Articles | Volume 24, issue 7
https://doi.org/10.5194/hess-24-3493-2020
https://doi.org/10.5194/hess-24-3493-2020
Research article
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13 Jul 2020
Research article | Highlight paper |  | 13 Jul 2020

Why does a conceptual hydrological model fail to correctly predict discharge changes in response to climate change?

Doris Duethmann, Günter Blöschl, and Juraj Parajka

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Short summary
We investigate why a conceptual hydrological model failed to correctly predict observed discharge changes in response to increasing precipitation and air temperature in 156 Austrian catchments. Simulations indicate that poor model performance is related to two problems, namely a model structure that neglects changes in vegetation dynamics and inhomogeneities in precipitation data caused by changes in stations density with time. Other hypotheses did not improve simulated discharge changes.