Acessibilidade / Reportar erro

Morphometric measures of Córrego Rico catchments, Mogi-Guaçu River, State of São Paulo, Brazil

This study had as its objective to evaluate the morphometric characteristics of the catchments of the Córrego Rico watershed, the sub-basin of the Mogi-Guaçu River, located in the administrative region of Ribeirão Preto, the State of São Paulo, Brazil, in order to measure physical parameters and topographical features of the natural drainage system. The procedures for obtaining the data were all based on remote sensing and geographic information systems. The topographic maps corresponding to the study area were extracted for analysis in the geographical information systems ArcView of the dimensional characteristics of the drainage and relief patterns. The watershed is considered a sixth order of magnitude basin, with 542 km² of area, with 85 catchments of the second order, 22 catchments of the third order, 4 catchments of the fourth order and 2 catchments of the fifth order. Using the geometric criterion, at the upriver sub-basins, the predominant models are dendritic and subdendritcs, while downstream the subparallel model is predominant, respectively, in the areas of occurrences of Bauru sandstones and effusive rocks.

Morphometric analysis; Remote sensing; Hydrology


Sociedade de Investigações Florestais Universidade Federal de Viçosa, CEP: 36570-900 - Viçosa - Minas Gerais - Brazil, Tel: (55 31) 3612-3959 - Viçosa - MG - Brazil
E-mail: rarvore@sif.org.br