Hydrology and Earth System Sciences
Hydrology and Earth System Sciences
HESS
Articles | Volume 30, issue 17
Articles | Volume 30, issue 17
https://doi.org/10.5194/hess-30-5749-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-30-5749-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 30, issue 17
Research article
 | 
11 Sep 2026
Research article |  | 11 Sep 2026

Explicit representation and calibration of different landscape units for a robust catchment DOC export model

Tam V. Nguyen, Rohini Kumar, José L. J. Ledesma, Pia Ebeling, Jan H. Fleckenstein, and Andreas Musolff

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Short summary
Lumped and landscape-explicit dissolved organic carbon (DOC) models are commonly calibrated using stream DOC concentrations, while internal DOC dynamics in different model compartments are not given enough attention. Our study shows that stream DOC alone is insufficient to constrain internal DOC dynamics. Applying models calibrated in this way under changing boundary conditions may therefore lead to unrealistic results.
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