Linking levee-building processes with channel  avulsion: geomorphic analysis for assessing  avulsion frequency and channel reoccupation

Han, Jeongyeon; Kim, Wonsuck

doi:https://doi.org/10.5194/esurf-10-743-2022

Articles | Volume 10, issue 4

https://doi.org/10.5194/esurf-10-743-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/esurf-10-743-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 10, issue 4

Research article

|

22 Jul 2022

Research article |

| 22 Jul 2022

Linking levee-building processes with channel avulsion: geomorphic analysis for assessing avulsion frequency and channel reoccupation

Jeongyeon Han and Wonsuck Kim

Supplement

https://doi.org/10.5194/esurf-10-743-2022-supplement

Data sets

LBM_dataset J. Han and W. Kim https://doi.org/10.5281/zenodo.6822067

Model code and software

Han2021_1DLeveeBuildingModel (v1.0.0) J. Han and W. Kim https://doi.org/10.5281/zenodo.6802570

Short summary

A levee-building model is presented to investigate the effects of flood on levee slope and river behaviors. Coarser grains that cause steep levee slopes lead to frequent switchings of river paths, but higher overflow velocity has an opposite effect. High levee slopes lead to more reoccupations of abandoned old river paths than low levee slopes when rivers switch their locations. The study helps us to assess flood hazards with river-path switching.