Biblioteca Digital de VanguardiaCondicionantes Morfológicos e Geológicos dos Escorregamentos Rasos na Bacia do Rio Santo Antônio, Caraguatatuba/SP
The aim of this paper was to analyze the influence of morphological and geological parameters on the landslides occurrence on Santo Antônio basin, which was highly affected by landslides and debris flow in 1966/1967 summer season. The production of morphological and geological maps were based on a h...
| Autores principales: | , , |
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| Formato: | info:eu-repo/semantics/article |
| Lenguaje: | Portugués |
| Publicado: |
Universidade de São Paulo. Faculdade de Filosofia, Letras e Ciências Humanas
2017
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| Materias: | |
| Acceso en línea: | https://www.revistas.usp.br/rdg/article/view/132714 http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/42243 |
| Sumario: | The aim of this paper was to analyze the influence of morphological and geological parameters on the landslides occurrence on Santo Antônio basin, which was highly affected by landslides and debris flow in 1966/1967 summer season. The production of morphological and geological maps were based on a high-resolution (5 m²) digital elevation model (DEM) and a detailed geological map of Mineral Resources Research. From this, it was made an evaluation based on analysis of an agreement between predicted susceptibility and the landslide scar’s map from aerial photographs and orthophotos from 1973. The results showed concave slopes and angles > 30º as the most susceptible areas. Thus, it is possible verify preferred classes to landslide occurrence on Santo Antônio basin, an important factor to future risk mapping of the area. |
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