Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 19, issue 14
Articles | Volume 19, issue 14
https://doi.org/10.5194/amt-19-4743-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-19-4743-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 14
Research article
 | 
24 Jul 2026
Research article |  | 24 Jul 2026

Combined and autonomous online measurement of water isotopes in snowflakes and atmospheric water vapor in East Antarctica

Thomas Lauwers, Elise Fourré, Niels Dutrievoz, Cécile Agosta, Olivier Jossoud, Bénédicte Minster, Frédéric Prié, Olivier Cattani, Valérie Masson-Delmotte, Mathieu Casado, Christophe Genthon, and Amaëlle Landais

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Short summary
This study presents a new method to measure the isotopic composition of snowfall and atmospheric water vapor in Antarctica. With a single laser spectrometer, it enables continuous, high frequency observations without human intervention. Tests in East Antarctica show a very good agreement with conventionnal snow sampling. This new sampling method opens new opportunities to better understand snowfall formation, improve climate models, and refine the interpretation of ice core climate records.
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