Episodic release of CO2 from the high-latitude North Atlantic Ocean during the last 135 kyr
Antarctic ice cores document glacial-interglacial and millennial-scale variability in atmospheric pCO2 over the past 800 kyr. The ocean, as the largest active carbon reservoir on this timescale, is thought to have played a dominant role in these pCO2 fluctuations, but it remains unclear how and wher...
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ftpubmed:oai:pubmedcentral.nih.gov:5322501 2023-05-15T13:52:44+02:00 Episodic release of CO2 from the high-latitude North Atlantic Ocean during the last 135 kyr Ezat, Mohamed M. Rasmussen, Tine L. Hönisch, Bärbel Groeneveld, Jeroen deMenocal, Peter 2017-02-22 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5322501/ http://www.ncbi.nlm.nih.gov/pubmed/28224985 https://doi.org/10.1038/ncomms14498 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5322501/ http://www.ncbi.nlm.nih.gov/pubmed/28224985 http://dx.doi.org/10.1038/ncomms14498 Copyright © 2017, 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 2017 ftpubmed https://doi.org/10.1038/ncomms14498 2017-03-05T01:28:20Z Antarctic ice cores document glacial-interglacial and millennial-scale variability in atmospheric pCO2 over the past 800 kyr. The ocean, as the largest active carbon reservoir on this timescale, is thought to have played a dominant role in these pCO2 fluctuations, but it remains unclear how and where in the ocean CO2 was stored during glaciations and released during (de)glacial millennial-scale climate events. The evolution of surface ocean pCO2 in key locations can therefore provide important clues for understanding the ocean's role in Pleistocene carbon cycling. Here we present a 135-kyr record of shallow subsurface pCO2 and nutrient levels from the Norwegian Sea, an area of intense CO2 uptake from the atmosphere today. Our results suggest that the Norwegian Sea probably acted as a CO2 source towards the end of Heinrich stadials HS1, HS4 and HS11, and may have contributed to the increase in atmospheric pCO2 at these times. Text Antarc* Antarctic North Atlantic Norwegian Sea PubMed Central (PMC) Antarctic Norwegian Sea Nature Communications 8 1 |
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Article Ezat, Mohamed M. Rasmussen, Tine L. Hönisch, Bärbel Groeneveld, Jeroen deMenocal, Peter Episodic release of CO2 from the high-latitude North Atlantic Ocean during the last 135 kyr |
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Article |
description |
Antarctic ice cores document glacial-interglacial and millennial-scale variability in atmospheric pCO2 over the past 800 kyr. The ocean, as the largest active carbon reservoir on this timescale, is thought to have played a dominant role in these pCO2 fluctuations, but it remains unclear how and where in the ocean CO2 was stored during glaciations and released during (de)glacial millennial-scale climate events. The evolution of surface ocean pCO2 in key locations can therefore provide important clues for understanding the ocean's role in Pleistocene carbon cycling. Here we present a 135-kyr record of shallow subsurface pCO2 and nutrient levels from the Norwegian Sea, an area of intense CO2 uptake from the atmosphere today. Our results suggest that the Norwegian Sea probably acted as a CO2 source towards the end of Heinrich stadials HS1, HS4 and HS11, and may have contributed to the increase in atmospheric pCO2 at these times. |
format |
Text |
author |
Ezat, Mohamed M. Rasmussen, Tine L. Hönisch, Bärbel Groeneveld, Jeroen deMenocal, Peter |
author_facet |
Ezat, Mohamed M. Rasmussen, Tine L. Hönisch, Bärbel Groeneveld, Jeroen deMenocal, Peter |
author_sort |
Ezat, Mohamed M. |
title |
Episodic release of CO2 from the high-latitude North Atlantic Ocean during the last 135 kyr |
title_short |
Episodic release of CO2 from the high-latitude North Atlantic Ocean during the last 135 kyr |
title_full |
Episodic release of CO2 from the high-latitude North Atlantic Ocean during the last 135 kyr |
title_fullStr |
Episodic release of CO2 from the high-latitude North Atlantic Ocean during the last 135 kyr |
title_full_unstemmed |
Episodic release of CO2 from the high-latitude North Atlantic Ocean during the last 135 kyr |
title_sort |
episodic release of co2 from the high-latitude north atlantic ocean during the last 135 kyr |
publisher |
Nature Publishing Group |
publishDate |
2017 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5322501/ http://www.ncbi.nlm.nih.gov/pubmed/28224985 https://doi.org/10.1038/ncomms14498 |
geographic |
Antarctic Norwegian Sea |
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Antarctic Norwegian Sea |
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Antarc* Antarctic North Atlantic Norwegian Sea |
genre_facet |
Antarc* Antarctic North Atlantic Norwegian Sea |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5322501/ http://www.ncbi.nlm.nih.gov/pubmed/28224985 http://dx.doi.org/10.1038/ncomms14498 |
op_rights |
Copyright © 2017, 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/ncomms14498 |
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Nature Communications |
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8 |
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1 |
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1766257204479918080 |