Thermodynamics of sea ice phase composition revisited
International audience Pure ice, brine and solid minerals are the main contributors to sea ice mass. Constitutional changes with salinity and temperature exert a fundamental control on sea ice physical, chemical, and biological properties. However, current estimation methods and model representation...
Published in: | Journal of Geophysical Research: Oceans |
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Main Authors: | , , , |
Other Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2019
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Subjects: | |
Online Access: | https://hal.sorbonne-universite.fr/hal-02179263 https://hal.sorbonne-universite.fr/hal-02179263/document https://hal.sorbonne-universite.fr/hal-02179263/file/Vancoppenolle_et_al_TEOS10_phase_v2.0_no_footnotes.pdf https://doi.org/10.1029/2018JC014611 |
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Archives ouvertes de Paris-Saclay |
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English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
spellingShingle |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology Vancoppenolle, Martin Madec, Gurvan Thomas, Max Mcdougall, Trevor, J Thermodynamics of sea ice phase composition revisited |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
description |
International audience Pure ice, brine and solid minerals are the main contributors to sea ice mass. Constitutional changes with salinity and temperature exert a fundamental control on sea ice physical, chemical, and biological properties. However, current estimation methods and model representations of the sea ice phase composition suffer from two limitations—in a context of poorly quantified uncertainties. First, salt minerals are neglected. Second, formulations are inconsistent with international standards, in particular with the International Thermodynamic Equation of Seawater (TEOS‐10). To address these issues, we revisit the thermodynamics of the sea ice phase composition by confronting observations, theory, and the usual computation methods. We find remarkable agreement between observations and the Gibbs‐Pitzer theory as implemented in FREZCHEM, both for brine salinity (RMSE = 1.9 g/kg) and liquid H2O mass fraction (RMSE = 8.6 g/kg). On this basis, we propose expanded sea ice phase composition equations including minerals, expressed in terms of International Temperature Scale 1990 temperature and absolute salinity, and valid down to the eutectic temperature (−36.2 °C). These equations precisely reproduce FREZCHEM, outcompeting currently used calculation techniques. We also suggest a modification of the TEOS‐10 seawater Gibbs function giving a liquidus curve consistent with observations down to the eutectic temperature without changing TEOS‐10 inside its original validity range. |
author2 |
Nucleus for European Modeling of the Ocean (NEMO R&D ) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-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)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-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)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) University of East Anglia Norwich (UEA) University of New South Wales Sydney (UNSW) European Project: 730997,EUROCHAMP2020(2020) |
format |
Article in Journal/Newspaper |
author |
Vancoppenolle, Martin Madec, Gurvan Thomas, Max Mcdougall, Trevor, J |
author_facet |
Vancoppenolle, Martin Madec, Gurvan Thomas, Max Mcdougall, Trevor, J |
author_sort |
Vancoppenolle, Martin |
title |
Thermodynamics of sea ice phase composition revisited |
title_short |
Thermodynamics of sea ice phase composition revisited |
title_full |
Thermodynamics of sea ice phase composition revisited |
title_fullStr |
Thermodynamics of sea ice phase composition revisited |
title_full_unstemmed |
Thermodynamics of sea ice phase composition revisited |
title_sort |
thermodynamics of sea ice phase composition revisited |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.sorbonne-universite.fr/hal-02179263 https://hal.sorbonne-universite.fr/hal-02179263/document https://hal.sorbonne-universite.fr/hal-02179263/file/Vancoppenolle_et_al_TEOS10_phase_v2.0_no_footnotes.pdf https://doi.org/10.1029/2018JC014611 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
ISSN: 2169-9275 EISSN: 2169-9291 Journal of Geophysical Research. Oceans https://hal.sorbonne-universite.fr/hal-02179263 Journal of Geophysical Research. Oceans, 2019, 124 (1), pp.615-634. ⟨10.1029/2018JC014611⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2018JC014611 info:eu-repo/grantAgreement//730997/EU/European Union’s Horizon 2020 research and innovation programme under grant agreement/EUROCHAMP2020 hal-02179263 https://hal.sorbonne-universite.fr/hal-02179263 https://hal.sorbonne-universite.fr/hal-02179263/document https://hal.sorbonne-universite.fr/hal-02179263/file/Vancoppenolle_et_al_TEOS10_phase_v2.0_no_footnotes.pdf doi:10.1029/2018JC014611 WOS: 000458718600034 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2018JC014611 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
124 |
container_issue |
1 |
container_start_page |
615 |
op_container_end_page |
634 |
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1810476274374672384 |
spelling |
ftuniparissaclay:oai:HAL:hal-02179263v1 2024-09-15T18:34:25+00:00 Thermodynamics of sea ice phase composition revisited Vancoppenolle, Martin Madec, Gurvan Thomas, Max Mcdougall, Trevor, J Nucleus for European Modeling of the Ocean (NEMO R&D ) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-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)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-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)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) University of East Anglia Norwich (UEA) University of New South Wales Sydney (UNSW) European Project: 730997,EUROCHAMP2020(2020) 2019 https://hal.sorbonne-universite.fr/hal-02179263 https://hal.sorbonne-universite.fr/hal-02179263/document https://hal.sorbonne-universite.fr/hal-02179263/file/Vancoppenolle_et_al_TEOS10_phase_v2.0_no_footnotes.pdf https://doi.org/10.1029/2018JC014611 en eng HAL CCSD Wiley-Blackwell info:eu-repo/semantics/altIdentifier/doi/10.1029/2018JC014611 info:eu-repo/grantAgreement//730997/EU/European Union’s Horizon 2020 research and innovation programme under grant agreement/EUROCHAMP2020 hal-02179263 https://hal.sorbonne-universite.fr/hal-02179263 https://hal.sorbonne-universite.fr/hal-02179263/document https://hal.sorbonne-universite.fr/hal-02179263/file/Vancoppenolle_et_al_TEOS10_phase_v2.0_no_footnotes.pdf doi:10.1029/2018JC014611 WOS: 000458718600034 info:eu-repo/semantics/OpenAccess ISSN: 2169-9275 EISSN: 2169-9291 Journal of Geophysical Research. Oceans https://hal.sorbonne-universite.fr/hal-02179263 Journal of Geophysical Research. Oceans, 2019, 124 (1), pp.615-634. ⟨10.1029/2018JC014611⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology info:eu-repo/semantics/article Journal articles 2019 ftuniparissaclay https://doi.org/10.1029/2018JC014611 2024-08-01T23:49:23Z International audience Pure ice, brine and solid minerals are the main contributors to sea ice mass. Constitutional changes with salinity and temperature exert a fundamental control on sea ice physical, chemical, and biological properties. However, current estimation methods and model representations of the sea ice phase composition suffer from two limitations—in a context of poorly quantified uncertainties. First, salt minerals are neglected. Second, formulations are inconsistent with international standards, in particular with the International Thermodynamic Equation of Seawater (TEOS‐10). To address these issues, we revisit the thermodynamics of the sea ice phase composition by confronting observations, theory, and the usual computation methods. We find remarkable agreement between observations and the Gibbs‐Pitzer theory as implemented in FREZCHEM, both for brine salinity (RMSE = 1.9 g/kg) and liquid H2O mass fraction (RMSE = 8.6 g/kg). On this basis, we propose expanded sea ice phase composition equations including minerals, expressed in terms of International Temperature Scale 1990 temperature and absolute salinity, and valid down to the eutectic temperature (−36.2 °C). These equations precisely reproduce FREZCHEM, outcompeting currently used calculation techniques. We also suggest a modification of the TEOS‐10 seawater Gibbs function giving a liquidus curve consistent with observations down to the eutectic temperature without changing TEOS‐10 inside its original validity range. Article in Journal/Newspaper Sea ice Archives ouvertes de Paris-Saclay Journal of Geophysical Research: Oceans 124 1 615 634 |