Bed level change in the Upper Rhine Delta and Niederrhein

Conference Paper (2020)
Author(s)

Claudia Ylla Arbós (TU Delft - Rivers, Ports, Waterways and Dredging Engineering)

A Blom (TU Delft - Rivers, Ports, Waterways and Dredging Engineering)

F. Acevedo Goldaracena (TU Delft - Hydraulic Structures and Flood Risk)

S van Vuren (Rijkswaterstaat)

Ralph M.J. Schielen (Rijkswaterstaat)

Research Group
Rivers, Ports, Waterways and Dredging Engineering
Copyright
© 2020 C. Ylla Arbos, A. Blom, F. Acevedo Goldaracena, S van Vuren, R.M.J. Schielen
More Info
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Publication Year
2020
Language
English
Copyright
© 2020 C. Ylla Arbos, A. Blom, F. Acevedo Goldaracena, S van Vuren, R.M.J. Schielen
Research Group
Rivers, Ports, Waterways and Dredging Engineering
Pages (from-to)
680-684
ISBN (print)
978-0-367-62773-7
ISBN (electronic)
978-1-003-11095-8
Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Abstract

The Rhine reach comprising the Niederrhein and the Upper Rhine Delta is characterized by a long history of engineering interventions. The area is densely populated and the Rhine, the main inland waterway in Europe, justifying the need for such measures. Interventions have had a strong impact on morphodynamic channel characteristics. We use bed level data collected since 1926 to assess large scale bed level change in the Upper Rhine Delta and Niederrhein. The field data show various trends both at the large scale and locally. A reduction of the main channel slope is observed in the Waal and the IJssel branches of the Rhine Delta, achieved through bed degradation. In the Pannerdensch Kanaal-Nederrijn-Lek branch, the morphoynamics are controlled by three weirs, downstream of which degradation has developed. The downstream half of the Niederrhein has degraded, resulting in a slope increase. Most of the domain has remained relatively stable for at least 20 years. The observed trends provide insight on the river response to interventions, which helps to better understand degradation processes, in model calibration, and in anticipating future change of channel geometry.

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