Sunlight-driven nitrate loss records Antarctic surface mass balance
International audience Standard proxies for reconstructing surface mass balance (SMB) in Antarctic ice cores are often inaccurate or coarsely resolved when applied to more complicated environments away from dome summits. Here, we propose an alternative SMB proxy based on photolytic fractionation of...
Published in: | Nature Communications |
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Online Access: | https://hal.archives-ouvertes.fr/hal-03741003 https://hal.archives-ouvertes.fr/hal-03741003/document https://hal.archives-ouvertes.fr/hal-03741003/file/s41467-022-31855-7.pdf https://doi.org/10.1038/s41467-022-31855-7 |
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ftuniparissaclay:oai:HAL:hal-03741003v1 2023-05-15T13:38:39+02:00 Sunlight-driven nitrate loss records Antarctic surface mass balance Akers, Pete, Savarino, Joël Caillon, Nicolas Servettaz, Aymeric, Le Meur, Emmanuel Magand, Olivier Martins, Jean Agosta, Cécile Crockford, Peter Kobayashi, Kanon Hattori, Shohei Curran, Mark van Ommen, Tas Jong, Lenneke Roberts, Jason Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) 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)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) 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)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-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)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) 2022-07-25 https://hal.archives-ouvertes.fr/hal-03741003 https://hal.archives-ouvertes.fr/hal-03741003/document https://hal.archives-ouvertes.fr/hal-03741003/file/s41467-022-31855-7.pdf https://doi.org/10.1038/s41467-022-31855-7 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-022-31855-7 hal-03741003 https://hal.archives-ouvertes.fr/hal-03741003 https://hal.archives-ouvertes.fr/hal-03741003/document https://hal.archives-ouvertes.fr/hal-03741003/file/s41467-022-31855-7.pdf doi:10.1038/s41467-022-31855-7 info:eu-repo/semantics/OpenAccess ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.archives-ouvertes.fr/hal-03741003 Nature Communications, Nature Publishing Group, 2022, 13 (1), pp.4274. ⟨10.1038/s41467-022-31855-7⟩ [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 2022 ftuniparissaclay https://doi.org/10.1038/s41467-022-31855-7 2022-10-30T11:39:09Z International audience Standard proxies for reconstructing surface mass balance (SMB) in Antarctic ice cores are often inaccurate or coarsely resolved when applied to more complicated environments away from dome summits. Here, we propose an alternative SMB proxy based on photolytic fractionation of nitrogen isotopes in nitrate observed at 114 sites throughout East Antarctica. Applying this proxy approach to nitrate in a shallow core drilled at a moderate SMB site (Aurora Basin North), we reconstruct 700 years of SMB changes that agree well with changes estimated from ice core density and upstream surface topography. For the undersampled transition zones between dome summits and the coast, we show that this proxy can provide past and present SMB values that reflect the immediate local environment and are derived independently from existing techniques. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica ice core Archives ouvertes de Paris-Saclay Antarctic East Antarctica Nature Communications 13 1 |
institution |
Open Polar |
collection |
Archives ouvertes de Paris-Saclay |
op_collection_id |
ftuniparissaclay |
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 Akers, Pete, Savarino, Joël Caillon, Nicolas Servettaz, Aymeric, Le Meur, Emmanuel Magand, Olivier Martins, Jean Agosta, Cécile Crockford, Peter Kobayashi, Kanon Hattori, Shohei Curran, Mark van Ommen, Tas Jong, Lenneke Roberts, Jason Sunlight-driven nitrate loss records Antarctic surface mass balance |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience Standard proxies for reconstructing surface mass balance (SMB) in Antarctic ice cores are often inaccurate or coarsely resolved when applied to more complicated environments away from dome summits. Here, we propose an alternative SMB proxy based on photolytic fractionation of nitrogen isotopes in nitrate observed at 114 sites throughout East Antarctica. Applying this proxy approach to nitrate in a shallow core drilled at a moderate SMB site (Aurora Basin North), we reconstruct 700 years of SMB changes that agree well with changes estimated from ice core density and upstream surface topography. For the undersampled transition zones between dome summits and the coast, we show that this proxy can provide past and present SMB values that reflect the immediate local environment and are derived independently from existing techniques. |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) 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)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) 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)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-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)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Akers, Pete, Savarino, Joël Caillon, Nicolas Servettaz, Aymeric, Le Meur, Emmanuel Magand, Olivier Martins, Jean Agosta, Cécile Crockford, Peter Kobayashi, Kanon Hattori, Shohei Curran, Mark van Ommen, Tas Jong, Lenneke Roberts, Jason |
author_facet |
Akers, Pete, Savarino, Joël Caillon, Nicolas Servettaz, Aymeric, Le Meur, Emmanuel Magand, Olivier Martins, Jean Agosta, Cécile Crockford, Peter Kobayashi, Kanon Hattori, Shohei Curran, Mark van Ommen, Tas Jong, Lenneke Roberts, Jason |
author_sort |
Akers, Pete, |
title |
Sunlight-driven nitrate loss records Antarctic surface mass balance |
title_short |
Sunlight-driven nitrate loss records Antarctic surface mass balance |
title_full |
Sunlight-driven nitrate loss records Antarctic surface mass balance |
title_fullStr |
Sunlight-driven nitrate loss records Antarctic surface mass balance |
title_full_unstemmed |
Sunlight-driven nitrate loss records Antarctic surface mass balance |
title_sort |
sunlight-driven nitrate loss records antarctic surface mass balance |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.archives-ouvertes.fr/hal-03741003 https://hal.archives-ouvertes.fr/hal-03741003/document https://hal.archives-ouvertes.fr/hal-03741003/file/s41467-022-31855-7.pdf https://doi.org/10.1038/s41467-022-31855-7 |
geographic |
Antarctic East Antarctica |
geographic_facet |
Antarctic East Antarctica |
genre |
Antarc* Antarctic Antarctica East Antarctica ice core |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica ice core |
op_source |
ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.archives-ouvertes.fr/hal-03741003 Nature Communications, Nature Publishing Group, 2022, 13 (1), pp.4274. ⟨10.1038/s41467-022-31855-7⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-022-31855-7 hal-03741003 https://hal.archives-ouvertes.fr/hal-03741003 https://hal.archives-ouvertes.fr/hal-03741003/document https://hal.archives-ouvertes.fr/hal-03741003/file/s41467-022-31855-7.pdf doi:10.1038/s41467-022-31855-7 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1038/s41467-022-31855-7 |
container_title |
Nature Communications |
container_volume |
13 |
container_issue |
1 |
_version_ |
1766109201456693248 |