Estudo geomorfológico a partir do uso de sistema de informações geógraficas (Landsat 8 e Topodata): um estudo de caso na sub-bacia do Riacho Santana-RN

Abstract

Studies of physical and territorial planning needs to take into account both the physical and environmental aspects as well as the space occupation of context and are privileged relevantly the survey of geomorphological information given geographic region. Cartography geomorphological fits in this context as an important means of representation of the features of the Earth's relief, which currently has with advanced features for the survey, analysis and management of such information. Therefore, this study aimed to present the geomorphological compartmentation of the sub-basin of the Santana-RN Creek, through the use of geoprocessing techniques (SIGs), SRTM images (NASA) Landsat 8 images, in addition to the database geosciences the TOPODATA having as theoretical basis the Ross assumptions (1992). the observations of the RadamBrasil Project (1971/1981), and the Technical Manual of Geomorphology (IBGE, 1994). All available for free and with little access. A case study was used as an example to show them how we can produce data used in geographic and geomorphological science. Were defined in the study area the first four taxon of the classification proposed by this author, it was possible to verify that the use of materials and methods adopted proved effective, contributing to the preparation of geomorphological compartmentation map area of the Riacho Santana -RN sub-basin.