Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 18, issue 23
Articles | Volume 18, issue 23
https://doi.org/10.5194/amt-18-7349-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-18-7349-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 23
Research article
 | 
04 Dec 2025
Research article |  | 04 Dec 2025

Correcting for water vapor diffusion in air bag samples for isotope composition analysis: case study with drone-collected samples

Di Wang, Camille Risi, Lide Tian, Di Yang, Gabriel J. Bowen, Siteng Fan, Yang Su, Hongxi Pang, and Laurent Z. X. Li

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Short summary
We developed and validated a model to correct for water vapor diffusion in sampling bags, enabling reconstruction of the original isotopic composition. We quantified all major sources of error and their uncertainties and introduced permeability experiments as a necessary step before field sampling. This study improves the accuracy, reliability, and standardization of atmospheric isotope observations using air bags.
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