
author_facet |
Boeira Dias, FB Fiedler, R Marsland, SJ Domingues, CM Clement, L Rintoul, SR Mcdonagh, EL Mata, MM Savita, A |
author_sort |
Boeira Dias, FB |
title |
Ocean heat storage in response to changing ocean circulation processes |
title_short |
Ocean heat storage in response to changing ocean circulation processes |
title_full |
Ocean heat storage in response to changing ocean circulation processes |
title_fullStr |
Ocean heat storage in response to changing ocean circulation processes |
title_full_unstemmed |
Ocean heat storage in response to changing ocean circulation processes |
title_sort |
ocean heat storage in response to changing ocean circulation processes |
publisher |
Amer Meteorological Soc |
publishDate |
2020 |
url |
https://doi.org/10.1175/JCLI-D-19-1016.1 http://ecite.utas.edu.au/143657 |
geographic |
Antarctic Southern Ocean The Antarctic Indian |
geographic_facet |
Antarctic Southern Ocean The Antarctic Indian |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
http://ecite.utas.edu.au/143657/1/143657 - Ocean heat storage in response to changing ocean circulation processes.pdf http://dx.doi.org/10.1175/JCLI-D-19-1016.1 Boeira Dias, FB and Fiedler, R and Marsland, SJ and Domingues, CM and Clement, L and Rintoul, SR and Mcdonagh, EL and Mata, MM and Savita, A, Ocean heat storage in response to changing ocean circulation processes, Journal of Climate, 33, (21) pp. 9065-9082. ISSN 0894-8755 (2020) [Refereed Article] http://ecite.utas.edu.au/143657 |
op_doi |
https://doi.org/10.1175/JCLI-D-19-1016.1 |
container_title |
Journal of Climate |
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33 |
container_issue |
21 |
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9065 |
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9082 |
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1766171218893864960 |