Articles | Volume 29, issue 6
https://doi.org/10.5194/hess-29-1725-2025
https://doi.org/10.5194/hess-29-1725-2025
Research article
 | 
26 Mar 2025
Research article |  | 26 Mar 2025

Scale dependency in modeling nivo-glacial hydrological systems: the case of the Arolla basin, Switzerland

Anne-Laure Argentin, Pascal Horton, Bettina Schaefli, Jamal Shokory, Felix Pitscheider, Leona Repnik, Mattia Gianini, Simone Bizzi, Stuart N. Lane, and Francesco Comiti

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Cited articles

Abdulla, F. A. and Lettenmaier, D. P.: Development of regional parameter estimation equations for a macroscale hydrologic model, J. Hydrol., 197, 230–257, 1997. a, b
Arnold, N.: Investigating the sensitivity of glacier mass-balance/elevation profiles to changing meteorological conditions: Model experiments for Haut Glacier D'Arolla, Valais, Switzerland, Arc. Antarct. Alp. Res., 37, 139–145, https://doi.org/10.1657/1523-0430(2005)037[0139:ITSOGE]2.0.CO;2, 2005. a
Bárdossy, A. and Das, T.: Influence of rainfall observation network on model calibration and application, Hydrol. Earth Syst. Sci., 12, 77–89, https://doi.org/10.5194/hess-12-77-2008, 2008. a
Bárdossy, A. and Singh, S. K.: Robust estimation of hydrological model parameters, Hydrol. Earth Syst. Sci., 12, 1273–1283, https://doi.org/10.5194/hess-12-1273-2008, 2008. a
Bezinge, A., Clark, M. J., Gurnell, A. M., and Warburton, J.: The management of sediment transported by glacial melt-water streams and its significance for the estimation of sediment yield, Ann. Glaciol., 13, 1–5, https://doi.org/10.3189/S0260305500007527, 1989. a, b
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In this article, we show that by taking the optimal parameters calibrated with a semi-lumped model for the discharge at a catchment's outlet, we can accurately simulate runoff at various points within the study area, including three nested and three neighboring catchments. In addition, we demonstrate that employing more intricate melt models, which better represent physical processes, enhances the transfer of parameters in the simulation, until we observe overparameterization.
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