Banca de QUALIFICAÇÃO: RAFAEL BITTENCOURT KIFFER

Vulnerability of aquifers in Hydrological Planning Units (UHP): 

case study Rio Guandu-Mirim and Coastal Basins, municipality of Rio de Janeiro, RJ

Contamination, management, geophysical data, lineaments, SIG

Aquifer vulnerability studies have been developed in order to identify areas more susceptible to contamination. To this end, methods of vulnerability of aquifers to contamination are widely used, serving as a tool for the management of groundwater resources. The study area of this work corresponds to the Guandu-Mirim and Coastal Basins Hydrological Planning Units (UHPs), inserted in the Hydrographic Region II of the state of Rio de Janeiro. The study aims to map the vulnerability of aquifer contamination, of sedimentary and fractured types, through the integration of thematic maps, aerogeophysical data and field data using Geographic Information Systems (GIS's). wells were selected for graphics generation: static level, depth, maximum flow and specific flow, as well as for the application of the GOD methodology of aquifer vulnerability. After plotting the lineaments in the Digital Elevation Model, it can be observed that there are mainly lineaments in the NE-SW direction and, subordinately, in the NW-SE and E-W directions. The interpretation of aerogeophysical data showed that the lineaments obey the preferential direction NNE-SSW, at different depths and allowed to identify anomaly with dipole characteristic, that is, with the presence of a positive signal to the north/northeast/northwest with a low amplitude and a negative sign to the south/southeast/southwest with more intense amplitudes. The DEM and aerogeophysical data are excellent tools for delimiting lineaments.