Drivers of diurnal and seasonal dynamics of triple oxygen isotopes in atmospheric water vapor and precipitation at a Mediterranean forest site

Voigt, Claudia; Vallet-Coulomb, Christine; Piel, Clément; Sauze, Joana; Reiter, Ilja M.; Orts, Jean-Philippe; Chalié, Françoise; Cassou, Christophe; Xueref-Remy, Irène; Alexandre, Anne

doi:10.5194/acp-26-9295-2026

Articles | Volume 26, issue 13

https://doi.org/10.5194/acp-26-9295-2026

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

https://doi.org/10.5194/acp-26-9295-2026

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

Articles | Volume 26, issue 13

Research article

|

02 Jul 2026

Research article |

| 02 Jul 2026

Drivers of diurnal and seasonal dynamics of triple oxygen isotopes in atmospheric water vapor and precipitation at a Mediterranean forest site

Claudia Voigt, Christine Vallet-Coulomb, Clément Piel, Joana Sauze, Ilja M. Reiter, Jean-Philippe Orts, Françoise Chalié, Christophe Cassou, Irène Xueref-Remy, and Anne Alexandre

Data sets

Triple oxygen and hydrogen isotope data of atmospheric water vapor and precipitation in 2021 at the AnaEE platform O3HP in the French Mediterranean Claudia Voigt https://doi.org/10.5281/zenodo.20639179

Model code and software

Monte Carlo simulation to determine the precision of calibrated isotope data of atmospheric water vapor Claudia Voigt https://doi.org/10.5281/zenodo.19854015

Quantitative moisture source analysis for O3HP 2021 Claudia Voigt https://doi.org/10.5281/zenodo.19855037

Short summary

Triple oxygen isotopes (¹⁷O-excess) are an upcoming tool in hydrological studies. We present the first one-year high-resolution record of ¹⁷O-excess in atmospheric water vapor from a Mediterranean forest site. The dataset provides insights into the processes driving variability of ¹⁷O-excess in atmospheric water vapor and precipitation across seasonal, diurnal, and event scales. These findings support model validation efforts and enhance the interpretation of paleoclimate archives.