δ18O water isotope in the iLOVECLIM model (version 1.0) – Part 1: Implementation and verification
International audience A new 18O stable water isotope scheme is developed for three components of the iLOVECLIM coupled climate model: atmospheric, oceanic and land surface. The equations required to reproduce the fractionation of stable water isotopes in the simplified atmospheric model ECBilt are...
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ftuniversailles:oai:HAL:hal-03209757v1 2024-04-28T07:58:08+00:00 δ18O water isotope in the iLOVECLIM model (version 1.0) – Part 1: Implementation and verification Roche, Didier M. 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)) 2013 https://hal.science/hal-03209757 https://hal.science/hal-03209757/document https://hal.science/hal-03209757/file/gmd-6-1481-2013.pdf https://doi.org/10.5194/gmd-6-1481-2013 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/gmd-6-1481-2013 hal-03209757 https://hal.science/hal-03209757 https://hal.science/hal-03209757/document https://hal.science/hal-03209757/file/gmd-6-1481-2013.pdf doi:10.5194/gmd-6-1481-2013 info:eu-repo/semantics/OpenAccess ISSN: 1991-9603 EISSN: 1991-959X Geoscientific Model Development https://hal.science/hal-03209757 Geoscientific Model Development, 2013, 6 (5), pp.1481-1491. ⟨10.5194/gmd-6-1481-2013⟩ [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 2013 ftuniversailles https://doi.org/10.5194/gmd-6-1481-2013 2024-04-04T17:33:38Z International audience A new 18O stable water isotope scheme is developed for three components of the iLOVECLIM coupled climate model: atmospheric, oceanic and land surface. The equations required to reproduce the fractionation of stable water isotopes in the simplified atmospheric model ECBilt are developed consistently with the moisture scheme. Simplifications in the processes are made to account for the simplified vertical structure including only one moist layer. Implementation of these equations together with a passive tracer scheme for the ocean and a equilibrium fractionation scheme for the land surface leads to the closure of the (isotopic-) water budget in our climate system. Following the implementation, verification of the existence of usual δ18O to climatic relationships are performed for the Rayleigh distillation, the Dansgaard relationship and the δ18O –salinity relationship. Advantages and caveats of the approach taken are outlined. The isotopic fields simulated are shown to reproduce most expected oxygen-18–climate relationships with the notable exception of the isotopic composition in Antarctica. Article in Journal/Newspaper Antarc* Antarctica Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ Geoscientific Model Development 6 5 1481 1491 |
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Open Polar |
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Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
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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 Roche, Didier M. δ18O water isotope in the iLOVECLIM model (version 1.0) – Part 1: Implementation and verification |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience A new 18O stable water isotope scheme is developed for three components of the iLOVECLIM coupled climate model: atmospheric, oceanic and land surface. The equations required to reproduce the fractionation of stable water isotopes in the simplified atmospheric model ECBilt are developed consistently with the moisture scheme. Simplifications in the processes are made to account for the simplified vertical structure including only one moist layer. Implementation of these equations together with a passive tracer scheme for the ocean and a equilibrium fractionation scheme for the land surface leads to the closure of the (isotopic-) water budget in our climate system. Following the implementation, verification of the existence of usual δ18O to climatic relationships are performed for the Rayleigh distillation, the Dansgaard relationship and the δ18O –salinity relationship. Advantages and caveats of the approach taken are outlined. The isotopic fields simulated are shown to reproduce most expected oxygen-18–climate relationships with the notable exception of the isotopic composition in Antarctica. |
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) 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)) |
format |
Article in Journal/Newspaper |
author |
Roche, Didier M. |
author_facet |
Roche, Didier M. |
author_sort |
Roche, Didier M. |
title |
δ18O water isotope in the iLOVECLIM model (version 1.0) – Part 1: Implementation and verification |
title_short |
δ18O water isotope in the iLOVECLIM model (version 1.0) – Part 1: Implementation and verification |
title_full |
δ18O water isotope in the iLOVECLIM model (version 1.0) – Part 1: Implementation and verification |
title_fullStr |
δ18O water isotope in the iLOVECLIM model (version 1.0) – Part 1: Implementation and verification |
title_full_unstemmed |
δ18O water isotope in the iLOVECLIM model (version 1.0) – Part 1: Implementation and verification |
title_sort |
δ18o water isotope in the iloveclim model (version 1.0) – part 1: implementation and verification |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.science/hal-03209757 https://hal.science/hal-03209757/document https://hal.science/hal-03209757/file/gmd-6-1481-2013.pdf https://doi.org/10.5194/gmd-6-1481-2013 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
ISSN: 1991-9603 EISSN: 1991-959X Geoscientific Model Development https://hal.science/hal-03209757 Geoscientific Model Development, 2013, 6 (5), pp.1481-1491. ⟨10.5194/gmd-6-1481-2013⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/gmd-6-1481-2013 hal-03209757 https://hal.science/hal-03209757 https://hal.science/hal-03209757/document https://hal.science/hal-03209757/file/gmd-6-1481-2013.pdf doi:10.5194/gmd-6-1481-2013 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/gmd-6-1481-2013 |
container_title |
Geoscientific Model Development |
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5 |
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