Proceedings of IAHS
Proceedings of IAHS
PIAHS
Articles | Volume 383
Articles | Volume 383
https://doi.org/10.5194/piahs-383-129-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/piahs-383-129-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 383
Post-conference publication
 | 
16 Sep 2020
Post-conference publication |  | 16 Sep 2020

Geomorphometry-based modelling of discharge series in ungauged basins – Robustness regarding DEM sources

Stéphane Ecrepont and Christophe Cudennec

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Latest update: 26 Jul 2026
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Short summary
The sensitivity of a geomorphology-based hydrological modelling is evaluated according to four DEMs from 5 m to 50 m resolution in Brittany, France. A set of 8 basins (5–565.7 km2) is used in a pseudo-ungauged context to explore the potential of Prediction in Ungauged Basin (PUB). The results show that a coarse-worldwide DEM such as SRTM (25 m) supported similar performances than the finer one available from the French mapping institute.
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