Validity of the isotopic thermometer in central Antarctica: Limited impact of glacial precipitation seasonality and moisture origin
International audience The classical interpretation of water stable isotopes (deuterium or oxygen 18) retrieved from ice cores into past local temperature relies on the use of the spatial isotope/temperature slope as a surrogate of the temporal slope. Whereas this assumption has been challenged by i...
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ftuniversailles:oai:HAL:hal-03103416v1 2024-04-28T08:02:48+00:00 Validity of the isotopic thermometer in central Antarctica: Limited impact of glacial precipitation seasonality and moisture origin Delaygue, Gilles Jouzel, Jean Masson, Valérie Koster, Randal Bard, Edouard Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) 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) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) 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)) NASA Goddard Space Flight Center (GSFC) 2000-09-01 https://hal.science/hal-03103416 https://hal.science/hal-03103416/document https://hal.science/hal-03103416/file/2000GL011530.pdf https://doi.org/10.1029/2000GL011530 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2000GL011530 hal-03103416 https://hal.science/hal-03103416 https://hal.science/hal-03103416/document https://hal.science/hal-03103416/file/2000GL011530.pdf doi:10.1029/2000GL011530 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-03103416 Geophysical Research Letters, 2000, 27 (17), pp.2677-2680. ⟨10.1029/2000GL011530⟩ [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 2000 ftuniversailles https://doi.org/10.1029/2000GL011530 2024-04-04T17:35:12Z International audience The classical interpretation of water stable isotopes (deuterium or oxygen 18) retrieved from ice cores into past local temperature relies on the use of the spatial isotope/temperature slope as a surrogate of the temporal slope. Whereas this assumption has been challenged by independent methods in central Greenland, it is still considered as valid in central Antarctica. We use an atmospheric General Circulation Model (GCM) to study two parameters highlighted by previous studies as being among the most important with respect to this assumption. We show that in the GCM, between present-day and Last Glacial Maximum, the change in precipitation seasonality and the cooling of the moisture sources have limited and opposite effects on the isotopic record of the Antarctic local temperature. This conclusion strengthens the validity of the classical interpretation of isotope records in central Antarctica. Article in Journal/Newspaper Antarc* Antarctic Antarctica Greenland Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ Geophysical Research Letters 27 17 2677 2680 |
institution |
Open Polar |
collection |
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
op_collection_id |
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 Delaygue, Gilles Jouzel, Jean Masson, Valérie Koster, Randal Bard, Edouard Validity of the isotopic thermometer in central Antarctica: Limited impact of glacial precipitation seasonality and moisture origin |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience The classical interpretation of water stable isotopes (deuterium or oxygen 18) retrieved from ice cores into past local temperature relies on the use of the spatial isotope/temperature slope as a surrogate of the temporal slope. Whereas this assumption has been challenged by independent methods in central Greenland, it is still considered as valid in central Antarctica. We use an atmospheric General Circulation Model (GCM) to study two parameters highlighted by previous studies as being among the most important with respect to this assumption. We show that in the GCM, between present-day and Last Glacial Maximum, the change in precipitation seasonality and the cooling of the moisture sources have limited and opposite effects on the isotopic record of the Antarctic local temperature. This conclusion strengthens the validity of the classical interpretation of isotope records in central Antarctica. |
author2 |
Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) 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) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) 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)) NASA Goddard Space Flight Center (GSFC) |
format |
Article in Journal/Newspaper |
author |
Delaygue, Gilles Jouzel, Jean Masson, Valérie Koster, Randal Bard, Edouard |
author_facet |
Delaygue, Gilles Jouzel, Jean Masson, Valérie Koster, Randal Bard, Edouard |
author_sort |
Delaygue, Gilles |
title |
Validity of the isotopic thermometer in central Antarctica: Limited impact of glacial precipitation seasonality and moisture origin |
title_short |
Validity of the isotopic thermometer in central Antarctica: Limited impact of glacial precipitation seasonality and moisture origin |
title_full |
Validity of the isotopic thermometer in central Antarctica: Limited impact of glacial precipitation seasonality and moisture origin |
title_fullStr |
Validity of the isotopic thermometer in central Antarctica: Limited impact of glacial precipitation seasonality and moisture origin |
title_full_unstemmed |
Validity of the isotopic thermometer in central Antarctica: Limited impact of glacial precipitation seasonality and moisture origin |
title_sort |
validity of the isotopic thermometer in central antarctica: limited impact of glacial precipitation seasonality and moisture origin |
publisher |
HAL CCSD |
publishDate |
2000 |
url |
https://hal.science/hal-03103416 https://hal.science/hal-03103416/document https://hal.science/hal-03103416/file/2000GL011530.pdf https://doi.org/10.1029/2000GL011530 |
genre |
Antarc* Antarctic Antarctica Greenland |
genre_facet |
Antarc* Antarctic Antarctica Greenland |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-03103416 Geophysical Research Letters, 2000, 27 (17), pp.2677-2680. ⟨10.1029/2000GL011530⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2000GL011530 hal-03103416 https://hal.science/hal-03103416 https://hal.science/hal-03103416/document https://hal.science/hal-03103416/file/2000GL011530.pdf doi:10.1029/2000GL011530 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2000GL011530 |
container_title |
Geophysical Research Letters |
container_volume |
27 |
container_issue |
17 |
container_start_page |
2677 |
op_container_end_page |
2680 |
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1797574054244253696 |