To evaluate the role of submarine ground-water discharge and the dynamics of the fresh water/salt water interface, Tampa Bay Study scientists utilized both stationary and streaming multi-electrode DC resistivity. Processed resistivity (reciprocal of electrical conductivity) models were used to examine the subsurface hydrogeology. (Electrical resistivity is measured in Ohm-m.)
USGS scientists, in cooperation with Eckerd College and the University of South Florida, used such geophysical methods to identify sites where groundwater discharge might occur in Tampa Bay and examined the dynamics of the fresh water / salt water interface. Knowledge of these processes improved the ability to manage the water quality of both Tampa Bay and the surrounding groundwater resources.