Articles | Volume 12, issue 7
Research article
06 Jul 2021
Research article |  | 06 Jul 2021

Four-dimensional tracer flow reconstruction in fractured rock through borehole ground-penetrating radar (GPR) monitoring

Peter-Lasse Giertzuch, Joseph Doetsch, Alexis Shakas, Mohammadreza Jalali, Bernard Brixel, and Hansruedi Maurer

Data sets

Single-Hole and Cross-Hole Time-Lapse GPR 250MHz Borehole Dataset during Salt Tracer injection Peter-Lasse Giertzuch, Joseph Doetsch, Bernard Brixel, and Mohammadreza Jalali

Short summary
Two time-lapse borehole ground penetrating radar (GPR) surveys were conducted during saline tracer experiments in weakly fractured crystalline rock with sub-millimeter fractures apertures, targeting electrical conductivity changes. The combination of time-lapse reflection and transmission GPR surveys from different boreholes allowed monitoring the tracer flow and reconstructing the flow path and its temporal evolution in 3D and provided a realistic visualization of the hydrological processes.