Caracterização morfológica e climática da sub-bacia do córrego Cana-Brava do município de Guaraciama – MG

Abstract

The aim of this research was to study the watershed`s morphometric characteristics and climate characterization of the Cana-Brava’s streamlet located at Guaraciama – MG, Brazil, and generate topographic models of the area. This watershed represents the High Jequitinhonha region, of the UPGRH – JQ1. The data base was obtained from the vectorial topographical maps of Bocaíuva – MG, with the objective to generate the morphometric indices and topographic models of the watershed. It was used the software AutoCAD 2004 and ArcGIS 9.1. It was also used information of the average temperature, precipitation, evaporation and humidity, obtained in climate information manuals (1961 to 1990), from 8 Climate Centers from the State of Minas Gerais, near from the watershed, with the objective to spatialize the parameter in the ArcGIS 9.1 software. However, it was observed that this watershed has intermediate tendency to overflowing, medium drainage density, and with predominance of the plan relief. In terms of climate, it was possible to observe seasonality of the precipitation and no typical winter season. And finally, the ArcGIS 9.1 software proved to be an important and fundamental tool for hydrology studies.