Analysis of the Uraricoera and Tacutu river basins, Roraima
Geomorphometric analysis for morphometric characterisation and compartmentalisation
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The main objective of this research is to carry out geomorphometric and physiographic analyses of the hydrographic basins of the Uraricoera and Tacutu Rivers, with the aim of characterising and compartmentalising them. The methodology used was based on analyses of gemorphometric parameters obtained from SRTM (Shuttle Radar Topography Mission) elevation models, to delimit the basins and generate products such as declivity, hypsometry, shaded relief and the longitudinal profile, processed in the Quantum Gis 2.4 and Envi 4.7 programmes. The results obtained were updated and more precise data on t...
The main objective of this research is to carry out geomorphometric and physiographic analyses of the hydrographic basins of the Uraricoera and Tacutu Rivers, with the aim of characterising and compartmentalising them. The methodology used was based on analyses of gemorphometric parameters obtained from SRTM (Shuttle Radar Topography Mission) elevation models, to delimit the basins and generate products such as declivity, hypsometry, shaded relief and the longitudinal profile, processed in the Quantum Gis 2.4 and Envi 4.7 programmes. The results obtained were updated and more precise data on the morphometric parameters of the basin, such as area, perimeter, shape index, geomorphological characterisation based on the compartmentalisation of the denudational and aggradational systems, as well as the delimitation of the upper, middle and lower reaches of both basins. Based on some data, we consider the Uraricoera hydrographic system to be the main one in the Upper Rio Branco, whose drainage covers an area of 49,942 km2, with a perimeter corresponding to 1,641 km and a length of 498,106 km.
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