Articles | Volume 29, issue 17
https://doi.org/10.5194/hess-29-4073-2025
https://doi.org/10.5194/hess-29-4073-2025
Research article
 | 
03 Sep 2025
Research article |  | 03 Sep 2025

The value of observed reservoir storage anomalies for improving the simulation of reservoir dynamics in large-scale hydrological models

Seyed-Mohammad Hosseini-Moghari and Petra Döll

Model code and software

WaterGAP v2.2e H. Müller Schmied et al. https://doi.org/10.5281/ZENODO.10026943

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Short summary
Modeling reservoir outflow and storage is challenging due to limited publicly available data and human decision-making. For 100 reservoirs in the US, we examined how calibrating reservoir algorithms against outflow and storage-related variables affects performance. We found that calibration notably improves storage simulations, while outflow simulations are more influenced by the quality of inflow data. We recommend using remotely sensed storage anomalies to calibrate reservoir algorithms.
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