Atmospheric influence on the deuterium excess signal in polar firn: implications for ice-core interpretation
International audience The seasonal deuterium excess signal of fresh snow samples from Neumayer station, coastal Dronning Maud Land, Antarctica, was studied to investigate the relationship between deuterium excess and precipitation origin. An isotope model was combined with a trajectory model to det...
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Online Access: | https://hal.archives-ouvertes.fr/hal-03103316 https://hal.archives-ouvertes.fr/hal-03103316/document https://hal.archives-ouvertes.fr/hal-03103316/file/fichier6.pdf https://doi.org/10.3189/002214308784408991 |
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ftccsdartic:oai:HAL:hal-03103316v1 2023-05-15T13:49:23+02:00 Atmospheric influence on the deuterium excess signal in polar firn: implications for ice-core interpretation Schlosser, Elisabeth Oerter, Hans Masson-Delmotte, Valerie Reijmer, Carleen Leopold Franzens Universität Innsbruck - University of Innsbruck Alfred Wegener Institute for Polar and Marine Research (AWI) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-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)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Institute for Marine and Atmospheric Research Utrecht (IMAU) Utrecht University Utrecht 2008 https://hal.archives-ouvertes.fr/hal-03103316 https://hal.archives-ouvertes.fr/hal-03103316/document https://hal.archives-ouvertes.fr/hal-03103316/file/fichier6.pdf https://doi.org/10.3189/002214308784408991 en eng HAL CCSD International Glaciological Society info:eu-repo/semantics/altIdentifier/doi/10.3189/002214308784408991 hal-03103316 https://hal.archives-ouvertes.fr/hal-03103316 https://hal.archives-ouvertes.fr/hal-03103316/document https://hal.archives-ouvertes.fr/hal-03103316/file/fichier6.pdf doi:10.3189/002214308784408991 info:eu-repo/semantics/OpenAccess ISSN: 0022-1430 Journal of Glaciology https://hal.archives-ouvertes.fr/hal-03103316 Journal of Glaciology, International Glaciological Society, 2008, 54 (184), pp.117-124. ⟨10.3189/002214308784408991⟩ [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 2008 ftccsdartic https://doi.org/10.3189/002214308784408991 2021-12-19T00:35:02Z International audience The seasonal deuterium excess signal of fresh snow samples from Neumayer station, coastal Dronning Maud Land, Antarctica, was studied to investigate the relationship between deuterium excess and precipitation origin. An isotope model was combined with a trajectory model to determine the relative influence of different moisture sources on the mean annual course of the deuterium excess, focusing on the phase lag between d d 18 O and excess d. Whereas the annual course of d 18 O always shows an austral summer maximum, which clearly depends on local temperature and the annual course of moisture source-area parameters, the deuterium excess of the fresh snow samples shows maximum values already in spring. There can be many different reasons for the time lag between d 18 O and deuterium excess in an ice core, including post-depositional processes and changes in the moisture source of precipitation. The use of fresh snow samples enabled us to exclude post-depositional processes and study solely the influence of precipitation origin. Changes in the moisture source connected to systematic changes in the general atmospheric circulation can have a strong influence on the phase lag between deuterium excess and d 18 O, which has to be taken into account for climatic interpretation of stable-isotope profiles from ice cores. Article in Journal/Newspaper Antarc* Antarctica Dronning Maud Land ice core Journal of Glaciology Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Austral Dronning Maud Land Neumayer Neumayer Station Journal of Glaciology 54 184 117 124 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
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 Schlosser, Elisabeth Oerter, Hans Masson-Delmotte, Valerie Reijmer, Carleen Atmospheric influence on the deuterium excess signal in polar firn: implications for ice-core interpretation |
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 seasonal deuterium excess signal of fresh snow samples from Neumayer station, coastal Dronning Maud Land, Antarctica, was studied to investigate the relationship between deuterium excess and precipitation origin. An isotope model was combined with a trajectory model to determine the relative influence of different moisture sources on the mean annual course of the deuterium excess, focusing on the phase lag between d d 18 O and excess d. Whereas the annual course of d 18 O always shows an austral summer maximum, which clearly depends on local temperature and the annual course of moisture source-area parameters, the deuterium excess of the fresh snow samples shows maximum values already in spring. There can be many different reasons for the time lag between d 18 O and deuterium excess in an ice core, including post-depositional processes and changes in the moisture source of precipitation. The use of fresh snow samples enabled us to exclude post-depositional processes and study solely the influence of precipitation origin. Changes in the moisture source connected to systematic changes in the general atmospheric circulation can have a strong influence on the phase lag between deuterium excess and d 18 O, which has to be taken into account for climatic interpretation of stable-isotope profiles from ice cores. |
author2 |
Leopold Franzens Universität Innsbruck - University of Innsbruck Alfred Wegener Institute for Polar and Marine Research (AWI) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-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)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Institute for Marine and Atmospheric Research Utrecht (IMAU) Utrecht University Utrecht |
format |
Article in Journal/Newspaper |
author |
Schlosser, Elisabeth Oerter, Hans Masson-Delmotte, Valerie Reijmer, Carleen |
author_facet |
Schlosser, Elisabeth Oerter, Hans Masson-Delmotte, Valerie Reijmer, Carleen |
author_sort |
Schlosser, Elisabeth |
title |
Atmospheric influence on the deuterium excess signal in polar firn: implications for ice-core interpretation |
title_short |
Atmospheric influence on the deuterium excess signal in polar firn: implications for ice-core interpretation |
title_full |
Atmospheric influence on the deuterium excess signal in polar firn: implications for ice-core interpretation |
title_fullStr |
Atmospheric influence on the deuterium excess signal in polar firn: implications for ice-core interpretation |
title_full_unstemmed |
Atmospheric influence on the deuterium excess signal in polar firn: implications for ice-core interpretation |
title_sort |
atmospheric influence on the deuterium excess signal in polar firn: implications for ice-core interpretation |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.archives-ouvertes.fr/hal-03103316 https://hal.archives-ouvertes.fr/hal-03103316/document https://hal.archives-ouvertes.fr/hal-03103316/file/fichier6.pdf https://doi.org/10.3189/002214308784408991 |
geographic |
Austral Dronning Maud Land Neumayer Neumayer Station |
geographic_facet |
Austral Dronning Maud Land Neumayer Neumayer Station |
genre |
Antarc* Antarctica Dronning Maud Land ice core Journal of Glaciology |
genre_facet |
Antarc* Antarctica Dronning Maud Land ice core Journal of Glaciology |
op_source |
ISSN: 0022-1430 Journal of Glaciology https://hal.archives-ouvertes.fr/hal-03103316 Journal of Glaciology, International Glaciological Society, 2008, 54 (184), pp.117-124. ⟨10.3189/002214308784408991⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3189/002214308784408991 hal-03103316 https://hal.archives-ouvertes.fr/hal-03103316 https://hal.archives-ouvertes.fr/hal-03103316/document https://hal.archives-ouvertes.fr/hal-03103316/file/fichier6.pdf doi:10.3189/002214308784408991 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3189/002214308784408991 |
container_title |
Journal of Glaciology |
container_volume |
54 |
container_issue |
184 |
container_start_page |
117 |
op_container_end_page |
124 |
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1766251289617891328 |