Constraining gravity inversion using interpreted GPR data

Summary The Gravity survey and GPR have been widely used geophysical techniques. However, each suffer from inherent limitations. One approach for improvement of geophysical survey is to develop algorithms that incorporate data from multiple sensory systems. To this effect, this research employed GPR data as constraints for microgravity inversion technique. A GA-based gravity inversion was developed where the interpreted GPR data was imposed on the inversion. The results of a filed trial survey over a buried utility tunnel demonstrated improvement in identifying a utility tunnel by the proposed GPR-constrained microgravity inversion.