Articles | Volume 24, issue 9
https://doi.org/10.5194/hess-24-4491-2020
https://doi.org/10.5194/hess-24-4491-2020
Research article
 | 
16 Sep 2020
Research article |  | 16 Sep 2020

Novel Keeling-plot-based methods to estimate the isotopic composition of ambient water vapor

Yusen Yuan, Taisheng Du, Honglang Wang, and Lixin Wang

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Latest update: 14 Jun 2024
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Short summary
The isotopic composition of ambient water vapor is an important source of atmospheric water vapor and has not been able to be estimated to date using the Keeling plot approach. Here we proposed two new methods to estimate the isotopic composition of ambient water vapor: one using the intersection point method and another relying on the intermediate value theorem.