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Publication type: Article in scientific journal
Type of review: Peer review (publication)
Title: Continuous seasonal and large-scale periglacial reservoir sedimentation
Authors: Ehrbar, Daniel
Schmocker, Lukas
Döring, Michael
Cortesi, Marco
Bourban, Gerald
Boes, Robert M.
Vetsch, David F.
DOI: 10.21256/zhaw-4815
Published in: Sustainability
Volume(Issue): 10
Issue: 9
Page(s): 3265
Issue Date: 2018
Publisher / Ed. Institution: MDPI
ISSN: 2071-1050
Language: German
Subjects: Reservoir sedimentation; Numerical 1D model; Climate change; Periglacial environment
Subject (DDC): 551: Geology and hydrology
620: Engineering
Abstract: Sustainable reservoir use is globally threatened by sedimentation. It has been generally recognized that inadequate consideration of reservoir sedimentation has caused the worldwide decline of net storage. Numerical models are useful tools to simulate sedimentation processes and can be used to derive efficient counter-measures and sediment management strategies. They can be applied to both existing and potential future reservoirs to predict long-term sedimentation. In this study, an application of a simple, robust, and stable numerical 1D model to Gebidem reservoir in Switzerland accompanied by field measurements is presented. It focusses on seasonal and large-scale reservoir sedimentation processes that occur continuously throughout the whole deposition season, while episodic events like turbidity currents are not taken into account. The model simulates both the delta formation of coarse sediments and the lake-wide sedimentation from homopycnal flows. The model is used to assess the effects and significance of varying boundary conditions like inflow, suspended sediment concentration, particle size distribution (PSD), or reservoir operation. It will be demonstrated that future reservoir operation and PSD are as important as future runoff evolution. Based on these findings, implications on future reservoir operation, also considering climate change, are discussed. Finally, an outlook on pending research topics is given.
Fulltext version: Published version
License (according to publishing contract): CC BY 4.0: Attribution 4.0 International
Departement: Life Sciences and Facility Management
Organisational Unit: Institute of Natural Resource Sciences (IUNR)
Appears in collections:Publikationen Life Sciences und Facility Management

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Ehrbar, D., Schmocker, L., Döring, M., Cortesi, M., Bourban, G., Boes, R. M., & Vetsch, D. F. (2018). Continuous seasonal and large-scale periglacial reservoir sedimentation. Sustainability, 10(9), 3265.
Ehrbar, D. et al. (2018) ‘Continuous seasonal and large-scale periglacial reservoir sedimentation’, Sustainability, 10(9), p. 3265. Available at:
D. Ehrbar et al., “Continuous seasonal and large-scale periglacial reservoir sedimentation,” Sustainability, vol. 10, no. 9, p. 3265, 2018, doi: 10.21256/zhaw-4815.
EHRBAR, Daniel, Lukas SCHMOCKER, Michael DÖRING, Marco CORTESI, Gerald BOURBAN, Robert M. BOES und David F. VETSCH, 2018. Continuous seasonal and large-scale periglacial reservoir sedimentation. Sustainability. 2018. Bd. 10, Nr. 9, S. 3265. DOI 10.21256/zhaw-4815
Ehrbar, Daniel, Lukas Schmocker, Michael Döring, Marco Cortesi, Gerald Bourban, Robert M. Boes, and David F. Vetsch. 2018. “Continuous seasonal and large-scale periglacial reservoir sedimentation.” Sustainability 10 (9): 3265.
Ehrbar, Daniel, et al. “Continuous seasonal and large-scale periglacial reservoir sedimentation.” Sustainability, vol. 10, no. 9, 2018, p. 3265,

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