Assessment of continuous flow analysis (CFA) for high-precision profiles of water isotopes in snow cores

Dallmayr, Rémi; Meyer, Hannah; Gkinis, Vasileios; Laepple, Thomas; Behrens, Melanie; Wilhelms, Frank; Hörhold, Maria

doi:https://doi.org/10.5194/tc-19-1067-2025

Articles | Volume 19, issue 3

https://doi.org/10.5194/tc-19-1067-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-19-1067-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 3

Research article

|

07 Mar 2025

Research article |

| 07 Mar 2025

Assessment of continuous flow analysis (CFA) for high-precision profiles of water isotopes in snow cores

Rémi Dallmayr, Hannah Meyer, Vasileios Gkinis, Thomas Laepple, Melanie Behrens, Frank Wilhelms, and Maria Hörhold

Data sets

Discrete profiles of stable water isotopes (d18O, dD) measured in 2015 and sampled along a snow trench (T15-1) in the 2014/15 field season at Kohnen Station, Dronning Maud Land, Antarctica Hanno Meyer et al. https://doi.org/10.1594/PANGAEA.939208

Discrete profiles of stable water isotopes (d18O, dD) measured in 2019 and sampled along a snow trench (T15-1) in the 2014/15 field season at Kohnen Station, Dronning Maud Land, Antarctica Melanie Behrens et al. https://doi.org/10.1594/PANGAEA.969069

High-Resolution profiles of stable water isotopes (d18O, dD) analyzed in 2019 and sampled along a snow trench (T15-1) in the 2014/15 field season at Kohnen Station, Dronning Maud Land, Antarctica Remi Dallmayr et al. https://doi.org/10.1594/PANGAEA.969073

Model code and software

Algorithms to characterize isotopic diffusion (1.0) R. Dallmayr et al. https://doi.org/10.5281/zenodo.14965540

Short summary

Recent studies showed that a large number of independent vertical profiles allow for inferring a common local climate signal from the stacked stable water isotope record. Through investigating instrumental limitation and the effect of percolation of such porous samples, this study assesses the continuous flow analysis (CFA) technique in order to analyze the significant number of snow surface profiles within a reasonable time and with high quality.