Morphological changes in a two channel system in the River Ain (France) near the village Mollon. (Source: IGN-France, Google Earth)
Innovative components
We study the conditions under which side channels generally aggrade or degrade, and estimate the characteristic time scale of the associated morphodynamic change. We present these results in a set of diagrams with which the equilibrium state of a side channel and the time scale of developme
nt can be estimated for a range of side channel conditions. These can support the future design and maintenance of side channel systems.
Implications to practice
- We propose diagrams to estimate side channel development.
- Both the equilibrium state and the time scale of side channels in which bed load of the main channel is deposited can be estimated (view storyline for an scrollable overview for interested professionals).
Related Content
Publication
- van Denderen, R. P., Schielen, R. M. J., Blom, A., Hulscher, S. J. M. H., & Kleinhans, M. G. (2017). Morphodynamic assessment of side channel systems using a simple one-dimensional bifurcation model and a comparison with aerial images. Earth Surface process and landforms Journal. DOI: 10.1002/esp.4267.
- van Denderen, R. P., Schielen, R. M. J., Blom, A., Kleinhans, M. G., & Hulscher, S. J. M. H. (2016). Characteristics of side channels in the River Ain, France. In G. Constantinescu, M. Garcia, & D. Hanes (Eds.), Proceedings of the international conference on fluvial hydraulics (River Flow 2016), St. Louis, USA, 11-14 July 2016 (pp. 220-228). Boca Raton: CRC Press – Taylor & Francis group.
- Here is also available the list of related conference abstracts and (under)graduate thesis with progress results of the main researcher or contributors to this project.
Dataset access
Source code and results of the 1D bifurcation model and series of aerial image series that are used in the publication.
Related outputs
Explaining artificial side channel dynamics using data analysis and model calculations
We studied in detail the development of a side channel in the river Waal. A more frequently flowing side channel results in lower aggradation or sedimentation.
15/02/2018 by Pepijn van Denderen et al.
Contains: Dataset access
Last modified: 29/01/2019
How do side channels develop?
We assess several side channel systems and propose a method to estimate their development.
Pepijn van Denderen
University of Twente
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