Mapeamento geoambiental como subsídio na determinação de áreas de instabilidades da faixa de dutos Osvat/Osplan - São Sebastião, SP

• Autor(a) principal: de Moura, Cristiane Alessandra [UNESP]
• Data de Publicação: 2011
• Outros Autores: de Mattos, Juércio Tavares [UNESP], Jiménez-Rueda, Jairo Roberto [UNESP]
• Tipo de documento: Artigo
• Idioma: eng; por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://www.periodicos.rc.biblioteca.unesp.br/index.php/geociencias/article/view/5588; http://hdl.handle.net/11449/72933
• topic: Geoenvironment mapping; Linear engineering works and map of environmental susceptibility; Remote sensing; damage; drainage network; engineering geology; geotechnical mapping; instability; Landsat; pipeline; remote sensing; Brazil; Sao Paulo [Brazil]; Sao Sebastiao

Works of linear engineering such as roads, pipelines and transmission lines have specific mapping due to their large scale impact on the environment, thus requiring mapping methods that are both efficient and of low cost. This paper presents a proposal of Geoenvironmental mapping for works linear. The work chosen for the implementation of the method was the Osvat/Osplan pipeline located in the cities of São Sebastião and Caraguatatuba. The geoenvironment mapping was elaborate trough photo-interpretation of images of the ETM+/Landsat-7 sensor and analysis of the drainage network, thus resulting in the partitioning of the geoenvironmental units and the fracture area (structural lineaments and lines of strikes), these maps were subsequently integrated into a product called Map of environmental susceptibility to gravitational and erosive processes, which helped define the areas with potential geotechnical problems that could damage both the pipeline and the environment.