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Debris Flow and Flood Susceptibility Using Remote Sensing and GIS data: A Case of the Central Andes of Chile (33°13’ -33°30’)
* 1, 2 , 1 , 1 , 1, 3 , 1, 3 , 4, 5, 6
1  Hémera Centro de Observación de la Tierra, Escuela de Ingeniería Forestal, Facultad de Ciencias, Ingenieríay Tecnología, Universidad Mayor, Santiago 8580745, Chile
2  Departamento de Ingeniería cartográfica, Geodesia y Fotogrametría, Universitat Politècnica de València, Valencia 46022, Spain
3  Departamento de Ingeniería cartográfica, Geodesia y Fotogrametría, Universitat Politècnica de València, Valencia 46022, Spain
4  Departamento de Ciencias Geográficas, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Valparaíso 2360002, Chile
5  Laboratorio de Teledetección Ambiental (TeleAmb), Universidad de Playa Ancha, Valparaíso 2360002, Chile
6  HUB-AMBIENTAL UPLA, Universidad de Playa Ancha, Valparaíso 2360002, Chile
Academic Editor: Javier F. Calleja

https://doi.org/10.3390/ECRS2023-16657 (registering DOI)
Abstract:

In the study area, landslides represent the most frequent geological-geomorphological hazard in mountain environments, causing damage to infrastructure, local economies and loss of human lives. A landslide susceptibility map was developed, based on the sum of the weighted scores of the landslides conditioning factors. 21% of the study area is in high and very high susceptibility zones to be affected by landslides. These areas are concentrated in the headwaters of basins, valley bottoms, steep slopes and in the main riverbeds and streams.

Keywords: susceptibility; debris flow; debris flood; landslides; GIS; remote sensing; Santiago; Andes centrales Chile
Comments on this paper
Christian Stokes
Given that bio-based materials may both fulfill the technical criteria of flame retardant technology and play a role in resolving environmental issues, what are the particular possibilities and problems involved with their use as flame retardants?

Douglas Stanton
The development of a landslide susceptibility map is crucial for assessing and mitigating geological-geomorphological hazards in mountain environments. With landslides posing significant risks to infrastructure, economies, and human lives, understanding susceptibility zones is essential for effective risk management. The identification of high and very high susceptibility zones, covering 21% of the study area, highlights critical areas prone to landslide occurrences. These areas include headwaters, valley bottoms, steep slopes, and riverbeds, emphasizing the importance of targeted mitigation strategies in vulnerable regions. By providing valuable insights into landslide susceptibility, this study contributes to enhancing resilience and reducing the impact of geological hazards in mountainous terrain.

kalyl cie
The study area in the Central Andes of Chile is prone to geological-geomorphological hazards, with landslides being the most frequent occurrence. These events pose risks to infrastructure, local economies, and human lives. To assess susceptibility to landslides, a map was developed by weighting various conditioning factors. Results indicate that 21% of the study area is highly susceptible to landslides, particularly in headwaters of basins, valley bottoms, steep slopes, and main riverbeds and streams.

Donald Bauer
The development of a landslide susceptibility map for the Central Andes of Chile sheds light on the significant risks posed by geological-geomorphological hazards in the region. Identifying areas with high susceptibility, such as headwaters of basins, valley bottoms, and steep slopes, provides valuable insights for policymakers, urban planners, and local communities to prioritize mitigation efforts and enhance resilience.




 
 
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