Adra town Ecuador Everglades National Park (ENP) Federal district of Brazil Jurassic dolomite aquifer Metropolitan District of Quito Portugal Santo André Lagoon Spain aquifer geometry borehole samples climate change contamination deposition patterns dipole-dipole electrical resistivity electrical resistivity tomography electromagnetism ephemeral gravel-bed stream formation factor fractures geophysical prospecting techniques geophysics ground penetrating radar groundwater groundwater research groundwater resource evaluation groundwater-dependent ecosystem hydrochemistry hydrogeological map