What is it about?
During floods, bridge clogging due to woody debris transport can exacerbate hydraulic hazard, both because of backwater rise and of a sudden breakage of the accumulation that could cause an increase in water levels and downstream flow discharge. These phenomena are very complex to model and still require many studies, both theoretical and experimental. In this manuscript we introduce a suitable method, to treat the problem on a large territorial scale, where computational costs make a detailed treatment of local phenomena very difficult.
Featured Image
Why is it important?
Local phenomena like bridge clogging may have consequence on water levels and flow hydrograph during a flood. It must be duly taken into account in the modelling in order to carry out reliable analysis at the basin scale in particular for the reconstruction of past events.
Perspectives
The method is presented as a predictive method. However it can be used also for "what if" scenarios when the formation of the accumulation is expected. Future development of the research may deal with the use of the method in a predictive way setting the focus on the possibility to estimate the backwater and the flow discharge that can lead to the burst.
Margherita Lombardo
Universita degli Studi della Calabria
Read the Original
This page is a summary of: Roughness‐Based Method for Simulating Hydraulic Consequences of Both Woody Debris Clogging and Breakage at Bridges in Basin‐Scale Flood Modeling, Water Resources Research, December 2021, American Geophysical Union (AGU),
DOI: 10.1029/2021wr030485.
You can read the full text:
Contributors
The following have contributed to this page
