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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|
Boes, Robert M.
Vetsch, David F.
|Publisher / Ed. Institution:||MDPI|
|Subjects:||Reservoir sedimentation; Numerical 1D model; Climate change; Periglacial environment|
|Subject (DDC):||551: Geology and hydrology |
|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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|2018_Ehrbar_Continuous_Seasonal_and_Large_Scale_Periglacial_Reservoir_Sedimentation.pdf||5.97 MB||Adobe PDF|
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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. https://doi.org/10.21256/zhaw-4815
Ehrbar, D. et al. (2018) ‘Continuous seasonal and large-scale periglacial reservoir sedimentation’, Sustainability, 10(9), p. 3265. Available at: https://doi.org/10.21256/zhaw-4815.
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, et al. “Continuous seasonal and large-scale periglacial reservoir sedimentation.” Sustainability, vol. 10, no. 9, 2018, p. 3265, https://doi.org/10.21256/zhaw-4815.
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