Strengthening seasonal marine CO2 variations due to increasing atmospheric CO2
The increase of atmospheric CO2 (ref. 1) has been predicted to impact the seasonal cycle of inorganic carbon in the global ocean2,3, yet the observational evidence to verify this prediction has been missing. Here, using an observation-based product of the oceanic partial pressure of CO2 (pCO2) cover...
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ftuniveastangl:oai:ueaeprints.uea.ac.uk:66135 2023-05-15T17:51:21+02:00 Strengthening seasonal marine CO2 variations due to increasing atmospheric CO2 Landschützer, Peter Gruber, Nicolas Bakker, Dorothee C. E. Stemmler, Irene Six, Katharina D. 2018-01-29 application/pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/ https://ueaeprints.uea.ac.uk/id/eprint/66135/1/Figure_4.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/2/Supplementary_information.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/3/Accepted_manuscript.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/4/Figure_1.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/5/Figure_2.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/6/Figure_3.pdf https://doi.org/10.1038/s41558-017-0057-x en eng https://ueaeprints.uea.ac.uk/id/eprint/66135/1/Figure_4.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/2/Supplementary_information.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/3/Accepted_manuscript.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/4/Figure_1.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/5/Figure_2.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/6/Figure_3.pdf Landschützer, Peter, Gruber, Nicolas, Bakker, Dorothee C. E., Stemmler, Irene and Six, Katharina D. (2018) Strengthening seasonal marine CO2 variations due to increasing atmospheric CO2. Nature Climate Change, 8. 146–150. ISSN 1758-678X doi:10.1038/s41558-017-0057-x Article PeerReviewed 2018 ftuniveastangl https://doi.org/10.1038/s41558-017-0057-x 2023-03-23T23:32:23Z The increase of atmospheric CO2 (ref. 1) has been predicted to impact the seasonal cycle of inorganic carbon in the global ocean2,3, yet the observational evidence to verify this prediction has been missing. Here, using an observation-based product of the oceanic partial pressure of CO2 (pCO2) covering the past 34 years, we find that the winter-to-summer difference of the pCO2 has increased on average by 2.2 ± 0.4 μatm per decade from 1982 to 2015 poleward of 10° latitude. This is largely in agreement with the trend expected from thermodynamic considerations. Most of the increase stems from the seasonality of the drivers acting on an increasing oceanic pCO2 caused by the uptake of anthropogenic CO2 from the atmosphere. In the high latitudes, the concurrent ocean-acidification-induced changes in the buffer capacity of the ocean enhance this effect. This strengthening of the seasonal winter-to-summer difference pushes the global ocean towards critical thresholds earlier, inducing stress to ocean ecosystems and fisheries4. Our study provides observational evidence for this strengthening seasonal difference in the oceanic carbon cycle on a global scale, illustrating the inevitable consequences of anthropogenic CO2 emissions. Article in Journal/Newspaper Ocean acidification University of East Anglia: UEA Digital Repository Nature Climate Change 8 2 146 150 |
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Open Polar |
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University of East Anglia: UEA Digital Repository |
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ftuniveastangl |
language |
English |
description |
The increase of atmospheric CO2 (ref. 1) has been predicted to impact the seasonal cycle of inorganic carbon in the global ocean2,3, yet the observational evidence to verify this prediction has been missing. Here, using an observation-based product of the oceanic partial pressure of CO2 (pCO2) covering the past 34 years, we find that the winter-to-summer difference of the pCO2 has increased on average by 2.2 ± 0.4 μatm per decade from 1982 to 2015 poleward of 10° latitude. This is largely in agreement with the trend expected from thermodynamic considerations. Most of the increase stems from the seasonality of the drivers acting on an increasing oceanic pCO2 caused by the uptake of anthropogenic CO2 from the atmosphere. In the high latitudes, the concurrent ocean-acidification-induced changes in the buffer capacity of the ocean enhance this effect. This strengthening of the seasonal winter-to-summer difference pushes the global ocean towards critical thresholds earlier, inducing stress to ocean ecosystems and fisheries4. Our study provides observational evidence for this strengthening seasonal difference in the oceanic carbon cycle on a global scale, illustrating the inevitable consequences of anthropogenic CO2 emissions. |
format |
Article in Journal/Newspaper |
author |
Landschützer, Peter Gruber, Nicolas Bakker, Dorothee C. E. Stemmler, Irene Six, Katharina D. |
spellingShingle |
Landschützer, Peter Gruber, Nicolas Bakker, Dorothee C. E. Stemmler, Irene Six, Katharina D. Strengthening seasonal marine CO2 variations due to increasing atmospheric CO2 |
author_facet |
Landschützer, Peter Gruber, Nicolas Bakker, Dorothee C. E. Stemmler, Irene Six, Katharina D. |
author_sort |
Landschützer, Peter |
title |
Strengthening seasonal marine CO2 variations due to increasing atmospheric CO2 |
title_short |
Strengthening seasonal marine CO2 variations due to increasing atmospheric CO2 |
title_full |
Strengthening seasonal marine CO2 variations due to increasing atmospheric CO2 |
title_fullStr |
Strengthening seasonal marine CO2 variations due to increasing atmospheric CO2 |
title_full_unstemmed |
Strengthening seasonal marine CO2 variations due to increasing atmospheric CO2 |
title_sort |
strengthening seasonal marine co2 variations due to increasing atmospheric co2 |
publishDate |
2018 |
url |
https://ueaeprints.uea.ac.uk/id/eprint/66135/ https://ueaeprints.uea.ac.uk/id/eprint/66135/1/Figure_4.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/2/Supplementary_information.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/3/Accepted_manuscript.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/4/Figure_1.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/5/Figure_2.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/6/Figure_3.pdf https://doi.org/10.1038/s41558-017-0057-x |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://ueaeprints.uea.ac.uk/id/eprint/66135/1/Figure_4.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/2/Supplementary_information.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/3/Accepted_manuscript.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/4/Figure_1.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/5/Figure_2.pdf https://ueaeprints.uea.ac.uk/id/eprint/66135/6/Figure_3.pdf Landschützer, Peter, Gruber, Nicolas, Bakker, Dorothee C. E., Stemmler, Irene and Six, Katharina D. (2018) Strengthening seasonal marine CO2 variations due to increasing atmospheric CO2. Nature Climate Change, 8. 146–150. ISSN 1758-678X doi:10.1038/s41558-017-0057-x |
op_doi |
https://doi.org/10.1038/s41558-017-0057-x |
container_title |
Nature Climate Change |
container_volume |
8 |
container_issue |
2 |
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146 |
op_container_end_page |
150 |
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