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-30-5901-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-30-5901-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 30, issue 18
Research article
 | 
17 Sep 2026
Research article |  | 17 Sep 2026

Undercatch corrected gridded precipitation data to improve hydrological modeling in high-alpine orography

Philipp Maier, Caroline Ehrendorfer, Sophie Lücking, Thomas Pulka, Fabian Lehner, Mathew Herrnegger, Herbert Formayer, and Franziska Koch

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Short summary
Snow and rainfall measurements in mountain regions often underestimate the true amounts. We developed a method to correct Austrian precipitation data using weather stations and terrain features. The corrected data greatly improves runoff, snow and glacier modeling. This work shows that considering measurement errors is important for accurately assessing water resources, which is increasingly relevant as climate change affects alpine water systems supplying hydropower and downstream communities.
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