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Feedback mechanism in bifurcating river systems

Published on 16/06/2024 by Gensen, M.R.A.; Warmink, J.J.; Huthoff, F.; Hulscher, S.J.M.H.

Contact details

Matthijs R.A. Gensen

University of Twente

Output contains: Conference proceedings Publication open access journal

Map of the study area in the Netherlands. The three triangles indicate the representative locations for the water levels in the three downstream branches under consideration in this study. The six circles indicate the locations at which measurements of bedform dimensions are available (Source: Gensen et al. 2020)

Innovative components

We quantify the water level variations for high and low roughness in the main channel when considering or not the feedback mechanism between the discharge at the bifurcation and the water levels.

Implications to practice

The roughness conditions in the larger Waal branch dominate the water level variations throughout the entire river system. The conditions in the smaller Nederrijn and IJssel branches cause much smaller water level variations. Therefore, we may allow for less restrictive management in the Nederrijn and IJssel branches.

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Last modified: 15/10/2021