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 ocean(2,3), yet the observational evidence to verify this prediction has been missing. Here, using an observation-based product of the oceanic partial pressure of CO2 (p(CO2))...

Full description

Bibliographic Details
Published in:Nature Climate Change
Main Authors: Landschutzer, Peter, Gruber, Nicolas, Bakker, Dorothee C. E., Stemmler, Irene, Six, Katharina D.
Format: Text
Language:English
Published: Nature Publishing Group
Subjects:
geo
Online Access:https://doi.org/10.1038/s41558-017-0057-x
https://archimer.ifremer.fr/doc/00673/78497/80775.pdf
https://archimer.ifremer.fr/doc/00673/78497/80776.pdf
https://archimer.ifremer.fr/doc/00673/78497/
id fttriple:oai:gotriple.eu:10670/1.k6ea95
record_format openpolar
spelling fttriple:oai:gotriple.eu:10670/1.k6ea95 2023-05-15T17:51:18+02:00 Strengthening seasonal marine CO2 variations due to increasing atmospheric CO2 Landschutzer, Peter Gruber, Nicolas Bakker, Dorothee C. E. Stemmler, Irene Six, Katharina D. https://doi.org/10.1038/s41558-017-0057-x https://archimer.ifremer.fr/doc/00673/78497/80775.pdf https://archimer.ifremer.fr/doc/00673/78497/80776.pdf https://archimer.ifremer.fr/doc/00673/78497/ en eng Nature Publishing Group doi:10.1038/s41558-017-0057-x 10670/1.k6ea95 https://archimer.ifremer.fr/doc/00673/78497/80775.pdf https://archimer.ifremer.fr/doc/00673/78497/80776.pdf https://archimer.ifremer.fr/doc/00673/78497/ other Archimer, archive institutionnelle de l'Ifremer Nature Climate Change (1758-678X) (Nature Publishing Group), 2018-02 , Vol. 8 , N. 2 , P. 146-150 envir geo Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ fttriple https://doi.org/10.1038/s41558-017-0057-x 2023-01-22T18:02:34Z The increase of atmospheric CO2 (ref. (1)) has been predicted to impact the seasonal cycle of inorganic carbon in the global ocean(2,3), yet the observational evidence to verify this prediction has been missing. Here, using an observation-based product of the oceanic partial pressure of CO2 (p(CO2)) covering the past 34 years, we find that the winter-to-summer difference of the p(CO2) has increased on average by 2.2 +/- 0.4 mu atm per decade from 1982 to 2015 poleward of 10 degrees 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 p(CO2) 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 fisheries(4). 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. Text Ocean acidification Unknown Nature Climate Change 8 2 146 150
institution Open Polar
collection Unknown
op_collection_id fttriple
language English
topic envir
geo
spellingShingle envir
geo
Landschutzer, Peter
Gruber, Nicolas
Bakker, Dorothee C. E.
Stemmler, Irene
Six, Katharina D.
Strengthening seasonal marine CO2 variations due to increasing atmospheric CO2
topic_facet envir
geo
description The increase of atmospheric CO2 (ref. (1)) has been predicted to impact the seasonal cycle of inorganic carbon in the global ocean(2,3), yet the observational evidence to verify this prediction has been missing. Here, using an observation-based product of the oceanic partial pressure of CO2 (p(CO2)) covering the past 34 years, we find that the winter-to-summer difference of the p(CO2) has increased on average by 2.2 +/- 0.4 mu atm per decade from 1982 to 2015 poleward of 10 degrees 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 p(CO2) 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 fisheries(4). 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 Text
author Landschutzer, Peter
Gruber, Nicolas
Bakker, Dorothee C. E.
Stemmler, Irene
Six, Katharina D.
author_facet Landschutzer, Peter
Gruber, Nicolas
Bakker, Dorothee C. E.
Stemmler, Irene
Six, Katharina D.
author_sort Landschutzer, 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
publisher Nature Publishing Group
url https://doi.org/10.1038/s41558-017-0057-x
https://archimer.ifremer.fr/doc/00673/78497/80775.pdf
https://archimer.ifremer.fr/doc/00673/78497/80776.pdf
https://archimer.ifremer.fr/doc/00673/78497/
genre Ocean acidification
genre_facet Ocean acidification
op_source Archimer, archive institutionnelle de l'Ifremer
Nature Climate Change (1758-678X) (Nature Publishing Group), 2018-02 , Vol. 8 , N. 2 , P. 146-150
op_relation doi:10.1038/s41558-017-0057-x
10670/1.k6ea95
https://archimer.ifremer.fr/doc/00673/78497/80775.pdf
https://archimer.ifremer.fr/doc/00673/78497/80776.pdf
https://archimer.ifremer.fr/doc/00673/78497/
op_rights other
op_doi https://doi.org/10.1038/s41558-017-0057-x
container_title Nature Climate Change
container_volume 8
container_issue 2
container_start_page 146
op_container_end_page 150
_version_ 1766158417267785728