INTERACTIONS BETWEEN RAINFALL AND INTENSIFICATION OF GEOMORPHOLOGICAL PROCESSES IN URBAN RIVER BASINS: A STUDY APPLIED IN THE RIO GRANDE AND RIO ANIL URBAN BASINS, IN THE RIO DE JANEIRO CITY

Abstract

In urban areas, extreme rainfall events can trigger catastrophic erosion and hydrological processes when associated with disordered forms of land use and land change. In order to prove this, the objective of this study was to analyze the pluviometric conditions and the history of extreme events that caused mass movements end floods; in the Rio Grande and Rio Anil urban river basins, in the Rio de Janeiro city. The results showed that the spatial selectivity of urban planning policies combined with high regional rainfall has intensified the magnitude and effects of surface phenomena in the studied basins, increasing the risks to the vulnerable population.