Articles | Volume 18, issue 12
https://doi.org/10.5194/amt-18-2701-2025
https://doi.org/10.5194/amt-18-2701-2025
Research article
 | 
25 Jun 2025
Research article |  | 25 Jun 2025

Triple oxygen isotope composition of CO2 in the upper troposphere and stratosphere

Getachew Agmuas Adnew, Gerbrand Koren, Neha Mehendale, Sergey Gromov, Maarten Krol, and Thomas Röckmann

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Latest update: 16 Jul 2025
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Short summary
This study presents high-precision measurements of ∆′17O(CO2). Key findings include the extension of the N2O–∆′17O correlation to the upper troposphere and the identification of significant differences in the N2O–∆′17O slope in StratoClim samples. Additionally, the ∆′17O measurements are used to estimate global stratospheric production and surface removal of ∆′17O, providing an independent estimate of global vegetation CO2 exchange.
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