Earth System Science Data
Earth System Science Data
Earth System Science Data
Articles | Volume 18, issue 3
Articles | Volume 18, issue 3
https://doi.org/10.5194/essd-18-1921-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-18-1921-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 3
Data description article
 | 
12 Mar 2026
Data description article |  | 12 Mar 2026

The PAGES CoralHydro2k Seawater δ18O Database: a FAIR-aligned compilation of seawater δ18O data to uncover “hidden” insights from the global ocean

Alyssa R. Atwood, Andrea L. Moore, Kristine L. DeLong, Sylvia E. Long, Sara C. Sanchez, Jessica A. Hargreaves, Chandler A. Morris, Raquel E. Pauly, Émilie P. Dassié, Thomas Felis, Antje H. L. Voelker, Sujata A. Murty, and Kim M. Cobb

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Short summary
The stable isotopic composition of seawater is a valuable tool for studying the global water cycle in the past, present, and future. However, an active repository dedicated to archiving this type of data has been lacking, and many datasets remain hidden from public view. We have created a new database of observational seawater isotope data that is rich in metadata, publicly accessible, and machine readable to increase its availability and usability for a variety of Earth Science applications.
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