Disparate acidification and calcium carbonate desaturation of deep and shallow waters of the Arctic Ocean
The Arctic Ocean is acidifying from absorption of man-made CO2. Current predictive models of that acidification focus on surface waters, and their results argue that deep waters will acidify by downward penetration from the surface. Here we show, with an alternative model, the rapid, near simultaneo...
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ftpubmed:oai:pubmedcentral.nih.gov:5036158 2023-05-15T14:49:35+02:00 Disparate acidification and calcium carbonate desaturation of deep and shallow waters of the Arctic Ocean Luo, Yiming Boudreau, Bernard P. Mucci, Alfonso 2016-09-23 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5036158/ http://www.ncbi.nlm.nih.gov/pubmed/27659188 https://doi.org/10.1038/ncomms12821 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5036158/ http://www.ncbi.nlm.nih.gov/pubmed/27659188 http://dx.doi.org/10.1038/ncomms12821 Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ CC-BY Article Text 2016 ftpubmed https://doi.org/10.1038/ncomms12821 2016-10-09T00:07:33Z The Arctic Ocean is acidifying from absorption of man-made CO2. Current predictive models of that acidification focus on surface waters, and their results argue that deep waters will acidify by downward penetration from the surface. Here we show, with an alternative model, the rapid, near simultaneous, acidification of both surface and deep waters, a prediction supported by current, but limited, saturation data. Whereas Arctic surface water responds directly by atmospheric CO2 uptake, deeper waters will be influenced strongly by intrusion of mid-depth, pre-acidified, Atlantic Ocean water. With unabated CO2 emissions, surface waters will become undersaturated with respect to aragonite by 2105 AD and could remain so for ∼600 years. In deep waters, the aragonite saturation horizon will rise, reaching the base of the surface mixed layer by 2140 AD and likely remaining there for over a millennium. The survival of aragonite-secreting organisms is consequently threatened on long timescales. Text Arctic Arctic Ocean PubMed Central (PMC) Arctic Arctic Ocean Nature Communications 7 1 |
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Article Luo, Yiming Boudreau, Bernard P. Mucci, Alfonso Disparate acidification and calcium carbonate desaturation of deep and shallow waters of the Arctic Ocean |
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Article |
description |
The Arctic Ocean is acidifying from absorption of man-made CO2. Current predictive models of that acidification focus on surface waters, and their results argue that deep waters will acidify by downward penetration from the surface. Here we show, with an alternative model, the rapid, near simultaneous, acidification of both surface and deep waters, a prediction supported by current, but limited, saturation data. Whereas Arctic surface water responds directly by atmospheric CO2 uptake, deeper waters will be influenced strongly by intrusion of mid-depth, pre-acidified, Atlantic Ocean water. With unabated CO2 emissions, surface waters will become undersaturated with respect to aragonite by 2105 AD and could remain so for ∼600 years. In deep waters, the aragonite saturation horizon will rise, reaching the base of the surface mixed layer by 2140 AD and likely remaining there for over a millennium. The survival of aragonite-secreting organisms is consequently threatened on long timescales. |
format |
Text |
author |
Luo, Yiming Boudreau, Bernard P. Mucci, Alfonso |
author_facet |
Luo, Yiming Boudreau, Bernard P. Mucci, Alfonso |
author_sort |
Luo, Yiming |
title |
Disparate acidification and calcium carbonate desaturation of deep and shallow waters of the Arctic Ocean |
title_short |
Disparate acidification and calcium carbonate desaturation of deep and shallow waters of the Arctic Ocean |
title_full |
Disparate acidification and calcium carbonate desaturation of deep and shallow waters of the Arctic Ocean |
title_fullStr |
Disparate acidification and calcium carbonate desaturation of deep and shallow waters of the Arctic Ocean |
title_full_unstemmed |
Disparate acidification and calcium carbonate desaturation of deep and shallow waters of the Arctic Ocean |
title_sort |
disparate acidification and calcium carbonate desaturation of deep and shallow waters of the arctic ocean |
publisher |
Nature Publishing Group |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5036158/ http://www.ncbi.nlm.nih.gov/pubmed/27659188 https://doi.org/10.1038/ncomms12821 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5036158/ http://www.ncbi.nlm.nih.gov/pubmed/27659188 http://dx.doi.org/10.1038/ncomms12821 |
op_rights |
Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
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CC-BY |
op_doi |
https://doi.org/10.1038/ncomms12821 |
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Nature Communications |
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7 |
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1 |
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1766320675120742400 |