Hydrology and Earth System Sciences
Hydrology and Earth System Sciences
HESS
Articles | Volume 30, issue 18
Articles | Volume 30, issue 18
https://doi.org/10.5194/hess-30-5971-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-30-5971-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 30, issue 18
Research article
 | 
24 Sep 2026
Research article |  | 24 Sep 2026

The Canadian Surface Reanalysis (CaSR) v3.2 precipitation dataset: a 45-year high-resolution analysis for North America (1980–2024)

Dikraa Khedhaouiria, Nicolas Gasset, Vincent Fortin, Milena Dimitrijevic, Maxim Bulat, and Xihong Wang

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Latest update: 24 Sep 2026
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Short summary
This study presents a new high-resolution precipitation dataset covering North America over the past 45 years. Unlike most reanalysis products that rely mainly on weather models, it directly incorporates ground-based weather station observations. This results in more reliable precipitation estimates than the previous version and commonly used reanalyses, especially in regions with few measurements, supporting studies of water resources, floods, droughts, and climate impacts.
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