| Issue |
E3S Web of Conf.
Volume 415, 2023
8th International Conference on Debris Flow Hazard Mitigation (DFHM8)
|
|
|---|---|---|
| Article Number | 05015 | |
| Number of page(s) | 4 | |
| Section | Case Studies and Hazard Assessments | |
| DOI | https://doi.org/10.1051/e3sconf/202341505015 | |
| Published online | 18 August 2023 | |
Morphological characteristics of drainage networks related to landslide cluster in the Colombian Andean
1 Dept. Geociencias y Medio Ambiente, Facultad de Minas, Universidad Nacional de Colombia, Medellín, Colombia
2 Dept. Ingeniería Civil, Facultad de Minas, Universidad Nacional de Colombia, Medellín, Colombia
* Corresponding author: knaranjobe@unal.edu.co
Debris flows are a highly destructive and common phenomena in Colombia. A large percentage are triggered during seasonal rainfalls. And the Andean region is the most affected area, which exhibits a dynamic landscape made up of weak and highly weathered materials and affected by tectonic stress. As a result of this setting, sometimes many landslides are generated in clusters. Those hillslope landslides are the sediment source for the formation of debris flows. The main goal of this study is to know the state of the dynamics of 3 basins that have been affected by cluster landslides and their subsequent debris flows that have occurred in the northern region of the Colombian Andes using diverse morphometric indices. In general terms, the results show a transitory state into basins, with an evident migration along the margins of the network drainages due to unbalance state. This means more susceptible areas with greater geomorphodynamic activity.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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