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)
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.
Publication open access journal
- Gensen, M.R.A., Warmink, J.J., Huthoff, F., Hulscher, S.J.M.H., 2020. Feedback Mechanism in Bifurcating River Systems: the Effect on Water-Level Sensitivity. Water 12, 1915. https://doi.org/10.3390/w12071915.
- Gensen, M.R.A., Warmink, J.J. & Hulscher, S.J.M.H. (2019) River dune based roughness uncertainty for the Dutch Rhine branches. Marine and River Dune Dynamics VI, Bremen, Germany.
- Gensen, M.R.A., Warmink, J.J. & Hulscher, S.J.M.H. (2020) Water level uncertainties due to uncertain bedform dynamics in the Dutch Rhine system. In Kalinowska, M.B., Mrokowska, M.M., Rowínski, P.M. (Eds.): Recent trends in Environmental Hydraulics: 38th International School of Hydraulics.
Last modified: 15/10/2021