Modelling water isotopologues ($^1H^2H^{16}O$,$^1H_2$$^{17}O$) in the coupled numerical climate model iLOVECLIM (version 1.1.5)
International audience Stable water isotopes are used to infer changes in the hydrological cycle for different climate periods and various climatic archives. Following previous developments of δ18O in the coupled climate model of intermediate complexity, iLOVECLIM, we present here the implementation...
Published in: | Geoscientific Model Development |
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Language: | English |
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HAL CCSD
2024
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Online Access: | https://hal.science/hal-04505395 https://hal.science/hal-04505395/document https://hal.science/hal-04505395/file/gmd-17-2117-2024.pdf https://doi.org/10.5194/gmd-17-2117-2024 |
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Institut national des sciences de l'Univers: HAL-INSU |
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[SDE]Environmental Sciences |
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[SDE]Environmental Sciences Extier, Thomas Caley, Thibaut Roche, Didier, M Modelling water isotopologues ($^1H^2H^{16}O$,$^1H_2$$^{17}O$) in the coupled numerical climate model iLOVECLIM (version 1.1.5) |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience Stable water isotopes are used to infer changes in the hydrological cycle for different climate periods and various climatic archives. Following previous developments of δ18O in the coupled climate model of intermediate complexity, iLOVECLIM, we present here the implementation of the 1H2H16O and 1H217O water isotopes in the different components of this model and calculate the associated secondary markers deuterium excess (d-excess) and oxygen-17 excess (17O-excess) in the atmosphere and ocean. So far, the latter has only been modelled by the atmospheric model LMDZ4. Results of a 5000-year equilibrium simulation under preindustrial conditions are analysed and compared to observations and several isotope-enabled models for the atmosphere and ocean components. In the atmospheric component, the model correctly reproduces the first-order global distribution of the δ2H and d-excess as observed in the data (R=0.56 for δ2H and 0.36 for d-excess), even if local differences are observed. The model–data correlation is within the range of other water-isotope-enabled general circulation models. The main isotopic effects and the latitudinal gradient are properly modelled, similarly to previous water-isotope-enabled general circulation model simulations, despite a simplified atmospheric component in iLOVECLIM. One exception is observed in Antarctica where the model does not correctly estimate the water isotope composition, a consequence of the non-conservative behaviour of the advection scheme at a very low moisture content. The modelled 17O-excess presents a too-important dispersion of the values in comparison to the observations and is not correctly reproduced in the model, mainly because of the complex processes involved in the 17O-excess isotopic value. For the ocean, the model simulates an adequate isotopic ratio in comparison to the observations, except for local areas such as the surface of the Arabian Sea, a part of the Arctic and the western equatorial Indian Ocean. Data–model evaluation also ... |
author2 |
Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) 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) Modélisation du climat (CLIM) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-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)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Vrije Universiteit Amsterdam Amsterdam (VU) ANR-21-CE01-0001,HYDRATE,évaluer le cycle HYDrologique aux basses latitudes dans les modèles numéRiques de climAt en conTraignant les changements passés de salinitE de l'océan.(2021) |
format |
Article in Journal/Newspaper |
author |
Extier, Thomas Caley, Thibaut Roche, Didier, M |
author_facet |
Extier, Thomas Caley, Thibaut Roche, Didier, M |
author_sort |
Extier, Thomas |
title |
Modelling water isotopologues ($^1H^2H^{16}O$,$^1H_2$$^{17}O$) in the coupled numerical climate model iLOVECLIM (version 1.1.5) |
title_short |
Modelling water isotopologues ($^1H^2H^{16}O$,$^1H_2$$^{17}O$) in the coupled numerical climate model iLOVECLIM (version 1.1.5) |
title_full |
Modelling water isotopologues ($^1H^2H^{16}O$,$^1H_2$$^{17}O$) in the coupled numerical climate model iLOVECLIM (version 1.1.5) |
title_fullStr |
Modelling water isotopologues ($^1H^2H^{16}O$,$^1H_2$$^{17}O$) in the coupled numerical climate model iLOVECLIM (version 1.1.5) |
title_full_unstemmed |
Modelling water isotopologues ($^1H^2H^{16}O$,$^1H_2$$^{17}O$) in the coupled numerical climate model iLOVECLIM (version 1.1.5) |
title_sort |
modelling water isotopologues ($^1h^2h^{16}o$,$^1h_2$$^{17}o$) in the coupled numerical climate model iloveclim (version 1.1.5) |
publisher |
HAL CCSD |
publishDate |
2024 |
url |
https://hal.science/hal-04505395 https://hal.science/hal-04505395/document https://hal.science/hal-04505395/file/gmd-17-2117-2024.pdf https://doi.org/10.5194/gmd-17-2117-2024 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
ISSN: 1991-9603 EISSN: 1991-959X Geoscientific Model Development https://hal.science/hal-04505395 Geoscientific Model Development, 2024, 17 (5), pp.2117-2139. ⟨10.5194/gmd-17-2117-2024⟩ |
op_relation |
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op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/gmd-17-2117-2024 |
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Geoscientific Model Development |
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ftinsu:oai:HAL:hal-04505395v1 2024-04-21T07:46:47+00:00 Modelling water isotopologues ($^1H^2H^{16}O$,$^1H_2$$^{17}O$) in the coupled numerical climate model iLOVECLIM (version 1.1.5) Extier, Thomas Caley, Thibaut Roche, Didier, M Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) 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) Modélisation du climat (CLIM) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-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)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Vrije Universiteit Amsterdam Amsterdam (VU) ANR-21-CE01-0001,HYDRATE,évaluer le cycle HYDrologique aux basses latitudes dans les modèles numéRiques de climAt en conTraignant les changements passés de salinitE de l'océan.(2021) 2024-03-13 https://hal.science/hal-04505395 https://hal.science/hal-04505395/document https://hal.science/hal-04505395/file/gmd-17-2117-2024.pdf https://doi.org/10.5194/gmd-17-2117-2024 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/gmd-17-2117-2024 hal-04505395 https://hal.science/hal-04505395 https://hal.science/hal-04505395/document https://hal.science/hal-04505395/file/gmd-17-2117-2024.pdf doi:10.5194/gmd-17-2117-2024 info:eu-repo/semantics/OpenAccess ISSN: 1991-9603 EISSN: 1991-959X Geoscientific Model Development https://hal.science/hal-04505395 Geoscientific Model Development, 2024, 17 (5), pp.2117-2139. ⟨10.5194/gmd-17-2117-2024⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2024 ftinsu https://doi.org/10.5194/gmd-17-2117-2024 2024-04-05T00:26:21Z International audience Stable water isotopes are used to infer changes in the hydrological cycle for different climate periods and various climatic archives. Following previous developments of δ18O in the coupled climate model of intermediate complexity, iLOVECLIM, we present here the implementation of the 1H2H16O and 1H217O water isotopes in the different components of this model and calculate the associated secondary markers deuterium excess (d-excess) and oxygen-17 excess (17O-excess) in the atmosphere and ocean. So far, the latter has only been modelled by the atmospheric model LMDZ4. Results of a 5000-year equilibrium simulation under preindustrial conditions are analysed and compared to observations and several isotope-enabled models for the atmosphere and ocean components. In the atmospheric component, the model correctly reproduces the first-order global distribution of the δ2H and d-excess as observed in the data (R=0.56 for δ2H and 0.36 for d-excess), even if local differences are observed. The model–data correlation is within the range of other water-isotope-enabled general circulation models. The main isotopic effects and the latitudinal gradient are properly modelled, similarly to previous water-isotope-enabled general circulation model simulations, despite a simplified atmospheric component in iLOVECLIM. One exception is observed in Antarctica where the model does not correctly estimate the water isotope composition, a consequence of the non-conservative behaviour of the advection scheme at a very low moisture content. The modelled 17O-excess presents a too-important dispersion of the values in comparison to the observations and is not correctly reproduced in the model, mainly because of the complex processes involved in the 17O-excess isotopic value. For the ocean, the model simulates an adequate isotopic ratio in comparison to the observations, except for local areas such as the surface of the Arabian Sea, a part of the Arctic and the western equatorial Indian Ocean. Data–model evaluation also ... Article in Journal/Newspaper Antarc* Antarctica Institut national des sciences de l'Univers: HAL-INSU Geoscientific Model Development 17 5 2117 2139 |