This project evaluates the spatial distribution and volume of the fresh and brackish (saline) groundwater resources on the Osage Nation in Oklahoma. This investigation will evaluate the sources of water and water use in the Reservation through activities such as historical water use, characterization of water wells, and predicting the potential effects of groundwater overdraft and contamination from upwelling of deeper saline water. A key part in understanding and utilizing Earth resources is to construct a geological framework model. The geological framework model for the Osage Nation will be greatly enhanced by the use of airborne electromagnetic (AEM) surveys. The AEM survey system transmits an electromagnetic signal that induces electrical currents in the Earth, which are then detected by receiver coils. The mapped distribution of the currents will provide insight into the subsurface distribution of the groundwater resources and the characteristics of the aquifers.
Schematic of an Airborne Electromagnetic Sensor.