MORPHOMETRIC AND GEOMORPHOLOGICAL CHARACTERIZATION IN THE MUNICIPALITY OF VIÇOSA DO CEARÁ, CEARÁ, BRAZIL

Résumé

Geomorphological science aims to study landforms on the Earth's surface and explain their formation and genesis. Cartography, in this case, geomorphological mapping, is used to represent geomorphological features. The method for hierarchizing the relief was based on Ross (1992); for morphometric characterization, the ALOS PALSAR Digital Elevation Model (DEM) with a spatial resolution of 12 meters was used for hypsometry, slope, and the Relief Dissection Index (RDI) maps; and for vertical curvature, the TOPODATA project used the DEM from the SRTM mission. The classification and systematization of morphological units was based on the work of Dantas, Lacerda, and Maia (2023). The municipality of Viçosa do Ceará presents morphostructures of the Parnaíba Sedimentary Basin and the Ancient Shield and Massif Domains; The Ibiapaba Cuesta, the Sertaneja Surface, and the Crystalline Residual Plateaus are considered morphosculptures, and each morphosculpture represents a distinct morphological unit. Given these assumptions, this work contributes to exploratory research that serves as a basis for future scientific investigations on geomorphological mapping. The objective was to characterize three taxonomic and morphometric levels of the municipality of Viçosa do Ceará, Ceará.