Sunlight-driven nitrate loss records Antarctic surface mass balance
International audience Abstract 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 fraction...
Published in: | Nature Communications |
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Format: | Article in Journal/Newspaper |
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Online Access: | https://hal.science/hal-03877291 https://hal.science/hal-03877291/document https://hal.science/hal-03877291/file/Akers-2022-Sunlight-driven-nitrate-loss-record.pdf https://doi.org/10.1038/s41467-022-31855-7 |
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ftuniversailles:oai:HAL:hal-03877291v1 2024-05-12T07:55:04+00:00 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 Université Grenoble Alpes (UGA) 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)) ANR-16-CE01-0011,EAIIST,Projet International d'exploration de la calotte polaire de l'Antarctique de l'Est(2016) 2022-07-25 https://hal.science/hal-03877291 https://hal.science/hal-03877291/document https://hal.science/hal-03877291/file/Akers-2022-Sunlight-driven-nitrate-loss-record.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-03877291 https://hal.science/hal-03877291 https://hal.science/hal-03877291/document https://hal.science/hal-03877291/file/Akers-2022-Sunlight-driven-nitrate-loss-record.pdf doi:10.1038/s41467-022-31855-7 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.science/hal-03877291 Nature Communications, 2022, 13 (1), pp.4274. ⟨10.1038/s41467-022-31855-7⟩ [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2022 ftuniversailles https://doi.org/10.1038/s41467-022-31855-7 2024-04-18T00:22:03Z International audience Abstract 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 under-sampled 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 Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ Antarctic East Antarctica Nature Communications 13 1 |
institution |
Open Polar |
collection |
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
op_collection_id |
ftuniversailles |
language |
English |
topic |
[SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
[SDE.MCG]Environmental Sciences/Global Changes 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 |
[SDE.MCG]Environmental Sciences/Global Changes |
description |
International audience Abstract 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 under-sampled 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 |
Université Grenoble Alpes (UGA) 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)) ANR-16-CE01-0011,EAIIST,Projet International d'exploration de la calotte polaire de l'Antarctique de l'Est(2016) |
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.science/hal-03877291 https://hal.science/hal-03877291/document https://hal.science/hal-03877291/file/Akers-2022-Sunlight-driven-nitrate-loss-record.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.science/hal-03877291 Nature Communications, 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-03877291 https://hal.science/hal-03877291 https://hal.science/hal-03877291/document https://hal.science/hal-03877291/file/Akers-2022-Sunlight-driven-nitrate-loss-record.pdf doi:10.1038/s41467-022-31855-7 |
op_rights |
http://creativecommons.org/licenses/by/ 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_ |
1798855255865163776 |