Articles | Volume 17, issue 5
https://doi.org/10.5194/essd-17-2135-2025
https://doi.org/10.5194/essd-17-2135-2025
Data description paper
 | 
21 May 2025
Data description paper |  | 21 May 2025

Global Stable Isotope Dataset for Surface Water

Rui Li, Guofeng Zhu, Longhu Chen, Xiaoyu Qi, Siyu Lu, Gaojia Meng, Yuhao Wang, Wenmin Li, Zhijie Zheng, Jiangwei Yang, and Yani Gun

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Latest update: 04 Oct 2025
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Short summary
The study of hydrogen and oxygen stable isotopes in surface water is vital for understanding the global water cycle and its response to climate change. Analysing data from 22 389 global sampling stations over 67 years, we uncover spatial and temporal variations in isotopes, showing depletion from the Equator to the poles and from coastal to inland areas. These variations, influenced by geographic, topographic and meteorological factors, reveal the water cycle's heterogeneity.
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