Abstract
This study aimed to generate the components for morphometric analysis of the watershed of the Sao Francisco River Lower Basin from geoprocessing and remote sensing surface. SRTM data were used for preparation of digital elevation model (DEM), elements such as flow accumulation, flow direction, flow length and others were obtained by processing ArcHydro tool of ArcGIS 9.3 software. The results showed that the Sao Francisco River Low middle Basin has a total area of 110.446,0 km ² and a perimeter of 3.834,8 km, the drainage network is moderately branched having a total length of 22.283,6 km with a main course of 720 km, the basin showed a more elongated shape, with a density of less than 0.2 km/km 2 drainage as well as low-density area, the predominant class of slope is the floodplain type and plan to undulated represented about 90% of the total area the basin. Classes roofing composed of arborel and shrubby Caatinga, shrubby low Caatinga and Grasslands dominate the landscape occupying an area of 60.385,7; 18.998,5 and 22.737,5 km 2 , respectively. Different landforms were identified in the watershed based on SRTM (DEM) data with 90 m spatial resolution. GIS techniques were thus characterized by high precision mapping and measurement of morphometric indices and revealed themselves as a tool with great potential for watershed management.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
