Contrasting Upper and Deep Ocean Oxygen Response to Protracted Global Warming ...
It is well established that the ocean is currently losing dissolved oxygen (O2) in response to ocean warming, but the long‐term, equilibrium response of O2 to a warmer climate is neither well quantified nor understood. Here we use idealized multimillennial global warming simulations with a comprehen...
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Online Access: | https://dx.doi.org/10.3929/ethz-b-000438611 http://hdl.handle.net/20.500.11850/438611 |
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ftdatacite:10.3929/ethz-b-000438611 2024-04-28T08:37:06+00:00 Contrasting Upper and Deep Ocean Oxygen Response to Protracted Global Warming ... Frölicher, Thomas L. Aschwanden, M.T. Gruber, Nicolas Jaccard, Samuel L. Dunne, John P. Paynter, David 2020 application/pdf https://dx.doi.org/10.3929/ethz-b-000438611 http://hdl.handle.net/20.500.11850/438611 en eng ETH Zurich info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 dissolved oxygen Earth system model long‐term changes global warming article-journal Text ScholarlyArticle Journal Article 2020 ftdatacite https://doi.org/10.3929/ethz-b-000438611 2024-04-02T12:34:54Z It is well established that the ocean is currently losing dissolved oxygen (O2) in response to ocean warming, but the long‐term, equilibrium response of O2 to a warmer climate is neither well quantified nor understood. Here we use idealized multimillennial global warming simulations with a comprehensive Earth system model to show that the equilibrium response in ocean O2 differs fundamentally from the ongoing transient response. After physical equilibration of the model (>4,000 years) under a two times preindustrial CO2 scenario, the deep ocean is better ventilated and oxygenated compared to preindustrial conditions, even though the deep ocean is substantially warmer. The recovery and overshoot of deep convection in the Weddell Sea and especially the Ross Sea after ~720 years causes a strong increase in deep ocean O2 that overcompensates the solubility‐driven decrease in O2. In contrast, O2 in most of the upper tropical ocean is substantially depleted owing to the warming‐induced O2 decrease dominating ... : Global Biogeochemical Cycles, 34 (8) ... Article in Journal/Newspaper Ross Sea Weddell Sea DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
dissolved oxygen Earth system model long‐term changes global warming |
spellingShingle |
dissolved oxygen Earth system model long‐term changes global warming Frölicher, Thomas L. Aschwanden, M.T. Gruber, Nicolas Jaccard, Samuel L. Dunne, John P. Paynter, David Contrasting Upper and Deep Ocean Oxygen Response to Protracted Global Warming ... |
topic_facet |
dissolved oxygen Earth system model long‐term changes global warming |
description |
It is well established that the ocean is currently losing dissolved oxygen (O2) in response to ocean warming, but the long‐term, equilibrium response of O2 to a warmer climate is neither well quantified nor understood. Here we use idealized multimillennial global warming simulations with a comprehensive Earth system model to show that the equilibrium response in ocean O2 differs fundamentally from the ongoing transient response. After physical equilibration of the model (>4,000 years) under a two times preindustrial CO2 scenario, the deep ocean is better ventilated and oxygenated compared to preindustrial conditions, even though the deep ocean is substantially warmer. The recovery and overshoot of deep convection in the Weddell Sea and especially the Ross Sea after ~720 years causes a strong increase in deep ocean O2 that overcompensates the solubility‐driven decrease in O2. In contrast, O2 in most of the upper tropical ocean is substantially depleted owing to the warming‐induced O2 decrease dominating ... : Global Biogeochemical Cycles, 34 (8) ... |
format |
Article in Journal/Newspaper |
author |
Frölicher, Thomas L. Aschwanden, M.T. Gruber, Nicolas Jaccard, Samuel L. Dunne, John P. Paynter, David |
author_facet |
Frölicher, Thomas L. Aschwanden, M.T. Gruber, Nicolas Jaccard, Samuel L. Dunne, John P. Paynter, David |
author_sort |
Frölicher, Thomas L. |
title |
Contrasting Upper and Deep Ocean Oxygen Response to Protracted Global Warming ... |
title_short |
Contrasting Upper and Deep Ocean Oxygen Response to Protracted Global Warming ... |
title_full |
Contrasting Upper and Deep Ocean Oxygen Response to Protracted Global Warming ... |
title_fullStr |
Contrasting Upper and Deep Ocean Oxygen Response to Protracted Global Warming ... |
title_full_unstemmed |
Contrasting Upper and Deep Ocean Oxygen Response to Protracted Global Warming ... |
title_sort |
contrasting upper and deep ocean oxygen response to protracted global warming ... |
publisher |
ETH Zurich |
publishDate |
2020 |
url |
https://dx.doi.org/10.3929/ethz-b-000438611 http://hdl.handle.net/20.500.11850/438611 |
genre |
Ross Sea Weddell Sea |
genre_facet |
Ross Sea Weddell Sea |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.3929/ethz-b-000438611 |
_version_ |
1797568613977161728 |