Articles | Volume 30, issue 14
https://doi.org/10.5194/hess-30-4629-2026
https://doi.org/10.5194/hess-30-4629-2026
Research article
 | 
22 Jul 2026
Research article |  | 22 Jul 2026

Benchmarking reservoir operation schemes for large-scale hydrological models

Jesús Casado-Rodríguez, Juliana Disperati, Stefania Grimaldi, and Peter Salamon

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Cited articles

Abeshu, G. W., Tian, F., Wild, T., Zhao, M., Turner, S., Chowdhury, A. F. M. K., Vernon, C. R., Hu, H., Zhuang, Y., Hejazi, M., and Li, H.-Y.: Enhancing the representation of water management in global hydrological models, Geosci. Model Dev., 16, 5449–5472, https://doi.org/10.5194/gmd-16-5449-2023, 2023. a
Baratgin, L., Polcher, J., Dumas, P., and Quirion, P.: Modeling hydropower operations at the scale of a power grid: a demand-based approach, Hydrol. Earth Syst. Sci., 28, 5479–5509, https://doi.org/10.5194/hess-28-5479-2024, 2024. a
Beven, K. and Freer, J.: Equifinality, data assimilation, and uncertainty estimation in mechanistic modelling of complex environmental systems using the GLUE methodology, J. Hydrol., 249, 11–29, https://doi.org/10.1016/S0022-1694(01)00421-8, 2001. a
Biemans, H., Haddeland, I., Kabat, P., Ludwig, F., Hutjes, R. W., Heinke, J., Bloh, W. V., and Gerten, D.: Impact of reservoirs on river discharge and irrigation water supply during the 20th century, Water Resour. Res., 47, https://doi.org/10.1029/2009WR008929, 2011. a
Burek, P., van der Knijff, J., and de Roo, A.: LISFLOOD. Distributed Water Balance and Flood Simulation Model, Tech. rep., European Commission – Joint Research Centre, Luxembourg, ISBN 879-92-79-33190-9, https://doi.org/10.2788/24719, 2013. a, b
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Short summary
Dams significantly change river flows, yet they are difficult to represent in global hydrological models. We tested four different modeling methods using data from 164 reservoirs to find the most effective approach. We found that tracking water storage is better than tracking outflow for predicting reservoir behavior. This discovery enables the use of satellite information for better water management. These improvements are being implemented in the European and Global Flood Awareness Systems.
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