A multi-decadal delay in the onset of corrosive ‘acidified’ waters in the Ross Sea of Antarctica due to strong air-sea CO 2 disequilibrium
International audience Antarctic coastal waters have an abundance of marine organisms that secrete the mineral aragonite for growth and survival. Increasing oceanic anthropogenic CO 2 uptake will push these waters to a point whereby aragonite will start to geochemically corrode, with direct conseque...
Published in: | Geophysical Research Letters |
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ftuniversailles:oai:HAL:hal-03200988v1 2024-04-28T07:58:02+00:00 A multi-decadal delay in the onset of corrosive ‘acidified’ waters in the Ross Sea of Antarctica due to strong air-sea CO 2 disequilibrium Mcneil, Ben Tagliabue, Alessandro Sweeney, Colm Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) 2010-10 https://hal.science/hal-03200988 https://hal.science/hal-03200988/document https://hal.science/hal-03200988/file/2010GL044597.pdf https://doi.org/10.1029/2010GL044597 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2010GL044597 hal-03200988 https://hal.science/hal-03200988 https://hal.science/hal-03200988/document https://hal.science/hal-03200988/file/2010GL044597.pdf doi:10.1029/2010GL044597 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-03200988 Geophysical Research Letters, 2010, 37 (19), pp.n/a-n/a. ⟨10.1029/2010GL044597⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2010 ftuniversailles https://doi.org/10.1029/2010GL044597 2024-04-04T17:34:31Z International audience Antarctic coastal waters have an abundance of marine organisms that secrete the mineral aragonite for growth and survival. Increasing oceanic anthropogenic CO 2 uptake will push these waters to a point whereby aragonite will start to geochemically corrode, with direct consequences for the Antarctic ecosystem. Here we combine surface CO 2 data in the Ross Sea, Antarctica with a regional ocean/sea-ice model to better pinpoint the timing of corrosive conditions. Our analysis suggests sea-ice cover and deep-water entrainment during winter results in 65% lower storage of anthropogenic CO 2 in comparison to atmospheric CO 2 equilibrium. This means that instead of corrosive 'acidified' waters beginning as early as the winter of 2015, anthropogenic CO 2 disequilibrium delays its onset by up to 30 years, giving this Antarctic marine ecosystem a several decade reprieve to corrosive conditions. Our results demonstrate a broader importance of understanding natural oceanic carbon cycle variability for the onset of corrosive conditions. Citation: McNeil, B. I., A. Tagliabue, and C. Sweeney (2010), A multi-decadal delay in the onset of corrosive 'acidified' waters in the Ross Sea of Antarctica due to strong air-sea CO 2 disequilibrium Article in Journal/Newspaper Antarc* Antarctic Antarctica Ross Sea Sea ice Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ Geophysical Research Letters 37 19 n/a n/a |
institution |
Open Polar |
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Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
op_collection_id |
ftuniversailles |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Mcneil, Ben Tagliabue, Alessandro Sweeney, Colm A multi-decadal delay in the onset of corrosive ‘acidified’ waters in the Ross Sea of Antarctica due to strong air-sea CO 2 disequilibrium |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience Antarctic coastal waters have an abundance of marine organisms that secrete the mineral aragonite for growth and survival. Increasing oceanic anthropogenic CO 2 uptake will push these waters to a point whereby aragonite will start to geochemically corrode, with direct consequences for the Antarctic ecosystem. Here we combine surface CO 2 data in the Ross Sea, Antarctica with a regional ocean/sea-ice model to better pinpoint the timing of corrosive conditions. Our analysis suggests sea-ice cover and deep-water entrainment during winter results in 65% lower storage of anthropogenic CO 2 in comparison to atmospheric CO 2 equilibrium. This means that instead of corrosive 'acidified' waters beginning as early as the winter of 2015, anthropogenic CO 2 disequilibrium delays its onset by up to 30 years, giving this Antarctic marine ecosystem a several decade reprieve to corrosive conditions. Our results demonstrate a broader importance of understanding natural oceanic carbon cycle variability for the onset of corrosive conditions. Citation: McNeil, B. I., A. Tagliabue, and C. Sweeney (2010), A multi-decadal delay in the onset of corrosive 'acidified' waters in the Ross Sea of Antarctica due to strong air-sea CO 2 disequilibrium |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) |
format |
Article in Journal/Newspaper |
author |
Mcneil, Ben Tagliabue, Alessandro Sweeney, Colm |
author_facet |
Mcneil, Ben Tagliabue, Alessandro Sweeney, Colm |
author_sort |
Mcneil, Ben |
title |
A multi-decadal delay in the onset of corrosive ‘acidified’ waters in the Ross Sea of Antarctica due to strong air-sea CO 2 disequilibrium |
title_short |
A multi-decadal delay in the onset of corrosive ‘acidified’ waters in the Ross Sea of Antarctica due to strong air-sea CO 2 disequilibrium |
title_full |
A multi-decadal delay in the onset of corrosive ‘acidified’ waters in the Ross Sea of Antarctica due to strong air-sea CO 2 disequilibrium |
title_fullStr |
A multi-decadal delay in the onset of corrosive ‘acidified’ waters in the Ross Sea of Antarctica due to strong air-sea CO 2 disequilibrium |
title_full_unstemmed |
A multi-decadal delay in the onset of corrosive ‘acidified’ waters in the Ross Sea of Antarctica due to strong air-sea CO 2 disequilibrium |
title_sort |
multi-decadal delay in the onset of corrosive ‘acidified’ waters in the ross sea of antarctica due to strong air-sea co 2 disequilibrium |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.science/hal-03200988 https://hal.science/hal-03200988/document https://hal.science/hal-03200988/file/2010GL044597.pdf https://doi.org/10.1029/2010GL044597 |
genre |
Antarc* Antarctic Antarctica Ross Sea Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Ross Sea Sea ice |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-03200988 Geophysical Research Letters, 2010, 37 (19), pp.n/a-n/a. ⟨10.1029/2010GL044597⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2010GL044597 hal-03200988 https://hal.science/hal-03200988 https://hal.science/hal-03200988/document https://hal.science/hal-03200988/file/2010GL044597.pdf doi:10.1029/2010GL044597 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2010GL044597 |
container_title |
Geophysical Research Letters |
container_volume |
37 |
container_issue |
19 |
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n/a |
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1797591470015774720 |