Role of mode and intermediate waters in future ocean acidification: Analysis of CMIP5 models
International audience Consistent with recent observations, Coupled Model Intercomparison Project 5 Earth System Models project highest acidification rates in subsurface waters. Using seven Earth System Models, we find that high acidification rates in mode and intermediate waters (MIW) on centennial...
Published in: | Geophysical Research Letters |
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Online Access: | https://hal.archives-ouvertes.fr/hal-03209735 https://hal.archives-ouvertes.fr/hal-03209735/document https://hal.archives-ouvertes.fr/hal-03209735/file/grl.50414.pdf https://doi.org/10.1002/grl.50414 |
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ftccsdartic:oai:HAL:hal-03209735v1 2023-05-15T17:51:15+02:00 Role of mode and intermediate waters in future ocean acidification: Analysis of CMIP5 models Resplandy, L. Bopp, L. Orr, J. C. Dunne, J. P. Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Modelling the Earth Response to Multiple Anthropogenic Interactions and Dynamics (MERMAID) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-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)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) NOAA Geophysical Fluid Dynamics Laboratory (GFDL) National Oceanic and Atmospheric Administration (NOAA) 2013 https://hal.archives-ouvertes.fr/hal-03209735 https://hal.archives-ouvertes.fr/hal-03209735/document https://hal.archives-ouvertes.fr/hal-03209735/file/grl.50414.pdf https://doi.org/10.1002/grl.50414 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1002/grl.50414 hal-03209735 https://hal.archives-ouvertes.fr/hal-03209735 https://hal.archives-ouvertes.fr/hal-03209735/document https://hal.archives-ouvertes.fr/hal-03209735/file/grl.50414.pdf doi:10.1002/grl.50414 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.archives-ouvertes.fr/hal-03209735 Geophysical Research Letters, American Geophysical Union, 2013, 40 (12), pp.3091-3095. ⟨10.1002/grl.50414⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2013 ftccsdartic https://doi.org/10.1002/grl.50414 2021-12-19T00:14:21Z International audience Consistent with recent observations, Coupled Model Intercomparison Project 5 Earth System Models project highest acidification rates in subsurface waters. Using seven Earth System Models, we find that high acidification rates in mode and intermediate waters (MIW) on centennial time scales (−0.0008 to −0.0023 ± 0.0001 yr−1 depending on the scenario) are predominantly explained by the geochemical effect of increasing atmospheric CO2, whereas physical and biological climate change feedbacks explain less than 10% of the simulated changes. MIW are characterized by a larger surface area to volume ratio than deep and bottom waters leading to 5 to 10 times larger carbon uptake. In addition, MIW geochemical properties result in a sensitivity to increasing carbon concentration twice larger than surface waters (ΔH+ of +1.2×10−4 mmol m−3 for every mmol m−3 of dissolved carbon in MIW versus +0.6×10−4 in surface waters). Low pH transported by mode and intermediate waters is likely to influence surface pH in upwelling regions decades after their isolation from the atmosphere. Article in Journal/Newspaper Ocean acidification Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Geophysical Research Letters 40 12 3091 3095 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Resplandy, L. Bopp, L. Orr, J. C. Dunne, J. P. Role of mode and intermediate waters in future ocean acidification: Analysis of CMIP5 models |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Consistent with recent observations, Coupled Model Intercomparison Project 5 Earth System Models project highest acidification rates in subsurface waters. Using seven Earth System Models, we find that high acidification rates in mode and intermediate waters (MIW) on centennial time scales (−0.0008 to −0.0023 ± 0.0001 yr−1 depending on the scenario) are predominantly explained by the geochemical effect of increasing atmospheric CO2, whereas physical and biological climate change feedbacks explain less than 10% of the simulated changes. MIW are characterized by a larger surface area to volume ratio than deep and bottom waters leading to 5 to 10 times larger carbon uptake. In addition, MIW geochemical properties result in a sensitivity to increasing carbon concentration twice larger than surface waters (ΔH+ of +1.2×10−4 mmol m−3 for every mmol m−3 of dissolved carbon in MIW versus +0.6×10−4 in surface waters). Low pH transported by mode and intermediate waters is likely to influence surface pH in upwelling regions decades after their isolation from the atmosphere. |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Modelling the Earth Response to Multiple Anthropogenic Interactions and Dynamics (MERMAID) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-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)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) NOAA Geophysical Fluid Dynamics Laboratory (GFDL) National Oceanic and Atmospheric Administration (NOAA) |
format |
Article in Journal/Newspaper |
author |
Resplandy, L. Bopp, L. Orr, J. C. Dunne, J. P. |
author_facet |
Resplandy, L. Bopp, L. Orr, J. C. Dunne, J. P. |
author_sort |
Resplandy, L. |
title |
Role of mode and intermediate waters in future ocean acidification: Analysis of CMIP5 models |
title_short |
Role of mode and intermediate waters in future ocean acidification: Analysis of CMIP5 models |
title_full |
Role of mode and intermediate waters in future ocean acidification: Analysis of CMIP5 models |
title_fullStr |
Role of mode and intermediate waters in future ocean acidification: Analysis of CMIP5 models |
title_full_unstemmed |
Role of mode and intermediate waters in future ocean acidification: Analysis of CMIP5 models |
title_sort |
role of mode and intermediate waters in future ocean acidification: analysis of cmip5 models |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.archives-ouvertes.fr/hal-03209735 https://hal.archives-ouvertes.fr/hal-03209735/document https://hal.archives-ouvertes.fr/hal-03209735/file/grl.50414.pdf https://doi.org/10.1002/grl.50414 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.archives-ouvertes.fr/hal-03209735 Geophysical Research Letters, American Geophysical Union, 2013, 40 (12), pp.3091-3095. ⟨10.1002/grl.50414⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/grl.50414 hal-03209735 https://hal.archives-ouvertes.fr/hal-03209735 https://hal.archives-ouvertes.fr/hal-03209735/document https://hal.archives-ouvertes.fr/hal-03209735/file/grl.50414.pdf doi:10.1002/grl.50414 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1002/grl.50414 |
container_title |
Geophysical Research Letters |
container_volume |
40 |
container_issue |
12 |
container_start_page |
3091 |
op_container_end_page |
3095 |
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1766158333424697344 |