Air mass origin and local impacts on Antarctic snow isotopic composition: an observation and modelling study

Petteni, Agnese; Casado, Mathieu; Leroy-Dos Santos, Christophe; Landais, Amaelle; Dutrievoz, Niels; Agosta, Cécile; Akers, Pete D.; Savarino, Joel; Spolaor, Andrea; Frezzotti, Massimo; Stenni, Barbara

doi:10.5194/tc-20-3581-2026

Articles | Volume 20, issue 6

https://doi.org/10.5194/tc-20-3581-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-20-3581-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 6

Research article

|

23 Jun 2026

Research article |

| 23 Jun 2026

Air mass origin and local impacts on Antarctic snow isotopic composition: an observation and modelling study

Agnese Petteni, Mathieu Casado, Christophe Leroy-Dos Santos, Amaelle Landais, Niels Dutrievoz, Cécile Agosta, Pete D. Akers, Joel Savarino, Andrea Spolaor, Massimo Frezzotti, and Barbara Stenni

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Final revised paper (published on 23 Jun 2026)
Preprint (discussion started on 28 Aug 2025)

Interactive discussion

Status: closed

RC1:
'Comment on egusphere-2025-3188', Anonymous Referee #1, 18 Sep 2025

The comment was uploaded in the form of a supplement: https://egusphere.copernicus.org/preprints/2025/egusphere-2025-3188/egusphere-2025-3188-RC1-supplement.pdf

Citation: https://doi.org/10.5194/egusphere-2025-3188-RC1
- AC1: 'Reply on RC1', Agnese Petteni, 22 Jan 2026
  
  We thank the reviewer for their comments, which were carefully addressed and permitted us to substantially improve the manuscript.
  
  Citation: https://doi.org/10.5194/egusphere-2025-3188-AC1
RC2:
'Comment on egusphere-2025-3188', Anonymous Referee #2, 07 Nov 2025

The comment was uploaded in the form of a supplement: https://egusphere.copernicus.org/preprints/2025/egusphere-2025-3188/egusphere-2025-3188-RC2-supplement.pdf

Citation: https://doi.org/10.5194/egusphere-2025-3188-RC2
- AC2: 'Reply on RC2', Agnese Petteni, 22 Jan 2026
  
  We thank the reviewer for their comments, which were carefully addressed and permitted us to substantially improve the manuscript.
  
  Citation: https://doi.org/10.5194/egusphere-2025-3188-AC2

Peer review completion

AR – Author's response | RR – Referee report | ED – Editor decision | EF – Editorial file upload

ED: Publish subject to revisions (further review by editor and referees) (25 Feb 2026) by Ruth Mottram

AR by Agnese Petteni on behalf of the Authors (02 Mar 2026) Author's response Author's tracked changes Manuscript

ED: Referee Nomination & Report Request started (14 Apr 2026) by Ruth Mottram

RR by Anonymous Referee #2 (25 Apr 2026)

ED: Publish subject to minor revisions (review by editor) (04 May 2026) by Ruth Mottram

AR by Agnese Petteni on behalf of the Authors (05 May 2026) Author's response Author's tracked changes Manuscript

ED: Publish as is (26 May 2026) by Ruth Mottram

AR by Agnese Petteni on behalf of the Authors (05 Jun 2026) Manuscript

Short summary

We investigated the isotopic composition of surface snow in a previously unexplored region of East Antarctica to understand how differences in air mass origin influence its variability. By comparing observations with model data, we validated the model and quantified the impact of post-depositional processes at the snow–atmosphere interface. Our results offer valuable insights for reconstructing past temperatures from ice cores.

Air mass origin and local impacts on Antarctic snow isotopic composition: an observation and modelling study

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Interactive discussion

Peer review completion

Suggestions for revision or reasons for rejection