Abstract
In bifurcating river systems, river interventions affect the water levels in all of the downstream branches. An accurate impact quantification is therefore import ant. However, the hydraulic models used to estimate these impacts are inherently uncer tain. This study assesses the impact of a dike set-back and its uncertainty in a bifurcating river system using a 1D network model. The results show that the presence of the river bifurcation strongly decreases the maximum water level reduction and the uncertainty of it. Generally, the uncertainty of the impact scales with the impact itself. However, in a bifurcating river system, the hydraulic roughness parameters that cause the uncertainty in the impact, also have an own influence on the discharge distribution. These interactions all affect the uncertainty of the impact in a bifurcating river system. The knowledge on these interactions can aid in the decision process for the future design of interventions near bifurcations.
| Original language | English |
|---|---|
| Title of host publication | River Flow 2020 |
| Subtitle of host publication | Proceedings of the 10th Conference on Fluvial Hydraulics (Delft, Netherlands, 7-10 July 2020) |
| Editors | Wim Uijttewaal, Mario J. Franca, Daniel Valero, Victor Chavarrias, Claudia Ylla Arbos, Ralph Schielen, Alessandra Crosato |
| Place of Publication | London |
| Publisher | CRC Press/Balkema |
| Pages | 1890-1898 |
| ISBN (Electronic) | 978-1-003-11095-8 |
| ISBN (Print) | 978-0-367-62773-7 |
| Publication status | Published - 2020 |
| Event | 10th Conference on Fluvial Hydraulics, River Flow 2020 - Delft, Netherlands Duration: 7 Jul 2020 → 10 Jul 2020 Conference number: 10 |
Conference
| Conference | 10th Conference on Fluvial Hydraulics, River Flow 2020 |
|---|---|
| Abbreviated title | River Flow |
| Country/Territory | Netherlands |
| City | Delft |
| Period | 7/07/20 → 10/07/20 |