Modeling the marine aragonite cycle: changes under rising carbon dioxide and its role in shallow water CaCO 3 dissolution
International audience The marine aragonite cycle has been included in the global biogeochemical model PISCES to study the role of aragonite in shallow water CaCO 3 dissolution. Aragonite production is parameterized as a function of mesozooplankton biomass and aragonite saturation state of ambient w...
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ftinsu:oai:HAL:hal-04115081v1 2023-06-18T03:41:42+02:00 Modeling the marine aragonite cycle: changes under rising carbon dioxide and its role in shallow water CaCO 3 dissolution Gangstø, R. Gehlen, M. Schneider, B. Bopp, L. Aumont, O. Joos, F. Laboratoire des Sciences du Climat et de l'Environnement (LSCE) Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) 2008 https://hal.science/hal-04115081 https://doi.org/10.5194/bg-5-1057-200810.5194/bgd-5-1655-2008 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-5-1057-200810.5194/bgd-5-1655-2008 hal-04115081 https://hal.science/hal-04115081 BIBCODE: 2008BGeo.5.1057G doi:10.5194/bg-5-1057-200810.5194/bgd-5-1655-2008 Biogeosciences https://hal.science/hal-04115081 Biogeosciences, 2008, 5, pp.1057-1072. ⟨10.5194/bg-5-1057-200810.5194/bgd-5-1655-2008⟩ Earth Science [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2008 ftinsu https://doi.org/10.5194/bg-5-1057-200810.5194/bgd-5-1655-2008 2023-06-05T19:25:53Z International audience The marine aragonite cycle has been included in the global biogeochemical model PISCES to study the role of aragonite in shallow water CaCO 3 dissolution. Aragonite production is parameterized as a function of mesozooplankton biomass and aragonite saturation state of ambient waters. Observation-based estimates of marine carbonate production and dissolution are well reproduced by the model and about 60% of the combined CaCO 3 water column dissolution from aragonite and calcite is simulated above 2000 m. In contrast, a calcite-only version yields a much smaller fraction. This suggests that the aragonite cycle should be included in models for a realistic representation of CaCO 3 dissolution and alkalinity. For the SRES A2 CO 2 scenario, production rates of aragonite are projected to notably decrease after 2050. By the end of this century, global aragonite production is reduced by 29% and total CaCO 3 production by 19% relative to pre-industrial. Geographically, the effect from increasing atmospheric CO 2 , and the subsequent reduction in saturation state, is largest in the subpolar and polar areas where the modeled aragonite production is projected to decrease by 65% until 2100. Article in Journal/Newspaper Mesozooplankton Institut national des sciences de l'Univers: HAL-INSU |
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Open Polar |
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Institut national des sciences de l'Univers: HAL-INSU |
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ftinsu |
language |
English |
topic |
Earth Science [SDU]Sciences of the Universe [physics] |
spellingShingle |
Earth Science [SDU]Sciences of the Universe [physics] Gangstø, R. Gehlen, M. Schneider, B. Bopp, L. Aumont, O. Joos, F. Modeling the marine aragonite cycle: changes under rising carbon dioxide and its role in shallow water CaCO 3 dissolution |
topic_facet |
Earth Science [SDU]Sciences of the Universe [physics] |
description |
International audience The marine aragonite cycle has been included in the global biogeochemical model PISCES to study the role of aragonite in shallow water CaCO 3 dissolution. Aragonite production is parameterized as a function of mesozooplankton biomass and aragonite saturation state of ambient waters. Observation-based estimates of marine carbonate production and dissolution are well reproduced by the model and about 60% of the combined CaCO 3 water column dissolution from aragonite and calcite is simulated above 2000 m. In contrast, a calcite-only version yields a much smaller fraction. This suggests that the aragonite cycle should be included in models for a realistic representation of CaCO 3 dissolution and alkalinity. For the SRES A2 CO 2 scenario, production rates of aragonite are projected to notably decrease after 2050. By the end of this century, global aragonite production is reduced by 29% and total CaCO 3 production by 19% relative to pre-industrial. Geographically, the effect from increasing atmospheric CO 2 , and the subsequent reduction in saturation state, is largest in the subpolar and polar areas where the modeled aragonite production is projected to decrease by 65% until 2100. |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement (LSCE) Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Gangstø, R. Gehlen, M. Schneider, B. Bopp, L. Aumont, O. Joos, F. |
author_facet |
Gangstø, R. Gehlen, M. Schneider, B. Bopp, L. Aumont, O. Joos, F. |
author_sort |
Gangstø, R. |
title |
Modeling the marine aragonite cycle: changes under rising carbon dioxide and its role in shallow water CaCO 3 dissolution |
title_short |
Modeling the marine aragonite cycle: changes under rising carbon dioxide and its role in shallow water CaCO 3 dissolution |
title_full |
Modeling the marine aragonite cycle: changes under rising carbon dioxide and its role in shallow water CaCO 3 dissolution |
title_fullStr |
Modeling the marine aragonite cycle: changes under rising carbon dioxide and its role in shallow water CaCO 3 dissolution |
title_full_unstemmed |
Modeling the marine aragonite cycle: changes under rising carbon dioxide and its role in shallow water CaCO 3 dissolution |
title_sort |
modeling the marine aragonite cycle: changes under rising carbon dioxide and its role in shallow water caco 3 dissolution |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.science/hal-04115081 https://doi.org/10.5194/bg-5-1057-200810.5194/bgd-5-1655-2008 |
genre |
Mesozooplankton |
genre_facet |
Mesozooplankton |
op_source |
Biogeosciences https://hal.science/hal-04115081 Biogeosciences, 2008, 5, pp.1057-1072. ⟨10.5194/bg-5-1057-200810.5194/bgd-5-1655-2008⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-5-1057-200810.5194/bgd-5-1655-2008 hal-04115081 https://hal.science/hal-04115081 BIBCODE: 2008BGeo.5.1057G doi:10.5194/bg-5-1057-200810.5194/bgd-5-1655-2008 |
op_doi |
https://doi.org/10.5194/bg-5-1057-200810.5194/bgd-5-1655-2008 |
_version_ |
1769007352343691264 |