On the relationship between δ O 2 ∕N 2 variability and ice sheet surface conditions in Antarctica
International audience While the processes controlling pore closure are broadly understood, the physical mechanisms driving the associated elemental fractionation remains ambiguous. Previous studies have shown that the pore closure process leads to a depletion in small-sized molecules (e.g. H 2 , O...
Published in: | The Cryosphere |
---|---|
Main Authors: | , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2024
|
Subjects: | |
Online Access: | https://hal.science/hal-04679707 https://hal.science/hal-04679707/document https://hal.science/hal-04679707/file/tc-18-3741-2024.pdf https://doi.org/10.5194/tc-18-3741-2024 |
id |
ftunigrenoble:oai:HAL:hal-04679707v1 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
Université Grenoble Alpes: HAL |
op_collection_id |
ftunigrenoble |
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 Harris Stuart, Romilly Landais, Amaelle Arnaud, Laurent Buizert, Christo Capron, Emilie Dumont, Marie Libois, Quentin Mulvaney, Robert Orsi, Anaïs Picard, Ghislain Prié, Frédéric Severinghaus, Jeffrey Stenni, Barbara Martinerie, Patricia On the relationship between δ O 2 ∕N 2 variability and ice sheet surface conditions in Antarctica |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience While the processes controlling pore closure are broadly understood, the physical mechanisms driving the associated elemental fractionation remains ambiguous. Previous studies have shown that the pore closure process leads to a depletion in small-sized molecules (e.g. H 2 , O 2 , Ar, Ne, He) in ice core bubbles relative to larger-sized molecules like N 2 . This size-dependent fractionation, identified using ice core δ(O 2 /N 2 ) records, exhibits a clear anti-correlation with local summer solstice insolation, making δ(O 2 /N 2 ) a valuable ice core dating tool. Mechanisms controlling this relationship are attributed to the physical properties of deep firn. In this study, we compile δ(O 2 /N 2 ) records from 15 polar ice cores and show a new additional link between δ(O 2 /N 2 ) and local surface temperature and/or accumulation rate. Using the Crocus snowpack model, we perform sensitivity tests to identify the response of near-surface snow properties to changes in insolation intensity, accumulation rate, and air temperature. These tests support a mechanism linked to firn grain size, such that the larger the grain size for a given density, the stronger the pore closure fractionation and, hence, the lower the δ(O 2 /N 2 ) values archived in the ice. Based on both snowpack model outputs and data compilation, our findings suggest that local accumulation rate and temperature should be considered when interpreting δ(O 2 /N 2 ) as a local insolation proxy. |
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) 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)) Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA) College of Earth, Ocean and Atmospheric Sciences Corvallis (CEOAS) Oregon State University (OSU) Institut de Recherche pour le Développement (IRD)-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)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Centre d'Etudes de la Neige (CEN) Centre national de recherches météorologiques (CNRM) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG )-Université Grenoble Alpes (UGA) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) British Antarctic Survey (BAS) Natural Environment Research Council (NERC) Université Joseph Fourier - Grenoble 1 (UJF) University of Sheffield Sheffield Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT) Scripps Institution of Oceanography (SIO - UC San Diego) University of California San Diego (UC San Diego) University of California (UC)-University of California (UC) Department of Environmental Sciences, Informatics and Statistics Venezia University of Ca’ Foscari Venice, Italy ANR-19-MPGA-0001,HOTCLIM,Characterisation & Dynamics of Past Warm Climates(2019) |
format |
Article in Journal/Newspaper |
author |
Harris Stuart, Romilly Landais, Amaelle Arnaud, Laurent Buizert, Christo Capron, Emilie Dumont, Marie Libois, Quentin Mulvaney, Robert Orsi, Anaïs Picard, Ghislain Prié, Frédéric Severinghaus, Jeffrey Stenni, Barbara Martinerie, Patricia |
author_facet |
Harris Stuart, Romilly Landais, Amaelle Arnaud, Laurent Buizert, Christo Capron, Emilie Dumont, Marie Libois, Quentin Mulvaney, Robert Orsi, Anaïs Picard, Ghislain Prié, Frédéric Severinghaus, Jeffrey Stenni, Barbara Martinerie, Patricia |
author_sort |
Harris Stuart, Romilly |
title |
On the relationship between δ O 2 ∕N 2 variability and ice sheet surface conditions in Antarctica |
title_short |
On the relationship between δ O 2 ∕N 2 variability and ice sheet surface conditions in Antarctica |
title_full |
On the relationship between δ O 2 ∕N 2 variability and ice sheet surface conditions in Antarctica |
title_fullStr |
On the relationship between δ O 2 ∕N 2 variability and ice sheet surface conditions in Antarctica |
title_full_unstemmed |
On the relationship between δ O 2 ∕N 2 variability and ice sheet surface conditions in Antarctica |
title_sort |
on the relationship between δ o 2 ∕n 2 variability and ice sheet surface conditions in antarctica |
publisher |
HAL CCSD |
publishDate |
2024 |
url |
https://hal.science/hal-04679707 https://hal.science/hal-04679707/document https://hal.science/hal-04679707/file/tc-18-3741-2024.pdf https://doi.org/10.5194/tc-18-3741-2024 |
genre |
Antarc* Antarctica ice core Ice Sheet The Cryosphere |
genre_facet |
Antarc* Antarctica ice core Ice Sheet The Cryosphere |
op_source |
ISSN: 1994-0424 EISSN: 1994-0416 The Cryosphere https://hal.science/hal-04679707 The Cryosphere, 2024, 18 (8), pp.3741 - 3763. ⟨10.5194/tc-18-3741-2024⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-18-3741-2024 hal-04679707 https://hal.science/hal-04679707 https://hal.science/hal-04679707/document https://hal.science/hal-04679707/file/tc-18-3741-2024.pdf doi:10.5194/tc-18-3741-2024 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/tc-18-3741-2024 |
container_title |
The Cryosphere |
container_volume |
18 |
container_issue |
8 |
container_start_page |
3741 |
op_container_end_page |
3763 |
_version_ |
1810495077205671936 |
spelling |
ftunigrenoble:oai:HAL:hal-04679707v1 2024-09-15T17:46:44+00:00 On the relationship between δ O 2 ∕N 2 variability and ice sheet surface conditions in Antarctica Harris Stuart, Romilly Landais, Amaelle Arnaud, Laurent Buizert, Christo Capron, Emilie Dumont, Marie Libois, Quentin Mulvaney, Robert Orsi, Anaïs Picard, Ghislain Prié, Frédéric Severinghaus, Jeffrey Stenni, Barbara Martinerie, Patricia 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)) Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA) College of Earth, Ocean and Atmospheric Sciences Corvallis (CEOAS) Oregon State University (OSU) Institut de Recherche pour le Développement (IRD)-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)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Centre d'Etudes de la Neige (CEN) Centre national de recherches météorologiques (CNRM) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG )-Université Grenoble Alpes (UGA) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) British Antarctic Survey (BAS) Natural Environment Research Council (NERC) Université Joseph Fourier - Grenoble 1 (UJF) University of Sheffield Sheffield Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT) Scripps Institution of Oceanography (SIO - UC San Diego) University of California San Diego (UC San Diego) University of California (UC)-University of California (UC) Department of Environmental Sciences, Informatics and Statistics Venezia University of Ca’ Foscari Venice, Italy ANR-19-MPGA-0001,HOTCLIM,Characterisation & Dynamics of Past Warm Climates(2019) 2024-08-22 https://hal.science/hal-04679707 https://hal.science/hal-04679707/document https://hal.science/hal-04679707/file/tc-18-3741-2024.pdf https://doi.org/10.5194/tc-18-3741-2024 en eng HAL CCSD Copernicus info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-18-3741-2024 hal-04679707 https://hal.science/hal-04679707 https://hal.science/hal-04679707/document https://hal.science/hal-04679707/file/tc-18-3741-2024.pdf doi:10.5194/tc-18-3741-2024 info:eu-repo/semantics/OpenAccess ISSN: 1994-0424 EISSN: 1994-0416 The Cryosphere https://hal.science/hal-04679707 The Cryosphere, 2024, 18 (8), pp.3741 - 3763. ⟨10.5194/tc-18-3741-2024⟩ [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 2024 ftunigrenoble https://doi.org/10.5194/tc-18-3741-2024 2024-09-03T00:08:21Z International audience While the processes controlling pore closure are broadly understood, the physical mechanisms driving the associated elemental fractionation remains ambiguous. Previous studies have shown that the pore closure process leads to a depletion in small-sized molecules (e.g. H 2 , O 2 , Ar, Ne, He) in ice core bubbles relative to larger-sized molecules like N 2 . This size-dependent fractionation, identified using ice core δ(O 2 /N 2 ) records, exhibits a clear anti-correlation with local summer solstice insolation, making δ(O 2 /N 2 ) a valuable ice core dating tool. Mechanisms controlling this relationship are attributed to the physical properties of deep firn. In this study, we compile δ(O 2 /N 2 ) records from 15 polar ice cores and show a new additional link between δ(O 2 /N 2 ) and local surface temperature and/or accumulation rate. Using the Crocus snowpack model, we perform sensitivity tests to identify the response of near-surface snow properties to changes in insolation intensity, accumulation rate, and air temperature. These tests support a mechanism linked to firn grain size, such that the larger the grain size for a given density, the stronger the pore closure fractionation and, hence, the lower the δ(O 2 /N 2 ) values archived in the ice. Based on both snowpack model outputs and data compilation, our findings suggest that local accumulation rate and temperature should be considered when interpreting δ(O 2 /N 2 ) as a local insolation proxy. Article in Journal/Newspaper Antarc* Antarctica ice core Ice Sheet The Cryosphere Université Grenoble Alpes: HAL The Cryosphere 18 8 3741 3763 |